CN105134369A - Hybrid engine using compressed air and gasoline as power sources and method for using same - Google Patents

Abstract

The invention discloses a hybrid engine using compressed air and gasoline as power sources, belonging to the field of new energy pneumatic engines. The engine is based on the original four-stroke engine, adding a compressed air device and a fuel-pneumatic switching device, and uses fuel exhaust to heat the compressed air. The compressed air device includes an air storage tank and a set of intake and exhaust mechanisms. By stopping the original intake valve of the engine and connecting the hollow valve stem of the pneumatic system, the engine is switched to a two-stroke pneumatic working mode; on the contrary, by closing the compressed air hollow valve The lever opens the original intake valve of the engine at the same time, so that the engine returns to the fuel working mode. The invention uses compressed air to drive the engine to work, reduces vehicle exhaust emissions, and at the same time retains the fuel oil working mode of the engine, improves the energy utilization rate of compressed air by utilizing the waste heat of fuel exhaust gas, and solves the problem of insufficient mileage of vehicles with pure compressed air question.

Description

Hybrid engine using compressed air and gasoline as power source and using method

technical field

The invention relates to a hybrid engine using compressed air and gasoline as power sources and a method for using it, belonging to the field of new energy pneumatic engines.

Background technique

The emergence of the internal combustion engine has greatly promoted the progress of human society. However, with the rapid entry of automobiles into ordinary people's homes, energy and environmental issues have become increasingly prominent. Major industrial countries in the world have begun and have achieved results in the field of new energy vehicles. my country is also developing in the field of electric vehicles and hybrid vehicles There have been innovative achievements, but the development of pneumatic vehicles powered by compressed air has just started.

Pneumatic engine refers to the use of compressed air or liquid nitrogen as a power source to drive the car. Pneumatic engine is getting more and more attention due to its advantages of zero emission, but it also has the disadvantages of low energy storage density and short driving range. Although the thermal efficiency of the traditional internal combustion engine is high, the energy waste generated by its combustion is huge. The heat balance research of the internal combustion engine shows that the power output of the internal combustion engine generally only accounts for 30%-45% (diesel engine) or 20%-30% (gasoline engine) of the total energy released by fuel combustion. , about 30% of the energy is taken away by the exhaust of the internal combustion engine. How to recycle the waste heat of internal combustion engines has gradually become a hot research issue.

Contents of the invention

The invention provides a hybrid engine with compressed air and gasoline as the power source and its use method. On the basis of the original engine, a set of compressed air system and fuel-pneumatic switching system are added, and the compressed air is used to drive the engine to work, reducing It reduces vehicle exhaust emissions while retaining the fuel working mode of the engine. By utilizing the waste heat of fuel exhaust, the energy utilization rate of compressed air is improved, and the problem of insufficient mileage of purely compressed air vehicles is solved.

The invention provides a hybrid engine with compressed air and gasoline as the power source, including the original naturally aspirated engine, which is characterized in that it also includes an air storage tank, a compressed air intake and exhaust mechanism, a compressed air opening and closing mechanism, an engine Intake valve opening and closing mechanism, fuel exhaust and compressed air heat exchange device;

A compressed air intake and exhaust mechanism is added to the cylinder head of the engine. The power comes from the output of the engine itself. A 24-tooth large sprocket is connected in parallel to the engine gas distribution sprocket, and then a 12-tooth small sprocket is driven by the chain to make the engine Works as a two-stroke in pneumatic mode;

The compressed air intake and exhaust mechanism includes an upper cover plate, a lower cover plate, an air distribution slider and a driving mechanism, the upper cover plate and the lower cover plate are arranged relatively parallel, and the air distribution slider is arranged on the upper cover plate and the lower cover plate. Between the cover plates, air intake through holes and exhaust grooves are provided on the air distribution slider. The upper part of the air distribution slider is connected to the driving mechanism, and slides up and down along the guide groove under the action of the driving mechanism; the driving mechanism includes shaft I, eccentric turntable, Ball joint, the shaft I is connected to the bearing and fixed on the bearing seat, the shaft I is driven to rotate by a small sprocket, which is consistent with the reciprocating frequency of the engine piston, the upper part of the eccentric turntable is provided with a through hole, and the shaft I passes through the through hole to drive The eccentric turntable rotates, and the lower end of the eccentric turntable is provided with a cylindrical tube with an inner screw, the ball joint is inserted into the cylindrical tube and fastened with a screw, and the other end of the ball joint is connected to the air distribution slider;

There are air intake through holes and exhaust grooves on the air distribution slider. After the compressed air is connected to the upper cover plate, the air distribution slider reciprocates, and the air intake holes and the compressed air inlets of the upper and lower cover plates, The timing of the air inlet connected to the engine is the air intake stroke of the pneumatic engine, the alignment timing of the exhaust groove of the air distribution slider and the engine connected air inlet of the lower cover, and the compressed air inlet of the upper cover is controlled by Blocking is the exhaust stroke of the air motor.

The compressed air opening and closing mechanism includes a hollow valve stem and a gear transmission mechanism installed on the hollow valve stem that can rotate the hollow valve stem 360 degrees. One end of the hollow valve stem is a through hole, which is connected with the through hole of the lower cover. The other end of the rod is a blind hole, and there is a hole on the rod wall, which is connected to the cylinder head hole of the engine; the opening and closing of the hollow valve rod is realized through the transmission mechanism: the hole on the rod wall of the hollow valve rod and the cylinder head hole of the engine Compressed air can be connected to the timing, and after the hollow valve stem rotates 180°, the hole on the stem wall is closed.

The engine intake valve opening and closing mechanism includes a camshaft, a rocker arm, a guide block and a slide bar, a spring, and an intake valve. The rotation speed of the camshaft is 1/2 of the rotation speed of the engine crankshaft. The cam on the camshaft is in contact with one end of the rocker arm, and the other end of the rocker arm is in contact with the intake valve. The valve, the spring regularly realizes the closing of the valve in the whole process; the slide rod is installed in the guide hole of the guide block, and the guide block is fixed on the engine cylinder head; the slide rod can slide up and down along the guide block, and also It can rotate 0~30 degrees around the guide hole on the guide block, and the slide bar can connect the engine rocker arm adjustment screw and valve through rotation, so that the engine intake valve can work normally under the fuel state; the engine rocker can also be disconnected. The connection between the arm adjustment screw and the valve makes the engine intake valve in a normally closed state under the pneumatic state.

The fuel exhaust gas and compressed air heat exchange device is composed of a U-shaped tube heat exchanger, an electronically controlled pressure gauge, and an electronically controlled switch; the compressed air inlet of the heat exchanger is connected to the air storage tank, and the compressed air outlet of the heat exchanger is connected to the Through holes in the cover plate;

The device uses the exhaust gas discharged from the engine fuel to heat the compressed air, and heats the compressed air in the tube layer of the U-shaped tube heat exchanger by passing the fuel exhaust gas into the shell of the U-shaped tube heat exchanger; the U-shaped tube heat exchange The pressure and temperature of the compressed air in the tube layer of the sensor control the opening and closing of the solenoid valve on the pipeline to adjust the pressure of the tube layer of the U-tube heat exchanger and control the fuel-pneumatic switching time.

In the above solution, the top of the eccentric turntable is provided with positioning bolts for fixing the shaft I.

In the above solution, the transmission mechanism includes a large gear and a small gear, the small gear is mounted on the shaft II, the large gear is mounted on the hollow valve stem, the large gear and the small gear mesh, and the shaft II is connected from the edge of the lower cover plate (without affecting the The position where the air slider works) leads to the upper cover plate, and the rotation of the hollow valve stem is driven by rotating the shaft II outside the upper cover plate. The hollow valve stem can rotate 180° under the drive of the large gear to realize the compressed air and the engine cylinder head. The opening and closing of the direct passage of the hole.

In the above scheme, the fuel exhaust gas and compressed air heat exchange device enters the high-temperature exhaust gas through the upper air inlet of the U-shaped tube heat exchanger when the engine fuel is working, and discharges it from the lower air outlet of the shell. When working, the tube layer of the U-shaped tube heat exchanger is sealed with compressed air at a pressure of 2 MPa, so as to fully absorb the heat of the high-temperature exhaust gas in the shell layer. The gas state change in the heat exchanger approximately satisfies the state equation: pV=mRT. According to Charlie's law, the volume of the compressed air in the heat exchanger remains constant, and the pressure of the compressed air doubles when the temperature rises by 273K. When the tube layer of the U-shaped tube heat exchanger is sealed with compressed air at a pressure of 2MPa, and the temperature rises from 25°C to 298°C, the pressure of the compressed air increases to 4MPa.

The invention provides a method for using a hybrid engine with compressed air and gasoline as power sources. The switching of the working mode of the hybrid engine from fuel oil to pneumatic is as follows: Pneumatic switch signal → turn the hollow valve stem 180° to connect compressed air , and at the same time rotate the slide bar to make the engine rocker arm run without load, so that the intake valve is in a normally closed state → the switching is completed. On the contrary, the process of switching the working mode of the hybrid engine from pneumatic to fuel mode is as follows: fuel switch signal→rotate the hollow valve stem 180° to close the compressed air, and at the same time rotate the slide bar to restore the engine rocker to the working state.

The hybrid engine with compressed air and gasoline as the power source is divided into two working modes: fuel mode and pneumatic mode:

(1) The fuel working mode is the traditional four-stroke gasoline engine working mode, that is, suction (oil-air mixture)→compression→ignition work→exhaust four strokes: when the engine is working in fuel mode, the gas distribution slider is in the engine Reciprocating motion under the action of power; at this time, the hole on the wall of the hollow valve stem is closed, and the compressed air cannot enter the cylinder; the engine fuel exhaust gas passes into the shell of the U-tube heat exchanger to heat the tube layer of the U-tube heat exchanger The compressed air in the tube layer; when the compressed air in the tube layer is heated to the upper critical temperature, a pneumatic switching signal is sent through the sensor;

(2) Rotate the hollow valve stem by 180° through the transmission mechanism so that the hole on the stem wall is aligned with the air inlet of the engine cylinder head, and at the same time rotate the slide rod to disconnect the connection between the engine rocker arm adjustment screw and the valve, and the engine intake The valve is normally closed, and the engine becomes: the pneumatic working mode in which the compressed air intake works → the gas distribution slider exhausts → the compressed air intake performs work → the gas distribution slider and the engine exhaust valve exhaust at the same time; when the tube layer compresses the air When the temperature drops to the lower critical temperature, the sensor sends a fuel switching signal;

(3) Rotate the hollow valve stem 180° through the transmission mechanism to close the hole on the rod wall, and rotate the slide rod at the same time to connect the engine rocker arm adjustment screw with the valve, the engine intake valve works normally, and the engine resumes air intake→compression→ignition Work→exhaust fuel working mode.

The invention realizes two working modes of fuel oil and pneumatic on one cylinder, and absorbs about 30% of the energy emitted by the engine fuel exhaust through a heat exchanger, heats the compressed air, and improves the available energy of the compressed air. Since the expansion of compressed air in the cylinder is an endothermic process, the engine block will not overheat after the fuel and air hybrid engines switch to work. Since the fuel oil working mode is a four-stroke mode, while the pneumatic working mode is a two-stroke mode, under the same power output, the intake pressure of the pneumatic working mode can be reduced by about 2 times. The higher the utilization rate of compressed air.

The present invention can be realized by transforming the original engine: the hybrid engine with compressed air and gasoline as the power source retains the original four-stroke gasoline engine system, and a compressed air intake hole is processed on the cylinder head of the engine, and the engine is closed by turning off the engine. The air valve is connected to the compressed air to make the engine realize the working mode driven by compressed air. When the engine works in fuel mode, the high-temperature exhaust gas generated by the fuel heats the compressed air through the heat exchanger. When the engine is switched to pneumatic mode, high-temperature compressed air enters the cylinder to expand and do work, and at the same time absorbs the temperature of the cylinder wall. The compressed air achieves the most efficient isothermal expansion, and the use of engine exhaust not only improves the heat utilization rate of fuel but also realizes The high-efficiency thermal expansion of compressed air solves the problem of insufficient mileage of pure air-powered engines in two working modes.

Beneficial effects of the present invention:

(1) The present invention designs a set of compressed air valve mechanism, which realizes the two functions of intake and exhaust through an air intake hole on the engine cylinder head and does not affect each other: the opening of the engine cylinder head reduces the fuel consumption of the engine under the working mode. The compression ratio, but the effect of the hollow valve stem can greatly reduce the change of the compression ratio, so that after the cylinder head is opened, the engine still has good power under the fuel condition.

(2) The hybrid engine with compressed air and gasoline as the power source is four-stroke in fuel mode, and two-stroke in pneumatic mode. Two-stroke is compared with four-stroke under the same engine displacement, theoretically The output power of the upper two-stroke engine is twice that of the four-stroke engine. When the engine is working in the pneumatic mode, in order to achieve the same output power as the fuel four-stroke mode, the intake pressure of the pneumatic engine can be reduced, so that the energy of the compressed air in the cylinder can be maximized.

(3) The engine is refitted on the original four-stroke gasoline engine, and the opening and closing switching of the engine intake valve is realized through the guide block and the slide bar, while the exhaust valve of the engine is not changed. Due to the working characteristics of the pneumatic engine, the intake and exhaust of the pneumatic engine are required to be completed in a short time. This design makes the engine work in the pneumatic mode. Every four strokes, the exhaust is through the exhaust groove of the air distribution slider. Exhaust together with the engine exhaust valve, which greatly reduces the energy loss of the air engine due to exhaust resistance. The engine realizes the working mode of two power sources on a set of mature engine system, which has strong practicability.

(4) The present invention utilizes the waste heat of the exhaust gas of the fuel engine to heat the compressed air through the U-shaped tube heat exchanger, and the state change of the gas in the heat exchanger approximately satisfies the state equation: pV=mRT. The volume of the air remains constant, and the pressure of the compressed air doubles for every 273K increase in its temperature. When the tube layer of the U-tube heat exchanger is sealed with compressed air at a pressure of 2MPa, and the temperature rises from 25°C to 298°C, the pressure of the compressed air increases to 4MPa. This not only improves the fuel utilization rate of the internal combustion engine, but also solves the problem of low expansion efficiency of compressed air under the condition of adiabatic expansion. Compared with internal combustion engines and pure pneumatic engines, fuel and compressed air hybrid engines have obvious effects of high efficiency, energy saving and emission reduction.

Description of drawings

Fig. 1 is a structural schematic diagram (partial section) of the hybrid engine of the present invention.

Figure 2 is a schematic diagram of the structure of the original naturally aspirated engine (partial section).

Figure 3 is a schematic diagram (sectional view) of compressed air intake and exhaust process.

In the figure: 1--bearing seat; 2-camshaft; 3-bearing; 4-bearing cover; 5-shaft Ⅰ; 6-small sprocket; 7-eccentric turntable; 8-chain Ⅰ; 9-gas distribution sprocket ;10-ball universal joint; 11-screw; 12-big sprocket; 13-lower cover; 14-upper cover; 15-air distribution slider; 16-axis II; 17-pinion; 18- Big gear; 19-thin-walled bearing; 20-hollow valve stem; 21-thrust bearing; 22-cylinder head hole; 23-chain II; 24-piston; 25-crankshaft small sprocket; 26-heat exchanger; Air storage tank; 28-rocker arm; 29-valve adjustment screw; 30-guide block; 31-sliding rod; 32-spring; 33-intake valve.

Detailed ways

The present invention is further illustrated by the following examples, but not limited to the following examples.

Example:

As shown in Figures 1 to 3, a hybrid engine powered by compressed air and gasoline, including the original four-stroke naturally aspirated engine, gas storage tank, compressed air intake and exhaust mechanism, compressed air opening and closing mechanism, engine Intake valve opening and closing mechanism, fuel exhaust and compressed air heat exchange device.

The original four-stroke naturally aspirated engine includes piston 24, crankshaft small sprocket 25, crankshaft small sprocket 25 and gas distribution sprocket 9 linked by chain II 23, gas distribution sprocket 9 and large sprocket 12 are fixed by screws 11 On the camshaft 2, the camshaft 2 pushes away the spring 32 through the rocker arm 28 to open the intake valve 33, and the gap between the intake valve 33 and the rocker arm 28 is regulated by the valve adjustment screw 29.

The compressed air intake and exhaust mechanism includes a bearing seat 1, a bearing 3, a bearing cover 4, and a shaft I5, wherein a small sprocket 6 is mounted on the shaft I5, and the small sprocket 6 is connected with a large sprocket 12 through a chain I8, and the shaft I5 is mounted on Eccentric turntable 7 is arranged, and ball joint 10 is housed on eccentric turntable 7, and ball joint 10 is connected with gas distribution slider 15, and gas distribution slider 15 is between upper cover plate 14 and lower cover plate 13. The top of the eccentric turntable 7 is provided with positioning bolts for fixing the shaft I5.

The compressed air opening and closing mechanism includes a hollow valve stem 20, a thin-walled bearing 19, a thrust bearing 21, a large gear 18, and a pinion 17, wherein the pinion 17 is installed on the shaft II 16, and the large gear 18 is installed on the hollow valve stem 20 , the large gear 18 meshes with the small gear 17, and the shaft II16 passes from the edge of the lower cover plate 13 (the position that does not affect the operation of the gas distribution slider) to the upper cover plate 14; the small gear 17 is driven by the rotating shaft II16, thereby driving the large gear 18 Realize the rotation of the hollow valve stem 20, when the hole on the wall of the hollow valve stem 20 is aligned with the cylinder head hole 22 of the engine, the compressed air is connected, and the hollow valve stem 20 rotates through 180° to cut off the intake of compressed air; through the hollow The rotation of the valve stem realizes the opening and closing of the direct passage between the compressed air and the cylinder head hole of the engine.

The engine intake valve opening and closing mechanism includes a camshaft 2, a rocker arm 28, a guide block 30, a slide bar 31, a spring 32, and an intake valve 33. The cam on the camshaft 2 is in contact with one end of the rocker arm 28, and the other end of the rocker arm 28 is in contact with the intake valve 33, and the rocker arm 28 pushes the intake valve 33 with the rotation of the camshaft 2 regularly, and the spring 32 During the whole process, the intake valve 33 is regularly closed.

The fuel exhaust and compressed air heat exchange device includes a U-shaped tube heat exchanger 26, and the heat exchanger 26 has four shell air inlets, shell exhaust ports, tube layer air inlets, and tube layer exhaust ports. Inlet and exhaust ports, wherein the tube layer air inlet of heat exchanger 26 is connected with gas storage tank 27, the tube layer gas outlet of heat exchanger 26 is connected with upper cover plate 14, and the tube shell layer air inlet of heat exchanger 26 is Connected to the engine exhaust port. The fuel exhaust gas and compressed air heat exchange device enters the high-temperature exhaust gas through the upper air inlet of the U-shaped tube heat exchanger when the engine fuel is working, and discharges it from the lower air outlet of the shell. When the engine fuel is working, the U The tube layer of the type tube heat exchanger is sealed with compressed air at a pressure of 2MPa in order to fully absorb the heat of the high-temperature exhaust gas in the shell layer. The gas state change in the heat exchanger approximately satisfies the state equation: pV=mRT. According to Charlie's law, the volume of the compressed air in the heat exchanger remains constant, and the pressure of the compressed air doubles when the temperature rises by 273K. When the tube layer of the U-shaped tube heat exchanger is sealed with compressed air at a pressure of 2MPa, and the temperature rises from 25°C to 298°C, the pressure of the compressed air increases to 4MPa.

The specific implementation process of the fuel-pneumatic hybrid engine of the present invention is:

(1) When the engine is working in the fuel mode, the hole on the wall of the hollow valve stem 20 faces away from the cylinder head hole 22, and the slide rod 31 is interposed between the intake valve 33 and the valve adjustment screw 29 so that the engine exhaust valve can be adjusted accordingly. When the rocker arm is normally opened and closed, the engine works according to the intake-compression-ignition expansion-exhaust mode of the traditional four-stroke internal combustion engine. When the engine works in the fuel mode, the air distribution slider 15 reciprocates without load under the action of the driving mechanism. The tail gas discharged from the fuel oil passes into the shell air inlet of the U-shaped tube heat exchanger 26 to heat the tube layer compressed air.

The operation of the drive mechanism is: the power is transmitted from the small crankshaft sprocket 25 to the gas distribution sprocket 9 through the chain II 23, the gas distribution sprocket 9 interacts with the large sprocket 12, and the large sprocket 12 is transmitted to the small sprocket through the chain I8. The sprocket 6; finally transmits the power to the shaft I5, so that the air distribution slider 15 is displaced up and down through the eccentric turntable 7 and the ball joint 10.

(2) There are pressure and temperature sensors inside the U-shaped tube heat exchanger. When the temperature of the compressed air in the tube layer reaches 200°C and the pressure reaches 4MPa, by rotating the slide bar 31, there is no gap between the engine rocker arm 28 and the intake valve 33. Support, the intake valve 33 cannot be opened with the movement of the rocker arm 28, the engine intake valve 33 is normally closed, and the rotating shaft II16 drives the pinion 17, thereby driving the large gear 18 and the hollow valve stem 20 to rotate 180°, so that The hole on the rod wall of the hollow valve stem 20 is opposite to the cylinder head hole 22, and the compressed air can enter the engine through the hollow valve stem 20 to push the piston 24 to do work. When the air distribution slider 15 moves to the A state in Figure 3, the compressed air enters the engine; when the air distribution slider 15 moves to the B state in Figure 3, the compressed air stops entering the engine, and the gas expands to do work; when the gas distribution When the slider 15 moved to the C state in Fig. 3, the compressed air was discharged from the engine. The engine works under the cycle mode of intake-exhaust (exhaust through the gas distribution slider 15)-intake-exhaust (simultaneously exhaust through the gas distribution slider 15 and the engine exhaust valve) in the pneumatic mode.

(3) When the temperature of the compressed air in the tube layer of the U-shaped tube heat exchanger drops to 10°C, by rotating the slide bar 31, there is support between the engine rocker arm 28 and the intake valve 33, and the valve 33 follows the rocker arm 28 to open and close, the engine intake valve 33 returns to normal, and at the same time, the rotating shaft II 16 drives the pinion 17, thereby driving the large gear 18 and the hollow valve stem 20 to rotate 180°, so that the hole on the wall of the hollow valve stem 20 faces away from the The cylinder head hole 22 cuts off the compressed air. The engine switches to fuel mode.

The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those of ordinary skill in the relevant technical fields can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the protection category of the present invention.

Claims (6)

1. the hybrid power engine that is power source with pressurized air and gasoline, comprise original-pack naturally aspirated engine, it is characterized in that: also comprise gas holder, pressurized air intake and exhaust mechanism, pressurized air switching mechanism, engine charge valve opening locking mechanism, tail gas of fuel and pressurized air heat-exchanger rig;

Described pressurized air intake and exhaust mechanism, comprise upper cover plate, lower cover plate, distribution slide block and driving mechanism, upper cover plate and the opposing parallel setting of lower cover plate, described distribution slide block is arranged between upper cover plate and lower cover plate, distribution slide block is provided with air inlet through hole and air vent, distribution slide block top connects driving mechanism, slides up and down under driving mechanism effect along guide groove; Driving mechanism comprises axle I, eccentric rotating disk, ball head universal, axle I connection bearing, be fixed on bearing support, axle I is by minor sprocket driven rotary, consistent with the reciprocating frequence of engine piston, and eccentric rotating disk top is provided with through hole, axle I drives eccentric dial rotation through this through hole, eccentric rotating disk lower end is provided with the cylindrical drum of screw thread in band, and ball head universal is inserted in this cylindrical drum and is fastenedly connected by screw thread, and the other end of ball head universal connects distribution slide block;

Described pressurized air switching mechanism comprises hollow valve rod and is arranged on the gear drive that hollow valve rod can make hollow valve rod rotating 360 degrees; Hollow valve rod one end is through hole, is connected with the through hole of lower cover plate, and the hollow valve rod the other end is blind hole, and bar wall is provided with hole, the cylinder head hole of this hole connecting engine;

Described engine charge valve opening locking mechanism comprises camshaft, rocking arm, guide pad and slide bar, spring, intake valve; The rotating speed of described camshaft is 1/2 of engine crankshaft rotating speed, cam on camshaft contacts with one end; the rocking arm the other end contacts with intake valve, rocking arm along with camshaft rotating rule back down intake valve, the closedown realizing valve that spring is regular in whole process; Described slide bar is L-type bar, and slide bar is fixed on guide pad, and guide pad is fixed on engine cylinder head, and be provided with pilot hole in the middle of guide pad, slide bar can rotate centered by pilot hole, also can move up and down along pilot hole, and slide bar is fixed by bolt and rocking arm;

Described tail gas of fuel and pressurized air heat-exchanger rig are made up of U-shaped tubular heat exchanger, electrohydraulic pressure control table, electrically switchable grating; The compressed air inlet of heat exchanger connects gas holder, and the compressed air outlet of heat exchanger connects the through hole of upper cover plate.

2. the hybrid power engine that is power source with pressurized air and gasoline according to claim 1, is characterized in that: described eccentric rotating disk top is provided with holding down bolt, for stationary axle I.

3. the hybrid power engine that is power source with pressurized air and gasoline according to claim 1, it is characterized in that: described gear drive comprises gearwheel and small gear, small gear is arranged on axle II, gearwheel is arranged on hollow valve rod, gearwheel and small gear engagement, axle II is through lower cover plate edge and upper cover plate, the rotation of hollow valve rod is driven by the axle II rotated outside upper cover plate, hollow valve rod can rotate 180 ° under gearwheel drives, and realizes the opening and closing of pressurized air and engine cylinder head bore direct path.

4. the hybrid power engine that is power source with pressurized air and gasoline according to claim 1, it is characterized in that: centered by the slide bar of the described engine charge valve opening locking mechanism pilot hole on guide pad, rotate 0 ~ 30 degree, realize the switching of engine charge valve by normal working and normally off.

5. the hybrid power engine that is power source with pressurized air and gasoline according to claim 1, it is characterized in that: described tail gas of fuel and pressurized air heat-exchanger rig, when engine fuel works, high-temperature tail gas is entered by the enterprising gas port of the shell of U-shaped tubular heat exchanger, from shell, air outlet is discharged, during engine fuel work, the pressurized air of airtight 2MPa pressure in the tube layer of U-shaped tubular heat exchanger, so that the heat fully absorbing shell high-temperature tail gas.

6., with a using method for pressurized air and the gasoline hybrid power engine that is power source, it is characterized in that: pressurized air and gasoline are that the hybrid power engine work of power source is divided into fuel oil pattern and pneumatic mode two kinds of mode of operations to hocket:

(1) fuel oil service pattern is traditional four-stroke gasoline engine mode of operation, is air-breathing → compression → ignition-powering → exhaust four stroke: motor is when fuel oil MODE of operation, and distribution slide block is reciprocating under the effect of engine power; Hole now on hollow valve rod bar wall is closed, and pressurized air can not enter cylinder; Engine fuel tail gas passes into the pressurized air in the shell heating U-tube heat exchanger tube layer of U-tube heat exchanger; When tube layer pressurized air is heated to upper critical temperature, send pneumatic switching signal by sensor;

(2) rotating hollow valve rod 180 ° by driving mechanism makes the hole on its bar wall and engine cylinder head suction port align, rotating rod simultaneously, the connection making engine rocker adjust screw and valve disconnects, engine charge valve is in normally closed, and motor becomes operating pneumatic pattern: pressurized air air inlet acting → distribution slide block exhaust → pressurized air air inlet acting → distribution slide block and engine exhaust port are vented simultaneously; When tube layer compressed air temperature is reduced to lower critical temperature, sensor sends fuel oil switching signal;

(3) rotating hollow valve rod 180 ° by driving mechanism makes the hole on bar wall close, rotating rod simultaneously, make engine rocker adjust screw to be connected with valve, engine charge valve normally works, and motor recovers the fuel oil service pattern of air-breathing → compression → ignition-powering → exhaust.