CN203584595U - Double-intake-valve and double-exhaust-valve type diesel engine cylinder cover - Google Patents
Double-intake-valve and double-exhaust-valve type diesel engine cylinder cover Download PDFInfo
- Publication number
- CN203584595U CN203584595U CN201320799771.2U CN201320799771U CN203584595U CN 203584595 U CN203584595 U CN 203584595U CN 201320799771 U CN201320799771 U CN 201320799771U CN 203584595 U CN203584595 U CN 203584595U
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- China
- Prior art keywords
- cylinder cover
- mounting hole
- arm mounting
- exhaust
- rocking arm
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- Expired - Fee Related
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Abstract
The utility model relates to a double-intake-valve and double-exhaust-valve type diesel engine cylinder cover which comprises a cylinder cover body. The cylinder cover body comprises an exhaust side face on one side of the cylinder cover body and an intake side face on the other side face of the cylinder cover body. The top of the cylinder cover body and the edge of the cylinder cover body are provided with rocker arm mounting hole seats and bolt hole seats which are evenly distributed at intervals respectively. Each rocker arm mounting hole seat comprises an exhaust control rocker arm mounting hole seat close to the side of the exhaust side face and an intake control rocker arm mounting hole seat close to the side of the intake side face. The cylinder cover body is provided with exhaust control rocker arm shaft holes and intake control rocker arm shaft holes. The edge of the inner side of the cylinder cover body is provided with second protrusions placed between every exhaust control rocker arm mounting hole seats, the second protrusions are in a convex shape, the big ends of the second protrusions are connected with the edge of the inner side of the cylinder cover body, and the heads of the second protrusions extend to the positions between every two adjacent exhaust control rocker arm mounting hole seats. Compared with the prior art, the purpose that heating of every two adjacent exhaust control rocker arm mounting hole seats and the edge of the cylinder cover body is achieved, and hot extrusion stress is effectively removed.
Description
Technical field
The utility model relates to diesel engine technologies field, definite says a kind of diesel engine cylinder head, and more precisely a kind of single cylinder adopts the cylinder cover for diesel engine of two valves and two exhaust valve designs.
Background technique
Cylinder head be one of important large parts in motor car engine, in the manufacturing and designing of motor, occupy an important position, its complicated internal structure, harsh applying working condition, make its reliability become the technological difficulties in engine design.Tradition single cylinder adopts the cylinder head of two valves and two exhaust valve designs in length direction two inside edges, when between two cylinders, interval corresponding position arranges except necessary bolt hole seat conventionally, need to arrange outside boss, it between bolt hole seat, is rectangular groove design, because the delivery temperature after fuel gas buring is high, conventionally exhaust valve extreme temperatures, and two exhaust control rocking arm mounting hole seats of two valves of control in single cylinder face design for pasting, there is again rocker shaft hole seat to pass simultaneously, cause the wall between two adjacent exhaust control rocking arm mounting hole seats thinner, in engine operation process, two adjacent exhaust control rocking arm mounting hole seat walls are thinner, be heated very fast, easily expanded by heating, and the cylinder cover thickness of its edge section is larger, heat is transmitted slower, cause being heated inhomogeneous, form hot extrusion stress, after long-term use, easily there is the thermalfatigue failure of metal.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of employing to form the second boss between two adjacent exhaust control rocking arm mounting hole seats, realize two adjacent exhaust control rocking arm mounting hole seats and cylinder cover edge and be heated evenly, effectively eliminate the cylinder cover for diesel engine of hot extrusion stress.
For achieving the above object, the utility model provides following technological scheme: a kind of two intake valves and double valve diesel engine cylinder head, include cylinder cover, cylinder cover one side is the exhaust side that is provided with exhaust pipe mouth, another side is the air inlet side that is provided with the air inlet mouth of pipe, cylinder cover edge, cylinder cover top is respectively equipped with rocking arm mounting hole seat evenly spaced apart and some evenly bolt hole seats spaced apart, rocking arm mounting hole seat comprises the air inlet control rocking arm mounting hole seat near the exhaust control rocking arm mounting hole seat of exhaust side one side and close air inlet side one side, cylinder cover is provided with the exhaust control rocker shaft hole through exhaust control rocking arm mounting hole seat, and through the air inlet control rocker shaft hole of air inlet control rocking arm mounting hole seat, it is characterized in that: the inside edge of described cylinder cover is provided with the second projection between two exhaust control rocking arm mounting hole seats, described the second projection is " protruding " font, the large end of the second projection is connected with cylinder cover inside edge, the head of the second projection extends between two adjacent exhaust control rocking arm mounting hole seats.
By adopting technique scheme, between two adjacent exhaust control rocking arm mounting hole seats, the second projection is set, the second projection adopts " protruding " font, well adaptability extends between two adjacent exhaust control rocking arm mounting hole seats, the hot extrusion stress that the second projection has arranged effective balance between exhaust control rocking arm mounting hole seat and the inward flange of cylinder cover, improves working life.
The utility model is further set to: between described two adjacent control rocking arm mounting hole seats, adopt arc surface transition.
By adopting technique scheme, arc surface can be eliminated and control rocking arm mounting hole seat and the cylinder cover knuckle between being connected, and eliminates stress.
The utility model is further set to: top and the bottom of described cylinder cover air inlet side and exhaust side are provided with some support rims.
By adopting technique scheme; support when support rim is placed for cylinder cover; avoid producing or at ordinary times in disassembly process, directly shelve on the ground and gouge or damage air inlet side and exhaust side, plays the object of protection air inlet side and exhaust side.
The utility model is further set to: the bottom of described cylinder cover upper air side and exhaust side is provided with the demoulding groove of being convenient to the cylinder cover bottom demoulding, and described demoulding groove comprises dovetail groove and the rectangle groove that the large bottom of oral area is little.
By adopting technique scheme, the setting of demoulding groove, make cylinder cover bottom form high bottom surface, high bottom surface makes between cylinder cover and mould to form the dispersion of turning back, eliminate to a certain extent the Adhesion force between cylinder cover side and mould, be convenient to throw off between the inlet and outlet side of cylinder cover and mould, adopt the cooperation of dovetail groove and rectangle groove simultaneously, be more conducive to the demoulding.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the three-dimensional view of the two intake valves of the utility model specific embodiment and double valve diesel engine cylinder head;
Fig. 2 is the left view of the two intake valves of the utility model specific embodiment and double valve diesel engine cylinder head;
Fig. 3 is the right elevation of the two intake valves of the utility model specific embodiment and double valve diesel engine cylinder head;
Fig. 4 is the worm's eye view of the two intake valves of the utility model specific embodiment and double valve diesel engine cylinder head.
Embodiment
Referring to accompanying drawing 1 to accompanying drawing 4, the two intake valves of the disclosed one of the utility model and double valve diesel engine cylinder head, include cylinder cover 1, cylinder cover 1 one sides are the exhaust side 2 that is provided with exhaust pipe mouth, and another side is the air inlet side 3 that is provided with the air inlet mouth of pipe; Cylinder cover 1 top cylinder cover 1 edge is respectively equipped with rocking arm mounting hole seat 4 evenly spaced apart and some evenly bolt hole seats 5 spaced apart; Rocking arm mounting hole seat 4 comprises the air inlet control rocking arm mounting hole seat 42 near the exhaust control rocking arm mounting hole seat 41 of exhaust side 2 one sides and close air inlet side 3 one sides, cylinder cover 1 is provided with the exhaust control rocker shaft hole 43 through exhaust control rocking arm mounting hole seat 41, and passes the air inlet control rocker shaft hole (not shown) of air inlet control rocking arm mounting hole seat 42.The inside edge of described cylinder cover 1 is provided with the second projection 44 between two exhaust control rocking arm mounting hole seats 41, described the second projection 44 is " protruding " font, the large end of the second projection 44 is connected with cylinder cover 1 inside edge, and the head of the second projection 44 extends between two adjacent exhaust control rocking arm mounting hole seats 41.And adopt arc surface 45 transition between described two adjacent control rocking arm mounting hole seats 41.
Inlet and outlet side 3,2 is easily because scuffing causes quality problems when avoiding cylinder cover 1 cylinder head transmits on production line raceway in the production processes such as assembling, and in the transportation process after packing, occurs gouge; Top and bottom in described cylinder cover 1 air inlet side 3 and exhaust side 2 are provided with some support rims 6; In this specific embodiment, in top and the bottom of air inlet side 3, three support rims 6 are set respectively, in top and the bottom of exhaust side 2, two support rims 6 are set respectively.Bottom in cylinder cover 1 upper air side 3 and exhaust side 2 is provided with the demoulding groove 7 of being convenient to the cylinder cover 1 bottom demoulding, and described demoulding groove 7 comprises dovetail groove and the rectangle groove that the large bottom of oral area is little; In this specific embodiment, in the bottom of cylinder cover, be also provided with two location cavitys 8, the shape difference of two location cavitys 8, one of them location cavity 8 stretches into an extending body at side and makes to locate cavity and have a scarce portion, form and another difference of locating cavity, be convenient to like this location to cylinder cover.
Claims (5)
1. two intake valves and double valve diesel engine cylinder head, include cylinder cover, cylinder cover one side is the exhaust side that is provided with exhaust pipe mouth, another side is the air inlet side that is provided with the air inlet mouth of pipe, cylinder cover edge, cylinder cover top is respectively equipped with rocking arm mounting hole seat evenly spaced apart and some evenly bolt hole seats spaced apart, rocking arm mounting hole seat comprises the air inlet control rocking arm mounting hole seat near the exhaust control rocking arm mounting hole seat of exhaust side one side and close air inlet side one side, cylinder cover is provided with the exhaust control rocker shaft hole through exhaust control rocking arm mounting hole seat, and through the air inlet control rocker shaft hole of air inlet control rocking arm mounting hole seat, it is characterized in that: the inside edge of described cylinder cover is provided with the second projection between two exhaust control rocking arm mounting hole seats, described the second projection is " protruding " font, the large end of the second projection is connected with cylinder cover inside edge, the head of the second projection extends between two adjacent exhaust control rocking arm mounting hole seats.
2. two intake valves and double valve diesel engine cylinder head according to claim 1, is characterized in that: between described two adjacent control rocking arm mounting hole seats, adopt arc surface transition.
3. according to two intake valves and double valve diesel engine cylinder head described in claim 1 or 2, it is characterized in that: top and the bottom of described cylinder cover air inlet side and exhaust side are provided with some support rims.
4. according to two intake valves and double valve diesel engine cylinder head described in claim 1 or 2, it is characterized in that: the bottom of described cylinder cover upper air side and exhaust side is provided with the demoulding groove of being convenient to the cylinder cover bottom demoulding, and described demoulding groove comprises dovetail groove and the rectangle groove that the large bottom of oral area is little.
5. two intake valves and double valve diesel engine cylinder head described in wanting 3 according to right, it is characterized in that: the bottom of described cylinder cover upper air side and exhaust side is provided with the demoulding groove of being convenient to the cylinder cover bottom demoulding, and described demoulding groove comprises dovetail groove and the rectangle groove that the large bottom of oral area is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799771.2U CN203584595U (en) | 2013-12-06 | 2013-12-06 | Double-intake-valve and double-exhaust-valve type diesel engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799771.2U CN203584595U (en) | 2013-12-06 | 2013-12-06 | Double-intake-valve and double-exhaust-valve type diesel engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584595U true CN203584595U (en) | 2014-05-07 |
Family
ID=50582529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320799771.2U Expired - Fee Related CN203584595U (en) | 2013-12-06 | 2013-12-06 | Double-intake-valve and double-exhaust-valve type diesel engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991902A (en) * | 2022-07-07 | 2022-09-02 | 江铃汽车股份有限公司 | Tool device for ensuring simultaneous seating of multiple valves |
-
2013
- 2013-12-06 CN CN201320799771.2U patent/CN203584595U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991902A (en) * | 2022-07-07 | 2022-09-02 | 江铃汽车股份有限公司 | Tool device for ensuring simultaneous seating of multiple valves |
| CN114991902B (en) * | 2022-07-07 | 2023-12-05 | 江铃汽车股份有限公司 | Tool device for ensuring that multiple valves are simultaneously seated in place |
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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: 20140507 Termination date: 20161206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |