CN104500310A - Sealing structure for ignition plug - Google Patents
Sealing structure for ignition plug Download PDFInfo
- Publication number
- CN104500310A CN104500310A CN201410819135.0A CN201410819135A CN104500310A CN 104500310 A CN104500310 A CN 104500310A CN 201410819135 A CN201410819135 A CN 201410819135A CN 104500310 A CN104500310 A CN 104500310A
- Authority
- CN
- China
- Prior art keywords
- spark plug
- cylinder head
- plug sleeve
- ignition plug
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention relates to a sealing structure for an ignition plug. The sealing structure comprises a cylinder head and a cylinder head cover, and further comprises an ignition plug, wherein a stepped hole is formed in the cylinder cover; a through hole is formed in the cylinder head cover; the lower end of the ignition plug is connected with the small end of the stepped hole in a matched manner; the inner wall at the lower end opening of the through hole in the cylinder head cover is a conical surface; external threads and a six-rowed lug boss are arranged at the lower part of an ignition plug sleeve; the ignition plug sleeve sleeves the ignition plug; the lower part of the ignition plug sleeve is connected with the large end of the stepped hole in the cylinder head in a matched manner; the upper part of the ignition plug sleeve penetrates through the through hole in the cylinder head cover; a compressing spring sleeve sleeves the middle of the ignition plug sleeve; the lower end of the compressing spring is tightly propped against the six-rowed lug boss at the lower part of the ignition plug sleeve; a gasket sleeves the upper part of the ignition plug sleeve; an O-shaped seal ring sleeves the ignition plug sleeve, is arranged on the gasket, and is clung to the conical surface of the inner wall of the through hole in the cylinder head cover. The sealing structure can prevent machine oil in the cylinder head from entering the ignition plug and leaking out of an engine.
Description
Technical field
The present invention relates to the sealing configuration of gas engine parts, especially relate to the sealing configuration of the spark plug sleeve that a kind of gas engine uses.
Background technique
The spark plug of powerful gas engine usually reaches cylinder cap from cylinder head cage apertures and installs, and must arrange a spark plug sleeve in spark plug outside, to prevent the machine oil of cylinder head inside from flowing on spark plug, causes damage to spark plug; Also prevent the machine oil of cylinder head inside from leaking into external engine from rocker arm chamber hole in addition.CN 104088746 A disclosed " a kind of sealing configuration of spark plug ", comprise spark plug, cylinder cap, spark plug steel bushing and gland, described spark plug is positioned at described cylinder cap top, and be screwed in described cylinder cap bottom it, described spark plug steel bushing is sleeved on described spark plug, described cylinder cap is connected with described spark plug steel bushing, described gland is screwed in described spark plug steel bushing, wherein, described spark plug comprises metal shell and centre electrode, described centre electrode is located in described metal shell, and the bottom of described metal shell is screwed in described cylinder cap.It is more effectively lasting that it can make it sealability, and the periodic replacement being convenient to spark plug is safeguarded.Although the sealability of sealing structure is effective lastingly, structure is comparatively complicated, and sealability also also exists the necessity improved further.
Summary of the invention
The object of this invention is to provide a kind of sealing configuration of spark plug, it can prevent the machine oil of cylinder head inside from entering into damage spark plug causing spark plug, and can prevent the machine oil of cylinder head inside from leaking into external engine from cylinder head cage apertures; Simple for structure, be convenient to install.Be specially adapted to high power gas motor.
The sealing configuration of a kind of spark plug of the present invention, comprises cylinder head, the valve mechanism cover be connected in cylinder head, and described cylinder head is provided with shoulder hole, described valve mechanism cover is provided with via hole, this via hole is corresponding with described shoulder hole; Also comprise the spark plug that the shoulder hole small end in lower end and described cylinder head is connected, the upper end of this spark plug, through the via hole in described valve mechanism cover, is characterized in that: the lower end mouth inner wall of the via hole in described valve mechanism cover is the conical surface;
The bottom of one spark plug sleeve is provided with outside thread and six rib boss, and this six ribs boss is positioned on described outside thread; Described spark plug sleeve is enclosed within outside described spark plug and bottom and is connected with the large end screw-thread fit of the shoulder hole in described cylinder head, and the top of described spark plug sleeve is through the via hole in described valve mechanism cover;
One Compress Spring is enclosed within the outside in the middle part of described spark plug sleeve, the lower end of this Compress Spring and six rib boss of described spark plug sleeve bottom near; One gasket sleeve in the exterior upper portion of described spark plug sleeve, below this packing ring with the upper end of described Compress Spring near; One " 〇 " shape seal ring is enclosed within the exterior upper portion of described spark plug sleeve, is placed on described packing ring and with the lower end oral area conical surface of inboard wall of the via hole in described valve mechanism cover and is close to.
Further, sealer is scribbled at the outside thread position of described spark plug sleeve underpart.
The sealing configuration of described a kind of spark plug, described in it, the material of spark plug sleeve is stainless steel.
The sealing configuration of described a kind of spark plug, described in it, the material of " 〇 " shape seal ring is oil resistant rubber.
Beneficial effect of the present invention: simple for structure, quick and easy for installation, sealing is lasting reliable, not only avoid the engine oil leakage of cylinder head inside on spark plug, cause the damage of spark plug, and prevent the machine oil of cylinder head inside from leaking into external engine from rocker arm chamber hole, and each correlated parts processing and fabricating of this spark plug sleeve sealing configuration is simple, and cost of parts is low.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of structure of the present invention;
Fig. 2 is the A portion enlarged view of Fig. 1;
Fig. 3 is the structural representation of spark plug sleeve.
In figure: 1-cylinder head, 2-spark plug sleeve, 3-Compress Spring, 4-packing ring, 5-" 〇 " shape seal ring, 6-valve mechanism cover, 7-spark plug, 21-outside thread, 22-six rib boss.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
See the sealing configuration of a kind of spark plug shown in Fig. 1, Fig. 2 and Fig. 3, comprise cylinder head 1, the valve mechanism cover 6 be connected in cylinder head, described cylinder head is provided with shoulder hole, described valve mechanism cover is provided with via hole, this via hole is corresponding with described shoulder hole; Also comprise the spark plug 7 that the shoulder hole small end in lower end and described cylinder head is connected, the upper end of this spark plug is through the via hole in described valve mechanism cover, and its outstanding substantive distinguishing features is: the lower end mouth inner wall of the via hole in described valve mechanism cover 6 is the conical surface;
The bottom of one spark plug sleeve 2 is provided with outside thread 21 and six rib boss 22, and this six ribs boss is positioned on described outside thread, arranges using of six rib boss and is convenient to install; Described spark plug sleeve is enclosed within outside described spark plug 7 and bottom and is connected with the large end screw-thread fit of the shoulder hole in described cylinder head 1, and the top of described spark plug sleeve is through the via hole in described valve mechanism cover;
One Compress Spring 3 is enclosed within the outside in the middle part of described spark plug sleeve, the lower end of this Compress Spring and six rib boss 22 of described spark plug sleeve bottom near; One packing ring 4 is enclosed within the exterior upper portion of described spark plug sleeve, below this packing ring with the upper end of described Compress Spring near;
One " 〇 " shape seal ring 5 is enclosed within the exterior upper portion of described spark plug sleeve, is placed on described packing ring and with the lower end oral area conical surface of inboard wall of the via hole in described valve mechanism cover and is close to.Adopt this structure can not only ensure the position favorable sealing property that spark plug sleeve coordinates with valve mechanism cover, prevent the machine oil of cylinder head inside from leaking into external engine from cylinder head cage apertures, and install very simple and efficient.
Further, sealer is scribbled at the screw thread position of described spark plug sleeve 2 underpart.Reliable to ensure the sealability of spark plug sleeve and cylinder head matching part, prevent the engine oil leakage of cylinder head inside on spark plug, cause the damage of spark plug.
The sealing configuration of described a kind of spark plug, described in it, the material of spark plug sleeve 2 is stainless steel.Can effectively prevent spark plug sleeve from getting rusty.
The sealing configuration of described a kind of spark plug, described in it, the material of " 〇 " shape seal ring 5 is oil resistant rubber.Reliable sealability can be kept for a long time.
Specific embodiments is: in the lower external thread of spark plug sleeve 2, be coated with sealer, and to be tightened by spark plug sleeve 2 with torque spanner and be arranged in cylinder head 1, by the thread seal of spark plug sleeve 2 bottom, machine oil can not flow on spark plug.Compress Spring 3 is enclosed within outside spark plug sleeve 2, the lower end of Compress Spring 3 and six rib boss of spark plug sleeve 2 near, on upper end packing ring 4 being placed in Compress Spring 3, " 〇 " shape seal ring 5 is placed on above packing ring 4, valve mechanism cover 6 is arranged in cylinder head 1, valve mechanism cover is " 〇 " shape seal ring 5, packing ring 4 down compresses, Compress Spring 3 is compressed, the initial length of Compress Spring 3 is greater than the length H after compression, " 〇 " shape seal ring 5 passes through the compression of Compress Spring 3 and valve mechanism cover, " 〇 " shape seal ring 5 is compressed tightly, with the conical surface of valve mechanism cover 6 via hole lower end mouth inner wall, fit in above the packing ring 4 and outside of spark plug sleeve 2, the machine oil of cylinder head 1 inside can not be let out, play the effect of sealing machine oil.
Claims (4)
1. a sealing configuration for spark plug, comprises cylinder head (1), the valve mechanism cover (6) be connected in cylinder head, and described cylinder head is provided with shoulder hole, described valve mechanism cover is provided with via hole, this via hole is corresponding with described shoulder hole; Also comprise the spark plug (7) that the shoulder hole small end in lower end and described cylinder head is connected, the upper end of this spark plug, through the via hole in described valve mechanism cover, is characterized in that: the lower end mouth inner wall of the via hole in described valve mechanism cover (6) is the conical surface;
The bottom of one spark plug sleeve (2) is provided with outside thread (21) and six rib boss (22), and this six ribs boss is positioned on described outside thread; Described spark plug sleeve is enclosed within described spark plug (7) outside and bottom is connected with the large end screw-thread fit of the shoulder hole in described cylinder head (1), and the top of described spark plug sleeve is through the via hole in described valve mechanism cover;
One Compress Spring (3) is enclosed within the outside in the middle part of described spark plug sleeve, the lower end of this Compress Spring and six rib boss (22) of described spark plug sleeve bottom near; One packing ring (4) is enclosed within the exterior upper portion of described spark plug sleeve, below this packing ring with the upper end of described Compress Spring near; One " 〇 " shape seal ring (5) are enclosed within the exterior upper portion of described spark plug sleeve, are placed on described packing ring and with the lower end oral area conical surface of inboard wall of the via hole in described valve mechanism cover and are close to.
2. the sealing configuration of a kind of spark plug according to claim 1, is characterized in that: scribble sealer at the outside thread position of described spark plug sleeve (2) underpart.
3. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the material of described spark plug sleeve (2) is stainless steel.
4. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the material of described " 〇 " shape seal ring (5) is oil resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819135.0A CN104500310A (en) | 2014-12-25 | 2014-12-25 | Sealing structure for ignition plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819135.0A CN104500310A (en) | 2014-12-25 | 2014-12-25 | Sealing structure for ignition plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500310A true CN104500310A (en) | 2015-04-08 |
Family
ID=52941748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819135.0A Pending CN104500310A (en) | 2014-12-25 | 2014-12-25 | Sealing structure for ignition plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715443A (en) * | 2016-03-31 | 2016-06-29 | 安徽华菱汽车有限公司 | Engine ignition system mounting device and engine with device |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
| CN111535970A (en) * | 2020-06-05 | 2020-08-14 | 安徽华菱汽车有限公司 | Engine and press-in type spark plug spacer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000133410A (en) * | 1998-10-28 | 2000-05-12 | Ngk Spark Plug Co Ltd | Spark plug with gasket |
| JP2003193908A (en) * | 2001-12-26 | 2003-07-09 | Ngk Spark Plug Co Ltd | Internal combustion engine, head cover, and plughole pipe |
| CN201318242Y (en) * | 2008-12-17 | 2009-09-30 | 东风汽车有限公司 | Spark plug spacer |
| CN202628311U (en) * | 2012-06-21 | 2012-12-26 | 海马轿车有限公司 | Spark plug conduit sealing mechanism and automotive engine |
| CN202906198U (en) * | 2012-10-24 | 2013-04-24 | 江苏新能动力科技股份有限公司 | Oil and gas sealing structure for lower portion of spark plug |
| CN203009079U (en) * | 2012-11-27 | 2013-06-19 | 东风汽车有限公司 | Elasticity-adjustable spark plug sealing structure |
| CN203022908U (en) * | 2012-10-24 | 2013-06-26 | 江苏新能动力科技股份有限公司 | Seal structure of lower portion of air cylinder cover of spark plug |
| CN103401146A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Gas machine spark plug sealing device |
| CN104092101A (en) * | 2014-06-20 | 2014-10-08 | 李星 | Sparking plug |
| CN104088746A (en) * | 2014-06-20 | 2014-10-08 | 李星 | Seal structure of spark plug |
-
2014
- 2014-12-25 CN CN201410819135.0A patent/CN104500310A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000133410A (en) * | 1998-10-28 | 2000-05-12 | Ngk Spark Plug Co Ltd | Spark plug with gasket |
| JP2003193908A (en) * | 2001-12-26 | 2003-07-09 | Ngk Spark Plug Co Ltd | Internal combustion engine, head cover, and plughole pipe |
| CN201318242Y (en) * | 2008-12-17 | 2009-09-30 | 东风汽车有限公司 | Spark plug spacer |
| CN202628311U (en) * | 2012-06-21 | 2012-12-26 | 海马轿车有限公司 | Spark plug conduit sealing mechanism and automotive engine |
| CN202906198U (en) * | 2012-10-24 | 2013-04-24 | 江苏新能动力科技股份有限公司 | Oil and gas sealing structure for lower portion of spark plug |
| CN203022908U (en) * | 2012-10-24 | 2013-06-26 | 江苏新能动力科技股份有限公司 | Seal structure of lower portion of air cylinder cover of spark plug |
| CN203009079U (en) * | 2012-11-27 | 2013-06-19 | 东风汽车有限公司 | Elasticity-adjustable spark plug sealing structure |
| CN103401146A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Gas machine spark plug sealing device |
| CN104092101A (en) * | 2014-06-20 | 2014-10-08 | 李星 | Sparking plug |
| CN104088746A (en) * | 2014-06-20 | 2014-10-08 | 李星 | Seal structure of spark plug |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715443A (en) * | 2016-03-31 | 2016-06-29 | 安徽华菱汽车有限公司 | Engine ignition system mounting device and engine with device |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
| CN111535970A (en) * | 2020-06-05 | 2020-08-14 | 安徽华菱汽车有限公司 | Engine and press-in type spark plug spacer |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |