CN205503210U - Ladder rod -type valve - Google Patents
Ladder rod -type valve Download PDFInfo
- Publication number
- CN205503210U CN205503210U CN201620304075.3U CN201620304075U CN205503210U CN 205503210 U CN205503210 U CN 205503210U CN 201620304075 U CN201620304075 U CN 201620304075U CN 205503210 U CN205503210 U CN 205503210U
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- valve
- valve stem
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- model
- ladder
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Abstract
The utility model relates to a ladder rod -type valve. Including valve, dovetail, valve stem, spiracular valve stem is the shaft type structure of ladder, the middle part position of valve stem is thick axle, designs into forked tail slot type structure in cascaded surface department, the radius ratio of the step shaft of valve stem is 1: 1.1, make valve stem and valve guide sliding contact face establish to thick axial plane, is the angle of bevel of dovetail 30 45 between. The utility model discloses a design into the shaft type structure of ladder with the valve stem to design into the forked tail notch in cascaded surface department, improved spiracular life, avoid the carbon deposit to spiracular damage, solve the phenomenon of the overheated carbon deposit of valve guide, have simple structure, when reducing product weight, reduced manufacturing cost.
Description
Technical field
The utility model relates to automobile air valve field, particularly relates to a kind of stepped rod type valve.
Background technology
The effect of valve (Valve) is to be responsible for specially in engine inputting fuel and discharging waste gas, conventional engines each cylinder only one of which inlet valve and an exhaust valve, this design structure is relatively easy, cost is relatively low, easy to maintenance, low-speed performance is preferable, and shortcoming is that power is difficult to improve, and during the highest rotating speed, charging efficiency is low, performance is more weak.In order to improve intake and exhaust efficiency, the many Valves Technology of the most employings, the most each cylinder arrangement has 4 valves (also to have single cylinder 3 or the design of 5 valves, principle is the same, engine such as Audi A6), 4 cylinders are exactly altogether 16 valves, and " 16V " that we are frequently seen in automobile data means that engine totally 16 valves.This many air valve structures easily form compact combustion chamber, and fuel injector is arranged in central authorities, so can make air-fuel mixture gas firing more rapidly, evenly, and weight and the aperture of each valve suitably reduce, and make the speed of valve opening or Guan Bi faster.
Air valve structure for prior art, valve belongs to guide rod type slide construction, Integral air valve pole face needs to carry out sliding friction, valve motion speed can be caused the slowest, air inlet or efficiency of giving vent to anger to engine are slower, and the energy needing waste bigger that moves up and down of valve, energy utilization rate is relatively low, therefore, by valve stem being designed to ladder axis structure, and at cascaded surface, it is designed to dovetail groove orifice, improve the service life of valve, avoid the carbon distribution damage to valve, solve the phenomenon of the overheated carbon distribution of valve guide bushing, there is simple in construction, while reducing product weight, reduce production cost.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of stepped rod type valve, by valve stem is designed to ladder axis structure, and is designed to dovetail groove orifice at cascaded surface, the problem solving the overheated carbon distribution of valve guide bushing.
A kind of stepped rod type valve, including valve, dovetail groove, valve stem, it is characterised in that the valve stem of described valve is ladder axis structure, the medium position of described valve stem is thick axle, is designed to dovetail groove type structure at cascaded surface.
Further, the radius ratio of the multidiameter of described valve stem is 1:1.1, makes valve stem and valve guide bushing sliding contact surface be set to thick axial plane, in the case of ensureing valve stable operation, make thin axle be in idle contactless, improve the speed of service and the service life of valve.
Further, the angle of bevel of described dovetail groove is between 30 °-45 °, and the dovetail groove of setting is used for removing the carbon distribution that valve guide bushing is formed with valve stem.
The utility model provides a kind of stepped rod type valve, it has the beneficial effect that by valve stem is designed to ladder axis structure, and at cascaded surface, it is designed to dovetail groove orifice, improve the service life of valve, avoid the carbon distribution damage to valve, solve the phenomenon of the overheated carbon distribution of valve guide bushing, there is simple in construction, while reducing product weight, reduce production cost.
Accompanying drawing explanation
The utility model is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of stepped rod type valve of the present utility model；
In figure, 1-valve, 2-dovetail groove, 3-valve stem.
Detailed description of the invention
In order to make the utility model purpose, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not used to limit the utility model.
As it is shown in figure 1, a kind of stepped rod type valve, including valve 1, dovetail groove 2, valve stem 3, it is characterised in that the valve stem 3 of described valve 1 is ladder axis structure, and the medium position of described valve stem 3 is thick axle, is designed to dovetail groove 2 formula structure at cascaded surface.
Wherein, the radius ratio of the multidiameter of valve stem 3 is 1:1.1, makes valve stem 3 and valve guide bushing sliding contact surface be set to thick axial plane, in the case of ensureing valve 1 stable operation, makes thin axle be in idle contactless, improve the speed of service and the service life of valve 1.
Wherein, the angle of bevel of dovetail groove 2 is between 30 °-45 °, and the dovetail groove 2 of setting is used for removing the carbon distribution that valve guide bushing is formed with valve stem 3.
The utility model is a kind of stepped rod type valve, by valve stem being designed to ladder axis structure, and at cascaded surface, it is designed to dovetail groove orifice, improve the service life of valve, avoid the carbon distribution damage to valve, solve the phenomenon of the overheated carbon distribution of valve guide bushing, there is simple in construction, while reducing product weight, reduce production cost.
Of the present utility model general principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; the utility model is not restricted to the described embodiments; described in above-described embodiment and specification, principle of the present utility model is simply described; on the premise of without departing from the utility model spirit and scope; the utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed the utility model.
Claims (3)
1. a stepped rod type valve, including valve (1), dovetail groove (2), valve stem (3), it is characterised in that the valve stem (3) of described valve (1) is ladder axis structure, the medium position of described valve stem (3) is thick axle, is designed to dovetail groove (2) formula structure at cascaded surface.
A kind of stepped rod type valve the most according to claim 1, it is characterised in that the radius ratio of the multidiameter of described valve stem (3) is 1:1.1.
A kind of stepped rod type valve the most according to claim 1, it is characterised in that the angle of bevel of described dovetail groove (2) is between 30 °-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620304075.3U CN205503210U (en) | 2016-04-13 | 2016-04-13 | Ladder rod -type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620304075.3U CN205503210U (en) | 2016-04-13 | 2016-04-13 | Ladder rod -type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503210U true CN205503210U (en) | 2016-08-24 |
Family
ID=56714570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620304075.3U Expired - Fee Related CN205503210U (en) | 2016-04-13 | 2016-04-13 | Ladder rod -type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888764A (en) * | 2016-04-13 | 2016-08-24 | 殷志成 | Stepped bar type valve |
-
2016
- 2016-04-13 CN CN201620304075.3U patent/CN205503210U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888764A (en) * | 2016-04-13 | 2016-08-24 | 殷志成 | Stepped bar type valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170413 |