CN207454129U - A kind of fuel gas injection valve mounting structure of engine - Google Patents
A kind of fuel gas injection valve mounting structure of engine Download PDFInfo
- Publication number
- CN207454129U CN207454129U CN201721546761.2U CN201721546761U CN207454129U CN 207454129 U CN207454129 U CN 207454129U CN 201721546761 U CN201721546761 U CN 201721546761U CN 207454129 U CN207454129 U CN 207454129U
- Authority
- CN
- China
- Prior art keywords
- fuel gas
- injection valve
- gas injection
- cylinder head
- flange face
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model belongs to marine engine manufacture mounting technology field, more particularly to a kind of fuel gas injection valve mounting structure of engine, the fuel gas injection valve is mounted on engine cylinder head, a through hole is offered on the engine cylinder head, the through hole is through in the air intake conduit inside cylinder head, the playpipe of fuel gas injection valve passes through the through hole, and protrudes out in the air intake pipe inside cylinder head.Fuel gas injection valve is directly installed on the cylinder head of engine by the utility model, that is, simplifies the mounting structure of fuel gas injection valve, also ensures the structural stability of fuel gas injection valve；The playpipe outlet of fuel gas injection valve is directed towards the angle shape of air intake conduit inner end in the utility model, can prevent combustion gas from flowing back in air intake duct.
Description
Technical field
The utility model belongs to marine engine manufacture mounting technology field, and in particular to a kind of fuel gas injection of engine
Valve mounting structure.
Background technology
The fuel gas injection valve of combustion type engine of the prior art mostly be mounted on engine cylinder head outside air into
On air pipe, this mounting means needs to set special mounting base or pipe fitting, connection structure with upper in air intake conduit
Load, is not easy to assemble, the structural stability of fuel gas injection valve cannot ensure, and installation cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of a kind of fuel gas injection valve of engine convenient for fuel gas injection valve assembling
Mounting structure.
To achieve the above object, the utility model provides following technical scheme：A kind of fuel gas injection valve peace of engine
Assembling structure, the fuel gas injection valve are mounted on engine cylinder head, a through hole are offered on the engine cylinder head, which passes through
It wears in the air intake conduit to cylinder head, the playpipe of fuel gas injection valve is protruded out to through the through hole inside cylinder head
Air intake pipe in.
The fuel gas injection valve is equipped with the first flange face that is bonded with cylinder head top surface, and fuel gas injection valve passes through perpendicular to the
The bolt that one flange face is set is fixedly connected with cylinder head top surface, and the through hole is opened on cylinder head top surface to be closed with first flange face paste
Region in, the playpipe penetrates the through hole from first flange face, between the first flange face and cylinder head top surface surround
The playpipe is provided with the first sealing ring.
The playpipe protrudes out to one end in air intake pipe as angle shape, and the angle is towards air intake conduit
Inner end set.
Second flange face is additionally provided on the fuel gas injection valve, the second flange face is vertical with first flange face, and the
The air inlet end face of two flange faces and cylinder head towards same direction, the fuel gas inlet of the fuel gas injection valve be located at this second
On flange face, second flange face is used to connect gas supply pipeline.
Fuel gas inlet is provided with the second sealing ring on the second flange face.
The utility model has technical effect that：Fuel gas injection valve is directly installed on the cylinder head of engine by the utility model
On, that is, the mounting structure of fuel gas injection valve is simplified, also ensures the structural stability of fuel gas injection valve；It is fired in the utility model
The playpipe outlet of gas jet valve is directed towards the angle shape of air intake conduit inner end, can prevent combustion gas in air intake duct
Reflux.
Description of the drawings
Fig. 1 is the sectional view for the fuel gas injection valve mounting structure that the embodiment of the utility model is provided；
Fig. 2 is the dimensional structure diagram for the fuel gas injection valve that the embodiment of the utility model is provided.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
As shown in Figure 1, 2, the fuel gas injection valve mounting structure of a kind of engine, the fuel gas injection valve 20, which is mounted on, to be started
On machine cylinder head 10, a through hole 12 is offered on the engine cylinder head 10, the through hole 12 be through to air inside cylinder head 10 into
In air pipe 11, the playpipe 21 of fuel gas injection valve 20 protrudes out to the air inlet inside cylinder head 10 through the through hole 12
In pipeline 11.The fuel gas injection valve 20 is equipped with the first flange face 23 being bonded with 10 top surface of cylinder head, and fuel gas injection valve 20 is logical
It crosses the bolt set perpendicular to first flange face 23 to be fixedly connected with 10 top surface of cylinder head, the through hole 12 is opened in 10 top surface of cylinder head
In the upper region being bonded with first flange face 23, the playpipe 21 penetrates the through hole 12 from first flange face 23, and described the
The playpipe 21 is provided with the first sealing ring 25 between 10 top surface of one flange face 23 and cylinder head.The playpipe 21 protrudes out
One end in air intake conduit 11 is angle shape, and the angle is set towards the inner end of air intake conduit 11.The combustion
Second flange face 24 is additionally provided on gas jet valve 20, the second flange face 24 is vertical with first flange face 23, and second flange
The air inlet end face of face 24 and cylinder head 10 towards same direction, the fuel gas inlet 22 of the fuel gas injection valve 20 be located at this
On two flange faces 24, second flange face 24 is used to connect gas supply pipeline.Around fuel gas inlet on the second flange face 24
22 are provided with the second sealing ring 26.Fuel gas injection valve 20 is directly installed on the cylinder head 10 of engine by the utility model, i.e., simple
Change the mounting structure of fuel gas injection valve 20, also ensure the structural stability of fuel gas injection valve 20；Combustion gas in the utility model
The playpipe 21 of injection valve 20 exports the angle shape for being directed towards 11 inner end of air intake conduit, and combustion gas can be prevented in air inlet
Reflux in pipe.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of fuel gas injection valve mounting structure of engine, it is characterised in that：The fuel gas injection valve (20), which is mounted on, starts
On machine cylinder head (10), a through hole (12) is offered on the engine cylinder head (10), which is through in cylinder head (10)
In the air intake conduit (11) in portion, the playpipe (21) of fuel gas injection valve (20) protrudes out to cylinder through the through hole (12)
In the internal air intake conduit (11) of head (10).
2. fuel gas injection valve mounting structure according to claim 1, it is characterised in that：It is set on the fuel gas injection valve (20)
There is the first flange face (23) being bonded with cylinder head (10) top surface, fuel gas injection valve (20) perpendicular to first flange face (23) by setting
The bolt put is fixedly connected with cylinder head (10) top surface, and the through hole (12) is opened on cylinder head (10) top surface and first flange face
(23) in the region of fitting, the playpipe (21) penetrates the through hole (12), the first flange from first flange face (23)
The playpipe (21) is provided with the first sealing ring (25) between face (23) and cylinder head (10) top surface.
3. fuel gas injection valve mounting structure according to claim 1, it is characterised in that：The playpipe (21) protrudes out to sky
One end in gas air inlet pipeline (11) is angle shape, and the angle is set towards the inner end of air intake conduit (11).
4. fuel gas injection valve mounting structure according to claim 2, it is characterised in that：On the fuel gas injection valve (20) also
Equipped with second flange face (24), the second flange face (24) is vertical with first flange face (23), and second flange face (24) with
The air inlet end face of cylinder head (10) is located at second method towards same direction, the fuel gas inlet (22) of fuel gas injection valve (20)
On blue face (24), second flange face (24) are used to connect gas supply pipeline.
5. fuel gas injection valve mounting structure according to claim 4, it is characterised in that：Ring on the second flange face (24)
Fuel gas inlet (22) is provided with the second sealing ring (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546761.2U CN207454129U (en) | 2017-11-17 | 2017-11-17 | A kind of fuel gas injection valve mounting structure of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546761.2U CN207454129U (en) | 2017-11-17 | 2017-11-17 | A kind of fuel gas injection valve mounting structure of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454129U true CN207454129U (en) | 2018-06-05 |
Family
ID=62280421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721546761.2U Active CN207454129U (en) | 2017-11-17 | 2017-11-17 | A kind of fuel gas injection valve mounting structure of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454129U (en) |
-
2017
- 2017-11-17 CN CN201721546761.2U patent/CN207454129U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |