CN108049987A - The natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder - Google Patents
The natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder Download PDFInfo
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- CN108049987A CN108049987A CN201711145511.2A CN201711145511A CN108049987A CN 108049987 A CN108049987 A CN 108049987A CN 201711145511 A CN201711145511 A CN 201711145511A CN 108049987 A CN108049987 A CN 108049987A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/028—Adding water into the charge intakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/03—Adding water into the cylinder or the pre-combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
- F02B2043/103—Natural gas, e.g. methane or LNG used as a fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention relates to the natural gas engine structures of the double injections of hot water mixing in cold water tank outside a kind of cylinder, including natural gas engine body, inlet manifold and exhaust manifold, natural gas injector, spark plug, it is arranged on the in vivo in-cylinder water injection device of natural gas engine machine, the high-pressure hydraulic pump unit being connected with in-cylinder water injection device, it is arranged on the water jet cylinder in inlet manifold Wai, the low-pressure pump unit being connected with water jet outside cylinder, heat exchanger, respectively with natural gas injector, spark plug, in-cylinder water injection device, high-pressure hydraulic pump unit, the outer water jet of cylinder and the electronic controller of low-pressure pump unit electrical connection.Compared with prior art, the present invention utilizes the hot water rapid vaporization sprayed into cylinder, absorb heat, reduce the temperature in cylinder near combustion top dead center, inhibit the generation of pinking, while the heat for heating water comes from recycling of the heat exchanger to tail gas energy, realizes that the acting working medium in combustion process increases, the loss of heat is reduced, improves the thermal efficiency of natural gas engine.
Description
Technical field
The invention belongs to technical field of internal combustion engines, the natural gas for being related to the double injections of hot water mixing in a kind of outer cold water tank of cylinder is sent out
Motivation structure.
Background technology
Natural gas is the clean energy resource of global reserves maximum, has resourceful, and exhaust emission is low, cheap etc. excellent
Point, it is considered to be a kind of have the fuel of development prospect very much, many people think that being after coal, being the third-largest in the world by afterwards
The energy.In recent years, as the development of hydraulic fracturing technology and horizontal drilling technology is with ripe, minable gas reserves is rapid
Increase, the energy development general layout in China will be had an important influence on.Due to the CO generated after burning2It is seldom with PM, therefore quilt again
Referred to as " clean fuel ".
For the natural gas engine of spark ignition, the mixed gas in traditional lean mode cylinder is in burning
Discharge substantial amounts of heat, raise the gas temperature in cylinder, pressure increase, mixed gas high temperature and pressure and oxygen content compared with
Harmful nitrogen oxides (the NO of reaction generation in the case of densex), while cylinder interior gas easily occurs under high-temperature high-pressure state
Pinking, it is suppressed that the performance of engine.Therefore, nearly stage technique route develops towards water-jet technology direction, and feature is profit
Heat is absorbed with the cold water that is sprayed into cylinder, so as to reduce temperature, the generation of pinking and super detonation when inhibiting the big load of low speed,
The internal-combustion engine parameter including such as compression ratio, ignition advance angle can be further improved, improves the thermal efficiency.In-cylinder water injection technology obtains
The extensive concern of academia and industrial quarters is arrived, such as German BMW group, group of German Bosch, Hyundai automobile group
And the Duo Jia research institutions including Toyota Motor group all start to optimize research to in-cylinder water injection technology.It is but existing
There are technical bottlenecks for natural gas engine, it is prone to pinking and a certain amount of nitrogen oxides of generation, and the tail of cylinder discharge
Gas about taken away the heat of cylinder 1/3rd, limits internal combustion engine thermal efficiency, power per liter further improves.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind can effectively improve day
Right gas engine thermal efficiency, power per liter inhibit the natural gas engine knot of the double injections of hot water mixing in the outer cold water tank of cylinder of pinking
Structure.
The purpose of the present invention can be achieved through the following technical solutions：
The natural gas engine structure of the double injections of hot water mixing, the structure include natural gas engine in a kind of outer cold water tank of cylinder
Machine body, the inlet manifold being arranged on natural gas engine body and exhaust manifold, natural gas injector are arranged on natural gas
Spark plug in engine body is arranged on the in vivo in-cylinder water injection device of natural gas engine machine, is connected with in-cylinder water injection device
High-pressure hydraulic pump unit, be arranged on the water jet cylinder in inlet manifold Wai, the low-pressure pump unit being connected with the outer water jet of cylinder,
It is arranged on the heat exchanger between low-pressure pump unit and high-pressure hydraulic pump unit, respectively with being sprayed in natural gas injector, spark plug, cylinder
The outer water jet of hydrophone, high-pressure hydraulic pump unit, cylinder and the electronic controller of low-pressure pump unit electrical connection.
The exhaust manifold passes through heat exchanger, which absorbs the tail gas heat quantity in exhaust manifold, to entering high pressure
The water of pump unit is heated.
The low-pressure pump unit includes water tank, the low-pressure pump being arranged in water tank, is connected with low-pressure pump
Low pressure water rail, by low pressure water rail, the first low pressure water pipe being connected with water jet outside cylinder.
The water inlet of the outer water jet of the cylinder is connected by the first low pressure water pipe with low pressure water rail, and the outer water jet of cylinder returns
The mouth of a river is connected by the second low pressure water pipe with low-pressure pump.
Hydraulic pressure is added to 0.3-1MPa and is delivered to low pressure water rail again by the low-pressure pump.
The high-pressure hydraulic pump unit includes the high-pressure hydraulic pump being connected with low-pressure pump, the height being connected with high-pressure hydraulic pump
Press water rail, the first high-pressure water pipe that high pressure water rail is connected with in-cylinder water injection device.
The water inlet of the in-cylinder water injection device is connected by the first high-pressure water pipe with high pressure water rail, and in-cylinder water injection device returns
The mouth of a river is connected by the second high-pressure water pipe with high-pressure hydraulic pump.
Water is forced into after 35MPa and is delivered to high pressure water rail again by the high-pressure hydraulic pump.
One end of the heat exchanger is connected with high-pressure hydraulic pump, and the other end is connected with the low-pressure pump being arranged in water tank.
The natural gas injector includes being arranged on natural gas injector in the in vivo cylinder of natural gas engine machine or setting
Put one or both of natural gas injector outside the cylinder in inlet manifold；
The bent axle of the natural gas engine is equipped with the speed probe being electrically connected with electronic controller；
The tank gage being electrically connected with electronic controller is equipped in the water tank.
In the operating condition, the tank gage monitors the liquid level in water tank in real time, judges surplus water, and immediate feedback
It to electronic controller, when the liquid level in water tank is less than preset value, will alarm, water required supplementation with prompting, is avoided the occurrence of
The insufficient situation of water storage.
With being equipped with pressure maintaining valve on low pressure water rail, pressure maintaining valve can control hydraulic pressure the high pressure water rail, make water
Pressure ensures job stability in suitable scope.
The pressure maintaining valve is equipped with overflow pipe, which is equipped with overflow valve, inside the overflow pipe and water tank
It is connected.After setting a constant pressure to pressure maintaining valve, the hydraulic pressure of output just will not change, if hydraulic pressure is excessively high in pressure maintaining valve,
Overflow valve is opened, and extra water is just flow back into through overflow pipe in water tank, can either play the role of fast and stable hydraulic pressure, simultaneously also
It is avoided that the waste of water.
The electronic controller is according to calibration MAP chart (igniting, oil spout, spray of the engine under various operating modes of storage
The controlling curves figure such as water is known as MAP chart) water spray in master cylinder, outside cylinder, it is internally provided with in-cylinder water injection amount-speed diagram, outside cylinder
Water spray-speed diagram, in-cylinder water injection amount-torque diagram, water spray-speed diagram inside and outside cylinder.Specific control strategy and signal touch
The principle of hair is similar to the Injection Control principle of natural gas engine.
In practical application, a part of water is delivered in low pressure water rail by the low-pressure pump in water tank, and it is stored in low pressure
In water rail, water is delivered to water jet outside cylinder by low pressure water rail by low pressure water pipe；Another part water is heated through heat exchanger, and hot water is defeated
It send to high-pressure hydraulic pump, hot water pressurized delivered into high pressure water rail, and is stored in high pressure water rail, high pressure water by subsequent high-pressure hydraulic pump
By high-pressure water pipe by delivery to in-cylinder water injection device, electronic controller according to the calibration MAP chart of storage controls and sprays into day rail
Water spray in right gas engine cylinder body and in inlet manifold.
Compared with prior art, the invention has the characteristics that：
1) two water jets in cylinder and at inlet manifold are set, can reach while improve dynamic property, economy and row
Put the purpose of characteristic；
2) using the hot water rapid vaporization sprayed into cylinder, heat is absorbed, can both have been reduced near combustion top dead center in cylinder
Temperature, the generation of pinking and super detonation when inhibiting the big load of low speed, while the heat for heating water comes from heat exchanger to tail
The recycling of gas energy realizes that the acting working medium in combustion process increases, reaches and recycle, reduce the loss of heat, improve
The thermal efficiency of natural gas engine improves fuel consumption and emission characteristic；
3) in the cold water spray of inlet manifold, with the evaporation endothermic of water, the gas temperature of cylinder is lowered into, is increased into airtight
Degree increases coefficient of charge, thus improves natural gas engine power per liter, improves dynamic property；
4) monitoring in real time and control carry out natural gas engine by electronic controller, to adjust water spray moment and water spray
Amount, and water spray is made to be adapted with the specific operating mode of natural gas engine, and then improve the thermal efficiency of natural gas engine, rise work(
Rate has good application prospect.
Description of the drawings
Fig. 1 is the overall structure signal of the natural gas engine structure of the double injections of hot water mixing in the outer cold water tank of cylinder of the present invention
Figure；
Description of symbols in figure：
1- water tanks；2- low-pressure pumps；3- low pressure water rails；4- heat exchangers；5- high-pressure hydraulic pumps；6- high pressure water rails；7- electronics controls
Device processed；8- exhaust manifolds；9- natural gas engine bodies；Natural gas injector in 10- cylinders；11- spark plugs；12- in-cylinder water injections
Device；13- inlet manifold；The outer natural gas injector of 14- cylinders；The outer water jet of 15- cylinders.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1, the double natural gas engine structures sprayed of hot water mixing, the structure include in a kind of outer cold water tank of cylinder
Natural gas engine body 9, the inlet manifold 13 being arranged on natural gas engine body 9 and exhaust manifold 8, natural gas injection
Device, the spark plug 11 being arranged in natural gas engine body 9, the in-cylinder water injection device being arranged in natural gas engine body 9
12nd, the outer water jet 15 of the high-pressure hydraulic pump unit that is connected with in-cylinder water injection device 12, the cylinder being arranged in inlet manifold 13, with outside cylinder
Low-pressure pump unit that water jet 15 is connected, the heat exchanger 4 being arranged between low-pressure pump unit and high-pressure hydraulic pump unit, point
Not with water jet 15 and low-pressure pump outside natural gas injector, spark plug 11, in-cylinder water injection device 12, high-pressure hydraulic pump unit, cylinder
The electronic controller 7 of unit electrical connection.Exhaust manifold 8 passes through heat exchanger 4, which absorbs the exhaust gas heat in exhaust manifold 8
Amount heats the water into high-pressure hydraulic pump unit.One end of heat exchanger 4 is connected with high-pressure hydraulic pump 5, and the other end is with being arranged on
Low-pressure pump 2 in water tank 1 connects.
Wherein, low-pressure pump unit includes water tank 1, the low-pressure pump 2 being arranged in water tank 1, is connected with low-pressure pump 2
Low pressure water rail 3, by low pressure water rail 3, the first low pressure water pipe being connected with water jet outside cylinder 15.The water inlet of the outer water jet 15 of cylinder
Mouth is connected by the first low pressure water pipe with low pressure water rail 3, and the water return outlet of the outer water jet 15 of cylinder passes through the second low pressure water pipe and low pressure
Water pump 2 connects.Hydraulic pressure is added to 0.3-1MPa and is delivered to low pressure water rail 3 again by low-pressure pump 2.
High-pressure hydraulic pump unit includes the high-pressure hydraulic pump 5 being connected with low-pressure pump 2, the high pressure being connected with high-pressure hydraulic pump 5
Water rail 6, the first high-pressure water pipe that high pressure water rail 6 is connected with in-cylinder water injection device 12.The water inlet of in-cylinder water injection device 12 passes through
First high-pressure water pipe is connected with high pressure water rail 6, and the water return outlet of in-cylinder water injection device 12 is connected by the second high-pressure water pipe and high-pressure hydraulic pump 5
It connects.Water is forced into after 35MPa and is delivered to high pressure water rail 6 again by high-pressure hydraulic pump 5.
In the present embodiment, natural gas injector includes being arranged on natural gas injection in the cylinder in natural gas engine body 9
Device 10 and the outer natural gas injector 14 of the cylinder being arranged in inlet manifold 13；The bent axle of natural gas engine is equipped with and electronics
The speed probe that controller 7 is electrically connected；The tank gage being electrically connected with electronic controller 7 is equipped in water tank 1.In working condition
Under, tank gage monitors the liquid level in water tank 1 in real time, judges surplus water, and immediate feedback is to electronic controller 7, when in water tank 1
Liquid level be less than preset value when, will alarm, with prompting require supplementation with water, avoid the occurrence of the insufficient situation of water storage.
With being equipped with pressure maintaining valve on low pressure water rail 3, pressure maintaining valve can control hydraulic pressure, make at hydraulic pressure high pressure water rail 6
In in suitable scope, ensure job stability.Pressure maintaining valve is equipped with overflow pipe, which is equipped with overflow valve, overflow pipe
It is connected with inside water tank 1.After setting a constant pressure to pressure maintaining valve, the hydraulic pressure of output just will not change, if pressure maintaining valve
Interior hydraulic pressure is excessively high, and overflow valve is opened, and extra water is just flow back into through overflow pipe in water tank 1, can either play fast and stable hydraulic pressure
Effect, while be also avoided that the waste of water.
In calibration MAP chart master cylinder of the electronic controller 7 according to storage, the water spray outside cylinder, be internally provided with in-cylinder water injection
Outer water spray-the speed diagram of amount-speed diagram, cylinder, in-cylinder water injection amount-torque diagram, water spray-speed diagram inside and outside cylinder.Specific control
Strategy and the principle of signal triggering are similar to the Injection Control principle of natural gas engine.
In practical application, a part of water is delivered in low pressure water rail 3 by the low-pressure pump 2 in water tank 1, and it is stored in low
It presses in water rail 3, water is delivered to water jet 15 outside cylinder by low pressure water rail 3 by low pressure water pipe；Another part water adds through heat exchanger 4
Hot water pressurized delivered into high pressure water rail 6, and is stored in high pressure by heat, delivery to high-pressure hydraulic pump 5, subsequent high-pressure hydraulic pump 5
In water rail 6, high pressure water rail 6 is by high-pressure water pipe by delivery to in-cylinder water injection device 12, and electronic controller 7 is according to the mark of storage
Determine MAP chart control and spray into the interior water spray in inlet manifold 13 of Cylinder of Natural Gas Engine body.
Embodiment 2：
In the present embodiment, natural gas injector is natural gas injector in the cylinder being arranged in natural gas engine body 9
10.Remaining is the same as embodiment 1.
Embodiment 3：
In the present embodiment, natural gas injector is the outer natural gas injector 14 of the cylinder being arranged in inlet manifold 13.
Remaining is the same as embodiment 1.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
Knowing the personnel of art technology obviously can easily make these embodiments various modifications, and general original described herein
It ought to use in other embodiment without having to go through creative labor.Therefore, the invention is not restricted to above-described embodiment, this fields
Technical staff's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in the guarantors of the present invention
Within the scope of shield.
Claims (10)
1. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder, which is characterized in that the structure includes
Natural gas engine body (9), the inlet manifold (13) being arranged on natural gas engine body (9) and exhaust manifold (8), day
Right gas blowout emitter, the spark plug (11) being arranged in natural gas engine body (9) are arranged on natural gas engine body (9)
Interior in-cylinder water injection device (12), the high-pressure hydraulic pump unit being connected with in-cylinder water injection device (12) are arranged in inlet manifold (13)
The outer water jet (15) of cylinder, be connected with the outer water jet (15) of cylinder low-pressure pump unit, be arranged on low-pressure pump unit and height
Heat exchanger (4) between water pump unit, respectively with natural gas injector, spark plug (11), in-cylinder water injection device (12), high pressure water
The outer water jet (15) of pump unit, cylinder and the electronic controller (7) of low-pressure pump unit electrical connection.
2. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 1,
It is characterized in that, the exhaust manifold (8) passes through heat exchanger (4), which absorbs the exhaust gas heat in exhaust manifold (8)
Amount heats the water into high-pressure hydraulic pump unit.
3. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 2,
It is characterized in that, the low-pressure pump unit includes water tank (1), the low-pressure pump (2) being arranged in water tank (1) and low pressure water
Low pressure water rail (3) that pump (2) is connected, by low pressure water rail (3), with cylinder the first low pressure water pipe for being connected of water jet (15) outside.
4. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 3,
It is characterized in that, the water inlet of the outer water jet (15) of the cylinder is connected by the first low pressure water pipe with low pressure water rail (3), is sprayed outside cylinder
The water return outlet of hydrophone (15) is connected by the second low pressure water pipe with low-pressure pump (2).
5. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 4,
It is characterized in that, hydraulic pressure is added to 0.3-1MPa and is delivered to low pressure water rail (3) again by the low-pressure pump (2).
6. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 3,
It is characterized in that, the high-pressure hydraulic pump unit includes the high-pressure hydraulic pump (5) being connected with low-pressure pump (2) and high-pressure hydraulic pump (5)
The high pressure water rail (6) being connected, the first high-pressure water pipe that high pressure water rail (6) is connected with in-cylinder water injection device (12).
7. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 6,
It is characterized in that, the water inlet of the in-cylinder water injection device (12) is connected by the first high-pressure water pipe with high pressure water rail (6), spray in cylinder
The water return outlet of hydrophone (12) is connected by the second high-pressure water pipe with high-pressure hydraulic pump (5).
8. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 7,
It is characterized in that, water is forced into after 35MPa and is delivered to high pressure water rail (6) again by the high-pressure hydraulic pump (5).
9. the natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder according to claim 6,
It is characterized in that, one end of the heat exchanger (4) is connected with high-pressure hydraulic pump (5), the other end and the low pressure being arranged in water tank (1)
Water pump (2) connects.
10. according to the natural gas engines that hot water mixing pair is sprayed in cold water tank outside a kind of cylinder of claim 1 to 9 any one of them
Machine structure, which is characterized in that the natural gas injector includes being arranged in the cylinder in natural gas engine body (9) natural
One or both of gas blowout emitter (10) or the outer natural gas injector (14) of the cylinder being arranged in inlet manifold (13)；
The bent axle of the natural gas engine is equipped with the speed probe being electrically connected with electronic controller (7)；
The tank gage being electrically connected with electronic controller (7) is equipped in the water tank (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2017108017432 | 2017-09-07 | ||
| CN201710801743 | 2017-09-07 |
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| CN111365119A (en) * | 2020-03-14 | 2020-07-03 | 北京工业大学 | Zero-emission two-stroke ignition type hydrogen-oxygen engine and control method |
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| CN111365119A (en) * | 2020-03-14 | 2020-07-03 | 北京工业大学 | Zero-emission two-stroke ignition type hydrogen-oxygen engine and control method |
| CN111365119B (en) * | 2020-03-14 | 2021-07-30 | 北京工业大学 | Zero-emission two-stroke ignition type hydrogen-oxygen engine and control method |
| CN113389624A (en) * | 2021-06-11 | 2021-09-14 | 重庆大学 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
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