CN101787926B - Cam mechanism inside internal combustion engine with piston doing circular motion - Google Patents

Abstract

The invention relates to an internal combustion engine, a gasoline engine and a natural gas engine, in particular to a cam mechanism of an internal combustion engine with piston doing circular motion. In the prior art, internal combustion engines with piston doing linear motion have defects of small working stroke of pistons and energy waste, and traditional rotator internal combustion engines consume part of power to push rotational moving structures of rotators, which causes energy waste. The invention aims to provide the cam mechanism inside the internal combustion engine with piston doing circular motion. The cam mechanism comprises a timing gear member and a camshaft member, wherein the timing gear member is formed through fixing a timing gear and a conical timing gear on a timing gear shaft, and a shell is formed through connecting an outer cylinder shell and an outer shell of the internal combustion engine. The invention changes the linear motion of pistons into the curvilinear motion of pistons in the traditional internal combustion engines with piston doing linear motion, thereby increasing the working stroke, increasing the working efficiency, eliminating the energy waste, and thoroughly solving problems in the prior art.

Description

Cam mechanism in circularly moving piston internal combustion engine

One, technical field

The present invention relates to internal-combustion engine, petrol engine, natural gas engine, refer in particular to the cam mechanism in circularly moving piston internal combustion engine.

Two, technical background

In the prior art, comparatively ripe reciprocating motion of the pistons formula internal-combustion engine and rotary internal combustion engine generally uses, its available engine exists birth defects: 1, the piston of the existing campaign-styled internal-combustion engine of piston linear is up and down linear reciprocating motion, the working stroke of piston is little, the energy that expanding gas produces inabundant (acting) utilizes and just is discharged from, and causes waste.The thrust that the connecting rod of the formula of piston up and down straight reciprocating motion simultaneously internal-combustion engine and crank do not produce expanding gas makes accurately complete the passing of this thrust after passing to piston, wasted energy.Cause the energy unnecessary consumption during piston up and down straight line moving type internal-combustion engine compressed mixed gas for internal-combustion engine.Have again piston up and down straight reciprocating motion formula internal-combustion engine to convert in the process of mechanical energy at the chemical energy with fuel, because of pressurized gas meaningless wasting energy.2, existing rotary internal combustion engine acting be relatively large by combustion chamber volume, an end that strength is relatively strong is defeated the end that combustion chamber volume is relatively little, strength is relatively weak and the directed bonding force that produces comes drive rotor to do the directional-rotation motion, in other words: output work=hold greatly merit-small end merit, this consumption part merit come the drive rotor structure that rotatablely moves to cause the waste of acting energy.

A kind of " using the rotary engine of the slideway of the fluctuating that is driven by paired reciprocating piston " disclosed on November 12nd, 1 in State Intellectual Property Office, structure is that it has the two reciprocating pistons of cover, the reciprocal output of described piston is connected with the slideway of fluctuating, this slideway changes into to-and-fro motion and rotatablely moves, the casing of this petrol engine has the center of hollow, does not have axle to pass the center and extends.

Provide dual rotation output in response to the to-and-fro motion of piston, the rotation output cylinder block on the top of one of them rotation output by being positioned at casing provides, and another rotation output provides by the rotation output cylinder block that is positioned at the casing bottom.Its deficiency is complex structure, the compressed mixed gas consumed energy, and mechanical efficiency is lower etc.

Three, summary of the invention

The present invention and design are that piston with internal-combustion engine is placed on does work in a planar circumferential, and purpose is the cam mechanism in a kind of circularly moving piston internal combustion engine of development.Breakthrough is with the traditional mentality of designing of secondary piston up and down straight reciprocating motion formula internal-combustion engine, overall invention thinking and design by the cam mechanism in circularly moving piston internal combustion engine change and solve the problem that prior art exists, and overall invention thinking and the design of the cam mechanism in circularly moving piston internal combustion engine comprise: 1, the integrally-built circular periphery motion of the cam mechanism in circularly moving piston internal combustion engine invention thinking and design; Annular invention thinking and the design of 2, the cam mechanism firing chamber in circularly moving piston internal combustion engine---C type cylinder barrel; 3, the corresponding piston of the cam mechanism in circularly moving piston internal combustion engine is around invention thinking and the design of circular movement action; 4, invention thinking and the design of the central shaft of the cam mechanism in circularly moving piston internal combustion engine; 5, invention thinking and the design of the activity sealing gland piece of the cam mechanism in circularly moving piston internal combustion engine.

The technical solution used in the present invention is as follows: the cam mechanism in described circularly moving piston internal combustion engine, it is characterized in that: cam mechanism is comprised of timing gear shaft assembly and cam assembly, and wherein the timing gear shaft assembly is by being fixed with timing gear on the timing gear axle and tapered timing gear forms.Cam assembly be by on camshaft fixedly control activity sealing gland piece recessed take turns, tapered timing gear and control the cam of air inlet, igniting.

The technical solution used in the present invention also comprises:

Cam mechanism in described circularly moving piston internal combustion engine, it is characterized in that: two cam mechanisms of symmetrical same structure vertically, be fixed on uniformly respectively on the circumference of body fuselage fixedly timing gear axle, OHC and timing gear axle, lower camshaft respectively above body fuselage and on following Zhou Yuan.Illustrate with a cam mechanism: the timing gear of stationary cam axle engagement timing belt on the timing gear axle, the fixing tapered timing gear of the timing gear axle the other end meshes the tapered timing gear on lower camshaft, the fixing recessed cam of taking turns and control air inlet, igniting of control activity sealing gland piece on lower camshaft, activity sealing gland piece lower end projection or roller and recessed wheel surface Continuous Contact, the sealing assembling insertion interior activity sealing gland block entrance of the cylinder barrel overcoat place, activity sealing gland piece upper end of fast moving up and down.

Advantage of the present invention and effect: at first: a kind of new thinking has been set up in the present invention and design, changed two kinds of old ideas---and namely set up the internal combustion engine thinking of circularly moving piston, changed that piston in the past pumps and the idea of compressed action.

The fuel utilization efficient that improves internal-combustion engine is everybody common pursuit, realize this target, and this just requires us must set up new invention and mentality of designing, changes in the past old idea.In recent years, some of motor-dom or internal-combustion engine circle it is believed that: " compression ratio of motor car engine is larger, and the explosive force that the mixed gas burning produces is just stronger, and the power of motor is just larger ".I think that this saying is unscientific saying.Should say: more large-scale combustion is more complete to contain the composition (concentration) of effective fuel in mixed gas, and the explosive force that produces during the mixed gas burning is just stronger, and the power of motor is just larger ".And it is irrelevant with compression ratio.Taking petrol engine is example: the behavior of compressed mixed gas in petrol engine work is the structural behavior that can't avoid intrinsic on this kind machine construction.This behavior is the process of an effort wasted work, is the primary factor that has reduced engine power.This says, in Gasoline Engine Working Process, to produce the saying of explosive force be unscientific saying to compressed mixed gas, runs counter to especially the saying of law of conservation of energy, and the explosive force of petrol engine all comes from fuel, is never compression.

Secondly, the present invention and design will be set up thinking and the theory of the cam mechanism in circularly moving piston internal combustion engine exactly.The piston of internal-combustion engine is placed in a circumference considers, change the pump Thoughts of formula internal-combustion engine and rotary internal combustion engine of the more ripe piston of prior art, thoroughly overcome the problem that the available engine technology exists, solve several birth defects of piston up and down up-and-down movement formula internal-combustion engine: first has solved compressed mixed gas in piston up and down vertical motion formula internal combustion engine working process, cause effort expense merit, the first defective of lot of energy.Second second largest geneogenous defective that solves piston up and down vertical motion formula internal-combustion engine: combustion-chamber depth is shallow, the distance of descent of piston acting is too short, make after the mixed gas burning expansion once being not have abundant acting to be discharged from, the 2nd, institute's work is not full-amount to be utilized fully, and has wasted a large amount of energy.The 3rd the third-largest defective that solves piston up and down vertical motion formula internal-combustion engine: when piston is done the acting motion downwards, continuous variation because of connecting rod direction position, line of action of force is also constantly changing (from large to small), transferring power completely accurately not, combustion gas expansion institute work is not taken full advantage of in full amount, and wasted a large amount of energy.The 4th the fourth-largest defective that solves piston up and down vertical motion formula internal-combustion engine: because of the movement position relation of connecting rod and bent axle, the crank of bent axle also can't be in the effective transferring power in the torsional moment position of maximum, combustion gas expansion institute work is not taken full advantage of in full amount, and wasted a large amount of energy.

Make in addition the piston of the existing campaign-styled internal-combustion engine of piston linear become the curve circular movement of piston from straight line motion, increased the working stroke of piston, reduced the energy dissipation of expanding gas, eliminated the connecting rod of piston up and down straight line moving type internal-combustion engine and the energy dissipation of crank, when having eliminated piston up and down straight line moving type internal-combustion engine compressed mixed gas for internal-combustion engine energy unnecessary consumption.Also overcome simultaneously existing rotary internal combustion engine acting---be that a, end that strength relatively strong relatively large by combustion chamber volume defeated the end that combustion chamber volume is relatively little, strength is relatively weak and the directed bonding force drive rotor that produces done the directional-rotation motion and the energy dissipation of acting (output work=hold greatly merit-small end merit).

The present invention and design have realized: effectively reduce existing internal-combustion engine and the chemical energy of fuel is converted into the energy consumption of machine self in the mechanical energy process, improved the fuel oil utilization ratio.Ten large advantages of the cam mechanism in circularly moving piston internal combustion engine:

1, the revolutionary character because of the internal-combustion engine structure changes, and the energy consumption when piston is no longer done meaningless pressurized gas along circular-rotation has improved the efficiency of internal combustion engine.2, the circular-rotation of piston has extended the work distance of expanding gas, has increased the working stroke of piston, and more effective minimizing fuel consume has been saved the consumption of the energy, has improved the fuel utilization efficient of internal-combustion engine.3, the piston of circular-rotation is in the tangent direction of floral disc all the time, makes expansion thrust all the time on the moment loading line of maximum, makes the power of internal-combustion engine more powerful.4, circular floral disc transmits torsion accurately, reliably, directly.5, system architecture is clear, and technique is simple, and vibrations swing little, and noise is little; 6, there is no compression process, so this internal combustion engine start resistance is little, inertia is large; 7, the every rotation half cycle of the central shaft of circularly moving piston formula petrol engine, just there are two corresponding pistons in up and down to do work altogether simultaneously at upper point and lower point, they are in 2 thrusts that are subject to respectively expanding gas in up and down, as ion accelerator---successively accelerate.Output torque will be produced large, the effect of powerful; 8, the cam mechanism in circularly moving piston internal combustion engine is when the larger power of needs.Be convenient to along central shaft series connection assembling; 9, pump four large birth defects of formula internal-combustion engine of conventional piston have effectively been overcome; 10, the cam mechanism in circularly moving piston internal combustion engine is because of its lowering and work-saving and successive afterburning effect, and there is no idle work consumption, will save the gasoline energy consumption, increases exponentially the fuel efficiency of petrol engine.

The characteristics of piston rotary motion type internal-combustion engine:

1, the circular-rotation of piston has extended the work distance of expanding gas, has increased the working stroke of piston, and the mixed gas burning is more abundant; 2, the circular-rotation of piston makes piston be in all the time the tangent direction of floral disc, and the thrust of expanding gas is on maximum moment loading line all the time; 3, circular floral disc transmits torsion accurately, reliably, directly; 4, system architecture is clear, makes generating process simple, and kernel component is few, and vibrations swing little, and noise is little; 5, the resistance of start is little, and motional inertia is large; 6, the every rotation half cycle of the central shaft of the cam mechanism in circularly moving piston internal combustion engine, just there are two corresponding pistons in up and down to do work altogether simultaneously at upper point and lower point, they are in 2 thrusts that are subject to respectively expanding gas in up and down, as ion accelerator---successively accelerate, output torque is large, the effect of powerful; 7, the cam mechanism in circularly moving piston internal combustion engine is convenient to along central shaft series connection assembling; Cam mechanism distribution, ignition system structure in 8 circularly moving piston internal combustion engines are simple in structure; 9, the cam mechanism in circularly moving piston internal combustion engine meets thermomechanics, Mechanics of Machinery and law of conservation of energy; 10, the cam mechanism in circularly moving piston internal combustion engine is because of its lowering and work-saving and the effect successively accelerated, and there is no idle work consumption, will be energy saving consumption, significantly improves the fuel efficiency machine of internal-combustion engine.

Four, description of drawings

Fig. 1 of the present invention is cylinder mechanism sectional structure schematic diagram; Fig. 2 is whole perspective view; Fig. 3 is the cam mechanism perspective view; Fig. 4 is cylinder barrel plane structure schematic diagram; Fig. 5 is A-A sectional view in Fig. 4, and Fig. 6 is B-B sectional view in Fig. 4, and Fig. 7 is floral disc piston plane structure schematic diagram; Fig. 8 is C-C sectional view in Fig. 7; Fig. 9 is D-D sectional view in Fig. 7; Figure 10 is piston bore mechanical work principle schematic diagram, is also the campaign-styled internal combustion engine generalized section of piston rotation round.

above-mentioned number in the figure explanation: the circular cylinder barrel of 1-C type, the circular floral disc of 2-, 3-cylinder type piston, 4-piston bore mechanism, 5-cylinder barrel overcoat, 6-internal-combustion engine shell, the 7-bearing, the 8-spring pad, the 9-fixing bolt, the 10-timing gear, 11-timing gear key and groove, the 12-pad, the 13-hold-down bolt, the 14-central shaft, the 15-distribution device, the 16-Cooling system pipe, the 17-timing belt, the 18-timing gear, the tapered timing gear of 19-, the recessed wheel of 20-control activity sealing gland piece, 21-controls air inlet, the cam of igniting, 22-activity sealing gland piece, 23-timing gear axle, 24-timing point firearm, camshaft under 25-, the 26-intake valve, the 27-OHC, 28-igniter hole, the 29-inlet hole, 30-activity sealing gland block entrance, the 31-exhaust port.

Five, embodiment

Referring to Fig. 1, cylinder mechanism is comprised of fixed piston cylinder mechanism 4 and timing gear 10 on the central shaft 14 on housing, wherein piston bore mechanism 4 is comprised of circular floral disc 2 and the circular cylinder barrel 1 of C type with cylinder type piston 3, and housing is to be connected to form by cylinder barrel overcoat 5 and internal-combustion engine shell 6.Are connected with fixing bolt by bearing 7, spring pad 8 in housing and connect centre of location axle 14, the fixing circular floral disc 2 with cylinder type piston 3 in central shaft 14 middle parts, cylinder type piston 3 is fixed on circular floral disc 2 peripheries and evenly distributes, more than at least two.The piston that this central shaft 14 is piston-rotating internal combustion engine is done the center of rotation round motion, is also the pto＝power take-off of this internal-combustion engine.The cylinder mechanism below is distribution device 15, belongs to mature technology, repeats no more here.The structure of piston rotary motion type internal-combustion engine core: 1, " C type, cylindric, annular cylinder barrel 1 " (hereinafter to be referred as cylinder barrel) is the main body of this type internal-combustion engine.2, " solid, ring-type cylinder type, along mutually laterally zygomorphic two pistons 3 of circumference " (hereinafter to be referred as piston) is rigidly connected with " power transmission center floral disc 2 ", in the situation that guarantee that suitable matching gap is located in cylinder barrel 1.3, the proportioning rotating speed of activity hermetic seal piece 22, intake valve 26, timing point firearm 24 acceptor center axles 14 and camshaft is controlled, and realizes opening, closing, light a fire action.4, after the igniting, piston 3 is subjected to make the directional-rotation circular movement under the promotion of expanding gas in cylinder barrel 1, completes acting.5, power passes to center floral disc 2 through piston 3; Pass to central shaft 14, complete power output.

Referring to Fig. 2, from stereogram, cylinder barrel overcoat 5 and internal-combustion engine shell 6 connect to form housing, fix 10, two timing gears 10 of two timing gears on the central shaft 14 that stretch out in internal-combustion engine shell 6 center portions and connect respectively the cam mechanism of up and down same structure with timing belt 17.Two cam mechanisms evenly are fixed on respectively on the housing excircle, fixedly timing gear axle 23, OHC 27 and timing gear axle 23, lower camshaft 25 respectively above housing is outer and on following circumference.Cam mechanism is comprised of timing gear axle 23 assemblies and cam assembly, wherein timing gear axle 23 assemblies by on timing gear axle 23 fixedly timing gear 18 and tapered timing gear 19 form, cam assembly is by on lower camshaft 25, fixedly control activity sealing gland piece recessed takes turns 20, tapered timing gear 19 and the cam 21 of controlling air inlet, igniting form jointly.Take following cam mechanism as the example explanation, simultaneously referring to Fig. 3, fixing timing gear 18 engagement timing belts 17 on timing gear axle 23, tapered timing gear 19 on the timing gear axle 23 lower camshafts 25 of tapered timing gear 19 engagements of the other end, driving lower camshaft 25 synchronously rotates, on lower camshaft 25 also fixedly control activity sealing gland piece 22 recessed take turns 20 and control the cam 21 of air inlet, igniting, activity sealing gland piece 22 lower end projections or roller and the recessed 20 surperficial Continuous Contact of taking turns, activity sealing gland piece 22 upper end sealing assemblings moving up and down are inserted in cylinder barrel overcoat 5.Distribution device 15 also is positioned at outside housing, and the distribution device 15 in figure is one sides.

Referring to Fig. 4 to Fig. 6, the circular cylinder barrel 1 of C type is exactly a ring cylinder barrel, and is fully airtight in cylinder barrel.

Referring to Fig. 7 to Fig. 9, circular floral disc 2 with cylinder type piston 3 is fixed on central shaft 14 by key, fixedly be no less than two cylinder type pistons 3 that symmetry is uniform on circular floral disc 2 peripheries, rotating cylinder type piston 3 is positioned at circular cylinder barrel 1 operation of C type, cylinder type piston 3 is convex surface at an end face of orientation movements direction (direction of arrow), the other end is concave surface, so that better in the interior high-speed secure stable operation of the circular cylinder barrel 1 of C type.

Referring to Figure 10, piston bore mechanism 4 working principles are like this, and simultaneously referring to Fig. 1 and Fig. 2, when starting power central shaft 14 is rotated, intake valve 26 is opened, combustion gas gas enter the circular cylinder barrel 1 of C type interior after, intake valve 26 is closed.Cylinder type piston 3 moves ahead interior continuation of the circular cylinder barrel 1 of C type around circumference, suck mixed gas, intake valve 26 is closed, and mixed gas is lighted after through igniter hole 28, and mixed gas expands and promotes cylinder type piston 3 and move ahead-do work in the interior acceleration of the circular cylinder barrel 1 of C type around circumference.Cylinder type piston 3 will produce power makes central shaft 14 accelerate to rotate by center floral disc 2.Cylinder type piston 3 through the pore 31 that often begins to rehearse after automatic vent, the sealing gland of activity simultaneously piece 22 falls to allowing cylinder type piston 3 pass through smoothly, in a single day cylinder type piston 3 rises immediately by activity sealing gland piece 22, set back, and so far internal-combustion engine is completed a complete air inlet-igniting-acting-exhaust process.Circular floral disc 2 with cylinder type piston 3 moves in a circle continuously, the contiguous circumferential acting.Because piston bore mechanism 4 evenly distributes on a circumference, the balance and stability that works together running.

Be described in detail as follows: the inner chamber of the circular cylinder barrel 1 of C type is exactly the cylinder barrel of rotary internal combustion engine or petrol engine, two cylinder type projections on central circular floral disc 2 are exactly the cylinder type piston 3 of rotation, central circular floral disc 2 thickness 5-8mm and cylinder type piston 3 are common forms one along the integral body of direction of arrow rotation, moves in a circle around central shaft 14.In figure, present position is primary importance, and the opening of cylinder barrel 1 left and right sides is respectively igniter hole 28, inlet hole 29, activity sealing gland block entrance 30 and exhaust port 31.Working procedure is: 1. when piston 3 moves in a circle near activity sealing gland piece 22 along clockwise direction, activity sealing gland piece 22 is taken turns under 20 effect recessed, withdraws from cylinder barrel 1 and allows piston 3 pass through.2. after piston 3 was through activity sealing gland piece 22, activity sealing gland piece 22 entered cylinder barrel 1 sealing cylinder barrel 1, and this moment, the space formed the firing chamber between activity sealing gland piece 22 and piston 3.3. piston 3 continues to move ahead, and intake valve 26 is opened, and because activity sealing gland piece 22 has been closed cylinder barrel 1 one ends, the piston 3 that continues to move ahead forms negative pressure at the remaining space of cylinder barrel 1, sucks rapidly mixed gas, completes intake process.4. this moment, cam 21 is closed intake valve 26.Mixed gas is timed igniter 24 spark ignitor at the next position point.5. the mixed gas of being lighted expands rapidly, and pushing piston 3 moves in a circle along the direction of arrow---acting.6. when piston 3 continued to proceed to again the front end of next location point activity sealing gland piece 22, through after exhaust port 31, waste gas discharged and overflows expanding gas at piston 3, and exhaust port 31 is in normally open all the time.A complete working procedure of Here it is rotary-piston petrol engine.Interior two the corresponding pistons 3 of cylinder barrel 1 within a week that rotates around the garden, have done respectively merit twice, and internal-combustion engine has been completed the process of two air inlets, burning, expansion, exhaust.

Claims (2)

1. the cam mechanism in circularly moving piston internal combustion engine: it is characterized in that: cam mechanism is comprised of timing gear shaft assembly and cam assembly, wherein the timing gear shaft assembly is comprised of timing gear and tapered timing driving gear fixing on the timing gear axle, cam assembly is recessed wheel the by control activity sealing gland piece fixing on camshaft, tapered timing driven gear and control air inlet, the cam of igniting forms, timing gear fixing on the timing gear axle meshes timing belt, tapered timing driven gear on the tapered timing driving gear engagement with cams axle of the timing gear axle the other end, on camshaft fixedly control activity sealing gland piece recessed take turns and control air inlet, the cam of igniting, the projection of activity sealing gland piece lower end or roller and recessed wheel surface Continuous Contact, the activity sealing gland block entrance place in the cylinder barrel overcoat is inserted in the activity sealing gland piece upper end sealing assembling of fast moving up and down.

2. the cam mechanism in circularly moving piston internal combustion engine according to claim 1, it is characterized in that: cylinder barrel overcoat and internal-combustion engine shell connect to form housing, described cam mechanism comprises overhead cam mechanism and lower cam mechanism, overhead cam mechanism and lower cam mechanism have symmetrical vertically same structure, be fixed on uniformly respectively on the excircle of housing, fix respectively upper timing gear axle above housing is outer and on following Zhou Yuan, OHC and lower timing gear axle, lower camshaft, following cam mechanism explanation: on lower timing gear axle, fixing lower timing gear meshes lower timing belt, the fixing lower tapered timing driving gear of the other end of lower timing gear axle meshes the lower tapered timing driven gear on lower camshaft, on lower camshaft fixedly Controlled mobilization sealing gland piece recessed take turns and control air inlet, the lower cam of igniting, the projection of lower activity sealing gland piece lower end or roller and recessed wheel surface Continuous Contact, the lower activity sealing gland block entrance place in the cylinder barrel overcoat is inserted in the lower activity sealing gland piece upper end sealing assembling of fast moving up and down.

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