CN202832841U - Natural gas engine spark plug cylinder liner structure - Google Patents
Natural gas engine spark plug cylinder liner structure Download PDFInfo
- Publication number
- CN202832841U CN202832841U CN 201220445278 CN201220445278U CN202832841U CN 202832841 U CN202832841 U CN 202832841U CN 201220445278 CN201220445278 CN 201220445278 CN 201220445278 U CN201220445278 U CN 201220445278U CN 202832841 U CN202832841 U CN 202832841U
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- CN
- China
- Prior art keywords
- spark plug
- cylinder liner
- natural gas
- gas engine
- cylinder sleeve
- 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 - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a natural gas engine spark plug cylinder liner structure which is composed of an O-shaped rubber sealing ring, a cylinder liner, a copper washer, and a spark plug. The natural gas engine spark plug cylinder liner structure is characterized in that the spark plug is located in the cylinder liner, the connection position between the upper half portion of the outer wall of the cylinder liner and a cylinder cover is sealed through the O-shaped rubber sealing ring. The connection position between the bottom portion of the cylinder liner and the cylinder cover is sealed through the copper washer. The lower end of the cylinder liner and the lower end of the spark plug are respectively provided with an internal thread structure and an external thread structure. The upper and lower sealing structure of the cylinder liner outside the spark plug enables the separation of the spark plug from cooling water and lubricating oil to be achieved. The natural gas engine spark plug cylinder liner structure is simple in structure, good in sealing effects, capable of avoiding a variety of damages to an engine due to invalid sealing, and successful in improving the reliability of the engine.
Description
Technical field
The utility model relates to a kind of spark plug for natural gas engine cylinder sleeve structure, belongs to a kind of spark plug for natural gas engine position sealing configuration of motor mechanism design field.
Background technique
Along with improving constantly of energy growing tension and diesel-fuel price, the market demand of natural gas engine is constantly brought into schedule, especially the resourceful location of combustion gas is urgent especially for the demand of natural gas engine, develops for the car load MANUFACTURER that natural gas engine is particularly important reliably.
Natural gas engine has the demand of periodic replacement spark plug, and the working environment of spark plug requires isolated cooling water, lubricated wet goods medium, therefore seems especially important for realizing sealing reliably for the natural gas engine reliability around the spark plug.O type seal with elastometic washer cooling water and lubricant oil are adopted in the novel spark plug cylinder sleeve top that this patent relates to, the bottom adopts copper washer to prevent that cooling water from entering the firing chamber, both satisfied the requirement of spark plug exclusion of water oil, make things convenient for again the user regularly to carry out spark plug and change, empirical tests is a kind of reliably seal form easily.
Summary of the invention
The purpose of this utility model provides a kind of spark plug for natural gas engine cylinder sleeve structure, its upper-lower seal structure by the outside cylinder sleeve of spark plug realizes the separation to spark plug and cooling water, lubricant oil, simple in structure, good sealing effect, avoid having improved the reliability of motor because seal failure causes a series of infringement to motor.
The technical solution of the utility model is achieved in that a kind of spark plug for natural gas engine cylinder sleeve structure, formed by O type rubber seal, cylinder sleeve, copper washer, spark plug, it is characterized in that: spark plug is positioned at cylinder sleeve inside, upper half part of outer wall of cylinder jachet and cylinder head link position place are by the seal with elastometic washer of O type, and the cylinder sleeve bottom seals by copper washer with the cylinder head link position; Cylinder sleeve and spark plug lower end are the internal and external threads structure.
Upper-lower seal structure that good effect of the present utility model is it by the outside cylinder sleeve of spark plug realizes the separation to spark plug and cooling water, lubricant oil, simple in structure, good sealing effect, avoid because seal failure causes a series of infringement to motor, improved the reliability of motor, the worm structure of cylinder sleeve lower end, convenient periodic replacement spark plug.
Description of drawings
Fig. 1 is whole assembly structure figure of the present utility model.
Fig. 2 is cylinder sleeve structural profile schematic representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment: as shown in Figure 2, a kind of spark plug for natural gas engine cylinder sleeve structure, formed by O type rubber seal 1, cylinder sleeve 2, copper washer 3, spark plug 5, it is characterized in that: spark plug 5 is positioned at cylinder sleeve 2 inside, upper half part of cylinder sleeve 2 outer walls and cylinder head 4 link position places are by 1 sealing of O type rubber ring, and cylinder sleeve 2 bottoms and cylinder head 4 link positions are by copper washer 3 sealings; Cylinder sleeve 2 is internal and external threads structure 6 with spark plug 5 lower ends.
Embodiment
As shown in Figure 1, 2, when engine operation, lubricant oil and cooling water have the possibility that enters spark plug 5 mounting holes and firing chamber under the effect of pressure.On the top of this structure, by the sealing between the exocoel in O type rubber ring 1 realization between even compression cylinder sleeve and the cylinder head 4.The decrement of O type rubber ring is controlled at about 25%, when satisfying sealing, certain adaptive capacity can also be arranged to the positional deviation of cylinder sleeve 2, reduces the requirement to technique and assembling, has saved manufacture cost.Bottom in this structure, be equipped with copper washer 3 between cylinder sleeve 2 and the cylinder head 4, use the characteristic of copper product itself, by fastening cylinder sleeve 2 microcosmic compression copper washer 3, realize the sealing between cooling water 1 and firing chamber, the internal and external threads structure is adopted in cylinder sleeve 2 lower ends, by different mounting torques, the convenient sealability of adjusting copper washer 3 is provided convenience for the user regularly replaces spark plug simultaneously.
Claims (1)
1. spark plug for natural gas engine cylinder sleeve structure, formed by O type rubber seal, cylinder sleeve, copper washer, spark plug, it is characterized in that: spark plug is positioned at cylinder sleeve inside, upper half part of outer wall of cylinder jachet and cylinder head link position place are by the seal with elastometic washer of O type, and the cylinder sleeve bottom seals by copper washer with the cylinder head link position; Cylinder sleeve and spark plug lower end are the internal and external threads structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445278 CN202832841U (en) | 2012-09-04 | 2012-09-04 | Natural gas engine spark plug cylinder liner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445278 CN202832841U (en) | 2012-09-04 | 2012-09-04 | Natural gas engine spark plug cylinder liner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832841U true CN202832841U (en) | 2013-03-27 |
Family
ID=47944570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220445278 Expired - Fee Related CN202832841U (en) | 2012-09-04 | 2012-09-04 | Natural gas engine spark plug cylinder liner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832841U (en) |
Cited By (1)
| 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 |
-
2012
- 2012-09-04 CN CN 201220445278 patent/CN202832841U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20190904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |