CN202756109U - Natural gas engine cylinder cover - Google Patents
Natural gas engine cylinder cover Download PDFInfo
- Publication number
- CN202756109U CN202756109U CN 201220405095 CN201220405095U CN202756109U CN 202756109 U CN202756109 U CN 202756109U CN 201220405095 CN201220405095 CN 201220405095 CN 201220405095 U CN201220405095 U CN 201220405095U CN 202756109 U CN202756109 U CN 202756109U
- Authority
- CN
- China
- Prior art keywords
- spark plug
- cylinder head
- natural gas
- gas engine
- plug lining
- 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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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses a natural gas engine cylinder cover which comprises a cylinder cover body. A spark plug lining installing hole is arranged in the cylinder cover body. Internal thread matched with a spark plug lining and having a sealing property is arranged at the bottom portion of the spark plug lining installing hole. The natural gas engine cylinder cover is good in sealing property and meanwhile convenient to machine and assemble.
Description
Technical field
The utility model relates to the natural gas engine technical field, especially relates to a kind of used for natural gas engine cylinder head.
Background technique
Pass through interference fit seal between cylinder cover of natural gas engine of the prior art and spark plug lining, easily pressing local derviation to cause cylinder head when the spark plug lining is pressed into cylinder head leaks, if water enters cylinder along spark plug, will cause difficulty in starting and the fault that is short of power.Simultaneously, spark plug lining mounting hole of the prior art is inclined hole with respect to the cylinder head bottom plane, is not easy to processing and assembling.
The model utility content
Technical problem to be solved in the utility model is: a kind of used for natural gas engine cylinder head is provided, and good airproof performance is convenient to processing and assembling simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is: the used for natural gas engine cylinder head, comprise the cylinder head body, described cylinder head body is provided with spark plug lining mounting hole, and the bottom of described spark plug lining mounting hole is provided with the internal thread that cooperates and have sealability with the spark plug lining.
Preferably, the inner peripheral surface on the top of described spark plug lining mounting hole is provided with the annular groove that at least one is used for installing seal ring.
Preferably, the axis of described spark plug lining mounting hole is vertical with the installation end face of cylinder head.
Adopted technique scheme, the beneficial effects of the utility model are: owing to having designed above-mentioned used for natural gas engine cylinder head, the bottom of spark plug lining mounting hole is provided with the internal thread that cooperates and have sealability with the spark plug lining, by screw-thread fit sealing, effectively avoided the difficulty in starting that motor causes because of infiltration and be short of power between cylinder head and spark plug lining.
Because the inner peripheral surface on the top of spark plug lining mounting hole is provided with for the annular groove that seal ring is installed, and has further strengthened the sealing between cylinder head and spark plug lining.
Because the axis of spark plug lining mounting hole is vertical with the installation end face of cylinder head, is convenient to the processing of spark plug lining mounting hole and the assembling of spark plug lining.
Description of drawings
Accompanying drawing is the utility model embodiment's structural representation;
Wherein: 1, cylinder head body; 2, spark plug lining mounting hole; 3, spark plug lining; 4, seal ring; 5, annular groove; 6, seal washer.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in drawings, the used for natural gas engine cylinder head, comprise cylinder head body 1, cylinder head body 1 is provided with spark plug lining mounting hole 2, the bottom of spark plug lining mounting hole 2 is provided with the internal thread that cooperates and have sealability with spark plug lining 3,3 of cylinder head body 1 and spark plug linings seal by screw-thread fit, effectively avoided the difficulty in starting that motor causes because of infiltration and be short of power, need to prove, the screw thread with sealability in the present embodiment is adopted as the sealing thread at 55 ° of angles.The inner peripheral surface on the top of spark plug lining mounting hole 2 is provided with two annular grooves 5 that are used for installing seal ring 4, has further strengthened the sealing of 3 of cylinder head body 1 and spark plug linings.The axis of spark plug lining mounting hole 2 is vertical with the installation end face of cylinder head body 1, is convenient to the processing of spark plug lining mounting hole 2 and the assembling of spark plug lining 3.
Certainly, the quantity of annular groove 5 also can be one or more; In addition, be provided with seal washer 6 in the threaded connection place of spark plug lining mounting hole 2 and spark plug lining 3.
The utility model is not limited to above-mentioned concrete mode of execution, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the present utility model.
Claims (3)
1. the used for natural gas engine cylinder head comprises the cylinder head body, it is characterized in that, described cylinder head body is provided with spark plug lining mounting hole, and the bottom of described spark plug lining mounting hole is provided with the internal thread that cooperates and have sealability with the spark plug lining.
2. used for natural gas engine cylinder head as claimed in claim 1 is characterized in that, the inner peripheral surface on the top of described spark plug lining mounting hole is provided with at least one annular groove that is used for installing seal ring.
3. used for natural gas engine cylinder head as claimed in claim 1 or 2 is characterized in that, the axis of described spark plug lining mounting hole is vertical with the installation end face of cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405095 CN202756109U (en) | 2012-08-15 | 2012-08-15 | Natural gas engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405095 CN202756109U (en) | 2012-08-15 | 2012-08-15 | Natural gas engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756109U true CN202756109U (en) | 2013-02-27 |
Family
ID=47735296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405095 Expired - Lifetime CN202756109U (en) | 2012-08-15 | 2012-08-15 | Natural gas engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756109U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573460A (en) * | 2013-11-06 | 2014-02-12 | 中国第一汽车股份有限公司 | Cylinder cover sparking plug steel sleeve linkage structure |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
| CN109026422A (en) * | 2018-08-09 | 2018-12-18 | 襄阳美标朗源动力实业有限公司 | A kind of strong cylinder head of leakproofness for natural gas engine |
| CN109519297A (en) * | 2019-01-03 | 2019-03-26 | 广西玉柴机器股份有限公司 | A kind of novel natural gas engine cylinder cap |
-
2012
- 2012-08-15 CN CN 201220405095 patent/CN202756109U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573460A (en) * | 2013-11-06 | 2014-02-12 | 中国第一汽车股份有限公司 | Cylinder cover sparking plug steel sleeve linkage structure |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
| CN109026422A (en) * | 2018-08-09 | 2018-12-18 | 襄阳美标朗源动力实业有限公司 | A kind of strong cylinder head of leakproofness for natural gas engine |
| CN109519297A (en) * | 2019-01-03 | 2019-03-26 | 广西玉柴机器股份有限公司 | A kind of novel natural gas engine cylinder cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WEICHAI XIGANG NEW ENERGY POWER CO., LTD. Free format text: FORMER NAME: WEICHAI POWER SIGNATURE NEW ENERGY ENGINE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Patentee after: WEICHAI XIGANG NEW ENERGY POWER Co.,Ltd. Address before: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Patentee before: WEICHAI POWER XIGANG NEW ENERGY ENGINE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |