CN104005846A - Fuel-selectable piston type two-travel engine - Google Patents
Fuel-selectable piston type two-travel engine Download PDFInfo
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- CN104005846A CN104005846A CN201310068124.9A CN201310068124A CN104005846A CN 104005846 A CN104005846 A CN 104005846A CN 201310068124 A CN201310068124 A CN 201310068124A CN 104005846 A CN104005846 A CN 104005846A
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Abstract
The invention discloses a fuel-selectable piston type two-travel engine, which integrates the advantages of continuous combustion of a gas turbine, high air tightness of a four-travel piston type engine piston unit and an air cylinder as well as the advantages of a fuel direct-injection system, a waste gas turbine dual-stage piston boosting device and an electric boosting device, is applied to a novel engine adopting the piston type two-travel acting way of acting while charging air and exhausting waste gas, and overcomes the defects of non-uniform running and combustion of single fuel within limited time in a four-travel piston type engine. The fuel-selectable piston type two-travel engine has the function of extending the fuel application, and is twice the power of a piston type four-travel engine.
Description
Affiliated technical field
The present invention relates to a kind of new work engine, especially compare with four-stroke engine technology, the optional fuel piston type two-stroke engine that bulking value equates is than the high twice of power of four-stroke piston formula motor, this motor has not only overcome the shortcomings such as the thermal efficiency is low, but also overcome the discontinuous running of four-stroke piston formula motor, burning in the time limiting, limit the narrow limitation of single-fuel, the thermal efficiency that this is motor improves, energy-saving and emission-reduction improve, widen fuel uses kind that Feasibility Solution is provided.
Background technique
1. the four-stroke piston formula motor of prior art all needs to have:
1) overcome exhaust, air inlet, compress this three interruption processes, just can complete an acting process, the discontinuity of acting and power have loss on air inlet, compression two strokes, are prior art four-stroke engine unsurmountable defects always;
2) in addition, four-stroke engine all must burn, limit the narrow limitation of single-fuel in limiting time;
2. the gas turbine of prior art has:
1) be from aerodynamics angle: (gas tightness between turbine blade and active chamber wall is poor for gas compressor and turbine, and causing the loss of combustion gas too large) efficiency is too low, be only 65% and 70%, even turbine merit is not enough to meet power input to compressor needs.
2) be from metallurgy angle: cannot provide can be more than fuel gas temperature 1300-1700 DEG C the heat-resisting turbine alloy of reliably working.
These two kinds of motors are to have caused environmental pollution large, the power character of the large and motor of the loss of the energy in the time of low-speed running, the unsurmountable defect such as less economical.
Summary of the invention
The multiple advantage of utilizing gas tightness that gas turbine continuous burning and four-stroke piston formula engine piston group and cylinder had and fuel directly to spray system and exhaust gas turbine two-diameter piston formula gas compressor supercharging device and electric supercharging device, be used in the piston type two stroke mode of work-doing that only have air inlet acting and combustion gas, name as optional fuel piston type two-stroke engine.Thereby following Feasibility Solution is proposed.
The present invention wants technical solution scheme to be: in optional fuel piston type two-stroke engine, body mechanism comprises firing chamber, cylinder block, cylinder, crankcase, intake manifold, gas exhaust manifold, the parts such as outlet pipe, linkage mechanism comprises piston group, connection rod set, bent axle group, output shaft, spark plug etc. parts, distribution device comprises valve group, the type of valve group, the deployment of valve group, the number of valve and arrangement mode, cooling system, lubricating system, and deployment between them, arrangement mode, annexation and basic parameter, therefore because of no longer narration identical with four-stroke piston formula motor, camshaft, cam set, exhaust gas turbine two-diameter piston formula supercharging device, the bent axle of exhaust gas turbine two-diameter piston formula supercharging device, micro computer, motor, magnetic clutch, ignition system, fuel oil direct-injection system, the crankshaft position sensor of ignition system fuel oil direct-injection system, wherein, bent axle group, the crankshaft position sensor of ignition system fuel oil direct-injection system, the bent axle of exhaust gas turbine two-diameter piston formula supercharging device, valve group is named as bent axle I, bent axle I position transducer, bent axle II, intake valve and exhaust valve,
Because piston type four-stroke engine is changed system into optional fuel piston type two-stroke engine, so change system into the flexuose disc signal rotor number of teeth of two multiples on the flexuose disc signal rotor number of teeth basis of the bent axle I position transducer of former piston type four-stroke engine ignition system direct fuel injection system, so optional fuel piston type two-stroke engine ignition system, the igniting number of times of fuel injection system, oil spout number of times also double than the igniting number of times of piston type four-stroke engine ignition system, fuel injection system, oil spout number of times;
Four-journey distribution device is changed system into two stroke distribution devices, its working procedure is that bent axle I often turns two weeks and completes two work cycle, and intake valve, exhaust valve all respectively opens and closes twice during this period, therefore, bent axle I often turns two weeks, camshaft only circles, be that velocity ratio between them is 2: 1, intake valve exhaust valve cam parts with respect to each cylinder on camshaft increase by two cams again by life size intake valve exhaust valve cam, and make the angle between an inlet valve cam and former inlet valve cam all differ 180 degree, angle between another exhaust valve cam and former exhaust valve cam all differs 180 degree.
In the distribution device of optional fuel piston type two-stroke engine, port timing is that the opening and closing of intake valve, exhaust valve are controlled with bent axle I angle of swing, claims the port timing of optional fuel piston type two-stroke engine; If optional fuel piston type two-stroke engine is rotated in the forward, the time that bent axle I opens for intake valve from zero degree to one 180 degree, now for piston is the time of air inlet working stroke from top dead center to lower dead center, be rotated in the forward again, bent axle I is exhaust valve opening time from 180 degree to 360 deg, now for piston scavenges time of stroke from lower dead center to top dead center.
In optional fuel piston type two-stroke engine, the firing chamber of optional fuel piston type two-stroke engine, exhaust valve in valve, the relief opening of gas exhaust manifold, air chamber one end of exhaust gas turbine two-diameter piston formula supercharging device, the air chamber the other end of exhaust gas turbine two-diameter piston formula supercharging device, outlet pipe order is communicated with, and there is turbine blade the inside of the air chamber of exhaust gas turbine two-diameter piston formula supercharging device, and the axle of turbine blade connects the bent axle II of exhaust gas turbine two-diameter piston formula supercharging device, air-strainer, fresh air inlet, one end of the low-pressure cylinder of exhaust gas turbine two-diameter piston formula supercharging device, the other end of the low-pressure cylinder of exhaust gas turbine two-diameter piston formula supercharging device, one end of cooler, the other end of cooler, one end of high pressure cylinder, the other end of high pressure cylinder, high-pressure air import, one end of gas receiver, the other end of gas receiver, intake manifold one end of optional fuel piston type two-stroke engine, the intake manifold the other end, intake valve in valve, the firing chamber order of optional fuel piston type two-stroke engine is communicated with, and has bleed valve and closure on gas receiver, and motor is connected with bent axle II by magnetic clutch.
The working principle of optional fuel two stroke piston formula motors:
When optional fuel piston type two-stroke engine starts, first by switch activated this motor and motor, motor by microcomputerized control after motor start-up is connected with bent axle II with magnetic clutch, drive the work of exhaust gas turbine two-diameter piston formula supercharging device, high pressure fresh air temperature after supercharging is elevated between 100 to 200 degree, pressure is 3 barometric pressure left and right, now optional fuel two-stroke engine piston is at top dead center, intake valve is just in time opened, then high pressure fresh air is sent into firing chamber through intake valve, meanwhile fuel also enters firing chamber by oil nozzle, after mixing with the fresh air of High Temperature High Pressure, burn through plug ignition, now temperature can reach 2000 degree left and right detonation gases, promote piston and do work, until piston arrives after bottom dead center, exhaust valve is opened, start combustion gas, the waste gas that gas exhaust manifold is discharged, through the air chamber of exhaust gas turbine two-diameter piston formula supercharging device, promote turbine blade, make the work of exhaust gas turbine two-diameter piston formula supercharging device, then through outlet pipe combustion gas, continuous doing work moves in circles.After the normal work of optional fuel piston type two-stroke engine, motor quits work automatically, magnetic clutch makes motor separate with bent axle II is automatic, and the waste gas of then discharging by gas exhaust manifold drives waste gas to promote the work of exhaust gas turbine two-diameter piston formula supercharging device.Motor also has in the time that this motor need increase power in addition, or this motor function that automatic actuating motor and magnetic clutch are combined with the bent axle II of exhaust gas turbine two-diameter piston formula supercharging device need accelerate time, in the time that this motor reaches required drive, or when required rotating speed, motor and electric clutch quit work automatically.Motor and magnetic clutch major function through microcomputerized control are the pressurized energy that can provide instantaneous, the one, having improved this motor has sensitiveer responsiveness, the 2nd, guarantee the steady of whole pressurization, the 3rd, can make this motor in the situation that of various load, all obtain optimal representation.Compare with four-stroke engine technology, manufacture the optional fuel piston type two-stroke engine of equal volume, the power of optional fuel piston type two-stroke engine equals the twice of four-stroke engine, and power is more powerful.
Optional fuel piston type two-stroke engine is in the time running up, and the waste gas super charge pressure after acting can not be too large, if super charge is too large, and during higher than 15 barometric pressure, the bleed valve in gas receiver can automatic deflation, the generation of Accident prevention.
Because the technology of the continuous burning of gas turbine will be used in optional fuel piston type two-stroke engine, so optional natural gas, or coal-seam gas, or methanol gasoline, or diesel oil, or any fuel such as kerosene is as the fuel of optional fuel piston type two-stroke engine, or several fuel combination is as the fuel of optional fuel piston type two-stroke engine.
That reciprocal compressor is mainly to future developments such as large capacity, high pressure, low noise, high efficiency, high reliability because at petrochemical field with two-diameter piston formula gas compressor; Continually develop the Novel air valve moving under variable working condition condition, improve the air valve life-span; In product specification, applied thermodynamics, kinetic theory, predict the performance of compressor under actual conditions by comprehensive simulation; The electromechanical integration of strengthening compressor, adopts computer controlled automatic, realizes Optimization of Energy Saving operation and on-line execute.
Reciprocating compressor, in power field, piston compressor occupies staple market at present.But along with the raising that people require aspects such as Environmental Conditions and energy consumption, environmental protection, screw rod and scroll air compressor start to occupy certain market.
The invention has the beneficial effects as follows, the optional fuel piston type two-stroke engine of the multiple advantage of the technology such as gas tightness, direct fuel injection system, exhaust gas turbine two-diameter piston formula supercharging device and the electric supercharging device that comprehensive gas turbine continuous burning, four-stroke piston formula engine piston group and cylinder have had, there is ultralow exhaust emissions, sustained combustion, atmospheric combustion (air fuel ratio is large), without sealing and the piston-engined advantage without pressure leakage, make it without complicated ignition system, can under 1%-100% load, work and increase engine thermal efficiency.
The application of technique, four-journey cylinder piston type motor, 720 ° of crankshaft rotating are done merit one time.Optional fuel piston type two-stroke engine, 720 ° of crankshaft rotating are done secondary merit.At one time, compare with regard to its working stroke, whole many one times of optional fuel piston type two stroke ratio four-journeys, if the volume and weight of optional fuel piston type two-stroke engine equates with four-stroke engine, the power of optional fuel piston type two-stroke engine equals the twice of four-stroke engine, and power is more powerful.
Optional fuel piston type two stroke piston formula motors have the advantage such as feature and continuous burning acting of optional working medium fuel combustion acting, not only overcome the discontinuous running problem of four-stroke engine and burning and the restriction problem of combustion condition in the time limiting, and overcome the narrow limitation that can only limit a kind of fuel of use, especially adopt direct fuel injection technology, exhaust gas turbine two-diameter piston formula supercharging technology and electronic supercharging technology.The thermal efficiency that this is motor improves, energy-saving and emission-reduction improve, widen fuel uses kind that Feasibility Solution is provided.
Optional fuel two stroke piston formula motors not only can be used for motor vehicle, also can be used for steamer and various power generating equipments etc.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the port timing schematic diagram of the optional fuel piston type of the present invention two-stroke engine.
Fig. 2 is the optional fuel piston type of the present invention two-stroke engine example structure schematic diagram.
1. intake valves in figure, 2. exhaust valve, 3. cylinder, 4. piston, 5. connecting rod, 6. bent axle I, 7. air-strainer, 8. fresh air inlet, 9. low pressure cylinder, 10. cooler, 11. high-pressure air imports, 12. closures, 13. bleed valves, 14. gas receivers, 15. intake manifold, 16. valves, 17. gas exhaust manifolds, 18. air chambers, 19. outlet pipes, 20. turbine blades, 21. bent axle II, 22. motor, 23. high pressure cylinders, 24. magnetic clutchs.
Embodiment
In the optional fuel piston type two-stroke engine shown in Fig. 2, because piston type four-stroke engine is changed system into optional fuel piston type two-stroke engine, so change system into the flexuose disc signal rotor number of teeth of two multiples on the flexuose disc signal rotor number of teeth basis of bent axle I (6) position transducer shown in Fig. 1 of former piston type four-stroke engine ignition system direct fuel injection system, so optional fuel piston type two-stroke engine ignition system, the igniting number of times of fuel injection system, oil spout number of times is than the whole ignition system of piston type four-stroke engine, the igniting number of times of fuel injection system, oil spout number of times also doubles,
In the optional fuel piston type two-stroke engine shown in Fig. 2, four-journey distribution device is changed system into two stroke distribution devices, its working procedure is that the I of bent axle shown in Fig. 1 (6) often turns two weeks and completes two work cycle, and intake valve (1), exhaust valve (2) all respectively opens and closes twice during this period, therefore, bent axle I (6) often turns two weeks, camshaft only circles, be that velocity ratio between them is 2: 1, intake valve (1) exhaust valve (2) cam part with respect to each cylinder on camshaft increases by two cams again by life size intake valve (1) exhaust valve (2) cam, and make the angle between intake valve (1) cam and former intake valve (1) cam differ 180 degree, angle between another exhaust valve (2) cam and former exhaust valve (2) cam differs 180 degree,
In the distribution device of optional fuel piston type two-stroke engine shown in Fig. 1, port timing is that the opening and closing of intake valve (1), exhaust valve (2) are controlled with bent axle I (6) angle of swing, claims the port timing of optional fuel two-stroke engine;
If optional fuel piston type two-stroke engine is rotated in the forward, bent axle I (6) shown in Fig. 1 spends the time of opening for intake valve (1) from zero degree to one 180, it is now the time of piston (4) from top dead center to lower dead center air inlet workmanship stroke, as shown in a of Fig. 1, be rotated in the forward again, bent axle I (6) is that exhaust valve (2) is beaten the time from 180 degree to 360 deg, now for piston (4) scavenges time of stroke from lower dead center to top dead center, as the b of Fig. 1.
In optional fuel piston type two-stroke engine in Fig. 2, the firing chamber of optional fuel piston type two-stroke engine, the exhaust valve (2) of the inner Fig. 1 of valve (1), the relief opening of the gas exhaust manifold (17) of Fig. 2, air chamber (18) one end of exhaust gas turbine two-diameter piston formula supercharging device, air chamber (18) the other end of exhaust gas turbine two-diameter piston formula supercharging device, outlet pipe (19) order is communicated with, there is turbine blade (20) inside of the air chamber (18) of exhaust gas turbine two-diameter piston formula supercharging device, the axle of turbine blade (20) connects the bent axle II (21) of exhaust gas turbine two-diameter piston formula supercharging device, air-strainer (7), fresh air inlet (8), one end of the low-pressure cylinder (9) of exhaust gas turbine two-diameter piston formula supercharging device, the other end of the low-pressure cylinder (9) of exhaust gas turbine two-diameter piston formula supercharging device, one end of cooler (10), the other end of cooler (10), one end of high pressure cylinder (23), the other end of high pressure cylinder (23), high-pressure air import (11), one end of gas receiver (14), the other end of gas receiver (14), intake manifold (15) one end of optional fuel piston type two-stroke engine, intake manifold (15) the other end, the intake valve (1) of the inner Fig. 1 of valve (16), the firing chamber order of optional fuel piston type two-stroke engine is communicated with, on gas receiver (14), have bleed valve (13) and closure (12), motor (22) is connected with bent axle II (21) by magnetic clutch (24).
The working principle of optional fuel piston type two-stroke engine:
When optional fuel piston type two-stroke engine shown in Fig. 2 starts, first by switch activated this motor and motor (22), motor (22) is connected with bent axle II (21) with magnetic clutch (24) by the motor (22) of microcomputerized control after starting, drive the work of exhaust gas turbine two-diameter piston formula supercharging device, high pressure fresh air temperature after supercharging is elevated between 100 to 200 degree, pressure is 3 barometric pressure left and right, now the optional fuel two-stroke engine piston (4) shown in Fig. 1 is at top dead center, intake valve shown in Fig. 1 (1) is just in time opened, then high pressure fresh air is sent into firing chamber through intake valve (1), meanwhile fuel also enters firing chamber by oil nozzle, after mixing with the fresh air of High Temperature High Pressure, burn through plug ignition, now temperature can reach 2000 degree left and right detonation gases, promote piston (4) and do work, until piston (4) arrives after bottom dead center, exhaust valve shown in Fig. 1 (2) is opened, start combustion gas, the waste gas that gas exhaust manifold (17) is discharged, through the air chamber (18) of exhaust gas turbine two-diameter piston formula supercharging device, promote turbine blade (20), make the work of exhaust gas turbine two-diameter piston formula supercharging device, then through outlet pipe (19) combustion gas, continuous doing work moves in circles.After engine work, motor shown in Fig. 2 (22) quits work automatically, magnetic clutch (24) makes motor (22) automatically separate with bent axle II (21), and the waste gas of then discharging by gas exhaust manifold (17) promotes the work of exhaust gas turbine two-diameter piston formula supercharging device.Motor (22) also has in the time that this motor need increase power in addition, or this motor is need accelerate time, automatically the function of bent axle II (21) combination of actuating motor (22) and magnetic clutch (24) and exhaust gas turbine two-diameter piston formula supercharging device, in the time that this motor reaches required drive, or when required rotating speed, motor (22) and magnetic clutch (24) quit work automatically.Motor (22) and magnetic clutch (24) major function through microcomputerized control are the pressurized energy that can provide instantaneous, the one, having improved this motor has sensitiveer responsiveness, the 2nd, guarantee the steady of whole pressurization, the 3rd, can make this motor in the situation that of various load, all obtain optimal representation.Compare with four-stroke engine technology, manufacture the optional fuel piston type two-stroke engine of equal volume, the power of optional fuel piston type two-stroke engine equals the twice of four-stroke engine, and power is more powerful.
Optional fuel piston type two-stroke engine is in the time running up, waste gas super charge pressure after acting can not be too large, if super charge is too large, and during higher than 15 barometric pressure, bleed valve (13) meeting automatic deflation in gas receiver shown in Fig. 2 (14), to keep pressure not too big, the generation of Accident prevention.
Claims (4)
1. in optional fuel piston type two-stroke engine, body mechanism comprises firing chamber, cylinder block, cylinder, crankcase, intake manifold, gas exhaust manifold, outlet pipe etc. parts, linkage mechanism comprises piston group, connection rod set, bent axle group, output shaft, spark plug, high pressure direct injection fuel injection system etc. parts, distribution device comprises valve group, the type of valve group, the deployment of valve group, the number of valve and arrangement mode, cooling system, lubricating system, and deployment between them, arrangement mode, annexation and basic parameter, therefore because of no longer narration identical with four-stroke piston formula motor, camshaft, cam set, exhaust gas turbine two-diameter piston formula supercharging device, the bent axle of exhaust gas turbine two-diameter piston formula supercharging device, micro computer, motor (22), magnetic clutch (24), ignition system, fuel oil direct-injection system, the crankshaft position sensor of ignition system fuel oil direct-injection system, wherein, bent axle group, ignition system, the crankshaft position sensor of fuel oil direct-injection system, the bent axle of exhaust gas turbine two-diameter piston formula supercharging device, valve group is named into bent axle I (6), bent axle I (6) position transducer, bent axle II (21), intake valve (1) and exhaust valve (2), it is characterized in that: in optional fuel piston type two-stroke engine, because piston type four-stroke engine is changed system into optional fuel piston type two-stroke engine, so change system into the flexuose disc signal rotor number of teeth of two multiples on the flexuose disc signal rotor number of teeth basis of bent axle I (6) position transducer shown in Fig. 1 of former piston type four-stroke engine ignition system direct fuel injection system, so optional fuel piston type two-stroke engine ignition system, the igniting number of times of fuel injection system, oil spout number of times is than piston type four-stroke engine ignition system, the igniting number of times of fuel injection system, oil spout number of times also doubles,
In optional fuel piston type two-stroke engine, four-journey distribution device is changed system into two stroke distribution devices, its working procedure is that the I of bent axle shown in Fig. 1 (6) often turns two weeks and completes two work cycle, and intake valve (1), exhaust valve (2) all respectively opens and closes twice during this period, therefore, bent axle I (6) often turns two weeks, camshaft only circles, be that velocity ratio between them is 2: 1, intake valve (1) exhaust valve (2) cam part with respect to each cylinder on camshaft increases by two cams again by life size intake valve (1) exhaust valve (2) cam, and make the angle between intake valve (1) cam and former intake valve (1) cam all differ 180 degree, angle between another exhaust valve (2) cam and former exhaust valve (2) cam all differs 180 degree.
2. according in the distribution device of optional fuel piston type two-stroke engine claimed in claim 1, it is characterized in that: port timing is that the opening and closing of intake valve (1), exhaust valve (2) are controlled with bent axle I (6) angle of swing, claims the port timing of optional fuel piston type two-stroke engine; If optional fuel piston type two-stroke engine is rotated in the forward, the time that bent axle I (6) opens for intake valve from zero degree to one 180 degree, now for piston (4) is the time of air inlet working stroke from top dead center to lower dead center, be rotated in the forward again, bent axle I (6) is exhaust valve opening time from 180 degree to 360 deg, now for piston (4) scavenges time of stroke from lower dead center to top dead center.
3. according in the optional fuel piston type two-stroke engine described in claim 1 or 2, it is characterized in that: the firing chamber of optional fuel piston type two-stroke engine, the exhaust valve (2) that valve (16) is inner, the relief opening of gas exhaust manifold (17), air chamber (18) one end of exhaust gas turbine two-diameter piston formula supercharging device, air chamber (18) the other end of exhaust gas turbine two-diameter piston formula supercharging device, outlet pipe (19) order is communicated with, there is turbine blade (20) inside of the air chamber (18) of exhaust gas turbine two-diameter piston formula supercharging device, the axle of turbine blade (20) connects the bent axle II (21) of exhaust gas turbine two-diameter piston formula supercharging device, air-strainer (7), fresh air inlet (8), one end of the low-pressure cylinder (9) of exhaust gas turbine two-diameter piston formula supercharging device, the other end of the low-pressure cylinder (9) of exhaust gas turbine two-diameter piston formula supercharging device, one end of cooler (10), the other end of cooler (10), one end of high pressure cylinder (23), the other end of high pressure cylinder (23), high-pressure air import (11), one end of gas receiver (14), the other end of gas receiver (14), intake manifold (15) one end of optional fuel piston type two-stroke engine, intake manifold (15) the other end, the intake valve (1) that valve (16) is inner, the firing chamber order of optional fuel piston type two-stroke engine is communicated with, on gas receiver (14), have bleed valve (13) and closure (12), motor (22) is connected with bent axle II (21) by magnetic clutch (24).
4. according in optional fuel piston type two-stroke engine claimed in claim 1, when optional fuel piston type two-stroke engine starts, or optional fuel piston type two-stroke engine is need increase power time, or optional fuel piston type two-stroke engine is need accelerate time, by motor (22) and the magnetic clutch (24) of microcomputerized control, automatically the bent axle II (21) of actuating motor (22) and magnetic clutch (24) and exhaust gas turbine two-diameter piston formula supercharging device combination automatically, after the normal work of optional fuel piston type two-stroke engine, or while reaching required drive, or while reaching required rotating speed, motor (22) and magnetic clutch (24) by microcomputerized control quit work automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068124.9A CN104005846A (en) | 2013-02-23 | 2013-02-23 | Fuel-selectable piston type two-travel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068124.9A CN104005846A (en) | 2013-02-23 | 2013-02-23 | Fuel-selectable piston type two-travel engine |
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| CN104005846A true CN104005846A (en) | 2014-08-27 |
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| CN201310068124.9A Pending CN104005846A (en) | 2013-02-23 | 2013-02-23 | Fuel-selectable piston type two-travel engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632362A (en) * | 2015-02-12 | 2015-05-20 | 虞慎雨 | Exhaust gas expanding mechanism for two-stroke pure oxygen engine |
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2013
- 2013-02-23 CN CN201310068124.9A patent/CN104005846A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632362A (en) * | 2015-02-12 | 2015-05-20 | 虞慎雨 | Exhaust gas expanding mechanism for two-stroke pure oxygen engine |
| CN104632362B (en) * | 2015-02-12 | 2017-05-24 | 虞慎雨 | Exhaust gas expanding mechanism for two-stroke pure oxygen engine |
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Application publication date: 20140827 |