CN202789201U - Gas injection guide pipe assembly of natural gas engine - Google Patents
Gas injection guide pipe assembly of natural gas engine Download PDFInfo
- Publication number
- CN202789201U CN202789201U CN2012204446751U CN201220444675U CN202789201U CN 202789201 U CN202789201 U CN 202789201U CN 2012204446751 U CN2012204446751 U CN 2012204446751U CN 201220444675 U CN201220444675 U CN 201220444675U CN 202789201 U CN202789201 U CN 202789201U
- Authority
- CN
- China
- Prior art keywords
- gas injection
- guide pipe
- gas
- injection guide
- pipe assembly
- 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 - Lifetime
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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 relates to a gas injection guide pipe assembly of a natural gas engine. The gas injection guide pipe assembly comprises a gas injection guide pipe, a transitional joint, a top surface O-shaped ring and a side surface O-shaped ring, and is characterized in that the metal gas injection guide pipe is welded on the transitional joint; the top surface O-shaped ring is assembled on the top surface of the transitional joint; and the side surface O-shaped ring is assembled on the side surface of the transitional joint. Through the adoption of the gas injection guide pipe assembly, the accurate feeding of gas in all cylinders of the natural gas engine can be ensured, and the uniformity and the air fuel ratio of gas fed in the cylinders can be controlled effectively, and meanwhile, the gas injection guide pipe assembly has the advantages that the detachability is achieved, the assembly process is good, and the realization is easy.
Description
Technical field
The utility model relates to a kind of natural gas engine gas injection catheter assembly, belongs to the engine gas supply system.
Background technique
At present, the air supply system of natural gas engine mainly contains three kinds of forms: hybrid, single-point discharge, multipoint sequential injection.In single-point discharge and hybrid fuel supply mode, rock gas and air enter cylinder combustion again and burn after mixing fully in air inlet pipeline, so the mixed gas of each cylinder is because the impact of air inlet pipeline, cause the air inflow fluctuation of each cylinder mixed gas larger, lack of homogeneity.Multipoint sequential injection is by the fuel gas injection conduit, and the combustion gas that gas nozzle is sprayed is directly guided in the engine inlets near the intake valve, guaranteed that each cylinder fuel accurately controls, and reduces cyclical variations, effectively controls air fuel ratio.
Summary of the invention
The purpose of this utility model is to provide a kind of natural gas engine gas injection catheter assembly, it can guarantee the accurate supply of each cylinder combustion gas of natural gas engine, has effectively controlled uniformity and the air fuel ratio of each cylinder air inlet, has simultaneously detachability, good assembling process easily realizes.
The technical solution of the utility model is achieved in that natural gas engine gas injection catheter assembly, is comprised of fuel gas injection conduit, transit joint, end face O type ring and side O type ring; It is characterized in that: metal fuel gas injection conduit is welded on the transit joint, and at transit joint end face assembling end face O type ring, at assembling side, transit joint side O type ring.
Good effect of the present utility model is that it has detachability, and gas conduct pipe changed to metal tube by former nylon tube, avoid because engine flashback causes the gas conduct pipe sintering, adopt the sealing of O type ring between while and the gentle rail of intake manifold, effectively reduce the leakage rate of rock gas, reduction has improved the reliability of product to the pollution of environment.
Description of drawings
Fig. 1 is natural gas engine gas conduit assembly generalized section of the present utility model.
Embodiment
Be further described of the present utility model below in conjunction with accompanying drawing: as shown in Figure 1, natural gas engine gas injection catheter assembly is comprised of fuel gas injection conduit, transit joint, end face O type ring 3 and side O type ring 4; It is characterized in that: metal fuel gas injection conduit 1 is welded on the transit joint 2, and at transit joint end face assembling end face O type ring 3, at assembling side, transit joint 2 sides O type ring 4.
Fuel gas injection conduit assembly is fitted on the intake manifold, and seals by end face O type ring 3 between the intake manifold, and the gas rail is fixed on fuel gas injection conduit assembly top, seals by side O type ring 4.After the assembling, fuel gas injection conduit assembly outlet port is facing to the engine intake valve ingress, the guiding of fuel gas injection conduit assembly is passed through in the combustion gas of therefore ejecting from gas nozzle, be directly injected to the engine intake valve ingress, guaranteed that combustion gas can all enter in the cylinder, realized the accurate supply of each cylinder combustion gas, the seal action of while end face O type ring 3 and side O type ring 4, effectively reduced the leakage rate of rock gas, power character and Economy to motor provide guarantee, this assembly is detachable simultaneously, has improved the manufacturability of the assembling of motor.
Claims (1)
1. natural gas engine gas injection catheter assembly is comprised of fuel gas injection conduit, transit joint, end face O type ring and side O type ring; It is characterized in that: metal fuel gas injection conduit is welded on the transit joint, and at transit joint end face assembling end face O type ring, at assembling side, transit joint side O type ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204446751U CN202789201U (en) | 2012-09-04 | 2012-09-04 | Gas injection guide pipe assembly of natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204446751U CN202789201U (en) | 2012-09-04 | 2012-09-04 | Gas injection guide pipe assembly of natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789201U true CN202789201U (en) | 2013-03-13 |
Family
ID=47816476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204446751U Expired - Lifetime CN202789201U (en) | 2012-09-04 | 2012-09-04 | Gas injection guide pipe assembly of natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134401A (en) * | 2015-06-08 | 2015-12-09 | 中国第一汽车股份有限公司 | Natural gas engine air cylinder cover assembly suitable for multi-point injection system |
| CN106050479A (en) * | 2016-06-13 | 2016-10-26 | 重庆潍柴发动机有限公司 | Gas injection valve and injection pipe structure and installation and arrangement method |
| CN109386403A (en) * | 2018-09-29 | 2019-02-26 | 哈尔滨工程大学 | It is a kind of for have twin-inlet gas, dual fuel engine bivalve type fuel gas ejecting device and its control method |
-
2012
- 2012-09-04 CN CN2012204446751U patent/CN202789201U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134401A (en) * | 2015-06-08 | 2015-12-09 | 中国第一汽车股份有限公司 | Natural gas engine air cylinder cover assembly suitable for multi-point injection system |
| CN106050479A (en) * | 2016-06-13 | 2016-10-26 | 重庆潍柴发动机有限公司 | Gas injection valve and injection pipe structure and installation and arrangement method |
| CN109386403A (en) * | 2018-09-29 | 2019-02-26 | 哈尔滨工程大学 | It is a kind of for have twin-inlet gas, dual fuel engine bivalve type fuel gas ejecting device and its control method |
| CN109386403B (en) * | 2018-09-29 | 2021-10-26 | 哈尔滨工程大学 | Double-valve type gas injection device for gas and dual-fuel engine with double gas inlet channels and control method of double-valve type gas injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |