CN201034051Y - Manifold inlet of natural gas engine - Google Patents
Manifold inlet of natural gas engine Download PDFInfo
- Publication number
- CN201034051Y CN201034051Y CNU2007200936619U CN200720093661U CN201034051Y CN 201034051 Y CN201034051 Y CN 201034051Y CN U2007200936619 U CNU2007200936619 U CN U2007200936619U CN 200720093661 U CN200720093661 U CN 200720093661U CN 201034051 Y CN201034051 Y CN 201034051Y
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas
- engine
- intake manifold
- air
- 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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- Characterised By The Charging Evacuation (AREA)
Abstract
The utility model relates to a gas inlet manifold for natural gas engine, which is characterized in that a brass sleeve tube is positioned at the connection of a gas nozzle and is pressed into the gas inlet manifold in the interference; the outlet of the sleeve tube is connected with a natural gas guide tube which is connected with the mouth of the inlet valve of the air passage. The utility model has the advantages of avoiding the leakage of the natural gas during the engine operation, reducing the loss of the natural gas, securing the engine to operate normally, lowering the environment pollution and ensuring the ratio of air to gas in the mixed gas to be consistent.
Description
Technical field:
The utility model relates to a kind of intake manifold of natural gas engine, the special-purpose intake manifold of the automatically controlled sequence-injection natural gas engine of particularly a kind of multiple spot.
Background technique:
The main effect of intake manifold is that air or inflammable mixture are assigned to cylinder uniformly for multicylinder engine, and the quality of its design directly influences the performance of motor, the reliability of work and the compactedness that whole motor is arranged, the convenience of maintenance on vehicle.For the supercharged diesel engine intake manifold, its main effect is that pressurized air is transported in the cylinder, and its setting type is little to the performance impact of diesel engine.The suction tude of therefore general diesel engine has been sacrificed good air distribution performance for the compactedness of structural design.The many exploitation again on the basis of diesel engine of heavy natural gas engine forms.Therefore natural gas engine has kept a lot of structural characteristicss of diesel engine.But for natural gas engine, what enter cylinder is not pure air, but the inflammable mixture of rock gas and air.Engine intake manifold adopts cast aluminium alloy material, because the condition restriction of cast aluminium itself exists some as defectives such as sand holes, shrinkage porosite, pores unavoidably, after blast nozzle is installed on the suction tude, some microdefects of suction tude can be leaked a part of rock gas more or less during work, cause engine operation undesired.In order to guarantee the compactedness of motor, suction tude has adopted case structure when design, if directly be ejected into rock gas in the suction tude, because specific gravity of natural gas is less than air, certainly will cause and have the part rock gas and be suspended on the air, cause rock gas accumulating in suction tude, this will make the higher emitted dose with appointment of the actual amount of natural gas that enters each cylinder, can cause the air fuel ratio difference of each cylinder.Air fuel ratio difference is crossed conference increases engine operation shakiness, noise increasing, gas consumption amount, even deterioration of emission is caught fire in generation.
Summary of the invention:
The purpose of this utility model is to provide a kind of intake manifold of natural gas engine, in view of the particularity of natural gas engine intake manifold, has adopted the side air inlet of the mid-suction port of suction tude, the case structure of no air intake branch; Its compact structure can improve charging efficiency, and guarantee each cylinder intake uniformity under the condition of using air intake pressurized.
The technical solution of the utility model is achieved in that the intake manifold of natural gas engine, it is characterized in that: a copper sleeve pipe has been installed in the joint in blast nozzle hole, and the sleeve pipe interference is pressed into intake manifold; The sleeve pipe outlet is connected with the rock gas guide pipe and links to each other with the inlet valve port of air flue.
Good effect of the present utility model is to have stopped motor natural gas leaking in use, guarantees the motor proper functioning, reduces gas consumption, improves Security, reduces the pollution to environment, guarantees the air fuel ratio unanimity of each cylinder mixed gas.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a partial schematic diagram of the present utility model;
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further: as shown in Figure 1, 2, the intake manifold of natural gas engine is characterized in that: a copper sleeve pipe 2 has been installed in the joint in blast nozzle hole, and the sleeve pipe interference is pressed into intake manifold 1; The sleeve pipe outlet is connected with rock gas guide pipe 3 and links to each other with the inlet valve port of air flue.In engine working process, fresh air enters intake manifold through throttle valve body along intake manifold 1 inlet, enters in the air flue by intake manifold, according to each cylinder working order, opens the back at intake valve and flows in the cylinder.Rock gas after decompression, enters into the gas rail through the rock gas filter cleaner from the steel cylinder to the decompressor,,, entered in the cylinder after inlet valve port place and air mixing the rock gas guide pipe 3 that gas spraying links to each other with sleeve pipe 2 in the intake manifold by blast nozzle.
Claims (1)
1. the intake manifold of natural gas engine, it is characterized in that: a copper sleeve pipe (2) has been installed in the joint in blast nozzle hole, and the sleeve pipe interference is pressed into intake manifold (1); The sleeve pipe outlet is connected with rock gas guide pipe (3) and links to each other with the inlet valve port of air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200936619U CN201034051Y (en) | 2007-04-29 | 2007-04-29 | Manifold inlet of natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200936619U CN201034051Y (en) | 2007-04-29 | 2007-04-29 | Manifold inlet of natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034051Y true CN201034051Y (en) | 2008-03-12 |
Family
ID=39194942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200936619U Expired - Lifetime CN201034051Y (en) | 2007-04-29 | 2007-04-29 | Manifold inlet of natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034051Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696101A (en) * | 2015-02-27 | 2015-06-10 | 吉林大学 | Direction-changing spray pipe for air inlet passage multi-point injection of dual-fuel engine |
-
2007
- 2007-04-29 CN CNU2007200936619U patent/CN201034051Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696101A (en) * | 2015-02-27 | 2015-06-10 | 吉林大学 | Direction-changing spray pipe for air inlet passage multi-point injection of dual-fuel engine |
| CN104696101B (en) * | 2015-02-27 | 2017-02-22 | 吉林大学 | Direction-changing spray pipe for air inlet passage multi-point injection of dual-fuel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FAW GROUP CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111027 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111027 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Patentee after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee before: China FAW Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |