CN1302947A - Intercooled regenerative two-stroke IC engine - Google Patents
Intercooled regenerative two-stroke IC engine Download PDFInfo
- Publication number
- CN1302947A CN1302947A CN 00100059 CN00100059A CN1302947A CN 1302947 A CN1302947 A CN 1302947A CN 00100059 CN00100059 CN 00100059 CN 00100059 A CN00100059 A CN 00100059A CN 1302947 A CN1302947 A CN 1302947A
- Authority
- CN
- China
- Prior art keywords
- valve
- cylinder
- gas
- internal
- combustion engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001172 regenerating effect Effects 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 65
- 238000002485 combustion reaction Methods 0.000 claims abstract description 59
- 239000007789 gas Substances 0.000 claims description 113
- 230000008569 process Effects 0.000 claims description 55
- 238000010304 firing Methods 0.000 claims description 52
- 230000001914 calming effect Effects 0.000 claims description 47
- 238000009423 ventilation Methods 0.000 claims description 42
- 230000008676 import Effects 0.000 claims description 23
- 239000000567 combustion gas Substances 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 239000012634 fragment Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 description 24
- 230000006835 compression Effects 0.000 description 22
- 239000003921 oil Substances 0.000 description 22
- 238000007599 discharging Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000004087 circulation Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A two-stroke IC engine with intermediate cooling procedure and full recovery of heat from exhausted gas is disclosed. The air compressing cylinder is used as primary one to provide compressed air, and is matched with a volume-variable combustion chamber composed of secondary cylinder and distributing piston. Its advantages are the highest thermal efficiency and relatively high power.
Description
The present invention relates to a kind of internal-combustion engine, particularly in cold, regenerative two-stroke internal combustion engine.See that technically existing internal-combustion engine has developed into very perfect degree, adopt technology such as turbosupercharging further to improve power and efficient again.But from the thermodynamic cycle angle analysis, existing internal-combustion engine is because of being subjected to the restriction of working principle, be difficult in its continuous working procedure to improving the thermal efficiency and add circulations such as backheat, this makes its exhaust gas heat can not get abundant recovery, and its efficient does not also reach high state.
The objective of the invention is by the compressed-air actuated cylinder and by paying variable displacement firing chamber that cylinder and gas distribution piston constitute etc. of calming the anger is provided for the master cylinders setting, allow the firing chamber match again with interstage cooler and regenerator, thereby make internal-combustion engine of the present invention carry out the centre cooling to the air after the compression if having time on the work cycle, be deflated heating by regenerator by pressurized air then, exhaust gas heat is fully reclaimed, and in the work done process of proceeding, be converted into power and outwards export.
This internal-combustion engine of the present invention has adopted following mode of structure, it comprises master cylinders that exhaust valve is housed and the cylinder of calming the anger of intake valve and gas outlet valve is housed, and the displacer in the power piston in the master cylinders and the cylinder of calming the anger links to each other with bent axle in the crankcase through connecting rod respectively.Be provided with the variable displacement firing chamber that is made of gas distribution piston and pair cylinder on the cylinder cap of master cylinders, its vent through being controlled by valve links to each other with master cylinders.The gas distribution piston of paying in the cylinder links to each other with a pair bent axle through connecting rod, and the rotating ratio of paying bent axle and bent axle is 2: 1.In addition, the firing chamber also respectively the ventilation through being controlled by valve import and export and to link to each other with two interfaces of the regenerator that places gas exhaust piping.Calm the anger cylinder through being provided with gas outlet valve air outlet, outlet pipe, interstage cooler and the inflation inlet of being controlled by valve also link to each other with the firing chamber.
Because internal-combustion engine of the present invention has carried out middle cooling to compression process, compression process can more carried out under the advantageous conditions, reduced the consumption of compression work, also reduced the temperature and pressure of whole circulation, provide bigger temperature difference for regenerator reclaims exhaust gas heat simultaneously, allowed regenerator can from exhaust, reclaim more heat.This internal-combustion engine produces pressurized air because of the employing cylinder of calming the anger, though its relative compression ratio can be very not high, but in the work done process, the gas distribution piston of variable displacement firing chamber can go into most work done gas pressures to go the propulsion power piston operation in the master cylinders, remain in clearance volume combustion gas quantity seldom.Because these characteristics, internal-combustion engine of the present invention basis efficient (cold-peace backheat in not carrying out) can not be lower than existing high compression ratio diesel engine, and cold-peace heat recovery process in carrying out again on this efficient, will make its efficient reach high state.In the present invention, also utilize cam and hydraulic pressure installation etc. to carry out ACTIVE CONTROL, so that air-flow suffered resistance minimum during through valve also can adapt to running up of internal-combustion engine simultaneously to the intake valve and the gas outlet valve of the cylinder of calming the anger.
Concrete structure of the present invention is provided by following each embodiment and accompanying drawing.
Fig. 1. the general structure sectional view of cold in of the present invention, regenerative two-stroke internal combustion engine.
Fig. 2. internal combustion engine procedure chart of the present invention, wherein 1. intake process; 2. through intercooled compression discharging process; 3. allow pressurized air charge into the firing chamber; 4. pressurized air is compressed into regenerator and be deflated heating; 5. the pressurized air after the backheat is got back to the firing chamber; 6. pay the process of the ignition in the cylinder firing chamber; 7. master cylinders work done process; 8. master cylinders exhaust process.
Fig. 3. the operating angle areal map of each control valve and exhaust valve.
Fig. 4. the amplification view of paying cylinder and master cylinders of second embodiment of the invention.
Fig. 5. the amplification view of paying cylinder and master cylinders of third embodiment of the invention.
Fig. 6. A-A sectional view among Fig. 5.
Fig. 7. the amplification view of paying cylinder and master cylinders of fourth embodiment of the invention.
Fig. 8. B-B sectional view among Fig. 7.
Fig. 9. the structural drawing of the intake valve of the cylinder of calming the anger and the cam of gas outlet valve and hydraulic control device.
Figure 10. be used for the structure and the system layout that brake energy reclaims the internal-combustion engine of the present invention of function that have of vehicle.
Below in conjunction with accompanying drawing various embodiments of the present invention are elaborated.Entire internal combustion engine structure of the present invention as shown in Figure 1, the master cylinders (1) and the V-shaped arrangement of cylinder (28) of calming the anger are installed on the crankcase (19).Power piston in the master cylinders (13) links to each other with bent axle (20) through connecting rod (18) (33) respectively with displacer (30) in the cylinder of calming the anger.The variable displacement firing chamber (59) of matching with master cylinders is to constitute by paying cylinder (57) and gas distribution piston (68), and the vent through being controlled by valve (5) is connected with master cylinders (1).Here, pay cylinder (57) and make one, constitute a kind of than the compact structure form with the cylinder cap (3) of master cylinders.The gas distribution piston of paying in the cylinder links to each other with a pair bent axle (72) through connecting rod (74), pays bent axle and is driven (drawing among the figure) by bent axle (20) through transmission device.Carry out in work done and the exhaust process at power piston, allow pressurized air charge into four course of action such as paying cylinder because gas distribution piston will be finished, the rotating speed of therefore paying bent axle (72) is higher than bent axle (20), and both rotating ratios are 2: 1.
In the described embodiment of Fig. 1, the vent (5) between firing chamber (59) and the master cylinders (1) adopts rotary valve (83) control, and this is contained in the valve opening (87), and its valve body is provided with clear opening (85).For preventing gas leakage, diaphragm seal (88) is housed on valve opening inwall (or valve body).Rotary valve (83) is contained in the valve opening (87) by bearing, is also driven (drawing among the figure) by bent axle (20) through driving gear etc.
For reclaiming exhaust gas heat, firing chamber (59) outlet of the ventilation through being controlled by valve (80) respectively link to each other with two interfaces of the regenerator that places gas exhaust piping (12) (78) with ventilation import (75).In being connected of firing chamber (59) and the cylinder of calming the anger, the cylinder of calming the anger (28) is that air outlet (52), outlet pipe (53), interstage cooler (54) and the inflation inlet of being controlled by valve (55) through being provided with gas outlet valve (50) links to each other with firing chamber (59).What in the present embodiment, the valve of control inflation inlet (55), ventilation outlet (80) and ventilation import (75) adopted is the rotary valve which is provided with clear opening (115) (113) that is contained in the valve opening (117).When (115) the one side gas ports of the clear opening on the rotary valve by arrow (116) direction successively with the valve opening inwall on above-mentioned three gas ports when connecting respectively, the opposite side gas port then is in ventilating hole (61) the aperture scope of the broad of combustion chamber side.On the valve opening inwall, also be provided with diaphragm seal (119), in cooler and regenerator, leak to prevent the work done combustion gas.
In Fig. 1 state, the clear opening (115) of rotary valve (113) is about to turn over ventilation outlet (80), be in the position that to connect with ventilation import (75), gas distribution piston this moment (68) also moves on to upper putting (for the top dead center of difference master cylinders) soon, the protrusion shape (69) of gas distribution piston end face is just reaching in the ventilating hole (61), allow the clearance volume that forms be in minimum state, so that most of pressurized air is all discharged a pair cylinder.In addition, in the layout of regenerator (78), in order to obtain the highest effectiveness of regenerator, reheater tubes group (79) in the gas exhaust piping (12) adopts countercurrent heat exchange method with exhaust, when exhaust is flow through the reheater tubes group by arrow (7) direction, make the pressurized air that flows along arrow (81) direction in the regenerator (78) be deflated heating.The pressurized air that backheat is crossed is being flowed through when being in connecting pipeline (82) in the middle of the outlet pipe (12) and entering ventilation import (75), and last heating is carried out in the exhaust of just having been discharged by master cylinders (1) again.Because of having adopted two exhaust valves (8), after lumping together and communicate, two exhaust outlets (11) constituted outlet pipe (12).For reducing radiation loss, in actual applications, should on the outlet pipe inwall, heat insulation layer be set.
This internal-combustion engine of the present invention is different from existing petrol engine and diesel engine on igniting and fuel adding mode, it needs oil spout and two kinds of systems of igniting.As seen from the figure, the oil sprayer of injection system (67) is contained in the upside of ventilating hole (61), and the spark plug of ignition system (66) is contained in to be paid on the cylinder (57).In the internal combustion engine operation process, oil sprayer sprays into gasoline or similar fuel in the pressurized air that flows to firing chamber (59) of backheat, forms the required fuel mixture body of burning.Because internal-combustion engine of the present invention is without closure, this just requires the fuel concentration that sprays in the pressurized air suitable, easily by spark ignitor.When the control output power, as increasing power, allow oil sprayer shift to an earlier date oil spout in the firing chamber, increase total fuel delivery.As reduce power, but then retarded injection shortens injection time, corresponding minimizing fuel delivery constantly.Since oil sprayer be by the easiest by the oil spout in pressurized air of the concentration of plug ignition, therefore, when power reduction, a small amount of fuel oil that sprays at last also can be lighted work done when the spark plug of flowing through (66).In the internal-combustion engine that only uses diesel oil, also can adopt glow plug to light the fuel oil that is sprayed into, but different with the ordinary diesel oil machine, require glow plug when low-power, will be in the red-hot state of energising.
The working procedure of this internal-combustion engine of the present invention describes each working procedure below in conjunction with procedure chart as shown in Figure 2.
Fig. 2 is 1.. intake process.
Intake process carries out in the cylinder of calming the anger (28), and at this moment displacer (30) is descending, and intake valve (41) is opened, and air is inhaled in the cylinder of calming the anger along arrow (39) direction.Displacer moves on to after bottom dead center, IC Intake Valve Closes, and intake process finishes.
Fig. 2 is 2.. through intercooled compression discharging process.
After the cylinder (28) of calming the anger was full of air, displacer (30) began upwards operation from lower dead center, and inhaled air is compressed.When air was compressed to its pressure greater than the pressure in the interstage cooler (54), formed pressurized air was just washed gas outlet valve (50) open and is entered in the cooler (54).Displacer (30) row is to atdc, and compression discharging process finishes.
Because the air after adopting interstage cooler to compression in compression discharging process cools off, this makes compression discharging process more approach the isothermal compression state, the heat of compression device that is cooled is directed at the external world, allow the corresponding reduction of compression pressure and temperature, reduced the consumption of compression work, for the heat recovery process that will carry out provides very big temperature difference.In the reality, should strengthen the heat dissipation potential of cooler, be controlled between 5 ℃～50 ℃ through cooled pressurized air, it is low more that temperature is fallen, and helps reclaiming more exhaust gas heat more, simultaneously, also helps reducing the radiation loss of internal-combustion engine and suffered heat load.
Fig. 2 is 3.. and allow pressurized air charge into the firing chamber.
When the cylinder of calming the anger was compressed into cooler to pressurized air, power piston (13) in the master cylinders and the gas distribution piston of paying in the cylinder (68) also moved at the same time.Gas distribution piston (68) in paying cylinder (57) moves on to the upper/lower positions process from last position, inflation inlet (55) is opened by rotary valve (113), pressurized air in the cooler (54) inflation inlet through opening in this course enters firing chamber (59), promotion is joined vapour piston (68) and is moved on to upper/lower positions, finishes pressurized air and fills the into working procedure of firing chamber.
Fig. 2 is 4.. and pressurized air is compressed into regenerator be deflated heating.
Join and begin again to move up after vapour piston (68) moves on to upper/lower positions, compress charging into the pressurized air of paying in the cylinder firing chamber (59), when pressurized air is compressed to when identical with the regenerator internal pressure, clear opening on the rotary valve (113) is linked up with the ventilation outlet (80) of leading to regenerator (78), along with moving in gas distribution piston (68) continuation, the pressurized air of paying in the cylinder is pressed into (shown in arrow 77) in the regenerator (78), and then is deflated heating.Join the vapour piston and move on to upper postpone, the ventilation port closing, this process finishes.
After the low temperature pressurized air that charges into regenerator is deflated heating, all corresponding rising of its temperature and pressure, this is fully reclaimed exhaust gas heat.It is many more that exhaust raises compressed-air actuated temperature, and the exhaust gas heat that is reclaimed is also many more.Only using in the internal-combustion engine of spark ignitor mixed gas, should be controlled at the compressed air temperature after the backheat and be no more than 500 ℃, shift to an earlier date spontaneous combustion with the fuel oil that prevents to spray into.
Fig. 2 is 5.. and the pressurized air after the backheat is got back to the firing chamber.
The position begins again when upper/lower positions moves in gas distribution piston (68) arrival, rotary valve (113) is linked up ventilation import (75) and firing chamber (59), filled into firing chamber immediately by the warmed-up pressurized air of regenerator (78), shown in arrow among the figure (64), promote gas distribution piston (68) operation downwards.Enter in the process of firing chamber (59) at pressurized air, oil sprayer (67) also sprays into fuel simultaneously, forms the inflammable gas of good mixing.After gas distribution piston moved on to upper/lower positions, ventilation import (75) was closed, and this process finishes.
Fig. 2 is 6.. pay the ignition process in the cylinder firing chamber.
After paying gas distribution piston (68) in the cylinder firing chamber and moving on to upper/lower positions, charged in the firing chamber good mixing because of backheat temperature and pressure burning mixture of corresponding rising all.Simultaneously, the power piston (13) in master cylinders (1) is not when also moving on to top dead center, and spark plug (66) shifts to an earlier date certain crank angle (such as 5 °～35 °) igniting, allows the inflammable mixture in the firing chamber burn formation High Temperature High Pressure work done combustion gas rapidly.
Fig. 2 is 7.. master cylinders work done process.
When paying cylinder firing chamber formation High Temperature High Pressure work done combustion gas, the good top dead center that arrived of power piston (13) in the master cylinders (1), at this moment the vent between firing chamber and master cylinders (5) is connected by valve (83), the work done combustion gas is in vent enters master cylinders (1) immediately, shown in arrow (17), the descending work done of propulsion power piston (13).
When power piston (13) is pushed down work done from stop, gas distribution piston (68) also faster upwards the position move (because of pair bent axle faster than speed of crankshaft).When power piston (13) moved down near the half way position, gas distribution piston (68) had moved on to the position, and most of work done combustion gas of paying in the cylinder is pressed in the master cylinders (1), and vent (5) is closed by valve (83) then.The combustion gas that is pressed in the master cylinders continues the descending work done of downward propulsion power piston (13), and until moving on to lower dead center, the work done process finishes.
In the work done process that master cylinders carries out, overwhelming majority combustion gas all has been pressed into master cylinders and has been used for promoting the piston work done, the work done combustion gas that remains in blast tube equal clearances volume seldom (is less than last combustion gas in the ordinary diesel oil machine firing chamber), this makes internal-combustion engine of the present invention basic efficient during the cold-peace backheat in not carrying out can not be lower than existing diesel engine, and after middle cooling of process and backheat, its efficient also can increase considerably.In internal-combustion engine of the present invention, strengthen the ability to work of interstage cooler and regenerator, the unhelpful volume that minimizing firing chamber and master cylinders etc. are located etc. all can make efficient further improve.Owing to be not merely recently to raise the efficiency by strengthening compression, so the combustion gas maximum pressure during work done can be very not big yet, and this is to being very important the working life of reducing mechanical load, prolongation internal-combustion engine.
Fig. 2 is 8.. the master cylinders exhaust process.
Power piston (13) in the master cylinders (1) moves on to after lower dead center finishes the work done process, at this moment exhaust valve (8) is opened (will open in advance in the reality), power piston is along with the rotation of bent axle moves to top dead center again, high-temperature gas after the work done in the master cylinders is discharged cylinder, flow to regenerator (78) through outlet pipe (12) along arrow (7) again, low temperature pressurized air in the regenerator is heated, exhaust gas heat is fully reclaimed.Piston (13) arrives atdc, exhaust valve closing, and exhaust process finishes, and will proceed work done process next time subsequently.
More than be described separately to the working procedure of internal-combustion engine of the present invention, in the reality, master cylinders only carries out work done and exhaust process by the work of two-stroke mode.The cylinder of calming the anger carries out air inlet and compression discharging process.And the gas distribution piston of paying in the cylinder will be linked up or close with interstage cooler, regenerator and master cylinders respectively by valve in the two-stroke of master cylinders, finishes to allow pressurized air charge into four course of action such as paying cylinder, thereby realizes the whole cyclic process of internal-combustion engine.
Above-mentioned is the concrete working procedure of internal-combustion engine of the present invention, go summarize to divide above each operating condition from the thermal cycle angle, cold in this, regenerative two-stroke internal combustion engine mainly comprises air inlet, compress discharge, middle cooling, backheat, burning work done and six processes of exhaust.
Fig. 3 is the inflation inlet of internal-combustion engine of the present invention, the operating angle division figure of ventilation import and export, vent and exhaust valve.The outer ring is the operating angle division of master cylinders among the figure, and inner ring is that the operating angle of paying the cylinder firing chamber is divided.As seen from the figure, the gas distribution piston (68) of paying cylinder shifts to an earlier date 5 °～35 ° crank angle than the power piston in the master cylinders that is in top dead center (13) and is on the upper/lower positions, shown in the e section.After gas distribution piston (68) moves on to upper/lower positions, pay the inflammable gas that the cylinder firing chamber has charged into the formation fuel mixture of being crossed by backheat, and in e is excellent, spark ignitor the fuel mixture that charges into, form the work done combustion gas.After the ignition process is finished, move on to from upper/lower positions first process of position at gas distribution piston (68), pay vent (5) between cylinder firing chamber and master cylinders by valve opening, corresponding power piston is promoted to moving down near the half way position, shown in f section among the figure by combustion gas from top dead center.When vent is opened, owing to pay cylinder and master cylinders is connected,, be pooled to the outer ring of representing master cylinders again so the f section is initial from inside and outside circle two.Leave in second process that the position turns back to upper/lower positions at gas distribution piston (68), inflation inlet (55) is by valve opening (shown in a section among the figure) around here, finish the work done process and continued to promote to shift near lower dead center by combustion gas, shown in the g segment limit near the power piston (13) of half way position.The O1 segment table shows unlatching immediately of inflation inlet when gas distribution piston leaves the position (55) among the figure, and the combustion gas that remains in paying cylinder firing chamber clearance volume also can correspondingly be expanded, and promotes the gas distribution piston work done.
Power piston in the above-mentioned master cylinders (13) shifts near lower dead center finish the work done process after, exhaust valve (8) is opened in advance, shown in h section among the figure, simultaneously, at gas distribution piston (68) when moving on to upper/lower positions, ventilation outlet (80) after the b section also by valve opening, shown in the c section.Ventilation outlet is opened through the b section again, be because gas distribution piston in this angle will fill the pressurized air of into paying cylinder be compressed to identical with pressure in the regenerator till.Gas distribution piston (68) leaves upper/lower positions get back to the position again and finish the 3rd process after, ventilation outlet (80) is by valve closing, corresponding power piston (13) has left the up exhaust of lower dead center and has moved on to position near half way.Gas distribution piston (68) turns back to upper/lower positions again and finishes the 4th process from last position, ventilation import (75) is by valve opening, shown in d section among the figure, outwards the power piston (13) of exhaust also moves on to the position near top dead center, at this moment exhaust valve (8) in advance several angle close, the h segment limit is ended, allowed exhaust process finish.The O2 section is the angular interval between ventilation is imported and exported among the figure, when gaseous fuels such as use liquid gas, into pays cylinder (57) for gaseous fuel can be filled with lower pressure when gas distribution piston is descending, also will strengthen O
2Angle, allow the corresponding again postponement of ventilation import (75) open.After the i segment table shows that exhaust process finishes among the figure, exhaust valve cuts out in advance, and the waste gas of not discharging master cylinders is compressed in the formed clearance volume, so that when paying the connection of cylinder firing chamber and master cylinders, allow the interior pressure of master cylinders be unlikely too low, to help subsequent work done process.
More than the first embodiment of the present invention is described in detail, the second embodiment of the present invention has only provided the concrete structure of pair cylinder (57) and master cylinders (1) as shown in Figure 4 among the figure, the other parts and first embodiment are basic identical.In the present embodiment, the vent (5) between firing chamber (59) and master cylinders (1) adopts lift valve (89) control, and this valve comprises valve head (90) and valve rod (92).The valve head (90) that is contained in the valve opening (99) can make vent (5) close, can be opened by cam (98) pulling again through pull bar (96) and rocking arm (97) under spring (94) effect.What state shown in the figure carried out is the work done process, and valve head (90) is just opened by cam control through driving component, and the gas distribution piston (68) that the work done combustion gas is paid in the cylinder (57) along arrow (17) direction is compressed into master cylinders (1).Valve head be pulled open certain distance after, the block seat (100) on the valve opening (99) can stop the continuation that valve head done the time spent by gaseous-pressure and move.For preventing gas leakage, be provided with seal ring (91) at valve head.In addition, for can the sealing load bigger pressurized air and the work done combustion gas of work done medium pressure midway, set spring (94) elastic force is bigger.The lift valve advantage of this structure is that its valve head has just tied up the volume of a part of vent (5) after closing, and unhelpful volume is further dwindled.Its sealing is better than the rotary valve (83) among first embodiment simultaneously.
Oil sprayer in the present embodiment (67) has been contained in ventilation import (75) and has located, and spark plug (66) has been contained on the sidewall of ventilating hole (61).To the control of inflation inlet (55), ventilation outlet (80) and ventilation import (75), employing be with first enforcement in identical rotary valve (113).
What Fig. 5 described is the master cylinders (1) of third embodiment of the invention and the structural drawing of paying cylinder (57).In this embodiment, firing chamber (59) have adopted another kind of different lift valve (101) to control with vent (5) between master cylinders (1).This valve can be promoted to open by cam (111), and spring (108) effect is closed it.When the indoor pressurized air of sealing combustion, backed down by pressed gas for preventing valve, on valve rod (103), be provided with pressure balance plug (104).Because the diameter of pressure balance plug equals or be slightly larger than the diameter of valve head (102), pressurized air is all exerted pressure to pressure balance plug and valve head, makes that both are stressed to be cancelled, and allows valve head lean on spring force still can seal up pressurized air.Seal ring (105) is housed, to prevent that pressurized gas are to external leakage on pressure balance plug (104).The lift valve (89) of the control valve of this structure during suffered heat load is implemented than second in the work done process is bigger.
In the present embodiment, to the control of inflation inlet and ventilation import and export, also adopted and the identical structural type of lift valve (101), just size is smaller.As seen from Figure 5, inflation inlet (55) and ventilation are imported and exported (75) (80) and are controlled by lift valve separately respectively, and each lift valve is promoted to open by corresponding cam, under spring action it is closed again.Also be provided with pressure balance plug (133) on the valve rod (132) of this valve, its diameter equals or is slightly larger than the diameter of valve head (131).In Fig. 5, inflation inlet (55) is by lift valve (141) and cam (142) control, and ventilation import (75) is by lift valve (143) and cam (144) control, and ventilation outlet (80) is by lift valve (145) and cam (146) control (referring to Fig. 6).Ventilation outlet (80) is this moment just opened by lift valve (145) control, and the pressurized air of paying in the cylinder (57) also is pressed into regenerator (78) by gas distribution piston (68) along arrow (81) direction.The mounting point of oil sprayer (67) and spark plug (66) as shown in Figure 6, they are to install from the prism of paying the cylinder firing chamber.Oil sprayer (67) puts in the air vent of ventilation import (75), and spark plug (66) is contained on the sidewall of firing chamber (59).
The fourth embodiment of the present invention has been described the structure and the arrangement states of the rotary valve (120) between pair cylinder (57) and master cylinders (1) as shown in Figure 7 and Figure 8 among the figure.In this embodiment, to inflation inlet (55) and ventilation outlet (80) (shown in dotted line), ventilation import (75) and vent (5), employing be to control respectively with clear opening (122) (shown in the dotted line) and (123) of two several angles that stagger on it by the interior long rotary valve (120) of valve opening (127).When rotary valve (120) press arrow (124) direction successively with a side gas port of two clear openings (122) (123) on it successively when separately corresponding two gas ports are communicated with, the opposite side gas port then is in ventilating hole (62) or (63) aperture scope interior (referring to Fig. 8) of the broad of top side, firing chamber (59).Two clear openings of rotary valve (120) corresponding angle that not only staggers in the axial direction also at intervals, and allows pairing each gas port also separate identical distance, shown in Fig. 8 B-B section, leaks to opposite side to prevent pressed gas.Because present embodiment all has been located at two clear openings (122) (123) on the valve body, structurally the scheme than first embodiment among Fig. 1 is more favourable for this.To the layout of oil sprayer and spark plug, oil sprayer (67) is contained in the upside of ventilating hole (63), and spark plug (66) is contained in the below of paying cylinder (57), and is right with declivity on the oil sprayer, is in the position of lighting fuel mixture easily.The layout of exhaust valve as shown in Figure 8, master cylinders (1) has adopted two exhaust valves (8), the connecting pipeline (82) of regenerator (78) between two exhaust valves with the ventilation import (75) link to each other.
In present embodiment shown in Figure 7, rotary valve (120) is in the state that the clear opening (123) that allows on it is connected with ventilation import (75), the gas distribution piston of paying in the cylinder (68) down moves along arrow (71) direction, oil sprayer (67) to (shown in the arrow 64) that enter the firing chamber through backheat pressurized air in spray into fuel oil.Simultaneously, the also corresponding unlatching of exhaust valve (8) of master cylinders (1) allows up power piston (13) that waste gas is discharged along arrow (7) the direction regenerator (78) of flowing through.
In the various embodiments described above, inflation inlet, ventilation import and export have been adopted different valve control type with ventilating hole, in the reality, also can be according to the needs of topology layout, sealing and service performance, different valves is reconfigured layout, to obtain better design proposal.
Internal-combustion engine of the present invention is to utilize the cylinder of calming the anger to provide work done required compressed-air actuated, though existing piston formula gas compressor technology is fairly perfect, but for further improving the higher rotation speed of calm the anger efficient and adaptation internal-combustion engine, the present invention has adopted ACTIVE CONTROL modes such as cam and hydraulic pressure installation to the intake valve and the gas outlet valve of the cylinder of calming the anger.Fig. 9 has provided the detailed structure of the control mechanism of intake valve (41) and gas outlet valve (50).
As seen from the figure, gas outlet valve (50) is a kind of one-way valve, and it is withstood by the head of push rod (148), is sealed on the seat valve of outlet pipe (53), and this valve is sleeved on the push rod head slidably, also can be contained on the sliding sleeve of establishing in addition (not draw among the figure).The piston (149) that push rod (148) passes in cylinder cap (155) and the cylinder hole (156) is connected as a single entity, and outer end (150) put in the Seal cage (153) of gland (152), and the intercommunicating pore in it (151) is communicated with outlet pipe (53).Spring (154) acts on push rod (148), gas outlet valve (50) is withstood be in closed condition.Also can only establish push rod (148) and piston (149) in the reality, but, the corresponding elastic force that adds big spring (154) owing to lose pressure balance.When calming the anger cylinder work, when displacer (30) begins inhaled air compressed, can be when the controlled cylinder of oil circuit (157) (159) control that links to each other with cylinder hole (156) comes oil piston (149) jack-up, make the head of push rod (148) leave gas outlet valve (50), allow pressurized air leave air valve, suffered resistance minimum when making pressurized air flow through gas outlet valve with trying hard to recommend of minimum.
Control cylinder (159) is located at by last position, be communicated with by the cylinder hole (156) of oil circuit (157) with the control gas outlet valve, for making the easier cylinder of calming the anger that is discharged from of pressurized air, the quantity of gas outlet valve is usually between 2～8, for this reason, the oil circuit that links to each other with control cylinder (159) is also wanted corresponding and is divided into several strands, receives on the cylinder hole (156) that is in diverse location again.Be provided with oil-return groove (160) and drain pan (161) on the inwall of control cylinder (159), oil-return groove (160) also links to each other with oil circuit (157) through one-way valve (158).The plunger (162) that is contained in the control cylinder is provided with fuel outlet (163), and plunger is promoted to press oil by cam (165), is subjected to spring (164) effect return.Be divided into different control sections on cam (165) as required, as seen from the figure, the ab section on the cam can press down certain distance to plunger (162), and at this moment, the displacer in the corresponding cylinder of calming the anger moves the pressurized air that compression has sucked.After plunger was pressed down, the liquid oil of being discharged just piston (149) jack-up in cylinder hole (156), made push rod (148) head leave gas outlet valve (50).Though this moment, push rod left gas outlet valve, compressed-air actuated pressure effect still makes it closed tightly.Bc section on the cam makes plunger (162) motionless substantially, and corresponding push rod (148) also is parked in the certain position place of leaving gas outlet valve.When the displacer in the cylinder of calming the anger was compressed to inhaled air above the pressure in the interstage cooler, pressurized air just can be pushed the not gas outlet valve of drawn stem effect open, allows displacer that pressurized air is pressed into interstage cooler.Along with being rotated further of cam, the cd section continues depresses plunger (162) again, in preceding half segment distance of its folding process, fuel outlet on the plunger (163) just with the cylinder hole on drain pan (161) link up, at this moment displacer also moves on to top dead center, finish compression discharging process, and the hydraulic oil that promote cylinder hole inner carrier (149) this moment leaks immediately because of the unlatching of fuel outlet (163), allow piston (149) and push rod (148) rapid return under spring (154) effect, head on gas outlet valve (50) air outlet (52) are closed rapidly, prevent that the pressurized air that is pressed into cooler from refluxing to the cylinder of calming the anger.The de section makes plunger (162) motionless substantially, and the fuel outlet on it (163) is still linked up with drain pan (161).When the ef of cam section turns over plunger (162), the plunger reposition, the hydraulic oil in the oil-return groove replenishes into plunger cavity of resorption through one-way valve (158).
The control of intake valve is wanted simple, but also be different from the intake valve of ordinary internal combustion engine.The control mode of this intake valve is that the spring seat (43) on the push rod of intake valve (41) (42) is contained in the sliding sleeve (47), and can not be withdrawed from by the back-up ring on it (48) restriction, be provided with middle springs (49) between the two, sliding sleeve (47) is also made intake valve (41) be in closed condition by spring (44) effect.When cam (45) pressed sliding sleeve (47), the back-up ring on it (48) can leave the spring seat (43) on the push rod (42).The effect of set middle springs (49) is that displacer (30) row in the cylinder (28) of calming the anger is compressed into middle but device to pressurized air to top dead center, carry out when air-breathing will moving down, cam (45) has at this moment shifted to an earlier date several angle and has pressed down sliding sleeve (47), because the small amount of compression air of the displacer and the interior existence of clearance volume between cylinder of calming the anger is stoping the unlatching of intake valve, the sliding sleeve that moves down is just the corresponding compression of middle springs (49), certainly, the displacer (30) of operation is subjected to the gas pressure effect also to reclaim the sub-fraction compression work downwards.Along with displacer (30) continue move down, when the elastic force of middle spring (49) greater than the gas in the cylinder of calming the anger during to the active force of intake valve, middle springs (49) just makes intake valve be opened to rapidly at utmost, allows displacer that air is sucked the cylinder of calming the anger.After intake process finished, cam (45) turned over sliding sleeve (47), spring (44) by sliding sleeve by IC Intake Valve Closes.
When this internal-combustion engine of the present invention is used for vehicle, during in particular for internal combustion locomotive and bus, be easy to it is made into to recycle the power plant of brake energy.What Figure 10 described is exactly to have structure and the system layout scheme that brake energy is recycled the internal-combustion engine of the present invention of function.In this arrangement, the bent axle (20) of master cylinders (1) is through removing to drive the gear (24) on the transmission shaft (25) again behind the main clutch (23), and then drives the bent axle of calming the anger (34) of the cylinder of calming the anger through driven gear (36) and the clutch of calming the anger (35).For the improvement of compressed-air system, the connecting pipeline (167) that the outlet pipe (53) of the cylinder of calming the anger (28) is established by other is communicated with gas receiver (170) behind one-way valve (168) and stop valve (169) respectively again.
When internal-combustion engine ran well, main clutch (23) all was in jointing state with the clutch (35) of calming the anger, and the power piston in the master cylinders goes to drive the displacer running of calming the anger in the cylinder through gear and two clutches.When brake, allow main clutch (23) separate, and the bent axle (20) of master cylinders is stopped operating, the vehicle of advancing by inertia just drives gear-box axle (25) by wheel etc., and continue to allow cylinder (28) work of calming the anger through gear (24), driven gear (36) and the clutch of calming the anger (35), the pressurized air that is produced fills into gas receiver (170) through interstage cooler (54) and one-way valve (168), also impels vehicle to reduce travelling speed simultaneously.The brake energy that reclaims is many more, and the gas pressure in the gas receiver is also high more, and this process is until vehicle just end out of service.When starting during vehicle, allow the clutch (35) of calming the anger separate, main clutch (23) engages, and opens stop valve (169) simultaneously, and just powered vehicle moves ahead again to provide pneumatically operated master cylinders (1) by gas receiver.At this moment, because of the cylinder of calming the anger (28) compression work that do not consume out of service, help vehicle and quicken faster to advance.After the compressed air pressure in the gas receiver (170) drops to normal value, close stop valve (169), allow the clutch (35) of calming the anger engage, then provide pressurized air by the cylinder of calming the anger (28) for master cylinders.
In the reality, the air cylinder of brake energy recycling system (170) also has an effect, and the pressurized air of required certain pressure can be provided when starting exactly immediately.Because of the shutdown through the long period, the pressurized air in interstage cooler and the regenerator is certain to leak away.
More than describe general structure, the work cycle process of cold in of the present invention, regenerative two-stroke internal combustion engine in detail, the operating angle of each valve is divided and different specific embodiments.In actual applications,, also can suitably strengthen the swept volume of master cylinders, its expansion ratio is increased, allow the more abundant expansion of work done combustion gas, can also adopt turbocharging technology, output power is further improved for helping the raising of efficient.When only using plug ignition, can not carry out thermal insulation though tackle the cylinder firing chamber, lighted by red-hot wall to prevent fuel mixture, but still can cover with thermoinsulation material to the power piston end face of master cylinders and cylinder cap bottom surface etc., so that can further reduce radiation loss, help regenerator and reclaim more exhaust gas heat.Cold in this, regenerative two-stroke internal combustion engine is fit to make bigger power, and it is fully feasible it being used for aspects such as boats and ships, power station, power source, internal combustion locomotive and vehicle.
Claims (13)
1. internal-combustion engine, cold particularly, regenerative two-stroke internal combustion engine, it comprises the master cylinders (1) that exhaust valve (8) are housed and intake valve (41) is housed and the cylinder of calming the anger (28) of gas outlet valve (50), displacer (30) in power piston in the master cylinders (13) and the cylinder of calming the anger links to each other with bent axle (20) in the crankcase (19) through connecting rod respectively, feature of the present invention is: be provided with the variable displacement firing chamber (59) that is made of gas distribution piston (68) and pair cylinder (57) on the cylinder cap (3) of master cylinders, its vent (5) through being controlled by valve links to each other with master cylinders (1), the gas distribution piston of paying in the cylinder (57) (68) links to each other with secondary crankshaft (72) through connecting rod (74), secondary crankshaft (72) is 2: 1 with the rotating ratio of bent axle (20), in addition firing chamber (59) also respectively the ventilation through being controlled by valve import and export (75) (80) and link to each other with two interfaces of the regenerator that places gas exhaust piping (12) (78), the air outlet (52) of cylinder (28) of calming the anger through being provided with gas outlet valve (50), outlet pipe (53), interstage cooler (54) also links to each other with firing chamber (59) with the inflation inlet of being controlled by valve (55).
2. internal-combustion engine according to claim 1, it is characterized in that: the gas distribution piston (68) of paying cylinder shifts to an earlier date 5 °～35 ° crank angle than the power piston (13) of the master cylinders that is in top dead center and is on the upper/lower positions, move on to from upper/lower positions first process of position at gas distribution piston (68), pay vent (5) between cylinder firing chamber and master cylinders by valve opening, corresponding power piston from top dead center by the combustion gas pushing to the position that moves down near half way; Leave in second process that the position turns back to upper/lower positions at gas distribution piston (68), inflation inlet (55) is by valve opening around here, and continued to promote near lower dead center near the power piston of half way position; When gas distribution piston (68) arrives upper/lower positions, ventilation outlet (80) is subsequently by valve opening, also open in advance at the approaching exhaust valve (8) after bottom dead center of the power piston of master cylinders, gas distribution piston leaves upper/lower positions get back to the position again and finish the 3rd process after, ventilation outlet (80) is by valve closing, and corresponding power piston (13) has left the position that moves on on the lower dead center near half way; Gas distribution piston (68) turns back to upper/lower positions again and finishes the 4th process from last position, ventilation import (75) is by valve opening, and outwards the power piston (13) of exhaust also moves on to the position near top dead center, at this moment exhaust valve (8) in advance several angle close.
3. internal-combustion engine according to claim 2 is characterized in that: the vent between firing chamber and master cylinders (5) is controlled with rotary valve (83), and this valve is contained in the valve opening (87), and its valve body is provided with clear opening (85).
4. internal-combustion engine according to claim 2, it is characterized in that: the vent between firing chamber and master cylinders (5) is controlled with lift valve (89), this valve comprises valve head (90) and valve rod (92), the valve head (90) that is contained in the valve opening (99) can make vent close under spring action, can be opened by the cam pulling again through pull bar (96) and rocking arm (97), when valve was pulled the unlatching certain distance, the block seat on the valve opening (100) can stop moving of valve head.
5. internal-combustion engine according to claim 2, it is characterized in that: the vent between firing chamber and master cylinders (5) is controlled with lift valve (101), this valve is promoted to open by cam (111), under spring action, it is closed, be provided with pressure balance plug (104) on the valve rod (103) of this valve, its diameter equals or is slightly larger than the diameter of valve head (102).
6. according to claim 3,4 or 5 described internal-combustion engines, it is characterized in that: inflation inlet (55), ventilation outlet (80) and ventilation import (75) are by the control of the rotary valve which is provided with clear opening (115) (114) in the valve opening (117), when clear opening (115) the one side gas ports of rotary valve successively with the valve opening inwall on above-mentioned three gas ports when connecting respectively, the opposite side gas port then is in ventilating hole (61) the aperture scope of the broad of combustion chamber side.
7. according to claim 3,4 or 5 described internal-combustion engines, it is characterized in that: inflation inlet (55) and ventilation are imported and exported (75) (80) and are controlled by lift valve separately respectively, each lift valve can be promoted to open by corresponding cam, under spring action, it is closed again, be provided with pressure balance plug (133) on the valve rod (132) of this valve, its diameter equals or is slightly larger than the diameter of valve head (131).
8. internal-combustion engine according to claim 2, it is characterized in that: inflation inlet (55) and ventilation outlet (80), ventilation import (75) and vent (5) are controlled respectively with the clear opening (122) (123) of two several angles that stagger on it by the long rotary valve (120) in the valve opening (127), when rotary valve (120) successively with a side gas port of two clear openings (122) (123) on it successively when separately corresponding gas port is communicated with, the opposite side gas port then is in the ventilating hole (62) or (63) aperture scope of broad of top side, firing chamber (59), two clear openings (122) (123) on the rotary valve are separated by a distance in the axial direction, and pairing each gas port also separates identical distance.
9. internal-combustion engine according to claim 2, it is characterized in that: the gas outlet valve of the cylinder of calming the anger (50) is a kind of one-way valve, head by push rod (148) withstands, this valve be sleeved on the push rod head slidably or the sliding sleeve established in addition on, the piston (149) that push rod (148) passes in cylinder cap (155) and the cylinder hole (156) is connected as a single entity, stretch in the Seal cage of gland (152) (153) the push rod outer end, and the intercommunicating pore in it (151) is communicated with outlet pipe (53), spring (154) effect push rod (148) makes gas outlet valve (50) be in closed condition, the oil circuit (157) that is communicated with cylinder hole (156) can make piston (149) jack-up push rod (148) leave gas outlet valve (50) when coming oil.
10. internal-combustion engine according to claim 9, it is characterized in that: the oil circuit (157) that links to each other with cylinder hole (156) is connected on the control cylinder (159), on the inwall of control cylinder, be provided with oil-return groove (160) and drain pan (161), oil-return groove (160) links to each other with oil circuit (157) through one-way valve (158), be provided with fuel outlet (163) on the plunger (162) in control cylinder (159), plunger is promoted to press oil by cam (165), be subjected to spring (164) effect return, a b section on the cam (165) can be depressed distance to plunger, the bc section allows plunger, and it is motionless, the cd section continues depresses plunger, on preceding half fragment position of folding process, fuel outlet on the plunger (163) is just linked up with the drain pan (161) of control cylinder, and the de section makes plunger motionless substantially, and the ef section allows plunger return.
11. internal-combustion engine according to claim 2, it is characterized in that: the spring seat (43) of the intake valve of the cylinder of calming the anger (41) is contained in the sliding sleeve (47), and can not be withdrawed from by the back-up ring on it (48) restriction, be provided with middle springs (49) between the two, sliding sleeve (47) is also made intake valve be in closed condition by spring (44) effect, when cam (45) pressed sliding sleeve (47), the back-up ring on it (48) can leave the spring seat (43) on the push rod (42).
12. internal-combustion engine according to claim 2, it is characterized in that: the bent axle of master cylinders (20) is through removing to drive the gear (24) on the transmission shaft (25) behind the main clutch (23), drives the bent axle of calming the anger (34) of the cylinder of calming the anger again through driven gear (36) and the clutch of calming the anger (35).
13. internal-combustion engine according to claim 12 is characterized in that: the outlet pipe (53) of the cylinder of calming the anger (28) is communicated with gas receiver (170) behind one-way valve (168) and stop valve (169) respectively by connecting pipeline (167).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100059 CN1302947A (en) | 2000-01-03 | 2000-01-03 | Intercooled regenerative two-stroke IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100059 CN1302947A (en) | 2000-01-03 | 2000-01-03 | Intercooled regenerative two-stroke IC engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1302947A true CN1302947A (en) | 2001-07-11 |
Family
ID=4575202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00100059 Pending CN1302947A (en) | 2000-01-03 | 2000-01-03 | Intercooled regenerative two-stroke IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302947A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004009977A1 (en) * | 2002-07-18 | 2004-01-29 | Peizhou Han | Intercooling and heat-regenerating two-stroke engine |
| CN100360772C (en) * | 2002-07-18 | 2008-01-09 | 韩培洲 | Medium cold, regenerative two-stroke internal combustion engine |
| WO2008116392A1 (en) * | 2007-03-26 | 2008-10-02 | Peizhou Han | An intercooled constant-pressure heat-absorbing heat engine |
| WO2021042644A1 (en) * | 2019-09-04 | 2021-03-11 | 韩培洲 | Variable intermediate cooling-type thermal-insulation internal combustion engine |
-
2000
- 2000-01-03 CN CN 00100059 patent/CN1302947A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004009977A1 (en) * | 2002-07-18 | 2004-01-29 | Peizhou Han | Intercooling and heat-regenerating two-stroke engine |
| CN100360772C (en) * | 2002-07-18 | 2008-01-09 | 韩培洲 | Medium cold, regenerative two-stroke internal combustion engine |
| WO2008116392A1 (en) * | 2007-03-26 | 2008-10-02 | Peizhou Han | An intercooled constant-pressure heat-absorbing heat engine |
| WO2021042644A1 (en) * | 2019-09-04 | 2021-03-11 | 韩培洲 | Variable intermediate cooling-type thermal-insulation internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102434271B (en) | Double-stroke reciprocating piston type fuel and vapor engine | |
| CN102072013B (en) | New internal combustion engine design | |
| CN101779016A (en) | Operation of internal combustion engine method and internal-combustion engine | |
| CN100360773C (en) | Superhigh boosting double-circulation variable discharge I.C. engine | |
| CN101135266A (en) | Hybrid power engine | |
| US7201156B1 (en) | Thermal transfer internal combustion engine | |
| CN1158940A (en) | Circulating operation process of internal combustion engine and its embodiment | |
| CN102011640A (en) | Primary-cylinder four-stroke intercooled regenerative internal-combustion engine | |
| US8091521B2 (en) | Self-supercharging engine with freewheeling mechanism | |
| CN1302947A (en) | Intercooled regenerative two-stroke IC engine | |
| TWM614077U (en) | Internal combustion engine booster system | |
| CN104088719A (en) | Efficient thermal energy power equipment and working method thereof | |
| CN101333962A (en) | Rotary piston engine | |
| CN100464063C (en) | Energy accumulating engine | |
| CN100360772C (en) | Medium cold, regenerative two-stroke internal combustion engine | |
| WO2008055329A1 (en) | Internal-combustion engine and the vehicle containing such engine | |
| JPS59113239A (en) | Double expansion type internal-combustion engine | |
| CN2525260Y (en) | IC engine capable of secondary combustion | |
| CN215761938U (en) | Combined engine | |
| CN2473341Y (en) | Gasoline and diesel two purpose double action four stroke IC engine | |
| CN105715387B (en) | CNG engine multi-cylinder self-charging system and self-charging method thereof | |
| RU2231658C2 (en) | Method of operation and design of two-stroke internal combustion engine | |
| CN104791086B (en) | Dual rotor internal combustion engine | |
| CN1091496A (en) | Steam recycle type internal-combustion engine with revolving wheel piston | |
| CN100445531C (en) | Double-piston hydraulic engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |