CN205243662U - Can change cooling of valve portion and calorific loss's engine cylinder lid - Google Patents
Can change cooling of valve portion and calorific loss's engine cylinder lid Download PDFInfo
- Publication number
- CN205243662U CN205243662U CN201520864511.8U CN201520864511U CN205243662U CN 205243662 U CN205243662 U CN 205243662U CN 201520864511 U CN201520864511 U CN 201520864511U CN 205243662 U CN205243662 U CN 205243662U
- Authority
- CN
- China
- Prior art keywords
- lid
- air valve
- pipe seat
- valve pipe
- cooling
- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a can change cooling of valve portion and calorific loss's engine cylinder lid, including the lid, be provided with intake duct, exhaust passage, combustion chamber on the lid, advance the air valve pipe seat, arrange the water hole and the ceramic heat insulating ring of air valve pipe seat, intercommunication water jacket and slot. The utility model discloses when advancing the air valve pipe seat and arrange the air valve pipe seat when taking place friction and wear at work, accessible more swap -in air valve pipe seat keeps in repair the engine cylinder lid with the mode of arranging the air valve pipe seat, and easy maintenance nature is good, and it directly causes into the air valve pipe seat and arrange the air valve pipe seat and cool off through setting up the cooling water of water hole in with the water jacket, the cooling effect is good, and it sets up ceramic heat insulating ring on through the lid terminal surface in combustion chamber limit portion moreover, makes the high temperature gas and the area of contact of lid reduce, and ceramic heat insulating ring's heat -proof quality is good to the heat energy of reduction gas that can be very big scatters and disappears, improves the thermal efficiency of engine.
Description
Technical field
The utility model relates to a kind of engine components, particularly a kind of cylinder cap of engine.
Background technology
Cylinder head is one of main parts size of engine, and major function is sealing cylinder top, and and pistonCombustion chamber is formed together with cylinder on top. In cylinder head, be provided with inlet valve and exhaust valve, inlet valve and exhaustIn door, be provided with valve stem, engine in the course of the work, by valve stem control inlet valve and exhaust valveOpen and close, realize from inlet valve inhale fresh air or combustion gas, the waste gas from exhaust valve is discharged burning.
Because engine there will be high-frequency knot between valve stem and inlet valve, exhaust valve in the course of the workClose and separate, inlet valve and the easy fretting wear of exhaust valve part that this makes cylinder, cause the valve stem can notExcellent sealing inlet and outlet door, causes engine efficiency to reduce, but cylinder head of the prior art is entiretyFormula structure, makes the comparatively difficulty of maintenance after the inlet and outlet door section fretting wear of cylinder head.
And in the time of engine operation, inlet valve directly contacts with high-temperature fuel gas with exhaust valve, valve portion temperatureHeight is very fast, and temperature is higher, and the rising of the intensity temperature of valve portion can reduce, in prior art to cylinderThe Cooling Design of the valve portion of lid is poor, not can solve the Yin Wendu of valve portion rising and causes strength decreasedTechnical problem.
And existing cylinder, it is generally formed by cast iron materials casting, and its heat-insulating property is poor,The heat energy of the high-temperature fuel gas water that is cooled is greatly taken away, and causes the thermal efficiency of engine lower, heat energy waveTake more serious.
Utility model content
In view of this, the purpose of this utility model is to provide and a kind ofly can changes starting of the cooling and thermal loss of valve portionMachine cylinder cap, and in solution prior art, Yin Wendu can not be understood by well cooling, valve portion in the valve portion of cylinder headRising causes the technical problem of strength decreased; And the heat energy that the solves high-temperature fuel gas water band that is cooled greatlyWalk, cause the lower technical problem of the thermal efficiency of engine.
The utility model can change the engine cylinder cover of the cooling and thermal loss of valve portion, comprises lid, described lidOn body, be provided with air intake duct, exhaust duct and combustion chamber;
The oral area of described air intake duct is provided with the inlet valve base coordinating with valve stem, described exhaust duct oral areaBe provided with the exhaust valve base coordinating with valve stem;
Described inlet valve base and exhaust valve base include body and are arranged on the convex annular of body leading portionEdge, the oral area of described air intake duct and exhaust duct be provided with the recessed seam of the annular coordinating with annular flange flange and with pipeThe groove that body coordinates, is provided with attenuate annular flange flange and pipe on the position that described body is connected with annular flange flangeThe groove of body thickness;
On described lid, be also provided with water jacket and be communicated with the water hole of water jacket and groove;
On the end face of described lid, be also provided with ceramic insulation ring, described ceramic insulation ring is positioned at limit, combustion chamberPortion.
Further, on described body, be provided with the first sealing ring coordinating with groove walls, the recessed seam of described annularOn be provided with the second sealing ring coordinating with annular flange flange.
Further, described inlet valve base and exhaust valve base are straight tube structure.
The beneficial effects of the utility model:
1, the utility model can change the engine cylinder cover of the cooling and thermal loss of valve portion, and it is by air intake ductWith exhaust duct oral area, inlet valve base and exhaust valve base are set, make when inlet valve base and exhaust valve pipeThere is fretting wear in seat, while causing gap between all the other valve stems to exceed design load, can lead at workCross the mode of changing inlet valve base and exhaust valve base engine cylinder cover is keeped in repair, servicing easeGood.
2, the utility model can change the engine cylinder cover of the cooling and thermal loss of valve portion, and it is by arranging water holeWater jacket and groove are communicated with, thereby the cooling water in water jacket is directly caused to inlet valve base and exhaust valve pipeSeat carry out cooling, good cooling results, solved lid valve portion and inlet valve base and exhaust valve base because ofTemperature raises and the problem of strength decreased.
3, the utility model can change the engine cylinder cover of the cooling and thermal loss of valve portion, and it is by combustion chamberOn the lid end face of limit portion, ceramic insulation ring is set, the contact area of high-temperature fuel gas and lid is reduced, potteryThe heat-proof quality of porcelain heat insulation loop is good, thus the heat energy dissipation of minimizing combustion gas that can be very large, raising engineThe thermal efficiency.
Brief description of the drawings
Fig. 1 is the broken section structure that the present embodiment can change the engine cylinder cover of the cooling and thermal loss of valve portionSchematic diagram;
Fig. 2 is the structural representation of exhaust valve base.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment can change the engine cylinder cover of the cooling and thermal loss of valve portion, comprises lid1, on described lid, be provided with air intake duct 2, exhaust duct 3 and combustion chamber 4;
The oral area of described air intake duct is provided with the inlet valve base 5 coordinating with valve stem, described exhaust duct oral areaBe provided with the exhaust valve base 6 coordinating with valve stem;
Described inlet valve base and exhaust valve base include body 7 and are arranged on the convex annular of body leading portionEdge 8, the oral area of described air intake duct and exhaust duct be provided with the recessed seam of the annular coordinating with annular flange flange and with pipeThe groove that body coordinates, is provided with attenuate annular flange flange and pipe on the position that described body is connected with annular flange flangeThe groove 9 of body thickness;
On described lid, be also provided with water jacket 10 and be communicated with the water hole 11 of water jacket and groove;
On the end face of described lid, be also provided with ceramic insulation ring 12, described ceramic insulation ring is positioned at combustion chamberLimit portion.
The present embodiment can change the engine cylinder cover of the cooling and thermal loss of valve portion, and it is by air intake duct and rowAir flue oral area arranges inlet valve base and exhaust valve base, makes to exist when inlet valve base and exhaust valve baseIn work, there is fretting wear, while causing gap between all the other valve stems to exceed design load, can be by moreThe mode of swap-in valve base and exhaust valve base is keeped in repair engine cylinder cover, and servicing ease is good.
And the present embodiment can change the engine cylinder cover of the cooling and thermal loss of valve portion, it will by water hole is setWater jacket and groove are communicated with, thereby the cooling water in water jacket is directly caused to inlet valve base and exhaust valve baseCarry out coolingly, good cooling results, has solved lid valve portion and inlet valve base and exhaust valve base because of temperatureDegree raises and the problem of strength decreased.
And the present embodiment can change the engine cylinder cover of the cooling and thermal loss of valve portion, it is by limit, combustion chamberOn the lid end face of portion, ceramic insulation ring is set, the contact area of high-temperature fuel gas and lid is reduced, potteryThe heat-proof quality of heat insulation loop is good, thus the heat energy dissipation of minimizing combustion gas that can be very large, the heat of raising engineEfficiency.
As the improvement to the present embodiment, on described body, be provided with the first sealing ring coordinating with groove walls13, on the recessed seam of described annular, be provided with the second sealing ring 14 coordinating with annular flange flange, close by arrangingSeal can better stop cooling water to enter in combustion chamber.
As the improvement to the present embodiment, described inlet valve base and exhaust valve base are straight tube structure, straight tubeResistance to air-flow is less, is conducive to improve the intake and exhaust efficiency of engine.
Finally explanation, above embodiment is only unrestricted in order to the technical solution of the utility model to be described,Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art shouldWork as understanding, can modify or be equal to replacement the technical solution of the utility model, and not depart from this realityBy aim and the scope of new technique scheme, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. the engine cylinder cover that can change the cooling and thermal loss of valve portion, comprises lid, on described lidBe provided with air intake duct, exhaust duct and combustion chamber, it is characterized in that:
The oral area of described air intake duct is provided with the inlet valve base coordinating with valve stem, described exhaust duct oral areaBe provided with the exhaust valve base coordinating with valve stem;
Described inlet valve base and exhaust valve base include body and are arranged on the convex annular of body leading portionEdge, the oral area of described air intake duct and exhaust duct be provided with the recessed seam of the annular coordinating with annular flange flange and with pipeThe groove that body coordinates, is provided with attenuate annular flange flange and pipe on the position that described body is connected with annular flange flangeThe groove of body thickness;
On described lid, be also provided with water jacket and be communicated with the water hole of water jacket and groove;
On the end face of described lid, be also provided with ceramic insulation ring, described ceramic insulation ring is positioned at limit, combustion chamberPortion.
2. the engine cylinder cover that can change the cooling and thermal loss of valve portion according to claim 1, its spyLevy and be: on described body, be provided with the first sealing ring coordinating with groove walls, on the recessed seam of described annularBe provided with the second sealing ring coordinating with annular flange flange.
3. the engine cylinder cover that can change the cooling and thermal loss of valve portion according to claim 1, its spyLevy and be: described inlet valve base and exhaust valve base are straight tube structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864511.8U CN205243662U (en) | 2015-11-02 | 2015-11-02 | Can change cooling of valve portion and calorific loss's engine cylinder lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864511.8U CN205243662U (en) | 2015-11-02 | 2015-11-02 | Can change cooling of valve portion and calorific loss's engine cylinder lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243662U true CN205243662U (en) | 2016-05-18 |
Family
ID=55942744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864511.8U Expired - Fee Related CN205243662U (en) | 2015-11-02 | 2015-11-02 | Can change cooling of valve portion and calorific loss's engine cylinder lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243662U (en) |
-
2015
- 2015-11-02 CN CN201520864511.8U patent/CN205243662U/en not_active Expired - Fee Related
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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: 20160518 Termination date: 20161102 |