CN105781798A - Combined double-piezoelectric fuel gas injection device - Google Patents
Combined double-piezoelectric fuel gas injection device Download PDFInfo
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- CN105781798A CN105781798A CN201610111270.9A CN201610111270A CN105781798A CN 105781798 A CN105781798 A CN 105781798A CN 201610111270 A CN201610111270 A CN 201610111270A CN 105781798 A CN105781798 A CN 105781798A
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- valve
- needle
- fuel gas
- oil
- control valve
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Classifications
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
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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
Abstract
The invention provides a combined double-piezoelectric fuel gas injection device. The combined double-piezoelectric fuel gas injection device comprises a piezoelectric control part, a fuel gas nozzle part, a gas inlet channel, an oil inlet channel and the like. The combined double-piezoelectric fuel gas injection device provided by the invention is characterized by being formed by combining two fuel gas nozzles with the same structure; each needle valve is controlled to move by a corresponding piezoelectric component to realize fuel gas injection, the lift of each needle valve is adjustable, and control accuracy for a fuel gas injection amount and a fuel gas injection rate is high; injection for two paths of a fuel gas is controlled by two needle valves, the fuel gas injection is high in flexibility, and the need of a fuel gas injection amount under a large-range power can be realized, that is, when each single needle valve works, low-power output can be realized, when the two needle valves work simultaneously, high-power output can be realized, and when each single needle valve works at first, and then the two needle valves work, an injection rule with a sequence of 'first slow and then fast' can be realized; and meanwhile, the fuel gas is sealed by fuel oil, and avoidance for leakage of the fuel gas through a needle valve partner is benefited, thus an injection pressure and an injection speed of the fuel gas are increased, and the dynamic property of the engine and the economical efficiency of a fuel are improved.
Description
Technical field
The present invention relates to a kind of dual fuel engine fuel gas ejecting device, specifically a kind of combined double-pressure electricity fuel gas ejecting device.
Background technology
Development engine replacing fuel is to solve energy shortage and problem of environmental pollution effectively one of means.Because rich reserves, cheap and disposal of pollutants be low etc., advantage becomes the engine replacing fuel with good development prospect to gaseous fuel.Although the gas engine only with a kind of gaseous fuel discharges cleaning, but gases used fuel energy density is low, and fuel consumption is big, uses direction limited；And adopting diesel oil as light fluid, gaseous fuel can switch flexibly when using as the dual fuel engine of main fuel between two kinds of fuel, and replacement of fuel rate is high, has good dynamic property, economy and emission performance.
Existing in-cylinder direct-jet dual fuel engine many employings electromagnetic control type fuel gas ejecting device, the motion being controlled needle-valve by electromagnetic valve realizes fuel gas injection, the weak point existed has: magnetic valve controller is by the impact of hysteresis loop and solenoid inductance, the response of spool has delay relative to control signal, affects control accuracy；Single gas nozzle is difficult to take into account power fuel gas injection amount demand and fuel gas injection rule on a large scale and controls requirement, and big flow nozzle can meet high-power required fuel gas injection amount, but fuel gas injection rule when being difficult to small-power controls requirement；Fuel gas injection rule when low discharge nozzle can meet small-power controls requirement, but is difficult to high-power required fuel gas injection amount；Although and two independent gas nozzles can meet electromotor power demand on a large scale, but size and installation site are limited by cylinder cap；In addition, in fuel gas injection process, along with the motion combustion gas of spool is aggravated to the leakage of electromagnetic valve end by the gap between spool and valve body, cause that fuel gas injection pressure and injection rate reduce, the stability of fuel gas injection there is is harmful effect, have impact on engine power performance and fuel economy.
Summary of the invention
A kind of fuel gas injection stability of offer is provided and motility is high, disclosure satisfy that the fuel gas injection amount demand of power on a large scale and system jet law variability requirements, the problem that combustion gas is leaked by pintle nozzle match-ing parts can be solved preferably, it is possible to be effectively improved the dynamic property of electromotor and the combined double-pressure electricity fuel gas ejecting device of fuel economy.
The object of the present invention is achieved like this:
Including piezoelectricity control part, gas nozzle part and injection apparatus shell；Described gas nozzle part includes the needle-valve group that two sets are made up of needle-valve, gag lever post and needle-valve back-moving spring, two needle-valve groups are arranged in injection apparatus shell by needle-valve base and the needle-valve body fastening nut shared, needle chamber is formed between each needle-valve and injection apparatus shell, there is pressure tank between each needle-valve and needle-valve base, in the middle of gag lever post, have central oil passage；Piezoelectricity control part includes two piezoelectric elements and the two set control valves that are arranged on piezoelectric element enclosure, and two sets control valves and share control valve return spring holders；Piezoelectric element shell is connected with injection apparatus shell and is integrally formed with gas nozzle part by the collecting of electrical controls, injection apparatus shell has two inlet channels, two inlet channels connect with two pressure tanks respectively, have, in the middle of piezoelectric element shell, control valve return spring holder and injection apparatus shell, the oil-feed oil duct being mutually communicated, oil-feed oil duct and two control valves on piezoelectric element shell connect, and control to have the oil duct connected with the central oil passage in the middle of two gag lever posts and drain tap on valve return spring holder.
The present invention can also include:
1, having band between each needle-valve and needle-valve base, oil-feed oil duct and two bands connect.
1, described control valve is arranged on inside control valve seat, sealing ring is set outside control valve seat, control valve upper end and be stuck on metallic gasket, control valve lower end and be pressed on control valve back-moving spring, control valve back-moving spring lower end and be supported on control valve return spring holder, control to be formed between valve return spring holder and control valve seat to control valve oil chamber, it is realized by open loop shape oil-in on control valve seat that oil-feed oil duct on described piezoelectric element shell also connects with two control valves, control that valve return spring holder has control valve oil chamber, described drain tap is annular drain tap, drain tap connects with controlling valve oil chamber.
2, oil-feed oil duct is divided into three tunnels at piezoelectric element shell, wherein two-way respectively enters the annular oil-in on two control valve seats, control valve return spring holder of separately leading up to enters injection apparatus shell, and is further divided into two-way on injection apparatus shell, respectively enters the band of two needle-valves.
The invention provides a kind of combined double-pressure electricity fuel gas ejecting device, two mutually isostructural gas nozzles are combined in an injection apparatus shell, the injection of two-way combustion gas is controlled by two piezoelectric elements, fuel gas injection stability and motility are high, disclosure satisfy that the fuel gas injection amount demand of power on a large scale and system jet law variability requirements, simultaneously, utilize fuel sealing combustion gas, the problem that combustion gas is leaked by pintle nozzle match-ing parts can be solved preferably, it is possible to be effectively improved dynamic property and the fuel economy of electromotor.
The combined double-pressure electricity fuel gas ejecting device of the present invention mainly includes piezoelectricity and controls part 15, gas nozzle part 10, piezoelectric element I2, piezoelectric element II17, piezoelectric element shell 1, injection apparatus shell 3, gag lever post I7, gag lever post II12, needle-valve back-moving spring I6, needle-valve back-moving spring II13, inlet channel 5, oil-feed oil duct 18, central oil passage I8, central oil passage II14.Piezoelectric element shell 1 is internal arranges piezoelectric element I2, piezoelectric element II17 and oil-feed oil duct 18.nullPiezoelectricity controls part 15 and mainly includes oil-in I21、Oil-in II28、Drain tap 25、Control valve return spring holder 4、Control valve I20、Control valve seat I22、Control valve back-moving spring I23、Control valve oil chamber I24、Metallic gasket I19、Control valve II29、Control valve seat II30、Control valve back-moving spring II27、Control valve oil chamber II26、Metallic gasket II16、Sealing ring 31，The internally installed control valve I20 of control valve seat I22，The internally installed control valve II29 of control valve seat II30，Control valve seat I22 and control valve seat II30 outer end arrange sealing ring 31，Control valve I20 upper end to be stuck on metallic gasket I19，Control valve I20 lower end to be pressed on control valve back-moving spring I23，Control valve II29 upper end to be stuck on metallic gasket II16，Control valve II29 lower end to be pressed on control valve back-moving spring II27，Control valve back-moving spring I23、Control valve back-moving spring II27 lower end to be supported on control valve return spring holder 4，Control to be formed between valve return spring holder 4 and control valve seat I22 to control valve oil chamber I24，Control to be formed between valve return spring holder 4 and control valve seat II30 to control valve oil chamber II26，Control valve seat I22 has annular oil-in I21，Connection oil-feed oil duct 18 and control valve oil chamber I24，Control valve seat II30 has annular oil-in II28，Connection oil-feed oil duct 18 and control valve oil chamber II26，Control valve oil chamber II26 to connect with central oil passage I8，Control valve oil chamber II26 to connect with central oil passage II14，Control valve return spring holder 4 arranges annular drain tap 25，Connect with controlling valve oil chamber I24 and control valve oil chamber II26.nullGas nozzle part 10 is by needle-valve I34、Needle chamber I32、Pressure tank I35、Needle-valve base 36、Band I33、Needle chamber II11、Pressure tank II37、Needle-valve II39、Needle-valve body fastening nut 9、Band II38 etc. form，Needle-valve I34、It is internal that needle-valve II39 is arranged on needle-valve base 36，Needle chamber I32 is formed between needle-valve I34 and injection apparatus shell 3，Pressure tank I35 is formed between needle-valve I34 and needle-valve base 36，Needle chamber II11 is formed between needle-valve II39 and injection apparatus shell 3，Pressure tank II37 is formed between needle-valve II39 and needle-valve base 36，Needle-valve I34、Needle-valve II39 is fixed on injection apparatus shell 3 by needle-valve body fastening nut 9，Annular sealing strip I33 is set between needle-valve base 36 and needle-valve I34，Annular sealing strip II38 is set between needle-valve base 36 and needle-valve II39，Injection apparatus shell 3 arranges band fuel feed hole，Connection oil-feed oil duct 18 and band I33、Band II38.Injection apparatus shell 3 is internal arranges gag lever post I7, gag lever post II12, gag lever post I7 lower end is enclosed within inside needle-valve I34, gag lever post II12 lower end is enclosed within inside needle-valve II39, needle-valve back-moving spring I6 is enclosed within gag lever post I7 outer end, needle-valve back-moving spring I6 lower end is supported on needle-valve I34, needle-valve back-moving spring II13 is enclosed within gag lever post II12 outer end, needle-valve back-moving spring II13 lower end is supported on needle-valve II39, gag lever post I7 and needle-valve I34 arranges central oil passage I8 along axis, connection controls valve oil chamber I24 and needle chamber I32, gag lever post II12 and needle-valve II39 arranges central oil passage II14 along axis, connection controls valve oil chamber II26 and needle chamber II11.
It is an advantage of the current invention that:
Two mutually isostructural gas nozzles are combined in a fuel gas ejecting device, save space and simplify engine structure；Injection with two noticeable degree two-way combustion gas, fuel gas injection motility is high, it is capable of the fuel gas injection amount demand of power on a large scale, small-power output can be realized with single needle valve when namely working, high-power output can be realized simultaneously when working with two needle-valves, the order fuel gas injection rule of " first slow rear anxious " when first working with two needle-valves with the work of single needle valve, can be realized again；Controlling needle valve movement with piezoelectric element, needle-valve maximum lift is adjustable, and fuel gas injection amount and fuel gas injection rate control accuracy are high；Controlling needle-valve cavity pressure with fuel oil, control accuracy is high, it is possible to meet system jetting stability requirement preferably；Use fuel sealing combustion gas, be conducive to avoiding combustion gas to be leaked by pintle nozzle match-ing parts, improve fuel gas injection pressure and injection rate, improve dynamic property and the fuel economy of electromotor；The fuel oil at needle chamber and pintle nozzle match-ing parts place is same oil, and oil pressure is equal, it is to avoid the fuel oil static leakage at pintle nozzle match-ing parts place.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of combined double-pressure electricity fuel gas ejecting device of the present invention；
The piezoelectricity that Fig. 2 is combined double-pressure electricity fuel gas ejecting device of the present invention controls part-structure schematic diagram；
Fig. 3 is the gas nozzle part-structure schematic diagram of combined double-pressure electricity fuel gas ejecting device of the present invention.
Detailed description of the invention
Below in conjunction with legend, the present invention is described further:
In conjunction with Fig. 1-3, the combined double-pressure electricity fuel gas ejecting device of the present invention mainly includes piezoelectricity and controls part 15, gas nozzle part 10, piezoelectric element I2, piezoelectric element II17, piezoelectric element shell 1, injection apparatus shell 3, gag lever post I7, gag lever post II12, needle-valve back-moving spring I6, needle-valve back-moving spring II13, inlet channel 5, oil-feed oil duct 18, central oil passage I8, central oil passage II14.
Piezoelectricity controls part 15 and mainly includes oil-in I21, oil-in II28, drain tap 25, control valve return spring holder 4, control valve I20, control valve seat I22, controls valve back-moving spring I23, control valve oil chamber I24, metallic gasket I19, controls valve II29, control valve seat II30, control valve back-moving spring II27, control valve oil chamber II26, metallic gasket II16, sealing ring 31.Control valve I20, control valve II29 is arranged upper sealing surface and the lower sealing surface of taper, realize controlling valve oil chamber I24, controlling the switching between fuel oil inlet and outlet of fuel channel in the II26 of valve oil chamber, control valve return spring holder 4 arranges annular drain tap 25, connect with controlling valve oil chamber I24 and control valve oil chamber II26, sealing ring 31, metallic gasket I19, metallic gasket II16 play the effect of isolation, it is to avoid piezoelectric element I2 and piezoelectric element II17 touches piezoelectricity and controls the fuel oil that part 15 upwards leaks.
Gas nozzle part 10 is made up of needle-valve I34, needle chamber I32, pressure tank I35, needle-valve base 36, band I33, needle chamber II11, pressure tank II37, needle-valve II39, needle-valve body fastening nut 9, band II38 etc..Needle-valve I34, needle-valve II39 are pressed to needle-valve base 36 by needle-valve back-moving spring I6, needle-valve back-moving spring II13 respectively, annular sealing strip I33, band II38 it is respectively provided with between needle-valve base 36 and needle-valve I34, needle-valve II39, it is connected with oil-feed oil duct 18, seal the combustion gas leaked by pintle nozzle match-ing parts, pressure tank I35 and pressure tank II37 plays the effect of stable air pressure, thus reducing the air pressure fluctuation impact on fuel gas injection.
During dual fuel engine work, combustion gas enters from inlet channel 5 pressure tank I35 and pressure tank II37, fuel oil enters fuel gas ejecting device from oil-feed oil duct 18, it is divided into three tunnels at piezoelectric element shell 1, one tunnel enters oil-in I21, and a road enters oil-in II28, and control valve return spring holder 4 of leading up to enters injection apparatus shell 3, and it is divided into two-way on injection apparatus shell 3, respectively enter in band I33, band II38.Owing to the present invention is combined by the gas nozzle that two structures are identical, the mounting means of two nozzles is identical with operation principle, now sketches the work process of one of them.
During piezoelectric element I2 energising, piezoelectric element I2 extends, controlling valve I20 overcomes the hydraulic coupling of fuel oil in the spring force controlling valve back-moving spring I23 and control valve oil chamber I24 to move downward, the lower sealing surface controlling valve I20 is pressed in the lower sealing surface controlling valve return spring holder 4, control valve oil chamber I24 no longer to connect with drain tap 25, control valve oil chamber I24 to connect with oil-in I21, fuel oil passes through oil-in I21 from oil-feed oil duct 18, control valve oil chamber I24, central oil passage I8 enters in needle chamber I32, fuel oil acts on needle-valve I34 end face, overcome the spring force of needle-valve back-moving spring I13 by needle-valve I34 jack-up, combustion gas starts injection.During piezoelectric element I2 power-off, control valve back-moving spring I23 and the upper sealing surface controlling valve I20 is pressed on the upper sealing surface of control valve seat I22, control valve oil chamber I24 no longer to connect with oil-in I21, control valve oil chamber I24 to connect with drain tap 25, fuel oil in needle chamber I32 leaks in drain tap 25 by central oil passage I8, control valve oil chamber I24, and in needle chamber I31, pressure reduces, when pressure is reduced to certain value, needle-valve I34 is pressed to needle-valve base 36 by needle-valve back-moving spring I6, and combustion gas is not sprayed.
Combined double-pressure electricity fuel gas ejecting device has three kinds of mode of operations: the first is needle-valve I34 or needle-valve II39 work, i.e. only one of which nozzle injection combustion gas, and this mode of operation can realize small-power output；The second is that needle-valve I34 and needle-valve II39 works simultaneously, namely has two nozzle injection combustion gas, and this mode of operation can realize high-power output；The third is that the first needle-valve I34 needle-valve II39 again that starts working starts working, or the first needle-valve II39 needle-valve I34 again that starts working starts working, namely two nozzles start to spray the moment difference of combustion gas, and this mode of operation can realize the order fuel gas injection rule of " first slow rear anxious ".
Piezoelectric element I2, piezoelectric element II17 are due to piezoelectric effect deformation, and deformation length reliability is high, and fuel gas injection rate control accuracy is high.By changing length conduction time, can flexible piezoelectric element I2, piezoelectric element II17 deformation length, the lift change and control valve I20, controlling valve II29, again owing to controlling valve I20 control fuel oil turnover needle chamber I31, control valve II29 and control fuel oil turnover needle chamber II11, therefore, needle-valve I34, needle-valve II39 maximum lift also with conduction time length change adjustable, thus realizing the control of fuel gas injection amount.
During dual fuel engine work, the fuel oil in needle chamber I32, needle chamber II11 and the fuel oil in band I33, band II38 are same oil, and oil pressure is equal, it is to avoid the fuel oil static leakage at pintle nozzle match-ing parts place.Enter the fuel oil of band I33, band II38, make the combustion gas being accumulated in pressure tank I35, pressure tank II37 will not pass through the clearance leakage between needle-valve I34, needle-valve II39 and needle-valve base 36 needle-valve II39, thus avoiding the combustion gas static leakage of fuel gas ejecting device.In the process of needle-valve I34, needle-valve II39 motion, in pressure tank I35, pressure tank II37, combustion gas is upwards leaked by pintle nozzle match-ing parts, needle-valve back-moving spring I6, needle-valve back-moving spring II13 place will not be leaked under fuel oil effect in band I33, band II38, directly avoid the combustion gas dynamic leakage of fuel gas ejecting device.
As shown in the above description, combined double-pressure electricity fuel gas ejecting device work process is passed through the injection of two noticeable degree two-way combustion gas by two piezoelectric elements, fuel gas injection stability and motility are high, disclosure satisfy that the fuel gas injection amount demand of power on a large scale and system jet law variability requirements, simultaneously, utilize fuel sealing combustion gas, it is possible to solve the problem that combustion gas is leaked by pintle nozzle match-ing parts preferably, dynamic property and the fuel economy of electromotor can be effectively improved.
Claims (3)
1. a combined double-pressure electricity fuel gas ejecting device, including piezoelectricity control part, gas nozzle part and injection apparatus shell；It is characterized in that: described gas nozzle part includes the needle-valve group that two sets are made up of needle-valve, gag lever post and needle-valve back-moving spring, two needle-valve groups are arranged in injection apparatus shell by needle-valve base and the needle-valve body fastening nut shared, needle chamber is formed between each needle-valve and injection apparatus shell, there is pressure tank between each needle-valve and needle-valve base, in the middle of gag lever post, have central oil passage；Piezoelectricity control part includes two piezoelectric elements and the two set control valves that are arranged on piezoelectric element enclosure, and two sets control valves and share control valve return spring holders；Piezoelectric element shell is connected with injection apparatus shell and is integrally formed with gas nozzle part by the collecting of electrical controls, injection apparatus shell has two inlet channels, two inlet channels connect with two pressure tanks respectively, have, in the middle of piezoelectric element shell, control valve return spring holder and injection apparatus shell, the oil-feed oil duct being mutually communicated, oil-feed oil duct and two control valves on piezoelectric element shell connect, and control to have the oil duct connected with the central oil passage in the middle of two gag lever posts and drain tap on valve return spring holder.
2. combined double-pressure electricity fuel gas ejecting device according to claim 1, is characterized in that: have band, oil-feed oil duct and two band connections between each needle-valve and needle-valve base.
3. combined double-pressure electricity fuel gas ejecting device according to claim 1 and 2, it is characterized in that: described control valve is arranged on inside control valve seat, sealing ring is set outside control valve seat, control valve upper end and be stuck on metallic gasket, control valve lower end and be pressed on control valve back-moving spring, control valve back-moving spring lower end and be supported on control valve return spring holder, control to be formed between valve return spring holder and control valve seat to control valve oil chamber, it is realized by open loop shape oil-in on control valve seat that oil-feed oil duct on described piezoelectric element shell also connects with two control valves, control that valve return spring holder has control valve oil chamber, described drain tap is annular drain tap, drain tap connects with controlling valve oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111270.9A CN105781798B (en) | 2016-02-29 | 2016-02-29 | Combined double-pressure electricity fuel gas ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111270.9A CN105781798B (en) | 2016-02-29 | 2016-02-29 | Combined double-pressure electricity fuel gas ejecting device |
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| Publication Number | Publication Date |
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| CN105781798A true CN105781798A (en) | 2016-07-20 |
| CN105781798B CN105781798B (en) | 2018-01-19 |
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| CN201610111270.9A Active CN105781798B (en) | 2016-02-29 | 2016-02-29 | Combined double-pressure electricity fuel gas ejecting device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1111229A2 (en) * | 1999-12-16 | 2001-06-27 | Wärtsilä NSD Oy Ab | Fuel injection valve for reciprocating internal combustion engine |
| US6270024B1 (en) * | 2000-01-12 | 2001-08-07 | Woodward Governor Company | Hydraulically actuated fuel injector cartridge and system for high pressure gaseous fuel injection |
| CN103237979A (en) * | 2010-12-02 | 2013-08-07 | 瓦锡兰芬兰有限公司 | A fuel injection unit, a method of operating such and an internal combustion engine |
| CN204704029U (en) * | 2015-06-28 | 2015-10-14 | 贵州华烽电器有限公司 | Combination electric controlled injection valve |
-
2016
- 2016-02-29 CN CN201610111270.9A patent/CN105781798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1111229A2 (en) * | 1999-12-16 | 2001-06-27 | Wärtsilä NSD Oy Ab | Fuel injection valve for reciprocating internal combustion engine |
| US6270024B1 (en) * | 2000-01-12 | 2001-08-07 | Woodward Governor Company | Hydraulically actuated fuel injector cartridge and system for high pressure gaseous fuel injection |
| CN103237979A (en) * | 2010-12-02 | 2013-08-07 | 瓦锡兰芬兰有限公司 | A fuel injection unit, a method of operating such and an internal combustion engine |
| CN204704029U (en) * | 2015-06-28 | 2015-10-14 | 贵州华烽电器有限公司 | Combination electric controlled injection valve |
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| CN105781798B (en) | 2018-01-19 |
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