CN105041538A - Fuel gas distributor for multi-point injection gas engine - Google Patents
Fuel gas distributor for multi-point injection gas engine Download PDFInfo
- Publication number
- CN105041538A CN105041538A CN201510359702.3A CN201510359702A CN105041538A CN 105041538 A CN105041538 A CN 105041538A CN 201510359702 A CN201510359702 A CN 201510359702A CN 105041538 A CN105041538 A CN 105041538A
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- China
- Prior art keywords
- gas
- hole
- distributor
- longitudinal
- dispensing orifice
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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 invention discloses a fuel gas distributor for a multi-point injection gas engine. A connector of the fuel gas distributor comprises a flanged base, an intermediate and a T-shaped structure of a distributor from top to bottom, wherein the upper end surface of the flanged base is connected with a gas injection valve; the lower end surface of the flanged base is mounted on an air cylinder cover; and the intermediate and the distributor extend into a gas inlet path. A gas collecting hole in the middle of the flanged base is communicated with a conveying hole which penetrates through the intermediate; and the axis of the gas collecting hole deviates from that of the conveying hole in parallel. The lower end of the distributor and the longitudinal axis form a wedged surface with an included angle of Theta; a lateral distribution hole and a longitudinal distribution hole in the distributor form an included angle of alpha and are communicated with the conveying hole; the longitudinal distribution hole is in same-direction communication with the conveying hole; and output ends of the lateral distribution hole and the longitudinal distribution hole are respectively aligned to directions of far and near gas inlet doors in the gas inlet path respectively. Natural gas is uniformly distributed at two gas inlet doors of the gas inlet path of the air cylinder cover, so that fuel gas is prevented from flowing back, the natural gas and air form a uniform gas mixture in a combustion chamber, and the uniform gas mixture is sufficiently combusted.
Description
Technical field
The present invention relates to a kind of multi-point injection gas engine gas distributor, belong to engine manufacturing technology field.
Background technique
Single-point discharge gas engine, due to each cylinder gas inlet amount inequality, fuel gas supply flexible pipe vapour lock, the air feed response problems such as speed is slower, thus causes that burning is unbalanced, engine thermal efficiency is low.200920222853.4 a number Chinese patent application provides a kind of engine fuel gas distributor for multi-point injection vehicle scheme, be each cylinder list and join a snifting valve, snifting valve is integrated with one for connecting the discharge conection of high pressure hose, for transport gas in intake duct.It is said that the program ensure that the gaseous-pressure entering cylinder body is consistent, improve air feed speed of response, make engine running more smooth-going.But, for Four valve (2 intake valves, 2 exhaust valves) natural gas engine, combustion gas, along intake duct, enters into firing chamber by 2 intake valves of cylinder head, need to make the gas quantity uniform distribution flowing through these 2 intake valve places enter firing chamber, uniform mixed gas can be formed, and then Thorough combustion, also to ensure that the combustion gas sprayed all enters into firing chamber in addition, and can not be back in intake duct, cause combustion gas waste and assemble at intake duct.The scheme that above-mentioned patent application proposes obviously cannot meet this requirement.
Summary of the invention
Object of the present invention overcomes the deficiency of above-mentioned prior art exactly, provides a kind of multi-point injection gas engine gas distributor.
The object of the present invention is achieved like this: a kind of multi-point injection gas engine gas distributor, be made up of snifting valve and connecting body, it is characterized in that described connecting body is for be followed successively by flange seat from top to bottom, the T-shaped structure of intermediate and dispensing body, the upper-end surface of flange seat is connected with snifting valve, the lower end surface of flange seat is arranged in cylinder head, intermediate and dispensing body stretch into intake duct, the gas collection hole be positioned in the middle part of flange seat is communicated with the sprocket hole running through intermediate, dispensing body lower end is the wedge surface becoming angle theta with longitudinal axis, longitudinal dispensing orifice on it is communicated with in the same way with sprocket hole, side direction dispensing orifice becomes angle α with longitudinal dispensing orifice and is communicated with sprocket hole, the output terminal of side direction dispensing orifice and longitudinal dispensing orifice aims at the direction of far and near two intake valves in intake duct respectively.
In order to realize object of the present invention better, the wedge surface of described dispensing body and longitudinal axis angle theta are 20 ° ~ 25 °.
In order to realize object of the present invention better, the axis of described sprocket hole and the axis being parallel of gas collection hole depart from.
In order to realize object of the present invention better, the axis angle α of described side direction dispensing orifice and longitudinal dispensing orifice is 40 ° ~ 50 °.
Technological scheme of the present invention, by arranging dispensing orifice structure in gas distributor, make rock gas in 2 intake valve place uniform distributions of cylinder head intake duct, ensure that the combustion gas of ejection all enters into firing chamber, prevent combustion gas from assembling in a large number at intake duct, thus make rock gas form uniform mixed gas with air in firing chamber, and then Thorough combustion.
Accompanying drawing explanation
Fig. 1 is the multi-point injection natural-gas motor gas distributor of the embodiment of the present invention.
Fig. 2 is the generalized section of connecting body in Fig. 1.
Be labeled as in figure: 1-snifting valve, 2-connecting body, 3-flange seat, 4-intermediate, 5-dispensing body, 6-cylinder head, 7-intake duct, 8-gas collection hole, 9-sprocket hole, 10-side direction dispensing orifice, the longitudinal dispensing orifice of 11-.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Referring to accompanying drawing 1, the multi-point injection gas engine gas distributor of the present embodiment, is made up of snifting valve 1 and connecting body 2.Connecting body 2 is the T-shaped structure being followed successively by flange seat 3, intermediate 4 and dispensing body 5 from top to bottom.Referring to accompanying drawing 2, the upper-end surface of flange seat 3 is connected with snifting valve 1, the lower end surface of flange seat 3 is arranged in cylinder head 6, intermediate 4 and dispensing body 5 stretch into intake duct 7, the gas collection hole 8 be positioned in the middle part of flange seat 3 is communicated with the sprocket hole 9 running through intermediate 4, and the axis of gas collection hole 8 and the axis being parallel of sprocket hole 9 depart from.Dispensing body 5 lower end is wedge surface, wedge surface and longitudinal axis angle theta are 20 ° ~ 25 °, longitudinal dispensing orifice 11 on it is communicated with in the same way with sprocket hole 9, side direction dispensing orifice 10 is with longitudinal dispensing orifice 11 one-tenth angle and be communicated with sprocket hole 9, and side direction dispensing orifice 10 is 40 ° ~ 50 ° with the axis angle α of longitudinal dispensing orifice 11.The intake valve that what longitudinal dispensing orifice was corresponding is relative to Fighter Inlet near-end, combustion gas of its ejection will enter into the intake valve of near-end; The intake valve of what side direction dispensing orifice was corresponding is far-end, combustion gas of its ejection will enter into the intake valve of far-end.Due to two axially bored line angulations, the combustion gas being injected to intake duct can be made not interfere with each other, and combustion gas can be made can not to remain in intake duct.Coordinate wedge surface relative to cylinder head air inlet passage center line deflection θ angle again, the amount of natural gas regulating intake valve distally to distribute, reach the object of amount of natural gas distributed uniform at 2 valve places making to enter into near-end, far-end.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (4)
1. a multi-point injection gas engine gas distributor, be made up of snifting valve and connecting body, it is characterized in that described connecting body is for be followed successively by flange seat from top to bottom, the T-shaped structure of intermediate and dispensing body, the upper-end surface of flange seat is connected with snifting valve, the lower end surface of flange seat is arranged in cylinder head, intermediate and dispensing body stretch into intake duct, the gas collection hole be positioned in the middle part of flange seat is communicated with the sprocket hole running through intermediate, dispensing body lower end is the wedge surface becoming angle theta with longitudinal axis, longitudinal dispensing orifice on it is communicated with in the same way with sprocket hole, side direction dispensing orifice becomes angle α with longitudinal dispensing orifice and is communicated with sprocket hole, the output terminal of side direction dispensing orifice and longitudinal dispensing orifice aims at the direction of far and near two intake valves in intake duct respectively.
2. multi-point injection gas engine gas distributor according to claim 1, is characterized in that the wedge surface of described dispensing body and longitudinal axis angle theta are 20 ° ~ 25 °.
3. multi-point injection gas engine gas distributor according to claim 1, is characterized in that the axis of described gas collection hole and the axis being parallel of sprocket hole depart from.
4. multi-point injection gas engine gas distributor according to claim 1, is characterized in that the axis angle α of described side direction dispensing orifice and longitudinal dispensing orifice is 40 ° ~ 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359702.3A CN105041538A (en) | 2015-06-26 | 2015-06-26 | Fuel gas distributor for multi-point injection gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359702.3A CN105041538A (en) | 2015-06-26 | 2015-06-26 | Fuel gas distributor for multi-point injection gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041538A true CN105041538A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510359702.3A Pending CN105041538A (en) | 2015-06-26 | 2015-06-26 | Fuel gas distributor for multi-point injection gas engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN105041538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075609A (en) * | 2019-12-16 | 2020-04-28 | 中车大连机车车辆有限公司 | Multi-point injection gas engine and gas mixer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150691A (en) * | 1991-01-25 | 1992-09-29 | Nissan Motor Co., Ltd. | Engine fuel injector |
| CN201517452U (en) * | 2009-09-28 | 2010-06-30 | 北京福田环保动力股份有限公司 | Engine fuel gas distributor for multi-point injection vehicle |
| CN101868615A (en) * | 2007-11-23 | 2010-10-20 | 罗伯特·博世有限公司 | Fuel injection device |
| CN203532101U (en) * | 2013-09-24 | 2014-04-09 | 吉林大学 | Device with variable fuel gas injection position and number of nozzles |
| CN103998760A (en) * | 2011-12-13 | 2014-08-20 | 卡特彼勒发动机有限及两合公司 | Cylinder head with fuel guiding portion |
| CN104040137A (en) * | 2011-12-28 | 2014-09-10 | Ge延巴赫两合无限公司 | Pre-chamber system for an internal combustion engine |
-
2015
- 2015-06-26 CN CN201510359702.3A patent/CN105041538A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150691A (en) * | 1991-01-25 | 1992-09-29 | Nissan Motor Co., Ltd. | Engine fuel injector |
| CN101868615A (en) * | 2007-11-23 | 2010-10-20 | 罗伯特·博世有限公司 | Fuel injection device |
| CN201517452U (en) * | 2009-09-28 | 2010-06-30 | 北京福田环保动力股份有限公司 | Engine fuel gas distributor for multi-point injection vehicle |
| CN103998760A (en) * | 2011-12-13 | 2014-08-20 | 卡特彼勒发动机有限及两合公司 | Cylinder head with fuel guiding portion |
| CN104040137A (en) * | 2011-12-28 | 2014-09-10 | Ge延巴赫两合无限公司 | Pre-chamber system for an internal combustion engine |
| CN203532101U (en) * | 2013-09-24 | 2014-04-09 | 吉林大学 | Device with variable fuel gas injection position and number of nozzles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075609A (en) * | 2019-12-16 | 2020-04-28 | 中车大连机车车辆有限公司 | Multi-point injection gas engine and gas mixer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |