CN201013446Y

CN201013446Y - Hybrid power engine

Info

Publication number: CN201013446Y
Application number: CNU2007201078329U
Authority: CN
Inventors: 聂相虹; 俞小莉; 刘林; 胡军强
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2008-01-30
Anticipated expiration: 2017-04-06

Abstract

The utility model relates to a power engine, aiming to provide an air-powered fuel and gas hybrid engine; the engine comprises at least one cylinder; the cylinder is provided with a cylinder air inlet, a tired air emission door, an exhaust emission door and an ignition device; the compressed air outlet of a heat exchanger is connected with the cylinder air inlet; the compressed air inlet of the heat exchanger is connected with the compressed air tank through air-lines; and a decompressor is arranged at the air-line; the exhaust inlet of the heat exchanger is connected with the exhaust emission door; a fuel tank is connected with the ignition device of the cylinder; the exhaust outlet of the heat exchanger and the tired air emission door of the cylinder are respectively communicated with the atmosphere; through adopting the power of the air and the internal combustion in the same cylinder, the utility model can solve the problems of air power and internal combustion, and can make a good use of the impossible avoided loss energy, thereby improving the economic performance ; besides, the utility model is simple in structure and can be realized easily.

Description

Hybrid power engine

Technical field

The utility model relates to a kind of power engine, and more particularly, the utility model relates to a kind of Pneumatic oil and gas mixed-power motor.

Background technique

The oil and gas burning of internal-combustion engine has produced exhaust emission, and is faced with the pressure of energy crisis.The energy source of air motor is zero to pollute extensively and to environment, and air motor is subjected to the influence of mechanism but develop so far, is short of power inefficiency.

Chinese patent [99116190] disclosed " air car " has proposed pneumatic and internal combustion or electronic mixing, but the hybrid power engine compressed air to do work cylinder of this patent is a cylinder independently, and have only when compressed-air power is used inconvenience, just use combustion power or electric-powered.Chinese patent " motor car engine of pressurized air-oil and gas mixed power " (ZL02111984.8) has also proposed mixing of pressurized air and oil and gas, but this patent compressed air to do work and oil and gas acting are respectively two cylinders.

All there is following problem in the patent of above hybrid power engine: not only be provided with two at least with upper cylinder on structure, and air motor and internal-combustion engine or motor accessory structure separately all must possess, huge and complicated on the structure, two cylinders are set in addition do work respectively and also have a following difficult problem, make it be difficult to further enter practicality.

The problem that the acting of internal-combustion engine Indivudual cylinder exists:

1. energy loss is serious

The high temperature that produces during combustion in IC engine can cause the overheated of component, and in order to guarantee the proper functioning of component, internal-combustion engine all is provided with cooling system.Cooling system has been kept the temperature range of component proper functioning on the one hand, has also taken away a large amount of heats on the other hand, has caused energy dissipation.The energy that fuel combustion produces has 1/3 water that is cooled to take away.

2. structure such as cylinder inner carrier can't be cooled off

Though cooling system can reduce the temperature of casing wall, piston assembly and cylinder inner wall still are difficult to cooling, not only make piston assembly be in the state of high temperature for a long time, and can cause consequences such as surface ignition, detonation.

3. chamber temperature is too high

Internal-combustion engine is after exhaust finishes, and cylinder temperature is still very high, and too high temperature can influence charging efficiency, and the deficiency of air causes burning insufficient, not only wastes energy but also environment has been caused serious pollution.

4. the problem of residual gas

When internal-combustion engine finished in exhaust, because the influence of clearance volume, also residual waste gas can have a negative impact to next circuit burning in cylinder.

There is following problem in the acting of air motor Indivudual cylinder:

1. the problem that weary blast takes

Weary gas after the air motor acting also has certain pressure, and the value of utilization is arranged, and can cause waste if directly it is entered atmosphere.

2. the acting heat exchange efficiency that expands is low

If air motor expands when acting from external world's absorption heat, can improve output power, and all there is the low problem of heat exchange efficiency in the structure of above two patents, the time of expansion expansion stroke is extremely short, the heat that process casing wall and heat exchange facility obtain is very little, can't make full use of the used heat that combustion in IC engine produces.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art, it is same cylinder that a kind of pneumatic and clutch release slave cylinder oil and gas are provided, simultaneously with pressurized air and oil and gas as power source, also can use pressurized air or oil and gas as power source separately.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model provides a kind of hybrid power engine, comprises at least one cylinder 13, and cylinder 13 has piston 10 and connecting rod 11 structures, and cylinder intake valve 6, weary gas exhaust valve 7, exhausting waste gas door 8 and ignition mechanism 9 are set on the described cylinder 13; The compressed air outlet of heat exchanger 12 links to each other with cylinder intake valve 6; The compressed air inlet of heat exchanger 12 links to each other with compressed air reservoir 1 through pneumatic tube 2, is provided with decompressor 3 on pneumatic tube 2; The exhaust gas entrance of heat exchanger 12 links to each other with exhausting waste gas door 8; Fuel reservoir 4 links to each other with the ignition mechanism 9 of cylinder 13 through fuel pump deliver line 5; The weary gas exhaust valve 7 of the waste gas outlet of heat exchanger 12 and cylinder communicates with atmosphere respectively.

As a kind of improvement of the present utility model, described ignition mechanism 9 is that gas ignition device or fuel injector igniter are wherein a kind of.

As a kind of improvement of the present utility model, described decompressor 3 is provided with a changing valve that communicates with atmosphere 14 with pneumatic tube 2 between heat exchanger 12 compressed air inlets.

As a kind of improvement of the present utility model, described weary gas exhaust valve 7 is connected a control gear by signaling line respectively with ignition mechanism 9.

As a kind of improvement of the present utility model, described cylinder intake valve 6 links to each other with bent axle by driving mechanism respectively with exhausting waste gas door 8.

Compared with prior art, the beneficial effects of the utility model are:

This motor has adopted pneumatic, interior excessively heated axle cylinder acting, can all be solved with shortcoming internal combustion pneumatic, and inevitable separately off-energy effectively is used, and improved economic performance, and this is simple in structure, is easy to realize.

(1) component in the internal combustion cylinder: cold pressurized air enters cylinder directly cooling piston top and casing wall, and in expansion acting and exhaust process after this, can cool off the component that are difficult to cool off in the internal combustion cylinder gradually.

(2) internal combustion exhaust gases is residual: compressed-air actuated pressure is far longer than the pressure of exhausting waste gas end of a period exhaust gas inside cylinder, and therefore compressed-air actuated entering is enough to residual exhaust gases in the cylinder is evicted out of cylinder.

(3) internal combustion air inlet: the air of internal combustion burning is from weary gas, and the quality that weary gas is stayed in the cylinder can guarantee the enough air of internal combustion burning by controlled weary gas exhaust valve control.

(4) the weary gas of air motor: the weary gas of air motor acting directly enters atmosphere and can cause waste.The utility model has effectively utilized part energy with the weary gas of the part pressurized air that burning needs as oil and gas.

The utility model is converted to favourable factor with both shortcomings, after the internal combustion exhaust finishes, the temperature of casing wall and piston head is still very high, this moment, pressurized air entered in the cylinder, in the process of after this acting and exhaust, can cool off these component gradually, guarantee the temperature of component on the one hand, the acting absorption portion that expands on the other hand heat has also improved output work.

Description of drawings

Fig. 1 is that hybrid power engine constitutes schematic representation;

Fig. 2 is the driving mechanism structure figure of cylinder intake valve, weary gas exhaust valve and exhausting waste gas door;

Fig. 3 is the control schematic representation of weary gas exhaust valve and fuel injector igniter.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Hybrid power engine in the present embodiment constitutes as shown in Figure 1, and cylinder 13 of motor, cylinder 13 have piston 10 and connecting rod 11 structures, and cylinder intake valve 6, weary gas exhaust valve 7, exhausting waste gas door 8 and ignition mechanism 9 are set on the cylinder 13; The compressed air outlet of heat exchanger 12 links to each other with cylinder intake valve 6; The compressed air inlet of heat exchanger 12 links to each other with compressed air reservoir 1 through pneumatic tube 2, is provided with decompressor 3 on pneumatic tube 2; The exhaust gas entrance of heat exchanger 12 links to each other with exhausting waste gas door 8; Fuel reservoir 4 links to each other with the ignition mechanism 9 of cylinder 13 through fuel pump deliver line 5; The weary gas exhaust valve 7 of the waste gas outlet of heat exchanger 12 and cylinder communicates with atmosphere respectively.Also be provided with a changing valve that communicates with atmosphere 14 on the pneumatic tube 2 between decompressor 3 and heat exchanger 12 compressed air inlets.

Cylinder intake valve 6 links to each other with bent axle by cam or other driving mechanism respectively with exhausting waste gas door 8.Weary gas exhaust valve 7 is connected a control gear 15 by signaling line respectively with ignition mechanism 9.

The fuel performance that provides in the ignition mechanism 9 based on fuel storage tanks 4 is selected, and can be that gas ignition device or fuel injector igniter are wherein a kind of.

The method of operation of hybrid power engine is as follows in the present embodiment:

Operating mode one:

Process pneumatic tube 2 is in the pre-process that expands from gas holder 1 for pressurized air, and the high-temp waste gas of discharging with exhausting waste gas door 8 carries out heat exchange by heat exchanger 12, after obtaining heating, in piston top dead center position, cylinder intake valve 6 is opened, and enters in the cylinder, and inflation finishes.After cylinder intake valve 6 was closed, pressurized air promoted 11 actings of piston 10 drivening rods, and decompression also absorbs heat, and component obtain cooling in the cylinder;

After piston 10 moved to bottom dead center position, weary gas exhaust valve 7 was opened, and the air after the expansion is discharged outside the cylinder gradually, goes upward to desired location at piston 10, and the cylinder internal memory leaves a certain amount of weary gas, and weary gas exhaust valve 7 cuts out, and piston 10 goes upward to top dead center position;

Oil and gas in the fuel reservoir 4 are by delivery line 5, and spray into cylinder by ignition mechanism 9 and light, and the fuel combustion acting moves to bottom dead center position until piston 10;

Exhausting waste gas door 8 is opened, and gas of combustion drains into heat exchanger 12, and high-temp waste gas carries out heat exchange via heat exchanger 12 and the pre-pressurized air that expands.

Fig. 2 is the driving mechanism structure figure of cylinder intake valve, weary gas exhaust valve and exhausting waste gas door; The opening and closing of Fig. 2 cylinder intake valve 6 and exhausting waste gas door 8 are fixed constantly, and they are the same with conventional engines, can pass through cam mechanism, carry out cam by the bent axle drive and carry out intake and exhaust.The close moment of weary gas exhaust valve 7 will be adjusted according to operating mode, and when load increased, weary gas exhaust valve 7 close moment left more weary gas ahead of time in the cylinder, and the fuel that sprays in the cylinder also will increase, thereby improves the output work of motor, and vice versa.

Among Fig. 3, sensor is with detected load regulation signal input control device 15, and control gear 15 adopts controller ECM, and the back output signal is controlled the action of weary gas exhaust valve 7 and ignition mechanism 9 as calculated.The MC9S12DP256 chip that controller ECM can select for use Freescale company to produce, programmed environment can be used the Codewarrior software of Metrowerks company.

Operating mode two:

When Low oil Fuel or load are low, can only adopt compressed air to do work.Through after the pneumatic tube 2 pre-processes that expand, in piston top dead center position, open, and enters in the cylinder by cylinder intake valve 6 from gas holder 1 for pressurized air, and inflation finishes; After cylinder intake valve 6 was closed, pressurized air promoted piston 10 and connecting rod 11 actings, moves to bottom dead center position up to piston 10; Weary gas exhaust valve 7 is opened, and the air after the expansion is discharged outside the cylinder gradually, and at piston 10 top dead center positions, weary gas exhaust valve 7 cuts out; After this, motor does not do work 360 ° crank angle idle running, up to next one circulation beginning.

Operating mode three:

When pressurized air is not enough, can directly air inlet from atmosphere environment, at this moment, decompressor 3 is opened with pneumatic tube 2 changing valves that communicate with atmosphere 14 that be provided with between heat exchanger 12 compressed air inlets, lacks gas exhaust valve 7 and closes fully in whole circulation.The same air-breathing, compression, acting and four strokes of exhaust of experiencing with traditional combustion engine.

Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.

Claims

1. hybrid power engine, comprise at least one cylinder (13), cylinder (13) has piston (10) and connecting rod (11) structure, it is characterized in that, cylinder intake valve (6), weary gas exhaust valve (7), exhausting waste gas door (8) and ignition mechanism (9) are set on the described cylinder (13); The compressed air outlet of heat exchanger (12) links to each other with cylinder intake valve (6); The compressed air inlet of heat exchanger (12) links to each other with compressed air reservoir (1) through pneumatic tube (2), is provided with decompressor (3) on pneumatic tube (2); The exhaust gas entrance of heat exchanger (12) links to each other with exhausting waste gas door (8); Fuel reservoir (4) links to each other with the ignition mechanism (9) of cylinder (13) through fuel pump deliver line (5); The weary gas exhaust valve (7) of the waste gas outlet of heat exchanger (12) and cylinder communicates with atmosphere respectively.

2. hybrid power engine according to claim 1 is characterized in that, described ignition mechanism (9) is that gas ignition device or oil ignition device are wherein a kind of.

3. hybrid power engine according to claim 1 is characterized in that, described decompressor (3) is provided with a changing valve that communicates with atmosphere (14) with pneumatic tube (2) between heat exchanger (12) compressed air inlet.

4. hybrid power engine according to claim 1 is characterized in that, described weary gas exhaust valve (7) connects a control gear by signaling line.

5. hybrid power engine according to claim 1 is characterized in that, described intake valve (6) links to each other with bent axle by driving mechanism respectively with exhausting waste gas door (8).