CN105649819A - Direct-injecting gas injector with inproved opening and closing performance - Google Patents
Direct-injecting gas injector with inproved opening and closing performance Download PDFInfo
- Publication number
- CN105649819A CN105649819A CN201511035962.1A CN201511035962A CN105649819A CN 105649819 A CN105649819 A CN 105649819A CN 201511035962 A CN201511035962 A CN 201511035962A CN 105649819 A CN105649819 A CN 105649819A
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- CN
- China
- Prior art keywords
- gas injector
- casing pipe
- sealing socket
- sealed casing
- closing element
- 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.)
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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
- 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
-
- 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
-
- 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
- F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
-
- 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
- F02M21/0296—Manufacturing or assembly; Materials, e.g. coatings
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
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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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a gas injector for injecting fuel directly into a combustion chamber of an internal combustion engine, comprising a valve closing element (2) for releasing and closing a passage opening (3), a valve body (4), a first actuator (5) for operating the valve closing element ( 2), a sealing sleeve (6) which is movably arranged in the valve body (4), a first sealing seat (11) arranged between the sealing sleeve (6) and the valve closing element (2), and a second sealing seat (12) arranged between the sealing sleeve (6 ) and the valve body (4), wherein the valve closing element (2) is at least partially disposed in the sealing sleeve (6), and passage opening (3) to be released and to be sealed by the valve closing element (2) is arranged in the sealing sleeve (6).
Description
Technical field
The present invention relates to one and be directly blown into formula gas injector, it has the closedown performance opening performance and improvement of improvement.
Background technology
Except liquid fuel, in oil engine, recently also use gaseous fuel, such as Sweet natural gas or hydrogen more and more. Compared with the injector spraying into liquid fuel, due to the different volume to be introduced of fuel, other opening and closing performance occurs when being directly blown into the gas injector in combustion chamber. Gaseous fuel is directly blown in combustion chambers of internal combustion engines yet to present improve potentiality significantly. Compared with liquid fuel, bigger volume of fuel must be introduced in the case of a gaseous fuel.
Summary of the invention
Relatively, according to the present invention, the having the following advantages for the formula that is directly blown into gas injector gaseous fuel being directly blown in combustion chambers of internal combustion engines of the feature with claim 1, it is possible to realize the closedown performance opening performance and improvement of the improvement of gas injector. Especially can keep switching time very short such that it is able to realize the quick and reliable response performance of gas injector. According to the present invention, this thus realizes: gas injector comprises valve closing element, and described valve closing element is for discharging and the pass through openings of close encapsulation sleeve pipe. Sealed casing pipe is can be arranged in valve body in the way of moving. It is provided with the first actuator, for operating valve closing element. Valve closing element is arranged in Sealed casing pipe at least partly at this. In addition, treat that the pass through openings being discharged by valve closing element and closing is arranged in Sealed casing pipe self. At this, between Sealed casing pipe and valve closing element, it is provided with the first sealing socket, and between Sealed casing pipe and valve body, it is provided with the 2nd sealing socket. Thus make the post fuel opened in pass through openings can not only flow through pass through openings and flow through the inside of Sealed casing pipe simultaneously, and can from the periphery by-pass flow of Sealed casing pipe. Thus can ensure the high volumetric flow rate during opening the time period.
Dependent claims illustrates the preferred extension of the present invention.
Described gas injector be preferably included on the circulating direction of gas injector to be engaged on Sealed casing pipe after pressure equalizing chamber and jet hole. Described jet hole is after this is engaged on pressure equalizing chamber on the circulating direction of gas injector. By described jet hole, gaseous fuel is directly blown in the combustion chamber of oil engine.Make it possible to opening the pressure reaching almost equal in state before and after Sealed casing pipe is on circulating direction by the pressure equalizing chamber after being engaged on Sealed casing pipe. Thus, valve closing element can at least run on temporary pressure balance ground. Thus, especially can only with little power by valve closing element from seat lift and thus realize open and close performance fast and reliably. Thus, especially can keep very short switching time and can accurately observe some switching time.
When there is throttle point between pressure equalizing chamber and jet hole, it is achieved that the pressure equilibrium fast especially in jet valve region before and after Sealed casing pipe. Thus realize after valve closing element lifts from the pass through openings being arranged on Sealed casing pipe in pressure equalizing chamber pressure increase fast and and then need not be big power just can carry out the further opening procedure of valve closing element.
Further preferably, described jet hole is directly formed in valve body. Thus make it possible to realize that one is very compact and simple structure.
Another kind of preferred configuration according to the present invention, the first diameter of the first sealing socket is less than the Second bobbin diameter of the 2nd sealing socket. By selecting minor diameter on the first sealing socket, the power of opening required for opening valve closing element is especially made significantly to reduce.
In order to the shock-absorbing capacity of the improvement in the stopping property that realizes in gas injector closing condition and closedown process, the first sealing socket and/or the 2nd sealing socket are preferably configured as the elastomerics sealing socket having at least one elastomer element, preferably having two elastomer elements.
Another kind of preferred configuration according to the present invention, the 3rd sealing socket that described gas injector is also included between Sealed casing pipe and valve body. 3rd sealing socket is metal or ceramic seal seat preferably. First and/or the 2nd protection for high combustor temperature of sealing socket thus can be especially realized by the 3rd sealing socket. 3rd sealing socket of nonelastic body is preferably arranged closer to combustion chamber than the first and second sealing sockets.
In order to have the structure of compact as far as possible and miniaturization, valve closing element preferably has the portion of taking, for taking dynamic seal sleeve pipe after predefined free stroke of passing by the opening procedure of gas injector. This makes it possible to realize the one very favourable and simple structure of cost.
Alternatively being provided with the 2nd actuator, it arranges and is used for lifting the sealing socket of Sealed casing pipe from sealing sleeve pipe. At this, the first actuator and the 2nd actuator such as control by a control unit associated with each other.
Another kind of preferred configuration according to the present invention, described gas injector also comprises the first spring element, and it acts on Sealed casing pipe, for being remained in closing condition by Sealed casing pipe. In opening procedure, then must overcome the spring power of the first spring element by the first actuator.
Described gas injector preferably has the 2nd spring element, and it acts on valve closing element, for being remained in closing condition by valve closing element.
Valve closing element is preferably the valve closing element of opening type inwardly.
The present invention also relates to a kind of oil engine, comprises combustion chamber and the gas injector according to the present invention, and wherein said gas injector is directly arranged on combustion chamber, to be directly blown in combustion chamber by gaseous fuel.
Accompanying drawing explanation
With reference to accompanying drawing, a preferred embodiment of the present invention is described in detail below. Illustrate at accompanying drawing:
The schematic cross sectional views of Fig. 1 formula that is directly blown into gas injector according to one embodiment of present invention in closing condition.
Embodiment
With reference to Fig. 1, gas injector 1 according to the first advantageous embodiment of the invention is described in detail below.
As shown in Figure 1, gas injector 1 comprises valve closing element 2, and it is needle in the present embodiment. X-X is in the axis of this mark gas injector. Valve closing element 2 discharges pass through openings 3, and this pass through openings is arranged in Sealed casing pipe 6 in the present embodiment.
As shown in Figure 1, Sealed casing pipe 6 is for having cover region 60 and the sleeve-shaped element at the end 61, and wherein pass through openings 3 is formed at the end 61. In addition, Sealed casing pipe 6 is also provided with the annular stop portion 62 towards inner orientation of the end contrary with pass through openings 3 of Sealed casing pipe 6.
Gas injector 1 also comprises the electromagnetic actuators 5 with armature 50, coil 51 and interior pole 52 constructed in a known way. Alternatively, it is possible to use piezo actuator.
Armature 50 is connected with valve closing element 2 at this and makes it possible to be lifted from the first sealing socket 11 by valve closing element 2 when coil 51 is energized.
As shown in Figure 1, the first sealing socket 11 is arranged in pass through openings 3 between valve closing element 2 and Sealed casing pipe 6 at this.
2nd sealing socket 12 is arranged between Sealed casing pipe 6 and valve body 4. Valve body 4 self has multiple jet hole 9.
Also being configured with the portion of taking 20 on valve closing element 2, its stopper section 62 with Sealed casing pipe 6 after the predefined free stroke F that passes by contacts. Thus Sealed casing pipe 6 can be made also to move after the free stroke F that passes by the opening procedure of valve closing element 2.
At this, Sealed casing pipe 6 by the first spring element 18 towards the direction of the combustion chamber 10 of oil engine by pre-tight.
In addition, between Sealed casing pipe 6 and valve body 4, the 3rd sealing socket 13 it is provided with. 3rd sealing socket 13 is the sealing socket of nonelastic body and preferably has the sealing mating member of two metals.
In addition, in order to guide valve closing element 2, valve body 4 is fixed with positioning disk 15. Positioning disk 15 is provided with multiple hole 17 for allowing gaseous fuel pass through. Valve closing element 2 is directed on the guiding area 16 of positioning disk 15.
Valve closing element 2 also by the 2nd spring element 19 towards direction, combustion chamber by pre-tight. Positioning disk 15 is used as the spring support of the first spring element 18 simultaneously. First sealing socket 11 comprises the first elastomer element 31, and it is arranged on Sealed casing pipe 6 in the present embodiment. 2nd elastomer element 32 is arranged on the 2nd sealing socket 12, is wherein provided with the flange 63 of orientation towards the outside on Sealed casing pipe 61, and this flange seals on the 2nd elastomer element 32.
First diameter D1 of the first sealing socket 11 is less than the Second bobbin diameter D2 of the 2nd sealing socket 12 at this. In addition, the circulating direction of gas injector 1 is provided with pressure equalizing chamber 7 (see Fig. 1) after Sealed casing pipe 6. Pressure equalizing chamber 7 is between Sealed casing pipe 6 and the combustion chamber side end of valve body 4. Jet hole 9 in valve body 4 is arranged in valve body like this at this so that there is restricted flow path 8 from pressure equalizing chamber 7 points of flowing-paths being clipped to each jet hole 9 or just simply there is gap.
At this, according to the mode of operation of the gas injector 1 of the present invention as follows described in. When being blown into of gaseous fuel of enforcement, electromagnetic actuators 5 is activated and armature 50 is attracted to the interior pole 52 of electromagnetic actuators. Thus, the valve closing element 2 being permanently connected with armature 50 lifts from the first sealing socket 11 and discharges pass through openings 3. Thus, gaseous fuel can be other through being flowed into pressure equalizing chamber 7 through pass through openings 3 through the inside of Sealed casing pipe 6 from valve closing element 2.
Due to the throttle point produced by restricted flow path 8 between pressure equalizing chamber 7 and jet hole 9, pressure equalizing chamber 7 establishes the approximately equalised stress level of gaseous fuel pressure level before predefined and pass through openings 3 fast. Thus realize valve closing element 2 combustion chamber side end region in pressure equilibrium such that it is able to do not have big power to carry out the further opening procedure of valve closing element 2 with expending. Therefore opening in situation, valve closing element 2 is temporary pressure balance. In closing condition, the system pressure of gaseous fuel is at the valve closing element of the auxiliary opening type inwardly of seal aspect.
Valve closing element 2 is arranged in Sealed casing pipe 6 in this part.
Because the first diameter D1 of the first sealing socket 11 is relatively little, carry out lifting valve closing element 2 from the first sealing socket 11 so can expend with relatively little power.
Therefore according to the present invention, by arranging restricted flow path 8, in opening procedure, between pressure equalizing chamber 7 and jet hole 9, obtain, by the pass through openings 3 between the side towards combustion chamber of Sealed casing pipe 6 and the side deviating from combustion chamber of Sealed casing pipe 6, the pressure difference effectively playing pneumatic action. Thus same expending with little power further Sealed casing pipe 6 can be attracted in the direction of arrow A after the free stroke F that passes by, make at this moment there is the big cross section for combustion gas being sent to jet hole 9, wherein the throttle point on restricted flow path 8 is more and more widened along with the motion (arrow B) of Sealed casing pipe 6, until this throttle point completely dissolve and no longer include throttling action.
Therefore, can providing a kind of gas injector for being directly blown in combustion chambers of internal combustion engines by gaseous fuel according to the present invention, it has the very short time of response for open and close. In addition, ensureing the high leakproofness of gas injector 1 by arranging multiple sealing socket, wherein especially Sealed casing pipe 6 is pressed in the 2nd sealing socket 12 and the 3rd sealing socket 13 by the high pressure of gaseous fuel. 3rd sealing socket 13 is also used as the stopper section of the return stroke of gauge Sealed casing pipe 6 at this. At this, the gas injector of the present invention have compact and can the structure that advantageously manufactures of cost and there is no complicated component, thus described gas injector is particularly suitable for batch micro operations.
In addition, according to the present invention, the different requirements that gas injector 1 relatively simply directly to be blown into for gaseous fuel by the different configurations of the length of free stroke F adjust with practical situation.
Claims (14)
1. gas injector for being directly blown in combustion chambers of internal combustion engines by fuel, comprising:
-for the valve closing element (2) of release and closed pass through openings (3),
-valve body (4),
-for operating the actuator (5) of described valve closing element (2),
-Sealed casing pipe (6) can be arranged in the way of moving in described valve body (4),
-the first sealing socket (11) between described Sealed casing pipe (6) and described valve closing element (2),
-the 2nd sealing socket (12) between described Sealed casing pipe (6) and described valve body (4),
-wherein, described valve closing element (2) is arranged in described Sealed casing pipe (6) at least partly,
-wherein, treat to be arranged in described Sealed casing pipe (6) by the release of described valve closing element (2) and closed described pass through openings (3).
2. gas injector according to claim 1, it is characterized in that, also being included on the circulating direction of this gas injector and be connected the pressure equalizing chamber (7) after described Sealed casing pipe (6) and comprise at least one jet hole (9), wherein said jet hole (9) is connected after described pressure equalizing chamber (7) on the circulating direction of gas injector.
3. gas injector according to claim 2, it is characterised in that, between described pressure equalizing chamber (7) and described jet hole (9), it is provided with throttle point (8).
4. gas injector according to claim 3, it is characterised in that, described throttle point (8) is formed between described Sealed casing pipe (6) and described valve body (4).
5. according to the gas injector one of claim 2 to 4 Suo Shu, it is characterised in that, described jet hole (9) is arranged in described valve body (4).
6. according to the gas injector one of aforementioned claim Suo Shu, it is characterised in that, first diameter (D1) of the first sealing socket (11) is less than the Second bobbin diameter (D2) of the 2nd sealing socket (12).
7. according to the gas injector one of aforementioned claim Suo Shu, it is characterized in that, first sealing socket (11) and/or the 2nd sealing socket (12) are configured to have the elastomerics sealing socket of at least one elastomer element (31,32).
8. according to the gas injector one of aforementioned claim Suo Shu, it is characterized in that, also comprising the 3rd sealing socket (13), wherein, described 3rd sealing socket (13) is arranged between described Sealed casing pipe (6) and described valve body (4).
9. gas injector according to claim 8, it is characterised in that, described 3rd sealing socket (13) is metallic seal seat or ceramic seal seat.
10. gas injector according to claim 8 or claim 9, it is characterised in that, described 3rd sealing socket (13) is arranged closer to combustion chamber than the first sealing socket (11) and the 2nd sealing socket (12).
11. according to the gas injector one of aforementioned claim Suo Shu, it is characterized in that, described valve closing element (2) has the portion of taking (20), for taking described Sealed casing pipe (6) after the free stroke (F) passing by predefined in the opening procedure of gas injector.
12. according to the gas injector one of claim 1 to 10 Suo Shu, it is characterised in that, there is the 2nd actuator, described 2nd actuator arranges and is used for described Sealed casing pipe (6) is lifted from the 2nd sealing socket (12).
13. according to the gas injector one of aforementioned claim Suo Shu, it is characterized in that, also comprising the first spring element (18), described first spring element acts on described Sealed casing pipe (6), for being remained in closing condition by sealing sleeve pipe (6).
14. according to the gas injector one of aforementioned claim Suo Shu, it is characterized in that, there is the 2nd spring element (19), described 2nd spring element acts on described valve closing element (2), for being remained in closing condition by this valve closing element (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014224348.3 | 2014-11-28 | ||
| DE102014224348.3A DE102014224348A1 (en) | 2014-11-28 | 2014-11-28 | Direct injection gas injector with improved opening and closing behavior |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649819A true CN105649819A (en) | 2016-06-08 |
| CN105649819B CN105649819B (en) | 2019-11-29 |
Family
ID=55967742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511035962.1A Active CN105649819B (en) | 2014-11-28 | 2015-11-27 | Opening and closing performance with improvement is directly blown into formula gas injector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105649819B (en) |
| DE (1) | DE102014224348A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165746A (en) * | 2017-06-28 | 2017-09-15 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat |
| CN110945694A (en) * | 2017-07-17 | 2020-03-31 | 罗伯特·博世有限公司 | Dosing device for controlling a gaseous medium |
| CN115234407A (en) * | 2022-07-22 | 2022-10-25 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115355114A (en) * | 2022-09-06 | 2022-11-18 | 一汽解放汽车有限公司 | Gas injector and automobile |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016212075A1 (en) * | 2016-07-04 | 2018-01-04 | Robert Bosch Gmbh | Valve for injecting gaseous fuel |
| DE102020203194B4 (en) | 2020-03-12 | 2025-02-06 | Erwin Junker Grinding Technology A.S. | INTERNAL COMBUSTION ENGINE FOR OPERATION WITH GASEOUS FUEL, ESPECIALLY HYDROGEN, AND HIGH-PRESSURE VALVE FOR INTRODUCING GASEOUS FUEL INTO THE INTERNAL COMBUSTION ENGINE |
| DE102021202619A1 (en) | 2021-03-18 | 2022-09-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Gas injector with two sealing seats |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1589369A (en) * | 2001-11-20 | 2005-03-02 | 韦斯特波特研究公司 | Dual fuel injection valve and method of operating a dual fuel injection valve |
| CN1662742A (en) * | 2002-06-19 | 2005-08-31 | 罗伯特·博世有限公司 | Fuel injection valve for an internal combustion engine |
| DE102004055265A1 (en) * | 2004-11-17 | 2006-05-18 | Robert Bosch Gmbh | Fuel injection device for e.g. diesel engine, has sealing edges arranged in inner and outer valve needles to block fuel inflow to respective injection nozzles, where inner valve needle abuts sealingly against region of outer valve needle |
| FR2992396A1 (en) * | 2012-06-22 | 2013-12-27 | Bosch Gmbh Robert | FUEL INJECTOR SWITCHING VALVE |
| US20140224903A1 (en) * | 2011-09-20 | 2014-08-14 | Denso Corporation | Fuel injector and method for manufacturing fuel injector |
-
2014
- 2014-11-28 DE DE102014224348.3A patent/DE102014224348A1/en active Pending
-
2015
- 2015-11-27 CN CN201511035962.1A patent/CN105649819B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1589369A (en) * | 2001-11-20 | 2005-03-02 | 韦斯特波特研究公司 | Dual fuel injection valve and method of operating a dual fuel injection valve |
| CN1662742A (en) * | 2002-06-19 | 2005-08-31 | 罗伯特·博世有限公司 | Fuel injection valve for an internal combustion engine |
| DE102004055265A1 (en) * | 2004-11-17 | 2006-05-18 | Robert Bosch Gmbh | Fuel injection device for e.g. diesel engine, has sealing edges arranged in inner and outer valve needles to block fuel inflow to respective injection nozzles, where inner valve needle abuts sealingly against region of outer valve needle |
| US20140224903A1 (en) * | 2011-09-20 | 2014-08-14 | Denso Corporation | Fuel injector and method for manufacturing fuel injector |
| FR2992396A1 (en) * | 2012-06-22 | 2013-12-27 | Bosch Gmbh Robert | FUEL INJECTOR SWITCHING VALVE |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165746A (en) * | 2017-06-28 | 2017-09-15 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat |
| CN107165746B (en) * | 2017-06-28 | 2023-06-09 | 哈尔滨工程大学 | A bypass type externally guided gas injection valve with floating valve seat |
| CN110945694A (en) * | 2017-07-17 | 2020-03-31 | 罗伯特·博世有限公司 | Dosing device for controlling a gaseous medium |
| CN110945694B (en) * | 2017-07-17 | 2023-06-13 | 罗伯特·博世有限公司 | Metering device for controlling gaseous medium |
| CN115234407A (en) * | 2022-07-22 | 2022-10-25 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115234407B (en) * | 2022-07-22 | 2024-04-09 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115355114A (en) * | 2022-09-06 | 2022-11-18 | 一汽解放汽车有限公司 | Gas injector and automobile |
| CN115355114B (en) * | 2022-09-06 | 2023-10-20 | 一汽解放汽车有限公司 | Gas injector and motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105649819B (en) | 2019-11-29 |
| DE102014224348A1 (en) | 2016-06-02 |
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