CN106640371A - Single mode four-stroke minitype water-cooling oil gas electricity generating engine - Google Patents

Abstract

The invention discloses a single mode four-stroke minitype water-cooing oil gas electricity generating engine, and relates to the technical field of engines. A piston arranged in an air cylinder is connected to a bent shaft through a connecting rod, reciprocating motion of the piston is converted to rotational motion through the bent shaft, the two ends of the bent axle are connected to electric generators, the left end of a combustion chamber is provided with an air suction opening and an air suction valve which switches on and off the air suction opening, the right end of the combustion chamber is provided with an air exhaust and an air exhaust valve which switches on and off the air exhaust, a communicating path which communicates a rocker arm chamber inside a bent shaft chamber and a rocker arm chamber inside a cylinder head lid is formed between a cylinder head and a cylinder body, pushing rods and tappet rods are inserted in the two sides of the communicating path, the front end parts of the tappet rods abut against air suction cams of cam shafts and exhaust cams of the cam shafts in the bend shaft chamber, the other ends of the pushing rods abut against rock arms arranged in the rock arm chamber, and the rock arms are connected to the air suction valve and the air exhaust valve through valve springs. The single mode four-stroke minitype water-cooling oil gas electricity generating engine is low in oil consumption and gas consumption, low in noise, light in weight and small in size, can inhibit the increase of a starting torque when being started and inhibit explosion inside a noise deader no matter a geometry compression ratio is high or low.

Description

The stroke Miniature water cold oil gas generating engine of monotype four

Technical field

The present invention relates to technical field of engines, and in particular to even if a kind of, geometrical compression ratio is high or low can suppress The increase of starting torque during startup, and four stroke water-cooled oil-gas two-ways of blast in silencer can be suppressed to start Machine.

Background technology

At present, four stroke Miniature water cold oil gas generating engine, in having been widely used for various equipment, example；Pure electric vapour Car is used for mobile charging device, vehicle-mounted generating equipment, for mountain area, island generating equipment, typically in order to improve the heat of engine Efficiency, the compression ratio (expansion ratio) improved in combustion chamber is effective, but, if improving compression ratio, pressure during compression is just Can increase, therefore, starting torque during engine start increases, with hand, from the feelings of the generating engine of double actuating apparatus Under condition, if moment of torsion is big when starting, operator needs bigger power, to install decompressor, and based on this, design is a kind of new The stroke Miniature water cold oil gas generating engine of monotype four or necessary.

The content of the invention

For not enough present on prior art, the present invention seeks to be to provide a kind of stroke of monotype four miniature water-cooled Oil gas generating engine, reasonable in design, the increase of no matter geometrical compression ratio is high or low when can suppress to start starting torque, And suppressing blast in silencer, and low oil, gas consumption, low noise, light weight, small volume, discharge capacity is little, it is easy to promote the use of.

To achieve these goals, the present invention is by the following technical solutions realizing：The stroke Miniature water of monotype four Cold oil gas generating engine, including cylinder, combustion chamber, crankshaft room, oil chamber, rocker arm chamber and electric power system, the rear portion of cylinder Combuster is set, and the top of cylinder is provided with rocker arm chamber, and the bottom of cylinder is provided with crankshaft room, and the bottom of crankshaft room is lubrication Grease chamber；The cylinder includes cylinder body and the cylinder head installed in cylinder body upper end, and cylinder head upper end is provided with cylinder head cover, cylinder body Bottom be provided with crankshaft room, the piston that can be moved in complex way is installed in cylinder body, piston lower section is provided with connecting rod, living Plug can be connected on the bent axle that the reciprocating motion of piston is converted into rotary motion by connecting rod with what is arranged in crankshaft room, the confession Electric system is used to confess electricity consumption when starting that can outwards power again, it to include generator, and the crankshaft two end is connected to Generator, bent axle is configured in the horizontal direction, and bent axle and camshaft link, and bent axle is parallel with camshaft or greatly to abreast configuring, Crank arm and drive gear are configured with bent axle, camshaft does not contact configuration, piston and song with the crank arm interference of bent axle configuration Axle is converted into rotary motion by even pavilion connection, the bent axle that reciprocates through of piston, and bent axle is by drive gear and camshaft Being engaged by drive gear for upper setting, drives and is rotated by drive gear；The left end of combustion chamber is provided with supply mixed gas in cylinder One or two air entry and be opened and closed one or two inlet valve of the air entry, the right-hand member of combustion chamber is provided with exhaust The air bleeding valve of mouth and the opening and closing exhaust outlet；Be formed between the cylinder head and cylinder body by bent axle room with cylinder head cover in shake The access of arm room connection, is plugged with push rod and is arranged at the tappet of the end of push rod in the access of both sides, wherein side is endured The leading section of bar abuts in crankshaft room with the air inlet cam of camshaft, the other end of push rod be arranged at shaking for side in rocking arm room Arm is abutted, and the rocking arm of the side is connected by valve spring with inlet valve, and the inlet valve exerted a force upward by valve spring is driven using rocking arm, is inhaled Gas port is closed using inlet valve；The leading section of opposite side tappet abuts in crankshaft room with the exhaust cam of camshaft, push rod it is another One end abuts with the rocking arm for being arranged at opposite side in rocking arm room, and the rocking arm of the side is connected by valve spring with air bleeding valve, using rocking arm The air bleeding valve that driving is exerted a force upwards all the time by valve spring, exhaust outlet is opened and closed using air bleeding valve.

Preferably, being provided with balance element in described bent axle room, balance element is engaged by gear with bent axle, and balance element can Reduce vibration.

Preferably, the both sides side face of the cylinder body is provided with water channel, the inner peripheral surface of cylinder body is provided with cylinder sleeve, in cylinder body Piston can slide relative to cylinder sleeve.

Preferably, be provided with cooling pipe around described cylinder, the water inlet of generator, delivery port and water tank connect Connect, be formed with cooling system, prevent internal temperature too high by cooling system and steeply rise whole generating engine temperature Prevent piston and cylinder locking.

Preferably, being provided with atomising device in described oil chamber, Quantum Rings injector head is installed on atomising device, Gone out the oil for converting little prescription by quantum injector head atomized spray, in crankshaft room's inner direct, touch camshaft, the cylinder of bent axle The parts such as body, cylinder head and cylinder head cover, thus lubricate the parts such as bent axle, camshaft, cylinder body and rocking arm；Oil chamber left side is provided with Plus lubrication hydraulic fluid port, can obtain fine lubricant effect using lubricating oil.

Preferably, be provided with described air entry control fuel oil and fuel gas alternative burning tubing valve, waste gas again Circulatory system valve, burning tubing valve, exhaust gas recirculation system valve door are connected with electric-control system；After electric control system controls bent axle The sensor of position, controls CMPS Camshaft Position Sensor, controls cooling-water temperature sensor, controls TPS, controls idle Speed control valve, controls mass air flow sensor, controls lambda sensor, controls ignition coil, controls electrical fuel injector.

Preferably, the generating engine uses gaseous fuel, bio-fuel, liquid fuel (gasoline), Geometric compression Than being gas-powered for more than 8.3；Geometrical compression ratio is more than 4.3；For gasoline combustion work, arranged by air entry Valve controlling fuel oil and combustion gas conversion, master control controlled by electric-control system conversion.It is more than 8.3 in geometrical compression ratio, With gas-powered, inlet valve close to valve-lift amount for the inlet valve of the time point definition of the position of 1.02mm valve closing when It is set at quarter after stop to stop；Geometrical compression ratio more than 4.3, with Fuel Petroleum work, the inlet valve is closed It is set in after bottom dead center to top dead centre to valve closing moment of the valve-lift amount for the inlet valve of the time point definition of the position of 1.25mm Scope；When described gas-powered, the valve closing moment of inlet valve is set in 44 ° -75 ° by the crank angle from lower dead center In the range of；When Fuel Petroleum works, the valve closing moment of inlet valve, my crank angle from lower dead center was set in 45 ° -76 ° In the range of.

Beneficial effects of the present invention：This generating engine, its parts are few, small volume, and quality mitigates, and discharge capacity is little, is easy to Carry, and low oil, gas consumption, low noise, the no matter geometrical compression ratio that is easy to carry is high or low starting torque when can suppress to start Increase, and suppress blast in silencer.

Description of the drawings

With reference to the accompanying drawings and detailed description describing the present invention in detail；

Fig. 1 is the structural representation of inventive engine longitudinal section；

When Fig. 2 blocks cylinder head cover, cylinder head, cylinder body and crankshaft room for the present invention, the structure of generator lube oil room atomising device is shown It is intended to；

Fig. 3 is the structural representation of electric-control system of the present invention and cooling system；

Fig. 4 is the structural representation that mixed gas of the present invention enter fuel chamber；

Fig. 5 is the structural representation that mixed gas of the present invention go out fuel chamber；

Fig. 6 is the structural representation of the switching time of inlet valve of the present invention；

Fig. 7 is the curve map of inlet valve of the present invention and exhaust valve lift amount crank angle；

Fig. 8 is the graph of relation of generating engine rotating speed of the present invention and inhaled air volume；

Fig. 9 is the graph of relation of generating engine rotating speed of the present invention and moment of torsion；

Figure 10 is the graph of relation of generating engine rotating speed of the present invention and fuel.

Specific embodiment

Technological means, creation characteristic, reached purpose and effect to make present invention realization is easy to understand, with reference to Specific embodiment, is expanded on further the present invention.

Reference picture 1-10, this specific embodiment is employed the following technical solutions：The stroke Miniature water cold oil gas of monotype four is sent out Electric engine, including cylinder, combustion chamber 1, crankshaft room 2, oil chamber 3, rocker arm chamber 4 and electric power system, the rear portion of cylinder is arranged Combuster 1, the top of cylinder is provided with rocker arm chamber 4, and the bottom of cylinder is provided with crankshaft room 2, and the bottom of crankshaft room 2 is lubrication Grease chamber 3；The cylinder includes cylinder body 6 and the cylinder head 5 installed in the upper end of cylinder body 6, and the upper end of cylinder head 5 is provided with cylinder head cover 11, the bottom of cylinder body 6 is provided with crankshaft room 2, and the both sides side face of cylinder body 6 is provided with water channel 29, and the inner peripheral surface of cylinder body 6 is provided with cylinder Set 30, the piston 7 in cylinder body 6 can in complex way be moved relative to cylinder sleeve 30, and the lower section of piston 7 is provided with connecting rod 8, piston 7 The bent axle 9 that the reciprocating motion of piston 7 is converted into rotary motion can be connected with what is arranged in crankshaft room 2 by connecting rod 8, it is described Electric power system is used to confess electricity consumption when starting, can outwards power again that it to include generator 10, the two ends of the bent axle 9 difference Be connected with generator 10, bent axle 9 is configured in the horizontal direction, and bent axle 9 links with camshaft 12, bent axle 9 it is parallel with camshaft 12 or Greatly to abreast configuring, crank arm 13 and drive gear 14, the crank that camshaft 12 is not configured with bent axle 9 are configured with bent axle 9 The interference contact configuration of arm 13, piston 7 is connected with bent axle 9 by even pavilion 8, and the bent axle 9 that reciprocates through of piston 7 is converted into rotation Motion, bent axle 9 is engaged with what is arranged on camshaft 12 by drive gear 14 by drive gear 15, and drive is revolved by drive gear 15 Turn；The left end of combustion chamber 1 is provided with one or two air entry 21 of supply mixed gas and the opening and closing air entry in cylinder 21 one or two inlet valve 22, the right-hand member of combustion chamber 1 is provided with exhaust outlet 23 and is opened and closed the exhaust of the exhaust outlet 23 Valve 24.

The connection that will be connected with the rocker arm chamber 4 in cylinder head cover 11 in crankshaft room 2 is formed between the cylinder head 5 and cylinder body 6 Road 16, is plugged with push rod 17 and is arranged at the tappet 18 of the end of push rod 17, wherein side tappet 18 in both sides access 16 Leading section abut with the air inlet cam 19 of camshaft 12 in crankshaft room 2, the other end of push rod 17 be arranged at one in rocker arm chamber 4 The rocking arm 20 of side is abutted, and the rocking arm 20 of the side is connected by valve spring 25 with inlet valve 22, using rocking arm 20 drive from valve spring 25 to The inlet valve 22 of top force, air entry 21 is closed using inlet valve 22；The leading section of opposite side tappet 18 crankshaft room 2 with it is convex The exhaust cam 26 of wheel shaft 12 is abutted, and the other end of push rod 17 is abutted with the rocking arm 20 for being arranged at opposite side in rocker arm chamber 4, the side Rocking arm 20 be connected with air bleeding valve 24 by valve spring 25, the air bleeding valve exerted a force upwards all the time by valve spring 25 is driven using rocking arm 20 24, exhaust outlet 23 is opened and closed using air bleeding valve 24.

It should be noted that being provided with balance element 27 in described crankshaft room 2, balance element 27 is by gear 28 and bent axle 9 Engagement, balance element 27 can reduce vibration.

It should be noted that be provided with cooling pipe 31 around described cylinder, the water pump on engine is on front side of it The water inlet and delivery port of water tank is connected with rubber tube, and for cooling down engine, temperature setting has temperature control to open at 60 DEG C, on water tank Close, water inlet, the delivery port of generator are also connected with water tank, are formed with cooling system.

The rear of engine arranges silencer, and the exhaust from engine is discharged through silencer, and silencer is arranged Filter tank, fuel tank is connected with the net instrument of air via filter tank, is attracted in filter tank from the gasoline vapor of fuel tank, fuel tank Middle storage is rack-mount as the gasoline supplied to the fuel of engine, in this generator, opens key door, rises Dynamic kick-starter generator rotary electrification simultaneously, bent axle rotation, engine starts, then starts the power generation operation of generator.

It should be noted that being provided with atomising device 32 in described oil chamber 3, quantum is installed on atomising device 32 Ring injector head 33, the oil for converting little prescription is gone out by the atomized spray of quantum injector head 22, in the inner direct of crankshaft room 2, is touched The parts such as the camshaft 12 of bent axle 9, cylinder body 6, cylinder head 5 and cylinder head cover 11, thus lubricate bent axle 9, camshaft 12, cylinder body 6 and shake The grade part of arm 20；The left side of oil chamber 3 is provided with plus lubrication hydraulic fluid port 34, and using lubricating oil fine lubricant effect can be obtained.

Additionally, be provided with described air entry 21 control fuel oil and fuel gas alternative burning tubing valve 35, waste gas again Circulatory system valve 36, burning tubing valve 35, exhaust gas recirculation system valve door 36 are connected with electric control system ECU；Electric-control system The sensor of position, controls CMPS Camshaft Position Sensor after ECU control bent axles, controls cooling-water temperature sensor, controls throttle position Sensor, controls IAC, controls mass air flow sensor, controls lambda sensor, controls ignition coil, controls electrical fuel injector.

When in use, the piston 7 in cylinder is moved back and forth this specific embodiment, when piston 7 is moved downward, is inhaled Pneumatic module is opened, and sucks mixed gas, closes gas deflation assembly, and getter assembly is closed when piston 7 is reciprocated to into bottom, works as work When plug 7 is moved back and forth upwards, the mixed gas in compression cylinder, when piston 7 moves to top, combustion chamber 1 is in air entry 21 Under cooperation with exhaust outlet 23, the is rapidly heated piston 7 that expand against rapidly of gas is moved downward, the piston 7 for and so on moving Be converted into the bent axle 9 of rotary motion, bent axle 9 in motion process by atomising device 32 in oil chamber by lubricant mist instrument, So as to lubricating oil is converted to into less molecule, quantum injector head 33 is distributed to the oil molecule of atomization in space hence into arriving Good lubricant effect is played in each parts, is prevented internal temperature too high by cooling system and is made whole generating engine Temperature steeply rises prevents piston and cylinder locking；Bent axle 9 drives gear power generation machine rotation forces push rod 17 with movement machine rotation, enters Fuel tap door can put into lubricating oil in oil chamber, supplement to increase the efficiency of work in time, and engine is in any position Lubricating system lubricates can all parts during work, and to controlling main parts size crankshaft room and the bent axle of flow of lubrication Structure simplified, alleviate engine quality.

Compared with multicylinder engine, piston is few with the slide area of cylinder if same displacement for this specific embodiment, so Friction loss is few, and lubricating oil atomization is made lubricating oil be converted into less molecule, quantum spray by the atomising device arranged in lubricating chamber Penetrate head the oil molecule of atomization is distributed in space hence into good lubricant effect is played in each parts, so as to reduce The structure of the main parts size of control flow of lubrication, crankshaft room and bent axle is simplified, and mitigates engine quality, is lifted and is sent out The thermal efficiency of motivation, the increase of moment of torsion when also effectively inhibiting startup.

This specific embodiment can use gaseous fuel, could be used that the liquid fuels such as gasoline, gaseous fuel and gasoline Compare that often low heat valve is little Deng liquid fuel, the output under identical capacity it is low, in order to improve output, require to improve pressure Contracting is susceptible to the abnormal combustion of pinking than still same with during liquid fuel motor, can be pressed down according to this generating engine Abnormal combustion processed simultaneously can keep height output, so this device had not only been adapted to gaseous fuel but also had been adapted to the liquid fuels such as gasoline.

In addition, this generating engine with vehicle-mounted generating, mobile charging, the Jing when generating electricity is normal for the engine of generating engine Use under 3000-3600rpm, if the compression ratio Gao Ze of reality is in the low middle rotational domain till conventional high rotational domain In, be susceptible to pinking, up to the present, have such technology such as under the engine conditions of the valve of air-breathing two use variable Valve system, according to the rotating speed of engine the shutoff valve moment of two inlet valves is controlled respectively, and adjustment compression ratio suppresses pinking to occur In this case the control parts that complicate increase.Contrast this programme is lower dead center at the valve closing moment using inlet valve, is had Mixed gas return to the amount of the upstream of inlet valve in the engine of one or two inlet valve, because engine speed is different not Together, i.e. the bigger mixed gas flow velocity of engine speed is bigger, so the resistance of the mixed gas of the upstream to return to inlet valve Power increases, and the time shortening from piston in the time point closed to inlet valve of time point of lower dead center, so gaseous mixture Body is difficult in return to the upstream of inlet valve.This means the actual pressure that low middle rotational domain can be reduced for high rotational domain Contracting ratio, and the actual compression ratio of high rotational domain do not reduce, thus by this device with one or two inlet valve Generating engine is used to that in the case of generating electricity manufacturing cost can be suppressed, can suppress in the rotation in low pinking and Good thermal effect and output are obtained in that in the high rotational domain of 3000-5000rpm, and the good situation of lubricating chamber's effect is issued Electric engine has better thermal effect and output, so this device has good generating with output.

Geometrical compression ratio is more than 8.3, is gas-powered, and geometrical compression ratio is more than 4.3；For gasoline combustion work Work, the Valve controlling fuel oil arranged by air entry 21 and the conversion of combustion gas, master control is controlled conversion by electric control system ECU. Be more than 8.3 in geometrical compression ratio, with gas-powered, inlet valve 22 close to valve-lift amount for the position of 1.02mm when Between put definition valve closing moment of inlet valve be set in after stop to stop, closed to valve-lift amount with inlet valve and be Defining valve closing moment of inlet valve, its reason is position of the valve-lift amount closer to 0mm to the time point of the position of 1.02mm, The variable of the lift of a valve is less, it is difficult to correctly determine the crank angle of the position；Geometrical compression ratio more than 4.3, with Fuel Petroleum work Make, the inlet valve 22 closes the valve closing moment setting of the inlet valve defined for the time point of the position of 1.25mm to valve-lift amount After bottom dead center to the scope of top dead centre.

Inlet valve also opens after lower dead center, so the indoor mixed gas of the burning for being temporarily inhaled into cylinder, return To the upstream of inlet valve, even if therefore geometrical compression ratio is up to more than 8.3, actual compression ratio is also low than geometrical compression ratio, Then actual compression pressure is not high, can either obtain high expansion ratio, therefore, it is possible to improve the thermal efficiency of generating engine, and Can suppress using hand, from double actuating apparatus starts when moment of torsion increase, additional mixing gas not to exhaust tube side discharge, and It is to the release of air-breathing tube side, it is possible to suppressing blast, working condition during generating engine gas as fuel, institute in silencer Working condition when using gasoline for the fuel is stated, even if geometrical compression ratio is up to more than 4.3, actual compression ratio is also than several compression ratios Low, its described content is identical as working condition during fuel with gas.

The inlet valve open and close valve moment sets as shown in Figure 6, inlet valve slightly above opening in top dead centre, stops lower Point is closed, and the closing for inlet valve that the time point that the position to valve-lift amount as 1.02mm is closed with inlet valve is defined is set constantly After bottom dead center to top dead centre, even during crank angle position 0 from lower dead center, the valve closing moment is set in 0 ° of ＜ In the range of 0 180 ° of ＜, the valve closing moment is preferably set to 44 °≤0≤75 ° (using gaseous fuel), lift amount position 1.25mm's The time point definition of position, the valve closing moment is preferably set to 45 °≤0≤76 ° (using liquid gasoline fuel)；If inlet valve The shutoff valve moment can be appropriate in less than 75 ° of scope, then more than 44 ° based on the crank angle from lower dead center reduction pressure Contracting ratio, it is possible to improving the generating engine thermal efficiency, and can suppress the increase of moment of torsion when starting.

Fig. 8 represents the mixed gas of alternative fuel and air, when inlet valve is closed, the knot of the air capacity being drawn in cylinder Really, the bigger air of engine speed is difficult in return to the upstream of inlet valve, therefore inhaled air volume increases；Compare suction in addition empty Tolerance, then in the low middle rotation of engine speed compared with comparative example, engine is less in 3200rpm reversions, in high rotating speed In with than compared with less favorable, engine is more.

With reference to Fig. 9 comparison engine moments of torsion when engine speed is low compared with comparative example, engine is less, but with 3000rpm is inverted, and engine torque is big compared with comparative example in high rotating speed.

Compare specific fuel consumption with reference to Figure 10, when from engine speed as little as high rotating speed, compared with comparative example, engine It is little, poor bigger between the two more to high rotating speed, fuel good, the high working efficiency of engine, energy-conservation compared with comparative example.

Experimental result from more than, according to engine, engine speed is bigger, and mixed gas are difficult in return to air-breathing Valve, therefore, can suppress pinking in slow-speed of revolution rotation, and in rotating speed rotation, can obtain the good thermal efficiency, energy-conservation with Larger output (moment of torsion).

In addition in the above-described embodiment, the explanation for the situation that gasoline is used as fuel being carried out, but fuel also may be used To be the gaseous fuels such as gas (combustion gas), this generating engine can both use gaseous fuel, it is also possible to liquid fuel (gasoline), Compression ratio is improved simultaneously, can suppress abnormal combustion, and can keep height output, so generating engine, i.e., suitable for liquid Fluid fuel (gasoline), the generating engine for being adapted to gaseous fuel.

The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification this The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent thereof.

Claims (8)

1. the stroke Miniature water cold oil gas generating engine of monotype four, it is characterised in that including cylinder, combustion chamber (1), crankshaft room (2), oil chamber (3), rocker arm chamber (4) and electric power system, the rear portion of cylinder arranges combuster (1), and the top of cylinder is arranged The bottom for having rocker arm chamber (4), cylinder is provided with crankshaft room (2), and the bottom of crankshaft room (2) is oil chamber (3)；The cylinder bag Cylinder body (6) and the cylinder head (5) installed in cylinder body (6) upper end are included, cylinder head (5) upper end is provided with cylinder head cover (11), cylinder The bottom of body (6) is provided with crankshaft room (2), and the piston (7) that can be moved in complex way, piston (7) are provided with cylinder body (6) Lower section is provided with connecting rod (8), and piston (7) can be by the reciprocating motion of piston (7) by what is arranged in connecting rod (8) and crankshaft room (2) The bent axle (9) for being converted into rotary motion is connected, and the electric power system is used to confess electricity consumption when starting, and can outwards power again, It includes generator (10), and bent axle (9) two ends are connected to generator (10), bent axle (9) be equally configured in water Square to camshaft (12) linkage, be configured with crank arm (13) and drive gear (14) on bent axle (9), bent axle (9) is by driving Moving gear (14) is engaged with what is arranged on camshaft (12) by drive gear (15)；The left end of combustion chamber (1) be provided with one or Two air entries (21) and one or two inlet valve (22) of the opening and closing air entry (21), the right-hand member of combustion chamber (1) sets It is equipped with exhaust outlet (23) and is opened and closed the air bleeding valve (24) of the exhaust outlet (23)；

It is formed between the cylinder head (5) and cylinder body (6) and will connects with the rocker arm chamber (4) in cylinder head cover (11) in crankshaft room (2) Access (16), push rod (17) is plugged with both sides access (16) and the tappet of the end of push rod (17) is arranged at (18), wherein air inlet cam (19) of the leading section of side tappet (18) in crankshaft room (2) with camshaft (12) is abutted, push rod (17) the other end is abutted with the rocking arm (20) for being arranged at the interior side of rocker arm chamber (4), and the rocking arm (20) of the side is by valve spring (25) It is connected with inlet valve (22), the inlet valve (22) exerted a force upward by valve spring (25), air entry (21) is driven using rocking arm (20) Closed using inlet valve (22)；The leading section of opposite side tappet (18) is in crankshaft room (2) and the exhaust cam of camshaft (12) (26) abut, the other end of push rod (17) is abutted with the rocking arm (20) for being arranged at the interior opposite side of rocker arm chamber (4), the rocking arm of the side (20) it is connected with air bleeding valve (24) by valve spring (25), the exhaust exerted a force upwards all the time by valve spring (25) is driven using rocking arm (20) Valve (24), exhaust outlet (23) is opened and closed using air bleeding valve (24).

2. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that described The balance element (27) for being reduced vibration is set in crankshaft room (2), and balance element (27) is engaged by gear (28) with bent axle (9).

3. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that the cylinder The both sides side face of body (6) is provided with water channel (29), and the inner peripheral surface of cylinder body (6) is provided with cylinder sleeve (30), and piston (7) is slidably arranged in In cylinder sleeve (30).

4. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that described It is provided with cooling pipe (31) around cylinder, the water inlet of generator, delivery port and water tank connection are formed with cooling system, lead to Supercooling system prevents internal temperature too high and steeply rising whole generating engine temperature prevents piston and cylinder locking.

5. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that described Atomising device (32) is provided with oil chamber (3), Quantum Rings injector head (33) is installed on atomising device (32), sprayed by quantum Penetrate head (33) atomized spray and go out the oil for converting little prescription, in crankshaft room (2) inner direct, touch the camshaft of bent axle (9) (12), the part such as cylinder body (6), cylinder head (5) and cylinder head cover (11), thus lubricates bent axle (9), camshaft (12), cylinder body (6) and shakes The parts such as arm (20)；Oil chamber (3) left side is provided with plus lubrication hydraulic fluid port (34), and using lubricating oil lubrication effect very well can be obtained Really.

6. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that described Air entry (21) place is provided with burning tubing valve (35), the exhaust gas recirculation system valve door of control fuel oil and fuel gas alternative (36), burning tubing valve (35), exhaust gas recirculation system valve door (36) are connected with electric-control system (ECU).

7. the stroke Miniature water cold oil gas generating engine of monotype according to claim 1 four, it is characterised in that described Combustion chamber (1) is more than 8.3 using gaseous fuel, bio-fuel or liquid fuel (gasoline), geometrical compression ratio, is gaseous fuel Work；Geometrical compression ratio is more than 4.3；For gasoline combustion work, the Valve controlling fuel oil arranged by air entry and combustion gas Conversion, master control is controlled conversion by electric-control system；It is more than 8.3 in geometrical compression ratio, with gas-powered, inlet valve pass The valve closing moment for closing the inlet valve defined for the time point of the position of 1.02mm to valve-lift amount is set in after stop to stop In the range of；Geometrical compression ratio more than 4.3, with Fuel Petroleum work, the inlet valve is closed to the position that valve-lift amount is 1.25mm The valve closing moment of the inlet valve of the time point definition put is set in after bottom dead center to the scope of top dead centre.

8. the stroke Miniature water cold oil gas generating engine of monotype according to claim 7 four, it is characterised in that described When gas-powered, the valve closing moment of inlet valve is set in the range of 44 ° -75 ° by the crank angle from lower dead center；Vapour When oil fuel works, the valve closing moment of inlet valve, my crank angle from lower dead center was set in the range of 45 ° -76 °.