CN201891454U - Valve guide rod device of large-power gas engine - Google Patents
Valve guide rod device of large-power gas engine Download PDFInfo
- Publication number
- CN201891454U CN201891454U CN 201020613270 CN201020613270U CN201891454U CN 201891454 U CN201891454 U CN 201891454U CN 201020613270 CN201020613270 CN 201020613270 CN 201020613270 U CN201020613270 U CN 201020613270U CN 201891454 U CN201891454 U CN 201891454U
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- China
- Prior art keywords
- valve guide
- guide rod
- sealing
- gas engine
- valve
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- Expired - Fee Related
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Abstract
The utility model discloses a valve guide rod device of a large-power gas engine, which comprises a valve guide rod pressed on a cylinder cover of an engine, a valve guide rod sleeved in a valve guide pipe in a slide fit mode, and a sealing sleeve used for sealing the valve guide pipe and the valve guide rod, wherein one end of the sealing sleeve is sleeved outside the valve guide pipe in a sealing mode, the other end of the sealing sleeve is sleeved outside the valve guide rod in a sealing mode, the sealing sleeve can effectively prevent engine oil around the valve guide pipe from leaking to a cylinder through a gap between the valve guide rod and the valve guide pipe. Compared with the existing O-shaped ring sealing, the utility model effectively avoids a back draft phenomenon of a gas inlet system in hot point ignition of the gas engine caused by carbon deposition formed on the back part of a valve after the engine oil enters the cylinder, ensures the normal work of the engine and eliminates security risks.
Description
Technical field
The utility model relates to a kind of engine components, particularly a kind of valve parts of high-power gas engine.
Background technique
At present, cylinder bore is in the valve guide rod device of the premixed gas engine about 200mm, sealing means between valve guide rod and the valve guide bushing all is to adopt the built-in O type of valve guide bushing circle to seal, phenomenon poorly sealed between valve guide bushing and the valve guide rod appears in this structure easily, machine oil can be in the coking of the back of inlet and outlet door, occur hot some during air inlet and light mixed gas, cause gas handling system back draft, the proper functioning that influences motor also may cause casualties and device damage, has bigger potential safety hazard.
At above-mentioned deficiency, need existing valve guide rod device is improved, make the sealing between valve guide bushing and the valve guide rod more reliable, ensure the motor proper functioning, and eliminate above-mentioned potential safety hazard.
Summary of the invention
In view of this, the utility model provides a kind of high-power gas engine valve guide rod device, and this device has changed original seal with O ring mode between valve guide bushing and the valve guide rod, makes sealing between the two more reliable, reach and ensure motor proper functioning, the purpose that eliminates safe hidden trouble.
High-power gas engine valve guide rod device of the present utility model, comprise the valve guide bushing that is fitted in cylinder and covers, the stuffing box gland that is slidingly matched and is placed in the valve guide rod in the valve guide bushing and is used for sealed air valve conduit and valve guide rod, comprise that also described stuffing box gland one end sealing is placed in outside the valve guide bushing, the other end sealing is placed in outside the valve guide rod.
Further, described stuffing box gland comprises rubber sleeve, spring ring and tubular hard skeleton, and rubber sleeve comprises conduit seal section and guide rod seal section, and described skeleton is coated on outside the conduit seal section, and spring ring is placed in outside the guide rod seal section;
Further, the sealing surface longitudinal section of described guide rod seal section is a zigzag fashion.
The beneficial effects of the utility model: high-power gas engine valve guide rod device of the present utility model, comprise and be fitted in the valve guide bushing that cylinder covers, the stuffing box gland that is slidingly matched and is placed in the valve guide rod in the valve guide bushing and is used for sealed air valve conduit and valve guide rod, comprise that also described stuffing box gland one end sealing is placed in outside the valve guide bushing, the other end sealing is placed in outside the valve guide rod, stuffing box gland can prevent effectively that the machine oil around the valve guide bushing from leaking to cylinder by the gap between valve guide rod and the valve guide bushing, more reliable with respect to existing seal with O ring, cause the hot some igniting of gas engine gas handling system back draft phenomenon to occur at valve back formation carbon distribution after effectively having avoided machine oil to enter cylinder, both ensure the proper functioning of motor, also eliminated potential safety hazard.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of stuffing box gland.
Embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is the structural representation of stuffing box gland, as shown in the figure: the high-power gas engine valve guide rod device of present embodiment, comprise the valve guide bushing 2 that is fitted on the engine cylinder cap 1, the stuffing box gland 4 that is slidingly matched and is placed in the valve guide rod 3 in the valve guide bushing 2 and is used for sealed air valve conduit 2 and valve guide rod 3, described stuffing box gland 4 one ends sealing is placed in outside the valve guide bushing 2, the other end sealing is placed in outside the valve guide rod 3, the stuffing box gland sealing is with respect to existing seal with O ring, machine oil around can more effectively preventing enters cylinder by the gap between valve guide bushing and the valve guide rod and is advancing, exhaust valve coking behind influences the motor proper functioning, simultaneously, occur hot point when also having avoided air inlet and light mixed gas and cause gas handling system back draft, eliminated potential safety hazard.
In the present embodiment, described stuffing box gland 4 comprises rubber sleeve 5, spring ring 6 and tubular hard skeleton 7, rubber sleeve 5 comprises conduit seal section 5a and guide rod seal section 5b, described skeleton 7 is coated on outside the conduit seal section 5a, conduit seal section rubber between hard skeleton and valve guide bushing is extruded, can reach better sealing effect, spring ring 6 is placed in outside the guide rod seal section 5b, rigidity and elasticity by the appropriate design spring ring, a part of machine oil is coated on valve guide rod and the conduit equably, to guarantee good lubricating effect in valve guide rod to-and-fro motion process.
In the present embodiment, the sealing surface longitudinal section of described guide rod seal section 5b is a zigzag fashion, and under the pressuring action of spring ring, deforming according to the rubber tip of profile of tooth fits tightly on valve guide rod, reaches good sealing effect.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. high-power gas engine valve guide rod device, comprise the valve guide bushing (2) that is fitted on the engine cylinder cap (1) and be slidingly matched and be placed in the interior valve guide rod (3) of valve guide bushing (2), it is characterized in that: also comprise stuffing box gland (4), described stuffing box gland (4) one ends sealing is placed in outside the valve guide bushing (2), and the other end sealing is placed in outside the valve guide rod (3).
2. high-power gas engine valve guide rod device according to claim 1, it is characterized in that: described stuffing box gland (4) comprises rubber sleeve (5), spring ring (6) and tubular hard skeleton (7), rubber sleeve (5) comprises conduit seal section (5a) and guide rod seal section (5b), described skeleton (7) is coated on outside the conduit seal section (5a), and spring ring (6) is placed in outside the guide rod seal section (5b).
3. high-power gas engine valve guide rod device according to claim 2, it is characterized in that: the sealing surface longitudinal section of described guide rod seal section (5b) is a zigzag fashion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020613270 CN201891454U (en) | 2010-11-18 | 2010-11-18 | Valve guide rod device of large-power gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020613270 CN201891454U (en) | 2010-11-18 | 2010-11-18 | Valve guide rod device of large-power gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891454U true CN201891454U (en) | 2011-07-06 |
Family
ID=44220932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020613270 Expired - Fee Related CN201891454U (en) | 2010-11-18 | 2010-11-18 | Valve guide rod device of large-power gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234769A (en) * | 2014-08-30 | 2014-12-24 | 常州市海盈五金科技有限公司 | Automobile valve device |
-
2010
- 2010-11-18 CN CN 201020613270 patent/CN201891454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234769A (en) * | 2014-08-30 | 2014-12-24 | 常州市海盈五金科技有限公司 | Automobile valve device |
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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: 20110706 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |