CN2779090Y - Diesel/LPG double fuel injector - Google Patents
Diesel/LPG double fuel injector Download PDFInfo
- Publication number
- CN2779090Y CN2779090Y CN 200520095499 CN200520095499U CN2779090Y CN 2779090 Y CN2779090 Y CN 2779090Y CN 200520095499 CN200520095499 CN 200520095499 CN 200520095499 U CN200520095499 U CN 200520095499U CN 2779090 Y CN2779090 Y CN 2779090Y
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- diesel oil
- lpg
- diesel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a mechanical type diesel oil / LPG double fuel injector which comprises a casing of the injector, a diesel fuel needle valve and an LPG needle valve mating part, which are assembled at the head of the casing of the injector, a diesel fuel needle valve spring and an LPG needle valve spring, which are assembled at the middle part of the casing of the injector, an LPG fuel booster pump arranged at the tail of the casing of the injector, two four-way valves arranged at the upper part of the LPG fuel booster pump, etc., wherein a diesel oil channel and an LPG fuel channel, which are mutually communicated, are respectively arranged in each component. When the injector works, first, a small amount of diesel oil is injected in a cylinder for using as pilot oil, and then the LPG fuel (liquefied petroleum gas) is injected. A diesel engine needs no structural change by using the injector, a pressure source is provided by an original fuel injection pump of the diesel engine, the pressure of the LPG fuel is enhanced by the booster pump arranged in the projector and then the LPG fuel can be injected in the cylinder. The injector is suitable for various compression ignition engines.
Description
Technical field
The utility model relates to the fuel injection system that is used for compression ignition internal combustion engine such as diesel engine etc., refers to a kind of mechanical diesel oil/LPG dual fuel injector particularly.
Background technique
Diesel engine uses LPG fuel (liquefied petroleum gas (LPG)), can reduce the pollution of diesel engine to atmosphere environment, can also improve the fuel structure of diesel engine.At application number is in the Chinese utility model patent specification of 00229897.X and 00202746.1, has described LPG fuel and has substituted part diesel oil, closed the imagination that enters the firing chamber, lighted by the diesel oil that sprays in the cylinder by suction tude and air pre-mixing.The advantage of this double fuel mode is that diesel engine does not need structural modification, but exists that volumetric efficiency descends, power descends, the liquefied petroleum gas (LPG) mixed-fuel burning proportion is not high, the more high shortcoming of HC discharging during the higher and low-load of NOx discharging during high load.Germany MAN company adopts two spargers respectively to in-cylinder injection diesel oil and rock gas on a separated type firing chamber diesel engine, with a spot of diesel oil ignited gas fuel, has solved the shortcoming that above-mentioned natural aspiration premixing exists preferably.But when adopting two spargers, the structure of diesel engine need be done bigger change.
Summary of the invention
The purpose of this utility model will provide a kind of diesel oil/LPG dual fuel injector exactly, this sparger utilizes the original Injection Pump of diesel engine that pressure source is provided, at first to a small amount of diesel oil of in-cylinder injection as light fluid, improve the pressure of LPG fuel then by the suction booster in the sparger, LPG fuel is sprayed in the cylinder, thereby can spray diesel oil and LPG fuel simultaneously.
For achieving the above object, diesel oil/LPG dual fuel injector that the utility model is designed includes case of sprayer, is assemblied in the diesel oil needle-valve and the LPG pintle nozzle match-ing parts of case of sprayer head, the diesel oil needle valve spring and the LPG needle valve spring that are assemblied in the case of sprayer middle part, the parts such as two position four-way valves that are assemblied in the LPG fuel booster pump of case of sprayer afterbody and are installed in LPG fuel booster pump top.
Described diesel oil needle-valve and LPG pintle nozzle match-ing parts have diesel oil needle-valve, LPG needle-valve, following needle-valve body and last needle-valve body, the inner chamber of diesel oil needle-valve and LPG needle-valve constitutes a mating plate, the outer cylinder surface of LPG needle-valve constitutes another mating plate with following needle-valve body, the LPG needle-valve is provided with the diesel oil passage, and following needle-valve body and last needle-valve body are provided with diesel oil passage and the LPG fuel channel that communicates.
Described LPG needle valve spring is installed in the last needle-valve body as its supporting base, is close to the afterbody of LPG needle-valve.Described diesel oil needle valve spring is installed between upper spring seat and the lower spring cup by upper spring joint and the lower spring joint that is connected its two ends.Be provided with the needle-valve push rod between lower spring joint and the diesel oil needle-valve, the diesel oil needle valve spring acts on the diesel oil needle-valve by lower spring joint, needle-valve push rod.Diesel oil passage that is provided with on upper spring seat and the lower spring cup and LPG fuel channel communicate with diesel oil passage and LPG fuel channel on the last needle-valve body respectively.
Described LPG fuel booster pump has the supercharging pump housing and installation suction booster piston within it.The supercharging pump housing is assemblied in the top of upper spring seat, and the suction booster piston is divided into suction booster low-pressure cavity and suction booster booster cavity with the inner chamber of the supercharging pump housing.The diesel oil passage that is provided with on the supercharging pump housing communicates with diesel oil passage on the upper spring seat.The LPG fuel channel while that is provided with on the supercharging pump housing communicates with the LPG fuel channel on suction booster booster cavity and the upper spring seat.
Described two position four-way valves have valve body, are installed in guiding valve and slide valve spring in the valve body.The centre of guiding valve is provided with the ring-type shallow slot, and this ring-type shallow slot and valve body form ring cavity and guiding valve is divided into two sections.Slide valve spring is close to the below that is installed in guiding valve.Diesel oil passage that is provided with on the valve body and LPG fuel channel communicate with diesel oil passage and LPG fuel channel on the supercharging pump housing respectively.Also be provided with LPG fuel pipe joint, high-pressure diesel pipe joint, diesel pilot pipe joint and diesel oil oil returning pipe joint on the valve body, LPG fuel pipe joint is provided with an one-way valve, and the high-pressure diesel pipe joint communicates with the last plane of guiding valve.
Also have five oilholes on the described valve body, wherein: the high-pressure diesel oil inlet hole cooperates with the last plane of guiding valve, the switching between control high-pressure diesel and the suction booster low-pressure cavity.Two diesel oil spill ports cooperate with the lower plane of guiding valve, the switching between control diesel oil return tube and the suction booster low-pressure cavity.Two diesel pilot oilholes cooperate with guiding valve and the formed ring cavity of valve body, the switching between control diesel pilot pipe and the diesel oil passage.
Working principle of the present utility model is such: under non-spray regime, diesel oil needle-valve and LPG needle-valve are taken a seat and are closed the outlet of diesel oil passage and LPG fuel channel.The guiding valve of two position four-way valves makes the suction booster low-pressure cavity communicate with two diesel oil spill ports under the effect of slide valve spring, is full of diesel oil in the suction booster low-pressure cavity.And guiding valve communicates with two diesel pilot oilholes with the ring cavity that valve body forms, and diesel pilot enters each diesel oil passage in the sparger, is full of its inner space.Simultaneously, LPG fuel enters the suction booster booster cavity by one-way valve, and each LPG fuel channel in the sparger, is full of its inner space.
Under spray regime, the diesel fuel injection pump of diesel engine is started working, one road high-pressure diesel as diesel pilot via a diesel pilot oilhole, ring cavity, another diesel pilot oilhole, enter each diesel oil passage in the sparger, and act on the conical surface of diesel oil needle-valve, overcome the pretightening force of diesel oil needle valve spring, the diesel oil needle-valve rises, and beginning is to in-cylinder injection diesel oil.
Another road high-pressure diesel acts on the guiding valve top, and it is descending to make guiding valve overcome slide valve spring power, and the lower plane of guiding valve at first cuts off the passage of two diesel oil spill ports and suction booster low-pressure cavity.After high-pressure diesel forced the descending segment distance H of guiding valve, the high-pressure diesel oil inlet hole was opened on the last plane of guiding valve, and high-pressure diesel enters the suction booster low-pressure cavity, promotes the suction booster descent of piston.This moment, the LPG fuel pressure in suction booster booster cavity and each LPG fuel channel raise, and acts on the conical surface of LPG needle-valve, overcomes the pretightening force of LPG needle valve spring owing to the effect of one-way valve, and the LPG needle-valve rises, and beginning is to in-cylinder injection LPG fuel.
Guiding valve continues descending, cut off two by the contact between the continuous diesel pilot oilhole of ring cavity, stop each diesel oil passage fuel feeding in sparger, the diesel oil pressure that acts on this moment on the conical surface of diesel oil needle-valve descends, under the reaction of diesel oil needle valve spring, the diesel oil needle-valve is taken a seat, and stops to spray diesel oil, and LPG fuel continues to spray.
The diesel fuel injection pump of diesel engine quits work, the diesel oil pressure that acts on the guiding valve top descends, slide valve spring power forces guiding valve up, at first make two diesel pilot holes enter ring cavity and communicate once more, close the high-pressure diesel oil inlet hole that communicates with the suction booster low-pressure cavity then, stop to suction booster low-pressure cavity fuel feeding, make the suction booster low-pressure cavity communicate again with two diesel oil spill ports, the pressure that acts on the suction booster piston descends rapidly, make the pressure in suction booster booster cavity and the LPG fuel channel also descend rapidly, under the reaction force of LPG needle valve spring, the LPG needle-valve is taken a seat, and whole course of injection finishes.
Advantage of the present utility model is: compared with prior art, it adopts single sparger, utilize the original Injection Pump of diesel engine that pressure source is provided, earlier to a small amount of diesel oil of in-cylinder injection as diesel pilot, improve the pressure of LPG fuel again by the suction booster in the sparger, LPG fuel is sprayed in the cylinder, spray the discharging that can significantly alleviate Nox and HC when having realized two kinds of fuel effectively.And it is simple and practical, working stability is reliable, and applied diesel engine also need not any structure and changes, and can extensively be suitable for various types of compression ignition internal combustion engines and use.
Description of drawings
Fig. 1 is the sectional structure schematic representation of a kind of diesel oil/LPG dual fuel injector;
Fig. 2 is the structure for amplifying schematic representation of diesel oil needle-valve and LPG pintle nozzle match-ing parts among Fig. 1;
Fig. 3 is the structure for amplifying schematic representation of LPG fuel booster pump among Fig. 1;
Fig. 4 is the structure for amplifying schematic representation of two four port valves among Fig. 1.
Among the figure: 1. diesel oil needle-valve, 2.LPG needle-valve, 3. descend needle-valve body, 4.LPG fuel channel, 5. diesel oil passage, 6.LPG needle valve spring, 7. go up needle-valve body, 8. needle-valve push rod, 9. lower spring cup, 10. lower spring joint, 11. diesel oil needle valve spring, 12. upper spring seat, 13. upper spring joint, 14. case of sprayer, 15. suction booster booster cavity, 16. suction booster piston, 17. suction booster low-pressure cavity, 18. the supercharging pump housing, 19. loam cake nut, 20. slide valve spring, 21. diesel oil spill port, 22. high-pressure diesel oil inlet hole, 23. one-way valve, 24. guiding valve, 25. valve body, 26. diesel pilot oilhole, 27. diesel pilot oilhole, 28. diesel oil spill port, 29.LPG fuel pipe joint, 30. high-pressure diesel pipe joint, 31. diesel oil needle-valve and LPG pintle nozzle match-ing parts, 32.LPG fuel booster pump, 33. two position four-way valves.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Be a kind of mechanical type diesel oil/LPG dual fuel injector that is used for compression ignition internal combustion engine shown in the figure.This sparger has the case of sprayer 14 of a tubular, the head of case of sprayer 14 is equipped with diesel oil needle-valve and LPG pintle nozzle match-ing parts 31, the middle part of case of sprayer 14 is equipped with diesel oil needle valve spring 11 and LPG needle valve spring 6 and associated components thereof, the afterbody of case of sprayer 14 is equipped with LPG fuel booster pump 32, and the top of LPG fuel booster pump 32 is equipped with two position four-way valves 33.
Diesel oil needle-valve and LPG pintle nozzle match-ing parts 31 have diesel oil needle-valve 1, LPG needle-valve 2, following needle-valve body 3 and last needle-valve body 7.LPG needle-valve 2 is the sleeve of diesel oil needle-valve 1 simultaneously, and diesel oil needle-valve 1 constitutes a mating plate with the inner chamber of LPG needle-valve 2, and the outer cylinder surface of LPG needle-valve 2 constitutes another mating plate with following needle-valve body 3.LPG needle-valve 2 is provided with diesel oil passage 5, and following needle-valve body 3 and last needle-valve body 7 are provided with diesel oil passage 5 and the LPG fuel channel 4 that communicates.
Also as the supporting base of LPG needle valve spring 6, LPG needle valve spring 6 is installed in the needle-valve body 7 last needle-valve body 7, is close to the afterbody of LPG needle-valve 2.11 of diesel oil needle valve springs are installed between upper spring seat 12 and the lower spring cup 9 by upper spring joint 13 and the lower spring joint 10 that is connected its two ends, and upper spring seat 12 and lower spring cup 9 are installed in the top of needle-valve body 7.Be connected with needle-valve push rod 8 between lower spring joint 10 and the diesel oil needle-valve 1, diesel oil needle valve spring 11 acts on the diesel oil needle-valve 1 by lower spring joint 10, needle-valve push rod 8.Diesel oil passage 5 that is provided with on upper spring seat 12 and the lower spring cup 9 and LPG fuel channel 4 communicate with diesel oil passage 5 and LPG fuel channel 4 on the last needle-valve body 7 respectively.
LPG fuel booster pump 32 has the supercharging pump housing 18 and installation suction booster piston 16 within it.Be connected by the outside thread of loam cake nut 19 with case of sprayer 14 tops, the supercharging pump housing 18 is fixed on the top of upper spring seat 12.Suction booster piston 16 is divided into suction booster low-pressure cavity 17 and suction booster booster cavity 15 with the inner chamber of the supercharging pump housing 18.The diesel oil passage 5 that is provided with on the supercharging pump housing 18 communicates with the diesel oil passage 5 on the upper spring seat 12, and 4 whiles of LPG fuel channel that are provided with on the supercharging pump housing 18 communicate with the LPG fuel channel 4 on suction booster booster cavity 15 and the upper spring seat 12.
Two position four-way valves 33 adopt to be threaded and are installed in the top of LPG fuel booster pump 32.Two position four-way valves 33 have valve body 25, are installed in guiding valve 24 and slide valve spring 20 in the valve body 25.The centre of guiding valve 24 is provided with the ring-type shallow slot, and this ring-type shallow slot and valve body 25 form ring cavity and guiding valve 24 is divided into two sections.Slide valve spring 20 is installed in the below of guiding valve 24.Diesel oil passage 5 that is provided with on the valve body 25 and LPG fuel channel 4 communicate with diesel oil passage 5 and LPG fuel channel 4 on the supercharging pump housing 18 respectively.LPG fuel pipe joint 29, high-pressure diesel pipe joint 30 also are installed on the valve body 25, and diesel pilot pipe joint and diesel oil oil returning pipe joint (not shown).LPG fuel pipe joint 29 places are provided with an one-way valve 23, and LPG fuel enters LPG fuel channel 4 and suction booster booster cavity 15 by one-way valve 23.High-pressure diesel pipe joint 30 communicates with the last plane of guiding valve 24.
Also have five oilholes 21,22,26,27,28 on the valve body 25, wherein: high-pressure diesel oil inlet hole 22 cooperates with the last plane of guiding valve 24, the switching between control high-pressure diesel and the suction booster low-pressure cavity 17.Diesel oil spill port 21,28 cooperates with the lower plane of guiding valve 24, the switching between control diesel oil return tube and the suction booster low-pressure cavity 17.Diesel pilot oilhole 26,27 cooperates with guiding valve 24 and valve body 25 formed ring cavities, the switching between control diesel pilot pipe and the diesel oil passage 5.
The utility model is under non-spray regime, and diesel oil needle-valve 1 and LPG needle-valve 2 are taken a seat and closed the outlet of diesel oil passage 5 and LPG fuel channel 4.The guiding valve 24 of two position four-way valves 33 makes the suction booster low-pressure cavity 17 of LPG fuel booster pump 32 communicate with two diesel oil spill ports 21,28 under the effect of slide valve spring 20, is full of diesel oil in the suction booster low-pressure cavity 17.And guiding valve 24 forms ring cavity with valve body 25 makes two diesel pilot oilholes 26,27 communicate, and diesel pilot enters each diesel oil passage 5 in the sparger, is full of its inner space.Simultaneously, LPG fuel enters each LPG fuel channel 4 in suction booster booster cavity 15 and the sparger by one-way valve 23, is full of its inner space.
Under spray regime, the diesel fuel injection pump of diesel engine is started working, one road high-pressure diesel is as diesel pilot, enter each diesel oil passage 5 in the sparger via diesel pilot oilhole 26, ring cavity and diesel pilot oilhole 27, and act on the conical surface of diesel oil needle-valve 1, overcome the pretightening force of diesel oil needle valve spring 11, diesel oil needle-valve 1 is risen, in cylinder, begin to spray diesel oil.
Another road high-pressure diesel acts directly on guiding valve 24 tops, and it is descending that guiding valve 24 overcomes the elastic force of slide valve spring 20.The lower plane of guiding valve 24 at first cuts off the passage of two diesel oil spill ports 21,28 and suction booster low-pressure cavity 17.After high-pressure diesel forces guiding valve 24 descending segment distance H, open high-pressure diesel oil inlet hole 22, high-pressure diesel enters suction booster low-pressure cavity 17, and it is descending to promote suction booster piston 16.Simultaneously, because the effect of one-way valve 23, the LPG fuel pressure in suction booster booster cavity 15 and the LPG fuel channel 4 raises, and acts on the conical surface of LPG needle-valve 2, overcomes the elastic force of LPG needle valve spring 6, and LPG needle-valve 2 is risen, and begins to spray LPG fuel in cylinder.
The diesel fuel injection pump of diesel engine quits work, the high-pressure diesel pressure that acts on guiding valve 24 tops descends, slide valve spring 2 forces guiding valve 24 up, at first making two diesel pilot oilholes 26,27 enter ring cavity communicates, close the high-pressure diesel oil inlet hole 22 that communicates with suction booster low-pressure cavity 17 then, stop to suction booster low-pressure cavity 17 fuel feeding.Make suction booster low-pressure cavity 17 communicate again with two diesel oil spill ports 21,28, the pressure that acts on the suction booster piston 16 descends rapidly, make the pressure in suction booster booster cavity 15 and the LPG fuel channel 4 also descend rapidly, under the effect of LPG needle valve spring 6, LPG needle-valve 2 is taken a seat, and whole course of injection finishes.
Claims (1)
1, a kind of diesel oil/LPG dual fuel injector, comprise case of sprayer (14), be assemblied in the diesel oil needle-valve and the LPG pintle nozzle match-ing parts (31) of case of sprayer (14) head, the diesel oil needle valve spring (11) and the LPG needle valve spring (6) that are assemblied in case of sprayer (14) middle part, two position four-way valves (33) that are assemblied in the LPG fuel booster pump (32) of case of sprayer (14) afterbody and are installed in LPG fuel booster pump (32) top, it is characterized in that:
Described diesel oil needle-valve and LPG pintle nozzle match-ing parts (31) have diesel oil needle-valve (1), LPG needle-valve (2), following needle-valve body (3) and last needle-valve body (7), diesel oil needle-valve (1) constitutes a mating plate with the inner chamber of LPG needle-valve (2), the outer cylinder surface of LPG needle-valve (2) constitutes another mating plate with following needle-valve body (3), LPG needle-valve (2) is provided with diesel oil passage (5), and following needle-valve body (3) and last needle-valve body (7) are provided with diesel oil passage (5) and the LPG fuel channel (4) that communicates;
Described LPG needle valve spring (6) is installed in the last needle-valve body (7) as its supporting base, the afterbody of being close to LPG needle-valve (2), described diesel oil needle valve spring (11) is installed between upper spring seat (12) and the lower spring cup (9) by upper spring joint (13) and the lower spring joint (10) that is connected its two ends, be provided with needle-valve push rod (8) between lower spring joint (10) and the diesel oil needle-valve (1), diesel oil needle valve spring (11) is by lower spring joint (10), needle-valve push rod (8) acts on the diesel oil needle-valve (1), and diesel oil passage (5) that upper spring seat (12) and lower spring cup (9) go up to be provided with and LPG fuel channel (4) communicate with diesel oil passage (5) and LPG fuel channel (4) on the last needle-valve body (7) respectively;
Described LPG fuel booster pump (32) has the supercharging pump housing (18) and installation suction booster piston (16) within it, the supercharging pump housing (18) is assemblied in the top of upper spring seat (12), suction booster piston (16) is divided into suction booster low-pressure cavity (17) and suction booster booster cavity (15) with the inner chamber of the supercharging pump housing (18), the diesel oil passage (5) that the supercharging pump housing (18) upward is provided with communicates with the diesel oil passage (5) on the upper spring seat (12), and LPG fuel channel (4) while that the supercharging pump housing (18) upward is provided with communicates with the LPG fuel channel (4) on suction booster booster cavity (15) and the upper spring seat (12);
Described two position four-way valves (33) have valve body (25), are installed in guiding valve (24) and slide valve spring (20) in the valve body (25), the centre of guiding valve (24) is provided with the ring-type shallow slot, and this ring-type shallow slot and valve body (25) form ring cavity and guiding valve (24) is divided into two sections; Diesel oil passage (5) that valve body (25) go up to be provided with and LPG fuel channel (4) communicate with diesel oil passage (5) and LPG fuel channel (4) on the supercharging pump housing (18) respectively; Also be provided with LPG fuel pipe joint (29), high-pressure diesel pipe joint (30), diesel pilot pipe joint and diesel oil oil returning pipe joint on the valve body (25), LPG fuel pipe joint (29) locates to be provided with an one-way valve (23), and high-pressure diesel pipe joint (30) communicates with the last plane of guiding valve (24);
Also have five oilholes (21,22,26,27,28) on the valve body (25), wherein: high-pressure diesel oil inlet hole (22) cooperates with the last plane of guiding valve (24), the switching between control high-pressure diesel and the suction booster low-pressure cavity (17); Diesel oil spill port (21,28) cooperates with the lower plane of guiding valve (24), the switching between control diesel oil return tube and the suction booster low-pressure cavity (17); Diesel pilot oilhole (26,27) cooperates with guiding valve (24) and the formed ring cavity of valve body (25), the switching between control diesel pilot pipe and the diesel oil passage (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095499 CN2779090Y (en) | 2005-03-14 | 2005-03-14 | Diesel/LPG double fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095499 CN2779090Y (en) | 2005-03-14 | 2005-03-14 | Diesel/LPG double fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779090Y true CN2779090Y (en) | 2006-05-10 |
Family
ID=36753178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520095499 Expired - Fee Related CN2779090Y (en) | 2005-03-14 | 2005-03-14 | Diesel/LPG double fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779090Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230987B (en) * | 2007-01-22 | 2011-03-30 | 伊斯帕诺-絮扎公司 | Two-stage fuel injector |
| CN101454543B (en) * | 2006-05-31 | 2011-05-04 | 坦尼科汽车操作有限公司 | Method and apparatus for reducing emissions in diesel engines |
| CN102105673A (en) * | 2008-06-27 | 2011-06-22 | 西港能源有限公司 | Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine |
| CN102159825A (en) * | 2008-07-15 | 2011-08-17 | 斯德曼数字系统公司 | Fuel injectors with intensified fuel storage and methods of operating engine therewith |
| CN101487433B (en) * | 2007-11-16 | 2011-12-14 | 德尔福技术控股有限公司 | Fuel injector |
| CN101187351B (en) * | 2006-10-21 | 2012-08-01 | 曼柴油机欧洲股份公司 | Fuel pump |
| CN103089506A (en) * | 2013-01-21 | 2013-05-08 | 江苏大学 | Device and method achieving liquid and gas dual fuel injection |
| CN103089505A (en) * | 2013-01-21 | 2013-05-08 | 江苏大学 | Device and method capable of achieving natural gas and diesel double-fuel jet |
| CN103180600A (en) * | 2010-10-28 | 2013-06-26 | 现代重工业株式会社 | Fuel-injection valve for an internal combustion engine |
| CN103452721A (en) * | 2012-06-04 | 2013-12-18 | 卡特彼勒公司 | Dual fuel injector and fuel system |
| CN103670851A (en) * | 2013-11-28 | 2014-03-26 | 上海交通大学 | Oil injector which is provided with double high-pressure oil pipes and is applicable to dimethyl ether fuel |
| CN103764994A (en) * | 2011-08-31 | 2014-04-30 | 卡特彼勒公司 | Dual fuel injector with hydraulic lock seal |
| WO2014139274A1 (en) * | 2013-03-14 | 2014-09-18 | 天津大学 | Dual-passage piezoelectric oil injector |
| CN102840072B (en) * | 2011-06-24 | 2016-03-23 | 卡特彼勒公司 | For the dual fuel injector of common rail system |
| CN108131228A (en) * | 2017-12-22 | 2018-06-08 | 湖南大学 | A kind of proportion adjustable alcohol-gasoline double fuel fuel injector |
-
2005
- 2005-03-14 CN CN 200520095499 patent/CN2779090Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454543B (en) * | 2006-05-31 | 2011-05-04 | 坦尼科汽车操作有限公司 | Method and apparatus for reducing emissions in diesel engines |
| CN101187351B (en) * | 2006-10-21 | 2012-08-01 | 曼柴油机欧洲股份公司 | Fuel pump |
| CN101230987B (en) * | 2007-01-22 | 2011-03-30 | 伊斯帕诺-絮扎公司 | Two-stage fuel injector |
| CN101487433B (en) * | 2007-11-16 | 2011-12-14 | 德尔福技术控股有限公司 | Fuel injector |
| CN102105673B (en) * | 2008-06-27 | 2013-10-09 | 西港能源有限公司 | Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine |
| CN102105673A (en) * | 2008-06-27 | 2011-06-22 | 西港能源有限公司 | Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine |
| CN102159825A (en) * | 2008-07-15 | 2011-08-17 | 斯德曼数字系统公司 | Fuel injectors with intensified fuel storage and methods of operating engine therewith |
| CN102159825B (en) * | 2008-07-15 | 2014-11-05 | 斯德曼数字系统公司 | Fuel injectors with intensified fuel storage and methods of operating engine therewith |
| CN103180600B (en) * | 2010-10-28 | 2015-07-15 | 现代重工业株式会社 | Fuel-injection valve for an internal combustion engine |
| CN103180600A (en) * | 2010-10-28 | 2013-06-26 | 现代重工业株式会社 | Fuel-injection valve for an internal combustion engine |
| CN102840072B (en) * | 2011-06-24 | 2016-03-23 | 卡特彼勒公司 | For the dual fuel injector of common rail system |
| CN103764994B (en) * | 2011-08-31 | 2016-05-18 | 卡特彼勒公司 | A kind of method of dual fuel injector, system and operation dual fuel injector |
| CN103764994A (en) * | 2011-08-31 | 2014-04-30 | 卡特彼勒公司 | Dual fuel injector with hydraulic lock seal |
| CN103452721A (en) * | 2012-06-04 | 2013-12-18 | 卡特彼勒公司 | Dual fuel injector and fuel system |
| CN103452721B (en) * | 2012-06-04 | 2017-05-10 | 卡特彼勒公司 | dual fuel injector and fuel system |
| CN103089505A (en) * | 2013-01-21 | 2013-05-08 | 江苏大学 | Device and method capable of achieving natural gas and diesel double-fuel jet |
| CN103089506A (en) * | 2013-01-21 | 2013-05-08 | 江苏大学 | Device and method achieving liquid and gas dual fuel injection |
| WO2014139274A1 (en) * | 2013-03-14 | 2014-09-18 | 天津大学 | Dual-passage piezoelectric oil injector |
| US9447761B2 (en) | 2013-03-14 | 2016-09-20 | Tianjin University | Dual-channel piezoelectric injector |
| CN103670851B (en) * | 2013-11-28 | 2015-10-28 | 上海交通大学 | Be applicable to two high-pressure oil pipe oil sprayers of dimethyl ether fuel |
| CN103670851A (en) * | 2013-11-28 | 2014-03-26 | 上海交通大学 | Oil injector which is provided with double high-pressure oil pipes and is applicable to dimethyl ether fuel |
| CN108131228A (en) * | 2017-12-22 | 2018-06-08 | 湖南大学 | A kind of proportion adjustable alcohol-gasoline double fuel fuel injector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2779090Y (en) | Diesel/LPG double fuel injector | |
| CN1854480B (en) | Method to extend lean ignition limit within internal combustion engine | |
| KR101677862B1 (en) | Fuel gas injection valve, dual-fuel gas engine, and fuel gas injection method | |
| CN203022939U (en) | Dual fuel injection valve device with mixed-type nozzle and for crude oil engine and gas engine | |
| CN103089505B (en) | Device and method capable of achieving natural gas and diesel double-fuel jet | |
| US20070246561A1 (en) | Twin needle valve dual mode injector | |
| EP2740915B1 (en) | Spark ignition engine | |
| US10273891B2 (en) | Gaseous fuel internal combustion engine and operating method therefor | |
| US8783229B2 (en) | Internal combustion engine, combustion charge formation system, and method | |
| US20110232601A1 (en) | Compression ignition engine with blended fuel injection | |
| CN103277223A (en) | Piston valve type double fuel ejector driven by improved cam shaft | |
| US6959699B2 (en) | Injection of fuel vapor and air mixture into an engine cylinder | |
| CN1818370A (en) | Composite microdisplacement oil jetter of IC engine with piezoelectric control | |
| CN109519589B (en) | Novel pressure regulating valve structure | |
| CN101943065A (en) | Variable compression ratio engine | |
| US9279350B2 (en) | Intake valve closure control for dual-fuel engines | |
| WO2008088416A1 (en) | Internal combustion engine and operating method therefor | |
| US5950596A (en) | Fuel injector deflector | |
| CN111305956A (en) | Variable mode engine suitable for various liquid fuels | |
| US20080098983A1 (en) | Cool combustion emissions solution for auto-igniting internal combustion engine | |
| US20080314363A1 (en) | Actuated cool combustion emissions solution for auto-igniting internal combustion engine | |
| CN104061058A (en) | Premixing compression internal-combustion engine and operation method thereof | |
| CN1773096A (en) | Non-electric controlling diesel engine fuel injecting method and fuel injector thereof | |
| WO2005099364A3 (en) | Emission control for an internal combustion engine | |
| CN2893176Y (en) | Contracting and expanding spray tube precombustion chamber separating combustion chamber diesel internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |