CN101713331A - Backfire four-stroke adiabatic internal-combustion engine - Google Patents
Backfire four-stroke adiabatic internal-combustion engine Download PDFInfo
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- CN101713331A CN101713331A CN200810169654A CN200810169654A CN101713331A CN 101713331 A CN101713331 A CN 101713331A CN 200810169654 A CN200810169654 A CN 200810169654A CN 200810169654 A CN200810169654 A CN 200810169654A CN 101713331 A CN101713331 A CN 101713331A
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Abstract
The invention discloses a backfire four-stroke adiabatic internal-combustion engine, which belongs to the field of mechanical and thermodynamic engineering. Compared with a four-stroke working mode, the working mode of the internal-combustion engine comprises: gas suction, compression (ignition), expansion (including medium injection process) and working, and exhaust stroke. In the internal-combustion engine, (an) a (adiabatic) heat insulation layer is further used or (adiabatic) heat insulation material is coated on the surface of the engine. A heat balance (buffer) material component is added (in a combustion chamber) for heat energy storage and establishment of a brand new thermodynamics circulation process, thereby reducing heat consumption and improving working efficiency.
Description
The invention belongs to genus machinery and thermodynamic engineering field, definite saying discloses a kind of thermal insulation 4 stroke IC engines of setting up medium injecting stroke.
The efficient of existing 4 stroke mature technologies mostly is: 25%-30% efficient; Heat radiation more than 30%; 40% above tail gas heat extraction.Since 1st century, people are improving the efficiency of internal combustion engine always, and the various schemes of water (medium injection) etc. also have the developing history of many decades; As: the oil emulsion technology, Thermo Isolation Technique, suction port add the water technology, water flood (high pressure steam) the acting technology after the exhaust stroke etc.A spot of emulsified water oil is very few to the contribution of efficient, and the increase of amount of water will be disturbed burning, the increase of several times C-H compound discharging (mean the more insufficient of burning, increase to efficient is the contribution of bearing), offset the effect of the boost pressure of water vapour to a certain extent, thereby latter's (increase) independently high pressure steam acting (stroke) technology will can not disturb burning, be a kind of promising thinking, but the improved efficiency that will obtain commercial value also need do further establishment on the [thermodynamic pattern.
Characteristics of the present invention are a kind of on independent high pressure steam stroke thinking and adiabatic theoretical foundation, and what develop is more suitable for 4 strokes (with the medium injection) adiabatic scheme in objective thermodynamic process.
The objective of the invention is to solve present adiabatic scheme and high pressure steam thinking and put the theory and the technological deficiency of the thermomechanics aspect on the case: to be subject to chamber temperature such as Thermo Isolation Technique overheated all the time always, can't set up continuable efficient circulation, under the adiabatic method, cylinder can't be got back to the initial low temperature requirement of 200-300 degree in suction stroke, this is an insurmountable problem over 30 years, though efficient has improvement, but power output significantly descends, can't bring the raising of the applicability price ratio of product industry. (it is that water is emulsified in the oil that another kind of water flooding regime is also arranged in water filling in single (the adding water after the burning) that produced in the last few years, also attempt in a large number at present, produce little effect, this is close with the air-breathing water flooding regime that is washed into, water participates in combustion process, excessive water will sternly influence burning, and the water yield that can play remarkable thermomechanical effect is the several times-10 times of the use amount of oil at least; And the amount of water of the correlation test that had carried out already at present all surpasses oil mass 80%) in the thinking of stroke, the injecting process and combustion process are separated, amount of water is with unrestricted so in principle, the thermal source supply problem that how to keep sustainable support steam High Temperature High Pressure is inadequate (only mainly reclaims by the afterheat of locular wall and the recovery of small part tail gas is what to be not enough to support greater than 2% net work output, be not more than 8% increase and be no practical significance); Problem of effectively utilizing problem and [thermodynamic theoretical side of tail gas thermal source 40% loss etc. in addition, only depending on the preheating water mode is not have too many contribution, these all need to be solved, these tail gas heat quantities will be at least used as the intermediary of [thermodynamic, so just can produce the multicycle high efficiency internal combustion engine that meets thermodynamic theories.
Key problem in technology of the present invention is: the related major component structure of technology is to reclaim (not essential part) and condensation Denoiser compositions such as (not essential parts) by (1) cylinder, (2) cylinder head, (3) piston body, (6) spark plug, (7) jet, (8) spray media port, (9) intake valve, (10) exhaust valve, (11) heat insulation layer, (12) and (21) thermal equilibrium material members (the optional structure division in the firing chamber, not essential part), camshaft and (spraying into) medium;----exhaust stroke---totally 4 strokes do work (dividing potential drop of combustion gas+dielectric gas mixed gas+medium continuation injection) in concrete working procedure: by workflow be: air-breathing---compression (last journey igniting, simultaneously also can be before last journey finishes (this moment mixed gas finishing combustion) substantially beginning medium inject in the cylinder); The injection of medium is that to inject fluid in cylinder (be fluid state under the normal temperature by the spray media port, and can be in the exhaust ports of internal-combustion engine, carry out preheating and produce the pre-thermal medium of High Temperature High Pressure, the heat energy of recovery section tail gas) medium, being equivalent to has increased compression ratio, thereby the cooperation heat insulating construction, also can bring the firing chamber cooling operation that needs, to external world the more net works of output; Its technical characteristics is 4 aspects:
At first, in combustion gas expansion expansion stroke, set up the medium injection process with respect to the mode of operation of conventional 4 stroke IC engines;
Secondly in the process that mixed gas compression stroke carries out, just begin to ignite or the compression ignite mixed gas; Just substantially fully burning before entering the expansion expansion stroke.
Secondly promptly can keep of the Structural Hardware manufacturing of water-cooled (liquid of forced flow or the air-cooled) circuit of routine again based on the radiating structure state of conduction on the surface of cylinder, cylinder head and piston structure, also can carry out the thermal insulationization processing: promptly be { also can be with related parts (cylinder around the firing chamber to the peripheral devices (surface portion that is exposed) of firing chamber, piston, cylinder head, valve, the part of spark) make or cover with high temperature resistant and heat insulation good (thermal insulation) material (can make nonmetallic material) as: pottery and composite material }; Adiabatic processing will make heat energy be retained among the shallow-layer that reaches the material on the chamber wall in the mixed steam; Thereby in the process of burning compression, will be by significant intensification trend; Accumulation of energy is remarkable.
At last in not hindering the space of piston motion, inside, firing chamber promptly can not keep former having living space (not setting up any additional solid state device), can place thermal equilibrium material members pressure again, the placement of this thing will influence efficient on certain degree, but peak temperature and pressure in the restriction cylinder that can be good, thereby avoid adopting as far as possible.
Described medium injection process is meant that the medium spout injects the process of flowing medium in cylinder, can be only to continue for some time at (in the medium expansion stroke); Also can be that final stage in compression stroke just begins to inject segment fluid flow medium (one of major reason is for better cooling, also is because the liquid medium vaporized expanding needs certain buffer time, is equivalent to the effect of ignition advance angle).
Described flowing medium refers to: the mixture of water and water and other chemical substances or other non-water base normal temperature liquefied compounds
Described (firing chamber) thermal insulationization processing refers to carries out cylinder, cylinder head and piston face heat insulation and heat-resisting processing; Concrete grammar can be: be processed with thermal-protective coating or surface applied thermal-protective material under cylinder, cylinder head and piston face, heat-resisting and wear-resistant processing is carried out on corresponding surface; Perhaps directly make by (adiabatic good) nonmetallic material of poor heat conductivity.
Described thermal equilibrium material members refers to: can be mounted in the space on the surface of the direct catalytic combustion chamber high-temperature gas on heat insulation (heat-resisting) floor on cylinder, cylinder head and the piston face, use heat conduction and the good material (as tungsten and corresponding alloy etc.) of heatproof, in order to buffering and balance cylinder temperature,, medium gasification supercharging provides heat energy for heating; From the energy conservation angle; The insulation of firing chamber will completely cut off the conduction and the radiation outflow of energy, the good thermal capacitance of the heat conduction of being set up in the firing chamber (as the electric capacity heat of handling up) will play an important role, he can repeatedly absorb heat in cycle period is heat release, in order to buffering and balance cylinder temperature and pressure; The arrangement of the placement location of thermal equilibrium material: can be that the top of piston and cylinder head near zone and he do not hinder area of space in the cylinder of piston stroke; The skin-material of cylinder wall also can be selected some materials that easily pass to heat that play the effect of thermal equilibrium material members (promptly be not hinder in the space of piston motion the thermal equilibrium material members is installed, with the limit temperature peak value and be used for storage buffering heat energy) in the firing chamber.
Its major technique feature also has replenishing of 4 aspects: 1 at first with respect to existing 4 stroke mode of operations: the time control of having set up the medium injection process in the combustion gas expansion stroke, can be when piston motion be near top dead center (during near top dead center, injection advance angle), the high pressure liquid pump will inject flowing medium (liquid endothermic gasification, supercharging also promotes the stroke that piston is finished main work done) by the spray media port in cylinder.2 secondly in mixed gas compression stroke, under the state of normal ignition advance angle (5-7 degree) head and shoulders above, light mixed gas, this moment will do work to high-pressure gas by piston in the external world, and energy will be stored in the form of heat energy in the mixed gas, and major part will discharge to external world at the expansion expansion stroke; 3 more secondly for developing efficiency, cylinder, cylinder head and piston promptly can keep the radiating state based on conduction of the water-cooled circuit nature of routine, also can carry out the thermal insulationization processing to the peripheral devices (surface portion that is exposed) of firing chamber (also can make related parts around the firing chamber: as cylinder of high temperature resistant and heat insulation good material (can make nonmetal), piston, cylinder head, the valve part); 4 develop efficiency for bigger at last, the inner surface treatment of the bags can be become usual manner (with the cylinder and the cylinder cap of the homogeneous metal material of the water-cooled and the air-cooled type of cooling), also can be covered with heat insulation and heat-resisting coating at the cylinder of (metal) and (being exposed to the firing chamber) surface portion of cylinder cap and valve parts; Also can use the cylinder and the cylinder head of the processing of scrap metal material thermal insulationization; Can in the firing chamber does not hinder the space of piston motion, the thermal equilibrium material members be installed, with limit temperature peak value and storage buffering heat energy yet.
Described medium injection process is meant that the medium spout injects the process of flowing medium in cylinder, can be only to continue for some time at (in the medium expansion stroke); Also can be that final stage in exhaust stroke just begins to inject segment fluid flow medium (for better cooling, also be because the liquid medium vaporized expanding needs the regular hour, be equivalent to the effect of ignition advance angle).
Described flowing medium refers to: the mixture of water and water and other chemical substances or other non-water base normal temperature liquefied compounds
Described (firing chamber) thermal insulationization processing refers to carries out cylinder, cylinder head and piston face heat insulation and heat-resisting processing; Concrete grammar can be: be processed with thermal-protective coating or surface applied thermal-protective material under cylinder, cylinder head and piston face, heat-resisting and wear-resistant processing is carried out on corresponding surface; Perhaps directly make by the nonmetallic material of poor heat conductivity.Concrete grammar can be: be processed with thermal-protective coating or surface applied thermal-protective material under cylinder, cylinder head and piston face, heat-resisting and wear-resistant processing is carried out on corresponding surface.
Described thermal equilibrium material members refers to: can be mounted in the space on the surface of the direct catalytic combustion chamber high-temperature gas on heat insulation (heat-resisting) floor on cylinder, cylinder head and the piston face, the good material of heat conduction and heatproof is (as metallic copper, tungsten and corresponding alloy etc.), in order to buffering and balance cylinder temperature,, medium gasification supercharging provides the energy for heating; From the energy conservation angle; The insulation of firing chamber will completely cut off the conduction and the radiation outflow of energy, the good thermal capacitance of the heat conduction of being set up in the firing chamber (as the electric capacity heat of handling up) will play an important role, he can repeatedly absorb heat in cycle period is heat release, in order to buffering and balance cylinder temperature and pressure; The arrangement of the placement location of thermal equilibrium material: can be that the top of piston and cylinder head near zone and he do not hinder area of space in the cylinder of piston stroke; The skin-material of cylinder wall also can select some to play the material that easily passes to heat of thermal equilibrium material members effect.
The burning of combustion gas will continue in compression stroke and expansion expansion stroke, and the tired characteristics that increase of its energy will be: first; Burn more abundant (allowing the endurance to have more 1 times), especially add the catalytic media (in medium injecting stroke, also add catalyst component, perhaps in the bags, add catalytic solid) of an amount of mode than traditional 4 stroke modes; Second; Because thermal insulationization processing, the heat that direct transfers to the external world can not surpass 5% of total amount, when finishing to compression stroke, the heat energy that is accumulated will be 3 times of the maximum heat energy value of normal 4 strokes, because and the buffer function of balance material, mixture temperature will be limited in below 3800 degree, thermal energy storage more than 70% is in the thermal equilibrium material members, its supercharging estimation: when temperature decline 35%-40% obtains new balance, enter in the injected media having the heat that equals firing chamber gas 1.5-1.8 heat energy value doubly, with water is example, to make 30%-35% equal the water vapor of firing chamber gaseous mass, because the molecular weight of water is 1.8 times of mixed gas, thereby with the about 60%-70% of supercharging; Because the effect that continues of the heat of thermal equilibrium parts buffering, with the extra continuous action that brings 10%, the temperature of equilibrium of converting the 2000-2200 degree with respect to conventional 4 stroke IC engines, will bring the lasting equivalence of the pressure more than 40% to increase at least.
Thereby in the design's structure, for raising the efficiency; Choosing of the thermal equilibrium material of higher relatively peak temperature and less relatively quality even with the extra thermal equilibrium material (because thermal-protective material itself reaches the parts of some knockings in the firing chamber: as spark plug head etc.) of installing, could obtain higher efficient.
Can also can automatically controlledization of right and wrong being referred to by automatically controlledization of described thermal equilibrium material members: non-automatically controlledization is meant without any power supply and connects, automatically controlledization is meant its connection of powering, can make its moment power supply produce high temperature when needing, can promote combustion of mixed gas in the cylinder.
Below in conjunction with accompanying drawing present technique and structure are described further:
[Fig. 1] structural principle schematic representation back-fire formula 4 stroke adiabatic internal-combustion engines
[Fig. 2] back-fire formula 4 stroke adiabatic internal-combustion engine [thermodynamic schematic representation
(1) cylinder
(2) cylinder head
(3) piston body
(4) bent axle
(5) connecting rod
(6) spark plug
(7) jet
(8) spray media port
(9) intake valve
(10) exhaust valve
(11) heat insulation layer
(12) thermal equilibrium material (in the firing chamber)
(13) piston ring
(14) medium reclaims the condensation Denoiser
(21) a kind of top layer thermal equilibrium material (in the firing chamber)
Shown in [Fig. 1]: working procedure is: intake valve (9) is open, piston body (3) is moved by top dead center, again suck air the time, jet (7) oil spout, when piston (3) arrives lower dead center, intake valve (9) is closed, enter compression process, when compression also far away to top dead center (when proceeding to 2/3, this moment from top dead center also differ from 60 the degree) near the time, spark plug (6) is lighted mixed gas, high pressure-temperature combustion gas this moment will produce bigger resistance and hinder piston to moving to stop, the merit of external force will make energy be stored in the pressurized gas, the interior of mixed gas can constantly increase, the continuation of burning also will make temperature and pressure also constantly rise, simultaneously in this process, if (in the cylinder) is placed with thermal equilibrium material (12), only need the shape of filament sample to get final product, it will produce significant role: especially (after casing wall is taked adiabatic method) it will adsorb and store a certain amount of heat energy, with balance cylinder temperature and pressure, make it to be unlikely to too high, exceed the limit that can bear during material reaches, thereby the energy that a part of fuel discharged also is stored in High Temperature High Pressure mixed gas and the thermal equilibrium material (12), and what expressed (21) is a kind of top layer thermal equilibrium material (in the firing chamber).
When piston body (3) moves near the top dead center, spray media port (8) this moment (can make water etc. to the in-cylinder injection flowing material, can carry out preheating at relief opening earlier, the recovery section heat extraction), this stylish thermal equilibrium will be established: especially a large amount of releases of the energy of thermal equilibrium material (12), the pressure of new mixed gas will have remarkable rising (temperature will descend to some extent), in this process, be accompanied by the motion to lower dead center of piston, will be to the bent axle output work, ensuing stroke can be an exhaust process, gets rid of gas-vapor mix, and temperature will be lower than about 20-40% of the exhaust temperature of present traditional 4 stroke modes.
The switching sequence of valve can also can be just at developing Electromagnetic Control valve system with conventional camshaft structure.
The characteristics of thermal equilibrium material (in the cylinder) (12) need, and the capacity of heat transmission is fast arranged, and for satisfying these characteristics with regard to needs sheet or the thread processing of ring-type, comply with the ring-type of vortex-like airflow direction and arrange.
After cylinder adiabatic was handled, for meeting new thermodynamical equilibrium, the placement of thermal equilibrium material was indispensable, (near selectable place: the top and cylinder head of piston, do not hinder the interior area of space of cylinder of piston stroke).
Add the control of the total amount of water: should be between the 20%-40% that is not more than gas gross mass+thermal equilibrium material gross mass.
Shown in [Fig. 2]:
Be cylinder circuit thermomechanics P-V curve (pressure----volume curve); The circuit closed curve is such process, and a---b is suction stroke (pressure of this moment approximates external atmosphere pressure P0); B--c is the first half term (pressure of this moment rises gradually, can reach 3--5 times at last more than the P0, and temperature rises about hundreds of degree) of compression stroke; (c-d is the second half of compression stroke, be that (the gas and oil machine is with spark ignitor for the beginning process of mixture combustion, diesel engine is then by the compression ignite mode), maximum temperature can reach more than 2500 degree, pressure can reach 80-100 barometric pressure) d--g--h is (expansion) expansion stroke, burning also continues to continue for some time, this process be medium inject and mixed gas expansion expansion stroke (mixed gas begins supercharging, the vaporization of liquid liquid, pressure maximum P4 will be 120-160 more than the barometric pressure, the about 1500-1800 degree of the highest temperature); H-a is exhaust stroke (gets back to the next round circuit and begin stroke).
Can find out from the p----v cyclic curve: external net work output is approximately bent area that polygon trapezoidal bcdgh encloses.
That is: net work=S
Bcdgh
Among the figure: P0 is that outside atmosphere is pressed, and P1 is a compression top center pressure, and P3 is the fuel gas buring surge pressure, and P4 is that medium injects surge pressure.
Obviously the institute greater than normal 4 stroke IC engines encloses area S
BcdeExport more merit to external world under the situation of the same fuel of consumption, efficient makes moderate progress.
Claims (6)
1. back-fire formula 4 stroke adiabatic internal-combustion engines, related major component structure is to reclaim (not essential part) and condensation Denoiser compositions such as (not essential parts) by (1) cylinder, (2) cylinder head, (3) piston body, (6) spark plug, (7) jet, (8) spray media port, (9) intake valve, (10) exhaust valve, (11) heat insulation layer, (12) and (21) thermal equilibrium material members (the optional structure division in the firing chamber, not essential part), camshaft and (spraying into) medium;----exhaust stroke---totally 4 strokes do work (dividing potential drop of combustion gas+dielectric gas mixed gas+medium continuation injection) in concrete working procedure: by workflow be: air-breathing---compression (last journey igniting, simultaneously also can be before last journey finishes (this moment mixed gas finishing combustion) substantially beginning medium inject in the cylinder); The injection of medium is that to inject fluid in cylinder (be fluid state under the normal temperature by the spray media port, and can be in the exhaust ports of internal-combustion engine, carry out preheating and produce the pre-thermal medium of High Temperature High Pressure, the heat energy of recovery section tail gas) medium, being equivalent to has increased compression ratio, thereby the cooperation heat insulating construction, also can bring the firing chamber cooling that needs, to external world the more net works of output; It is characterized in that: at first, in combustion gas expansion expansion stroke, set up the medium injection process with respect to the mode of operation of conventional 4 stroke IC engines; Secondly in the process that mixed gas compression stroke carries out, just begin to ignite or the compression ignite mixed gas; Secondly in cylinder, cylinder head and structure of piston, promptly can keep conventional water-cooled (or air-cooled) endless form again, Structural Hardware manufacturing based on the radiating structure state of conduction (and Active liquid flow), also can carry out the thermal insulationization processing: promptly be { can be with related parts (cylinder around the firing chamber to the peripheral devices (and the surface portion that is exposed) of firing chamber, piston, cylinder head, valve, the part of spark) make or cover with high temperature resistant and heat insulation good (thermal insulation) material (can make nonmetallic material); At last promptly can not keep former having living space (not setting up any additional solid state device) in inside, firing chamber does not hinder the space of piston motion, can place the thermal equilibrium material members again, this member both can also can automatically controlledization of right and wrong by automatically controlledization.
Such as claim 1 the art internal-combustion engine, its feature just is: described medium injection process is meant that the medium spout injects the process of flowing medium in cylinder, can be only to continue for some time at (in the medium expansion stroke); Also can be that final stage in compression stroke just begins to inject segment fluid flow medium (one of major reason is for better cooling, also is because the liquid medium vaporized expanding needs certain buffer time, is equivalent to the effect of ignition advance angle).
Such as claim 1 the art internal-combustion engine, its feature just is: described flowing medium refers to: the mixture of water and water and other chemical substances or other non-water base normal temperature liquefied compounds.
Such as claim 1 the art internal-combustion engine, its feature just is: described (firing chamber) thermal insulationization processing refers to carries out cylinder, cylinder head and piston face heat insulation and heat-resisting processing; Concrete grammar can be: be processed with thermal-protective coating or surface applied thermal-protective material under cylinder, cylinder head and piston face, heat-resisting and wear-resistant processing is carried out on corresponding surface; Perhaps directly make by (adiabatic good) nonmetallic material of poor heat conductivity.
Such as claim 1 the art internal-combustion engine, its feature just is that described thermal equilibrium material members refers to: can be mounted in the space on the surface of the direct catalytic combustion chamber high-temperature gas on heat insulation (heat-resisting) floor on cylinder, cylinder head and the piston face, use heat conduction and the good material (as tungsten and corresponding alloy etc.) of heatproof, in order to buffering and balance cylinder temperature,, medium gasification supercharging provides heat energy for heating; From the energy conservation angle; The insulation of firing chamber will completely cut off the conduction and the radiation outflow of energy, the good thermal capacitance of the heat conduction of being set up in the firing chamber (as the electric capacity heat of handling up) will play an important role, he can repeatedly absorb heat in cycle period is heat release, in order to buffering and balance cylinder temperature and pressure; The arrangement of the placement location of thermal equilibrium material: can be that the top of piston and cylinder head near zone and he do not hinder area of space in the cylinder of piston stroke; The skin-material of cylinder wall also can be selected some materials that easily pass to heat that play the effect of thermal equilibrium material members (promptly be not hinder in the space of piston motion the thermal equilibrium material members is installed, with the limit temperature peak value and be used for storage buffering heat energy) in the firing chamber.
Such as claim 1 the art internal-combustion engine, its feature just is can also can automatically controlledization of right and wrong being referred to by automatically controlledization of described thermal equilibrium material members: non-automatically controlledization is meant without any power supply and connects, automatically controlledization is meant its connection of powering, can make its moment power supply produce high temperature when needing, can promote combustion of mixed gas in the cylinder.
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| CN200810169654A CN101713331A (en) | 2008-10-07 | 2008-10-07 | Backfire four-stroke adiabatic internal-combustion engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014616A (en) * | 2015-01-18 | 2016-10-12 | 吴小平 | Season difference heat insulation type rotor internal combustion engine technology and internal combustion engine manufactured through season difference heat insulation type rotor internal combustion engine technology |
| CN112253307A (en) * | 2019-07-06 | 2021-01-22 | 罗天珍 | Intercooling method for instantaneous conduction, throttling and intercooling of combustion chamber and heat-insulating internal combustion engine |
| CN114729604A (en) * | 2019-11-22 | 2022-07-08 | 卡特彼勒发动机有限及两合公司 | Method for operating an internal combustion engine and gaseous fuel injection unit |
| CN115030777A (en) * | 2022-07-04 | 2022-09-09 | 嘉兴腾狼智能科技有限公司 | Steam engine |
-
2008
- 2008-10-07 CN CN200810169654A patent/CN101713331A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014616A (en) * | 2015-01-18 | 2016-10-12 | 吴小平 | Season difference heat insulation type rotor internal combustion engine technology and internal combustion engine manufactured through season difference heat insulation type rotor internal combustion engine technology |
| CN112253307A (en) * | 2019-07-06 | 2021-01-22 | 罗天珍 | Intercooling method for instantaneous conduction, throttling and intercooling of combustion chamber and heat-insulating internal combustion engine |
| CN114729604A (en) * | 2019-11-22 | 2022-07-08 | 卡特彼勒发动机有限及两合公司 | Method for operating an internal combustion engine and gaseous fuel injection unit |
| CN115030777A (en) * | 2022-07-04 | 2022-09-09 | 嘉兴腾狼智能科技有限公司 | Steam engine |
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