CN203962180U - A kind of cylinder head for gas engine - Google Patents
A kind of cylinder head for gas engine Download PDFInfo
- Publication number
- CN203962180U CN203962180U CN201420394516.4U CN201420394516U CN203962180U CN 203962180 U CN203962180 U CN 203962180U CN 201420394516 U CN201420394516 U CN 201420394516U CN 203962180 U CN203962180 U CN 203962180U
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- cylinder head
- cylinder
- head body
- gas engine
- shrinkage pool
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Abstract
The utility model relates to a kind of cylinder head for gas engine, comprises cylinder head body, on the face that described cylinder head body is connected with cylinder, is provided with the shrinkage pool matching with cylinder, on the face being connected with cylinder due to cylinder head body, be provided with the shrinkage pool matching with cylinder, after cylinder head body is installed, can make engine compression ratio reduce, meet the requirement that gas engine compression ratio is little, when fuel engine changes gas engine, do not need motor entirely to tear open, greatly shortened man-hour, reduced labor intensity, improved efficiency, do not need the size of piston and cylinder to modify yet, greatly reduce cost of production, piston combustion bowl wall thickness can not reduce, can not reduce the intensity of piston combustion locular wall, can not shorten the working life of motor.
Description
Technical field
The utility model relates to a kind of motor device, relates to specifically a kind of engine cylinder head.
Background technique
Motor be a kind of can being converted into of other form another kind of can machine, normally chemical energy is converted into mechanical energy, motor comprises cylinder and cylinder head, cylinder head is arranged on the top of cylinder, from top seal cylinder and form firing chamber.
At fuel engine, change in the process of gas engine, need to change the compression ratio of motor, way is by motor completely knocked down conventionally, the piston of motor or cylinder are modified, and to meet the requirement of gas engine compression ratio, man-hour is long, labor intensity is large, and efficiency is low.At fuel oil, change in gas process, normally expand the diameter of piston combustion bowl to increase firing chamber, piston combustion bowl enlarged meeting reduces the thickness of piston combustion locular wall, strength decreased, affect the working life of motor, the size of piston also needs to revise simultaneously, and piston size change can make the mould of manufacturing piston also will modify, and has greatly increased cost of production.
The structure of the cylinder head of now using as shown in Figure 1, on cylinder head body 1, be provided with spark plug mounting hole 7, the outside of spark plug mounting hole 7 is cooling passages 3, and the wall between spark plug mounting hole 7 and cooling passage 3 is thinner, in use easily destroy, generation is leaked.In order to prevent that thin-walled from producing to destroy, leak, wherein a kind of settling mode is at the interior sleeve pipe 6 that arranges of spark plug mounting hole 7, one end of sleeve pipe 6 is threaded with cylinder head body 1, between the other end of sleeve pipe 6 and cylinder head body 1, by seal ring 5, be tightly connected, when installing or pulling down spark plug, sleeve pipe 6 is easily loosening, thereby makes to produce and leak between sleeve pipe 6 and cylinder head body 1, still not can solve the problem that spark plug mounting hole 7 leaks.
Model utility content
Problem to be solved in the utility model is for above problem, provides a kind of motor not need the cylinder head for gas engine of entirely tearing open, not needing to change cylinder and piston size, can shorten man-hour, reduce labor intensity, raise labour efficiency, reduce production costs.
For addressing the above problem, the technological scheme that the utility model adopts is: a kind of cylinder head for gas engine, comprise cylinder head body, and on the face that described cylinder head body is connected with cylinder, be provided with the shrinkage pool matching with cylinder.
As a kind of optimized project, described shrinkage pool be shaped as circle.
As a kind of optimized project, the diameter of described shrinkage pool is identical with the diameter of cylinder.
As a kind of optimized project, on described cylinder head body, be provided with air valve seat, described shrinkage pool is positioned at air valve seat position.
As a kind of optimized project, on described cylinder head body, be provided with spark plug mounting hole, described spark plug mounting hole place is provided with sleeve pipe, described sleeve pipe and the cast molding of cylinder head body one.
Due to sleeve pipe and the cast molding of cylinder head body one, so when installation or removal spark plug, sleeve pipe can not become flexible, can not produce water leakage phenomenon, solved because the thin easy generation of spark plug mounting hole wall destroys the problem of leaking.
As a kind of optimized project, described sleeve pipe is steel pipe.
The utility model is taked above technological scheme, have the following advantages: on the face being connected with cylinder due to cylinder head body, be provided with the shrinkage pool matching with cylinder, after cylinder head body is installed, can make engine compression ratio reduce, meet the requirement that gas engine compression ratio is little, when fuel engine changes gas engine, do not need motor entirely to tear open, greatly shortened man-hour, reduced labor intensity, improved efficiency, do not need the size of piston and cylinder to modify yet, greatly reduce cost of production, piston combustion bowl wall thickness can not reduce, can not reduce the intensity of piston combustion locular wall, can not shorten the working life of motor.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of engine cylinder head in the utility model background technique;
Accompanying drawing 2 is the structural representation of a kind of engine cylinder head in the utility model embodiment.
In figure:
1-cylinder head body; 2-exhaust passage; 3-cooling passage; 4-valve guide bushing; 5-seal ring; 6-sleeve pipe; 7-spark plug mounting hole; 8-air valve seat; 9-shrinkage pool.
Embodiment
Embodiment 1: as shown in Figure 2, a kind of cylinder head for gas engine, comprises cylinder head body 1, is provided with the shrinkage pool 9 matching with cylinder on the face that cylinder head body 1 is connected with cylinder.
Shrinkage pool 9 be shaped as circle, the diameter of shrinkage pool 9 is identical with the diameter of cylinder.
On cylinder head body 1, be provided with air valve seat 8, shrinkage pool 9 is positioned at air valve seat 8 positions.
After cylinder head body 1 is installed, can make engine compression ratio reduce, meet the requirement that gas engine compression ratio is little, when fuel engine changes gas engine, do not need motor entirely to tear open, greatly shortened man-hour, reduced labor intensity, improved efficiency, do not need the size of piston and cylinder to modify, greatly reduce cost of production, piston combustion bowl wall thickness can not reduce yet, can not reduce the intensity of piston combustion locular wall, can not shorten the working life of motor.
On cylinder head body 1, be provided with valve guide bushing 4, exhaust passage 2, cooling passage 3 and spark plug mounting hole 7, spark plug mounting hole 7 places are provided with sleeve pipe 6, sleeve pipe 6 and the 1 one cast molding of cylinder head body.
Sleeve pipe 6 is steel pipe, and sleeve pipe 6 also can be selected the sleeve pipe of other materials as required.
The material therefor of valve guide bushing 4 changes, to meet the needs of gas engine.
The material therefor of air valve seat 8 changes, to meet the needs of gas engine.
Due to sleeve pipe 6 and the 1 one cast molding of cylinder head body, so when installation or removal spark plug, sleeve pipe 6 can not become flexible, can not produce water leakage phenomenon, solved because the thin easy generation of spark plug mounting hole wall destroys the problem of leaking.
Cylinder head is when casting, sleeve pipe 6 is set in core, cylinder head body 1 various piece wall thickness is basic identical, rate of cooling is basic identical, solved the difference that causes rate of cooling in casting process due to the difference of wall thickness, thereby the problem that produces the casting defects such as shrinkage porosite, has extended the working life of cylinder head greatly.
Claims (6)
1. a cylinder head for gas engine, comprises cylinder head body (1), it is characterized in that: on the face that described cylinder head body (1) is connected with cylinder, be provided with the shrinkage pool (9) matching with cylinder.
2. a kind of cylinder head for gas engine as claimed in claim 1, is characterized in that: described shrinkage pool (9) be shaped as circle.
3. a kind of cylinder head for gas engine as claimed in claim 2, is characterized in that: the diameter of described shrinkage pool (9) is identical with the diameter of cylinder.
4. as a kind of cylinder head for gas engine of claim 1-3 as described in one of them, it is characterized in that: on described cylinder head body (1), be provided with air valve seat (8), described shrinkage pool (9) is positioned at air valve seat (8) position.
5. as a kind of cylinder head for gas engine of claim 1-3 as described in one of them, it is characterized in that: on described cylinder head body (1), be provided with spark plug mounting hole (7), described spark plug mounting hole (7) locates to be provided with sleeve pipe (6), described sleeve pipe (6) and cylinder head body (1) one cast molding.
6. a kind of cylinder head for gas engine as claimed in claim 5, is characterized in that: described sleeve pipe (6) is steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394516.4U CN203962180U (en) | 2014-07-10 | 2014-07-10 | A kind of cylinder head for gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394516.4U CN203962180U (en) | 2014-07-10 | 2014-07-10 | A kind of cylinder head for gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962180U true CN203962180U (en) | 2014-11-26 |
Family
ID=51922776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420394516.4U Active CN203962180U (en) | 2014-07-10 | 2014-07-10 | A kind of cylinder head for gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088714A (en) * | 2014-07-10 | 2014-10-08 | 于洪伟 | Cylinder cover for gas engine |
-
2014
- 2014-07-10 CN CN201420394516.4U patent/CN203962180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088714A (en) * | 2014-07-10 | 2014-10-08 | 于洪伟 | Cylinder cover for gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Air cylinder cover for gas engine Effective date of registration: 20150827 Granted publication date: 20141126 Pledgee: China Co truction Bank Corp Weifang branch Pledgor: Weifang Hua Ling Diesel Engine Co., Ltd.|Yu Hongwei|Yu Hai Registration number: 2015980000211 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180613 Granted publication date: 20141126 Pledgee: China Co truction Bank Corp Weifang branch Pledgor: Hualing Diesel Engine Power Co., Ltd., Weifang|Yu Hongwei|Yu Hai Registration number: 2015980000211 |