CN202204681U - Valve for engine test - Google Patents
Valve for engine test Download PDFInfo
- Publication number
- CN202204681U CN202204681U CN2011202822905U CN201120282290U CN202204681U CN 202204681 U CN202204681 U CN 202204681U CN 2011202822905 U CN2011202822905 U CN 2011202822905U CN 201120282290 U CN201120282290 U CN 201120282290U CN 202204681 U CN202204681 U CN 202204681U
- Authority
- CN
- China
- Prior art keywords
- valve
- test
- engine test
- engine
- utility
- 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
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a valve for an engine test. The valve comprises a valve head part and a valve stem, wherein a clamp groove is formed at the end part of the valve stem. Since the clamp groove is formed at the end part of the valve stem, so as to enable the valve not to rotate during the test and further meet the requirement of the engine test.
Description
Technical field
The utility model relates to engine art, and particularly a kind of engine test is used valve.
Background technology
Engine valve comprises inlet valve and exhaust valve, and the long arm end valve key seat straight down through engine rocker presses the air turnover that the firing chamber is controlled in the switching of valve in the valve assembly.When inlet valve is opened, during exhaust valve closing, descent of piston, fresh air just is inhaled in the firing chamber through draft tube.After burning and acting completion, IC Intake Valve Closes, exhaust valve is opened, and upstroke scans out the firing chamber to the waste gas that burning produces.
In order to make the valve head temperature even, prevent the distortion that local overheating causes and remove the valve seating carbon deposit, can the relative at work valve seating of valve slowly be rotated through valve rotating mechanism.On sealing cone, produce slight friction force when valve slowly rotates, the self-cleaning action that stops sediment to form is arranged.In development experiments; In order to test the maximum temperature at each position on the valve; (hardness of this material can change according to the temperature of bearing to need to use a kind of special material; The test back can draw the maximum temperature of bearing on it according to the hardness at each position of valve) make the valve of engine air door assembly, and guarantee that this valve can not rotate in process of the test.And the valve of existing valve assembly can not guarantee in process of the test, not rotate, and can't satisfy the requirement of this special test.
The utility model content
The technical matters that the utility model solves provides the engine test of not rotating in a kind of process of the test and uses valve.
For achieving the above object, a kind of engine test that the utility model provides is used valve, comprising: the gentle door of valve head bar, the end of valve stem offers draw-in groove.
Further, draw-in groove is a rectangle.
According to the technical scheme of the utility model,, make this valve in process of the test, not rotate, and then reach the requirement of engine test because the end of valve stem offers draw-in groove.
Description of drawings
Fig. 1 is according to the engine test of the utility model partial structurtes synoptic diagram with the valve stem of valve.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.
Referring to Fig. 1; This engine test uses valve to be umbrella; Comprise: valve head (not shown) and valve stem 2; This valve is located in through valve stem 2 in the valve guide bushing (not shown) of cylinder head, presses the upper end of the valve stem 2 of valve through the long arm end valve key seat (not shown) straight down of engine rocker, and then regulates the air that valve head (not shown) and the switching of valve retainer control the firing chamber and pass in and out.Wherein, the upper end of valve stem 2 offers the draw-in groove 21 of rectangle, this draw-in groove 21 with press valve the rectangle projection (not shown) of valve key seat of valve rocker head of valve stem 2 upper ends match.
In order to make the valve head temperature even, prevent the distortion that local overheating causes and remove the valve seating carbon deposit, in the practical operation, can manage to make the relative at work valve seating of valve slowly to rotate.On sealing cone, produce slight friction force when valve slowly rotates, the self-cleaning action that stops sediment to form is arranged.But in development experiments; In order to test the maximum temperature at each position on the valve; (hardness of this material can change according to the temperature of bearing to need to use a kind of special material; The test back can draw the maximum temperature of bearing on it according to the hardness at each position of valve) make the valve of engine air door assembly, and guarantee that this valve can not rotate in process of the test.Therefore; During installation, the rectangle projection of the valve key seat of valve rocker head just snaps in the draw-in groove 21 of valve stem 2, and projection is than draw-in groove 21 point a little; Certain clearance is arranged after assembling but the gap is little; So after the groove of valve stem is snapped in by projection, valve rotating mechanism can not make valve rotate, and then reach the requirement of engine test.
More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (2)
1. an engine test is used valve, comprising: the gentle door of valve head bar is characterized in that the end of said valve stem offers draw-in groove.
2. engine test according to claim 1 is used valve, it is characterized in that, said draw-in groove is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202822905U CN202204681U (en) | 2011-08-05 | 2011-08-05 | Valve for engine test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202822905U CN202204681U (en) | 2011-08-05 | 2011-08-05 | Valve for engine test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204681U true CN202204681U (en) | 2012-04-25 |
Family
ID=45968799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202822905U Expired - Fee Related CN202204681U (en) | 2011-08-05 | 2011-08-05 | Valve for engine test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204681U (en) |
-
2011
- 2011-08-05 CN CN2011202822905U patent/CN202204681U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008505282A (en) | Gas exchange control mechanism for opposed piston engine | |
| CN202204681U (en) | Valve for engine test | |
| EP3572657A3 (en) | Method of operating an internal combustion engine | |
| CN204877572U (en) | Put overhead valve valve timing mechanism of camshaft down | |
| CN205956520U (en) | Exhaust gas recirculation (EGR) valve | |
| CN202811100U (en) | Valve actuating mechanism | |
| CN205243665U (en) | Can strengthen refrigerated engine cylinder of valve portion lid | |
| CN203685332U (en) | Improved internal combustion engine air valve structure | |
| CN205225480U (en) | Wear -resisting type engine cylinder lid | |
| CN201246200Y (en) | Rotary valve for internal combustion engine | |
| CN203081519U (en) | Internal combustion engine cam ejecting mechanism capable of realizing exhaust gas recirculation | |
| CN202132135U (en) | Small-sized gasoline engine with internal EGR low-temperature consumption system | |
| CN201581997U (en) | Energy-saving and emission-reducing air intake ducts for engines | |
| CN218845274U (en) | Air pressure sealing reversing valve of RTO heat accumulation combustion device | |
| CN205206894U (en) | Novel camshaft structure | |
| CN203756375U (en) | Device for reducing carbon deposition of EGR valve | |
| CN205206898U (en) | Cam structure | |
| CN205206895U (en) | Camshaft structure | |
| CN205206896U (en) | Novel camshaft | |
| CN103644010B (en) | The internal combustion engine valve structure of a kind of improvement | |
| CN202756043U (en) | Intake valve of engine | |
| CN105240138A (en) | Engine cylinder cover capable of improving cooling of valve part and reducing heat loss | |
| CN202756042U (en) | Novel engine inlet valve | |
| CN105240146A (en) | Engine cylinder cover capable of enhancing valve cooling effect | |
| CN208633910U (en) | Diesel Engine's Air Valve |
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: 20120425 Termination date: 20160805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |