CN205025520U - Take engine valve that second grade is sealed - Google Patents
Take engine valve that second grade is sealed Download PDFInfo
- Publication number
- CN205025520U CN205025520U CN201520640048.9U CN201520640048U CN205025520U CN 205025520 U CN205025520 U CN 205025520U CN 201520640048 U CN201520640048 U CN 201520640048U CN 205025520 U CN205025520 U CN 205025520U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealed
- contact
- engine
- face
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model provides a take engine valve that second grade is sealed, includes valve retainer portion, valve neck and valve stem, valve retainer portion, valve neck and valve stem adopt the integrative shaping of forging. The back of valve retainer portion is equipped with one -level conical sealing surface and second grade conical sealing surface, and one -level conical sealing surface's sealed plane angle degree a1 is 65-75, and second grade conical sealing surface's sealed plane angle degree a2 is 65-75, a1 and keeps unanimous with a2. The utility model provides an engine valve increases the sealing strip width through increaseing sealed plane angle degree, and heat transmission effect is better, and spiracular operating temperature is lower, the adoption second grade is sealed, has improved the leakproofness of the sealed face of engine valve to guarantee the reliability of engine, improved the wholeness ability of engine.
Description
Technical field
The utility model relates to technical field of engines, particularly a kind of engine valve.
Background technique
Valve is one of strength member of motor, existing engine valve as shown in Figure 1, comprise Valve Disc 1, air valve cervix 2 and valve stem 3, the back side of Valve Disc 1 is provided with conical seal (contact) face 1-1, and the sealing surface angle a of conical seal (contact) face 1-1 is 45 ° ~ 60 °.By conical surface seal between air valve seat ring on valve and valve cap, conical seal (contact) face 1-1 can not overall with contact with valve seat conical surface, that really seal is a sealing strip 1-1-1 being positioned near conical seal (contact) face 1-1 conical surface width centre, sealing strip 1-1-1 is more much smaller than the conical surface width of conical seal (contact) face 1-1, the contact of sealing cone can be increased like this, accelerate break-in, and any incrustation that can cut off and extrude therebetween and carbon deposit, keep the sealing that the conical surface is good.Most of heat of valve is derived through sealing strip 1-1-1, the wider then heat-transfer effect of sealing strip 1-1-1 is better, the operating temperature of valve is just lower, but the sealing of valve is poor, otherwise sealing strip 1-1-1 is too narrow, although sealing better but dispel the heat bad, and contact is comparatively large, can accelerate the wearing and tearing of valve.
Also exist " declinate " between existing conical seal (contact) face 1-1 and air valve seat ring besides, conical seal (contact) face 1-1 and air valve seat ring is made to be sealed by linear contact lay thus, and break off blast tube, angle a is little for conical seal (contact) face 1-1 sealing surface, and sealing strip 1-1-1 is narrow, and sealing is better, otherwise, sealing surface angle a is large, and sealing strip 1-1-1 is wide, and sealing is poor.
Summary of the invention
The purpose of this utility model be overcome prior art above-mentioned deficiency and a kind of engine valve with secondary seal is provided.
The technical solution of the utility model is: a kind of engine valve with secondary seal, comprise Valve Disc, air valve cervix and valve stem, Valve Disc, air valve cervix and valve stem adopt one forging molding, the back side of Valve Disc is provided with one-level conical seal (contact) face and secondary conical seal (contact) face, the sealing surface angle a1 of one-level conical seal (contact) face is 65 ° ~ 75 °, the sealing surface angle a2 of secondary conical seal (contact) face is 65 ° ~ 75 °, and a1 and a2 is consistent.
The engine valve that the utility model provides is due to the increase of sealing surface angle, and sealing strip broadens, and heat-transfer effect is better, and the operating temperature of valve is lower, but sealing is deteriorated.In order to solve sealing problem, the engine valve that the utility model provides adds a conical seal (contact) face, the primary seal of former engine valve is made to become secondary seal, improve the sealing of engine valve sealing surface, thus ensure that the reliability of motor, improve the overall performance of motor.
The utility model compared with prior art has following features:
1, the engine valve that the utility model provides increases sealant band width by strengthening sealing surface angle, and heat-transfer effect is better, and the operating temperature of valve is lower; Adopt secondary seal, improve the sealing of engine valve sealing surface, thus ensure that the reliability of motor, improve the overall performance of motor.
2, the engine valve that provides of the utility model, is specially adapted to marine engine valve and wide-angle valve.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is existing engine valve structure schematic diagram;
The engine valve structure schematic diagram that accompanying drawing 2 provides for the utility model;
Accompanying drawing 3 is the I portion enlarged view in accompanying drawing 2.
Embodiment
Embodiment one, a kind of engine valve with secondary seal, comprise Valve Disc 1, air valve cervix 2 and valve stem 3, Valve Disc 1, air valve cervix 2 and valve stem 3 adopt one forging molding, the back side of Valve Disc 1 is provided with one-level conical seal (contact) face 1-2 and secondary conical seal (contact) face 1-3, the sealing surface angle a1 of one-level conical seal (contact) face 1-2 is 65 °, and the sealing surface angle a2 of secondary conical seal (contact) face 1-3 is 65 °.
Embodiment two, a kind of engine valve with secondary seal, comprise Valve Disc 1, air valve cervix 2 and valve stem 3, Valve Disc 1, air valve cervix 2 and valve stem 3 adopt one forging molding, the back side of Valve Disc 1 is provided with one-level conical seal (contact) face 1-2 and secondary conical seal (contact) face 1-3, the sealing surface angle a1 of one-level conical seal (contact) face 1-2 is 70 °, and the sealing surface angle a2 of secondary conical seal (contact) face 1-3 is 70 °.
Embodiment three, a kind of engine valve with secondary seal, comprise Valve Disc 1, air valve cervix 2 and valve stem 3, Valve Disc 1, air valve cervix 2 and valve stem 3 adopt one forging molding, the back side of Valve Disc 1 is provided with one-level conical seal (contact) face 1-2 and secondary conical seal (contact) face 1-3, the sealing surface angle a1 of one-level conical seal (contact) face 1-2 is 75 °, and the sealing surface angle a2 of secondary conical seal (contact) face 1-3 is 75 °.
Claims (2)
1. the engine valve with secondary seal, comprise Valve Disc, air valve cervix and valve stem, Valve Disc, air valve cervix and valve stem adopt one forging molding, it is characterized in that: the back side of Valve Disc is provided with one-level conical seal (contact) face and secondary conical seal (contact) face.
2. a kind of engine valve with secondary seal as claimed in claim 1, is characterized in that: the sealing surface angle a1 of one-level conical seal (contact) face is 65 ° ~ 75 °, and the sealing surface angle a2 of secondary conical seal (contact) face is 65 ° ~ 75 °, and a1 and a2 is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520640048.9U CN205025520U (en) | 2015-08-24 | 2015-08-24 | Take engine valve that second grade is sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520640048.9U CN205025520U (en) | 2015-08-24 | 2015-08-24 | Take engine valve that second grade is sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025520U true CN205025520U (en) | 2016-02-10 |
Family
ID=55258060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520640048.9U Active CN205025520U (en) | 2015-08-24 | 2015-08-24 | Take engine valve that second grade is sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065075A (en) * | 2015-08-24 | 2015-11-18 | 湖南天雁机械有限责任公司 | Engine valve with two-level seals |
-
2015
- 2015-08-24 CN CN201520640048.9U patent/CN205025520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065075A (en) * | 2015-08-24 | 2015-11-18 | 湖南天雁机械有限责任公司 | Engine valve with two-level seals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205025520U (en) | Take engine valve that second grade is sealed | |
| CN205013710U (en) | Stereoplasm blast gate sealing strip | |
| CN105065075A (en) | Engine valve with two-level seals | |
| CN204512557U (en) | Double-sealing tyre valve | |
| CN204041189U (en) | A kind of smoke-ejecting pipe with rainproof groove | |
| CN203757016U (en) | Spherical sealing polytetrafluoroethylene valve seat center line-type butterfly valve | |
| CN204045928U (en) | A kind of hermetically-sealed construction of liquid refrigerating type semiconductor laser | |
| CN208474557U (en) | A kind of rotor fit structure reducing trapped gas and resistance | |
| CN206145125U (en) | Sealing ring | |
| CN204333431U (en) | For the sealing gasket of automotive connector | |
| CN204213439U (en) | A kind of Novel valve inside | |
| CN204805394U (en) | Car brake chamber | |
| CN204004935U (en) | A kind of pipeline connecting flange | |
| CN203892587U (en) | High-performance butterfly valve capable of bearing pressure in forward and reverse directions | |
| CN204114379U (en) | Improve the structure of the nylon turbosupercharging pipeline of vibration friction welding weld strength | |
| CN203348674U (en) | Anticorrosive refrigeration valve seat | |
| CN203147018U (en) | Ultralow-temperature valve and valve rod triple sealing structure | |
| CN204553831U (en) | Detachable many pressure ratings tooth profile metal pad | |
| CN206648513U (en) | Ethylene glycol hydroecium heat exchanger | |
| CN203395363U (en) | Valve stem with efficient sealing performance | |
| CN208719812U (en) | A kind of gasket with gum | |
| CN201909047U (en) | Fuel gas valve structure | |
| CN208153915U (en) | A kind of clamping hoop type different diameter rubber joint | |
| CN103486272B (en) | Pipeline connects the seal ring used | |
| CN206145126U (en) | Two V profile sealing washers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |