CN202140190U - Backfire preventive cylinder cover of secondary gas inlet cavity of gas engine - Google Patents
Backfire preventive cylinder cover of secondary gas inlet cavity of gas engine Download PDFInfo
- Publication number
- CN202140190U CN202140190U CN201120153948U CN201120153948U CN202140190U CN 202140190 U CN202140190 U CN 202140190U CN 201120153948 U CN201120153948 U CN 201120153948U CN 201120153948 U CN201120153948 U CN 201120153948U CN 202140190 U CN202140190 U CN 202140190U
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Abstract
A backfire preventive cylinder cover of a secondary gas inlet cavity of a gas engine comprises a cylinder head, a rocker arm, a cross axle, a spring, a gas exhaust door and an air exhaust door. The cylinder head is further provided with the gas inlet door, a gas inlet cavity parting plane, an air inlet door, a gas inlet cavity, an air inlet cavity and a waste gas exhaust cavity, the gas inlet door is communicated with the gas inlet cavity, the air inlet door is communicated with the air inlet cavity, and the waste gas exhaust cavity and the gas exhaust door are communicated with the air exhaust door. Gas and air enter the gas engine respectively via the independent cavities, and respectively enter a cylinder to be mixed and burnt via the respective inlet doors, so that the gas can be burnt sufficiently, the gas is prevented from being mixed into an air cavity and is completely isolated from the outside of the air, and the gas and the air are mixed and burnt in the cylinder. The backfire preventive cylinder cover has the advantages of preventing backfire, preventing blasting of exhaust pipes, reducing the temperature of the cylinder and exhaust temperature, increasing power and the like, and is widely applied to gas engines.
Description
Technical field
The utility model relates to the gas engine cylinder cap, and particularly a kind of gas engine air inlet divides chamber backfireproof cylinder cap.
Background technique
Used gas engine cylinder cap; All be on the diesel engine cylinder cover basis, to carry out local improvement to form; Its existence exists following shortcoming or deficiency: 1. combustion gas, air all together get into cylinder combustion from public air-inlet cavity and burn; Owing to have only a public air-inlet cavity on the cylinder cap, often cause gas engine to exist the problem of suction tude tempering, after-burning; 2. gas engine fluctuation of service, cylinder are arranged degradation phenomenon under temperature rising, the power; 3. during the gas engine air inlet, intake valve is opened, and combustion gas and air get in the cylinder through public air-inlet cavity simultaneously, when valve-closing, remain in the combustion gas, air mixing of cylinder cap air-inlet cavity after, just be easy to generate tempering phenomenon; When intake valve, exhaust valve were opened simultaneously, in scavenging process, residual gas-air mixed gas got into outlet pipe, thereby causes the after-burning phenomenon.
Summary of the invention
The purpose of the utility model provides a kind of gas engine air inlet branch chamber backfireproof cylinder cap; Employing is a combustion gas air-inlet cavity and an air inlet chamber, a combustion gas intake valve and an air inlet door with the air inlet of cylinder cap; The combustion gas air-inlet cavity is connected with the combustion gas intake valve, and air inlet chamber and the structure that the air inlet door is connected make combustion gas and air get into branch chamber separately respectively and form eddy current to get into evenly fully mixing in the cylinder; The ratio of combustion gas and air more reasonably gets in the cylinder separately during the gas engine running; Prevent in the combustion gas entrained air chamber combustion gas fully to be burnt, thereby realization combustion gas and air cylinder are isolated fully outward; Mixed combustion in the cylinder, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned existing technology.
The described gas engine air inlet of the utility model divides chamber backfireproof cylinder cap; Comprise cylinder head, rocking arm, cross-bridges, spring and fuel gas exhaust door, air exhaust valve; It is characterized in that also being provided with on the said cylinder head combustion gas intake valve, air-inlet cavity parting plane, air inlet door, combustion gas air-inlet cavity are installed; Air inlet chamber, exhausting waste gas chamber; The combustion gas intake valve is connected with the combustion gas air-inlet cavity, and the air inlet door is connected with the air inlet chamber, and the exhausting waste gas chamber is connected with fuel gas exhaust door and air exhaust valve.
Wherein, said air-inlet cavity parting plane is oblique air guide face structure, and starting point is at fuel gas exhaust door and air exhaust valve end face.The wall thickness of said oblique air guide face is 5～10mm.Said combustion gas cavity and air cavity are divided into two independently cavitys by the air-inlet cavity parting plane.
The utility model has following advantage compared with prior art:
1, because the air-inlet cavity of cylinder cap forms a combustion gas air-inlet cavity and an air inlet chamber; The combustion gas air-inlet cavity is connected with the combustion gas intake valve, and air inlet door and the structure that the air inlet chamber is connected make combustion gas and air get into branch chamber separately respectively and form eddy current to get into evenly fully mixing in the cylinder; The ratio of combustion gas and air more reasonably gets in the cylinder separately during the gas engine running; Prevent in the combustion gas entrained air chamber combustion gas fully to be burnt, thereby realization combustion gas and air cylinder are isolated fully outward; Mixed combustion in the cylinder reaches and prevents tempering, prevents after-burning;
2, reduce the gentle row's temperature of cylinder, raising power.
Description of drawings:
Fig. 1 is the longitudinal profile schematic representation of a kind of example structure of the utility model;
Fig. 2 is for pressing structure horizontal section schematic representation shown in Figure 1.
Embodiment
Consult Fig. 1-Fig. 2, a kind of gas engine air inlet divides chamber backfireproof cylinder cap, comprises cylinder head 2, rocking arm 1, cross-bridges, spring and fuel gas exhaust door, air exhaust valve.Also be provided with on the cylinder head 2 combustion gas intake valve 3, air-inlet cavity parting plane 4, air inlet door 7, combustion gas air-inlet cavity 5 are installed; Air inlet chamber 6, exhausting waste gas chamber 8; Combustion gas intake valve 3 is connected with combustion gas air-inlet cavity 5; Air inlet door 7 is connected with air inlet chamber 6, and exhausting waste gas chamber C is connected with fuel gas exhaust door and air exhaust valve.
Air-inlet cavity parting plane 4 is oblique air guide face structure, and starting point is at fuel gas exhaust door and air exhaust valve end face.The wall thickness of oblique air guide face 4 is 5～10mm.Combustion gas cavity and air cavity are divided into two independently cavitys by air-inlet cavity parting plane 4.
During work, when the gas engine air inlet, combustion gas intake valve 3 is opened with air inlet door 7 simultaneously, and combustion gas and air get in the cylinder through combustion gas air-inlet cavity 5, combustion gas intake valve 3 and air inlet chamber 6, air inlet door 7 respectively synchronously; When valve-closing, the combustion gas and the air that remain in combustion gas air-inlet cavity 5 and air inlet chamber 6 can't mix, and just can not produce tempering phenomenon; When intake valve, exhaust valve are opened simultaneously,, realized the scavenging of air and combustion gas because there is rational overlapping angle in inlet and exhaust valve; And guarantee that enough fresh charges get into; And fresh charge is inflow exhaust gas exhaust cavity 8 not, thereby reduces the after-burning phenomenon, reduces row's temperature; Because air-inlet cavity parting plane 4 is oblique air guide faces; This oblique air guide face can make the eddy current that combustion gas and air branch chamber are passed through and each self-forming is desirable get into evenly abundant mixing the in the cylinder; And the ratio that makes gas engine when running combustion gas and air is more rationally separately in the entering cylinder; Combustion gas is fully burnt, thereby make motor stable, improve operate power.
Claims (4)
1. a gas engine air inlet divides chamber backfireproof cylinder cap; Comprise cylinder head, rocking arm, cross-bridges, spring and fuel gas exhaust door, air exhaust valve; It is characterized in that on the said cylinder head also being provided with combustion gas intake valve, air-inlet cavity parting plane, air inlet door, combustion gas air-inlet cavity are installed, air inlet chamber, exhausting waste gas chamber, the combustion gas intake valve is connected with the combustion gas air-inlet cavity; The air inlet door is connected with the air inlet chamber, and the exhausting waste gas chamber is connected with fuel gas exhaust door and air exhaust valve.
2. gas engine air inlet according to claim 1 divides chamber backfireproof cylinder cap, it is characterized in that said air-inlet cavity parting plane is oblique air guide face structure, and starting point is at fuel gas exhaust door and air exhaust valve end face.
3. gas engine air inlet according to claim 2 divides chamber backfireproof cylinder cap, and the wall thickness that it is characterized in that said oblique air guide face is 5～10mm.
4. gas engine air inlet according to claim 1 divides chamber backfireproof cylinder cap, it is characterized in that said combustion gas cavity and air cavity are divided into two independently cavitys by the air-inlet cavity parting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120153948U CN202140190U (en) | 2011-05-16 | 2011-05-16 | Backfire preventive cylinder cover of secondary gas inlet cavity of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120153948U CN202140190U (en) | 2011-05-16 | 2011-05-16 | Backfire preventive cylinder cover of secondary gas inlet cavity of gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140190U true CN202140190U (en) | 2012-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120153948U Expired - Fee Related CN202140190U (en) | 2011-05-16 | 2011-05-16 | Backfire preventive cylinder cover of secondary gas inlet cavity of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140190U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606337A (en) * | 2012-04-05 | 2012-07-25 | 济南汉菱电气有限公司 | Gas engine with fuel gas and air branching and time sharing functions and direct injection gas inlet function |
| CN102606335A (en) * | 2012-04-05 | 2012-07-25 | 济南汉菱电气有限公司 | Gas engine with fuel gas and air branching and time sharing functions and direct injection gas inlet function |
| WO2016101193A1 (en) * | 2014-12-24 | 2016-06-30 | 深圳智慧能源技术有限公司 | Gaseous fuel piston engine and air intake system thereof |
-
2011
- 2011-05-16 CN CN201120153948U patent/CN202140190U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606337A (en) * | 2012-04-05 | 2012-07-25 | 济南汉菱电气有限公司 | Gas engine with fuel gas and air branching and time sharing functions and direct injection gas inlet function |
| CN102606335A (en) * | 2012-04-05 | 2012-07-25 | 济南汉菱电气有限公司 | Gas engine with fuel gas and air branching and time sharing functions and direct injection gas inlet function |
| WO2016101193A1 (en) * | 2014-12-24 | 2016-06-30 | 深圳智慧能源技术有限公司 | Gaseous fuel piston engine and air intake system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Xiaosong Inventor after: Su Zhanwang Inventor after: Bi Hongliang Inventor after: Cui Peng Inventor after: Pan Minggang Inventor after: Li Yong Inventor before: Yu Xiaosong Inventor before: Su Zhanwang Inventor before: Bi Hongliang Inventor before: Cui Peng Inventor before: Pan Minggang Inventor before: Li Yong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20140516 |