CN201517449U - Open type ridge area double-layered water chamber cylinder cover - Google Patents
Open type ridge area double-layered water chamber cylinder cover Download PDFInfo
- Publication number
- CN201517449U CN201517449U CN2009202287706U CN200920228770U CN201517449U CN 201517449 U CN201517449 U CN 201517449U CN 2009202287706 U CN2009202287706 U CN 2009202287706U CN 200920228770 U CN200920228770 U CN 200920228770U CN 201517449 U CN201517449 U CN 201517449U
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- Prior art keywords
- bridge
- district
- nose
- open type
- hydroecium
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Abstract
An open type ridge area double-layered water chamber cylinder cover belongs to the technical field of automobiles, which is characterized in that ridge areas are formed between two inlet valve and exhaust valve poles, an upper ridge area and a lower ridge area are separated by a web plate; a water inlet sleeve and a water outlet sleeve are arranged on the surface of a cylinder cover combustion chamber; the upper ridge area is positioned inside an upper water chamber to be closed; the lower ridge area is positioned inside a lower water chamber, adopts an opening structure and is communicated with the lower water chamber; the connecting holes on the web plate are used for through connection of the upper and the lower ridge areas; the lower ridge area is sealed through an oil injector sleeve; and the oil injector sleeve on the conical surface at the lower end of an oil injector hole is connected by adopting a multi-layered tooth shape, and the upper end of the oil injector hole is pressed into a sealed key slot by assembling the key slot in a matching manner, and the oil injector sleeve is made of stainless steel. In the utility model, the double-layered water chambers are adopted, the lower ridge area adopted an open type structure, the upper and the lower ridge areas are cooled separately, therefore, the cooling efficiency of the whole ridge area is improved, the cracking probability of the ridge areas is reduced, and the cracking possibility of the engine cylinder cover is eliminated. The sand core inside the cylinder cover can be cleared up directly from the open type ridges areas during casting process, therefore, the casting difficulty of the cylinder cover is reduced.
Description
Technical field
The utility model relates to the double-deck hydroecium cylinder cap in open type bridge of the nose district that can effectively cool off, also can reduce cylinder cap casting difficulty in a kind of automobile technical field by cooling water to the bridge of the nose district of cylinder cap.
Background technique
At present, enough intensity must be arranged, to guarantee under the pressure of explosion of the highest 20MPa, enough fatigue safety coefficients being arranged for the cylinder head of high-power, low emission, high reinforcing stimulus.When bearing high mechanical load, cylinder head is also being born very high heat load.For preventing the too high cylinder head cracking that causes of heat load, the cooling of the cooling of cylinder head, especially bottom " bridge of the nose district " is most important.For strengthening the key position cooling, the employing method is to adopt high powered water pump individual layer hydroecium structure or double-deck hydroecium technology usually at present, to improve bridge of the nose district water velocity, strengthens cooling, prevents cracking.But there is following drawback:
1, can't fundamentally eliminate cracking.Because the special construction characteristics in bridge of the nose district---hollow adds the four sides annular space, even adopted high powered water pump or double-deck hydroecium, also just reduced the frequency of cracking, can't fundamentally eliminate cracking.
2, to the not improvement of cracking in bridge of the nose district down.Though adopt double-deck hydroecium can improve the cooling in whole bridge of the nose district, emphasis is the working environment that has improved last bridge of the nose district, has eliminated the cracking in last bridge of the nose district, for the bigger following bridge of the nose district of cracking probability but without any improvement.
3, adopt double-deck hydroecium to increase the casting difficulty in time bridge of the nose district.Because up and down the bridge of the nose distinguishes casting, the space in following bridge of the nose district is very narrow and small, around adding by the inlet and exhaust valve band of column around, the very inconvenience of core cleaning after the casting complete.If the core cleaning is not thorough, so in the cooling procedure in later stage, because the core resistance causes the cylinder cap cracking.
Summary of the invention
For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of open type bridge of the nose district double-deck hydroecium cylinder cap, adopts the structure of open type bridge of the nose district, double-deck hydroecium, with the purpose that realizes eliminating bridge of the nose district cracking, reducing cylinder cap casting difficulty.
For achieving the above object, the technical solution of the utility model is: two air inlet door pillars and two exhaust door pillars distribute around the oil injector hole, between air inlet door pillar and exhaust door pillar, bridge of the nose district is arranged, oil sprayer cylinder between two air inlet door pillars and two exhaust door pillars has bridge of the nose district, separate with web between last bridge of the nose district and the following bridge of the nose district, web and top surface of cylinder cover form upper tank, web and The combustion chamber face form lower header, the The combustion chamber face is provided with into the water cover and goes out water jacket, last bridge of the nose district is in upper tank inside, form closure, following bridge of the nose district adopts hatch frame in lower header, communicate with lower header, attachment hole on the web will go up bridge of the nose district and following bridge of the nose district connects, and is provided with the hydroecium hole at the firing chamber face, and cylinder cap hydroecium hole connects with cylinder body upper tank hole.
Sealing is overlapped by oil sprayer by bridge of the nose district down of the present utility model, and the lower end conical surface that oil sprayer is enclosed within oil injector hole adopts the multilayer profile of tooth to connect, and the upper end adopts keyway to press-fit in the cooperation indentation sealing keyway, and the oil sprayer cover adopts stainless iron to make.
The utility model adopts double-deck hydroecium, descends bridge of the nose district is the open type structure, and last bridge of the nose district distinguishes with the following bridge of the nose cools off, and the internal cores in the following bridge of the nose district of open type can directly be cleared up, and can reduce the casting difficulty and the cracking of cylinder cap greatly.
The utility model technology has following advantage compared with the prior art:
1, owing to adopt double-deck hydroecium, the same bridge of the nose down in last bridge of the nose district distinguishes and cools off, and has improved the cooling effectiveness in whole bridge of the nose district, thereby has totally reduced the cracking probability in bridge of the nose district.
2, owing to adopt open type bridge of the nose district, the oil sprayer cover that whole bridge of the nose district is down installed by the later stage on entity replaces, add stainless heat-transfer coefficient significantly greater than cast iron, in assurance function, fundamentally eliminated the possibility of engine cylinder cover cracking.
3, owing to adopt open type bridge of the nose district, in fact whole bridge of the nose district down can become the desanding mouth in casting, and inner core can directly directly be cleared up from opening bridge of the nose district, thereby greatly reduces the casting difficulty of cylinder cap.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is the K-K sectional view of Fig. 1;
Fig. 3 is the L-L sectional view of Fig. 1.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, on the firing chamber of cylinder cap 1 face 2, two air inlet door pillars 4 and two exhaust door pillars 5 distribute around oil injector hole 3, oil sprayer cylinder between two air inlet door pillars 4 and two exhaust door pillars 5 is called bridge of the nose district 9, the oil sprayer cylinder of middle pectoral plate more than 6 is called bridge of the nose district 7, and the following oil sprayer cylinder of web is called bridge of the nose district 8 down; Web 6 and top surface of cylinder cover 18 form cavity be called upper tank 10, the cavity that web 6 and The combustion chamber face 2 form is called lower header 11, connects by the attachment hole on the web 6 12 between upper tank 10 and the lower header 11; The combustion chamber face 2 is provided with into water cover 13 and goes out water jacket 14.
Before the cylinder cap assembling, must at first press-fit oil sprayer cover 15, form bridge of the nose district 8 down.Press-fit in the process, the oil sprayer cover 15 lower end conical surfaces 16 with oil injector hole 3 utilize flute profile to form multi-sealed band, and the upper end is overlapped oil sprayer to form in the 15 indentation sealing keyways 17 by the roll extrusion technology and gone up sealing.
During work, enter lower header 11 through the cooling water of water pump from the water inlet cover 13 of the firing chamber face 2 of cylinder cap 1, the cooling water that enters lower header 11 is looped around the following bridge of the nose district 8 that is formed with the lower end conical surface 16 and the upper end keyway 17 of oil injector hole 3 by the lower end by oil sprayer cover 15; Cooling water enters upper tank 10 by the attachment hole on the web 6 12 then, and the cooling water that enters upper tank 10 is looped around by cooling off around the last bridge of the nose district 7, gets back in the cylinder body by going out water jacket 14 then.
Claims (4)
1. the double-deck hydroecium cylinder cap in an open type bridge of the nose district, two air inlet door pillars (4) and two exhaust door pillars (5) distribute around the oil injector hole (3), between air inlet door pillar (4) and exhaust door pillar (5), bridge of the nose district is arranged, oil sprayer cylinder between two air inlet door pillars (4) and two exhaust door pillars (5) has bridge of the nose district (9), it is characterized in that: upward separate with web (6) between bridge of the nose district (7) and the following bridge of the nose district (8), web (6) and top surface of cylinder cover (18) form upper tank (10), web (6) and The combustion chamber face (2) form lower header (11), The combustion chamber face (2) is provided with into water cover (13) and goes out water jacket (14), last bridge of the nose district (7) is in upper tank (10) inside, form closed, following bridge of the nose district (8) is in lower header (11), adopt hatch frame, same lower header (11) communicates, attachment hole (12) on the web (6) will go up bridge of the nose district (7) and following bridge of the nose district (8) connects, and is provided with hydroecium hole (19) at firing chamber face (2), and cylinder cap hydroecium hole (19) connects with cylinder body upper tank hole.
2. the double-deck hydroecium cylinder cap in the open type bridge of the nose according to claim 1 district, it is characterized in that: following bridge of the nose district (8) seals by oil sprayer cover (15).
3. the double-deck hydroecium cylinder cap in the open type bridge of the nose according to claim 1 and 2 district, it is characterized in that: oil sprayer cover (15) adopts the multilayer profile of tooth to connect at the lower end conical surface (16) of oil injector hole (3), and the upper end adopts keyway to press-fit in the cooperation indentation sealing keyway (17).
4. the double-deck hydroecium cylinder cap in the open type bridge of the nose according to claim 3 district is characterized in that: oil sprayer cover (15) adopts stainless iron to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202287706U CN201517449U (en) | 2009-10-11 | 2009-10-11 | Open type ridge area double-layered water chamber cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202287706U CN201517449U (en) | 2009-10-11 | 2009-10-11 | Open type ridge area double-layered water chamber cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517449U true CN201517449U (en) | 2010-06-30 |
Family
ID=42498171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202287706U Expired - Fee Related CN201517449U (en) | 2009-10-11 | 2009-10-11 | Open type ridge area double-layered water chamber cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758701A (en) * | 2011-04-27 | 2012-10-31 | 广西玉柴机器股份有限公司 | Integral cylinder cover of water-cooled four-valve diesel engine and corresponding diesel engine water cooling method |
| CN105715402A (en) * | 2016-02-04 | 2016-06-29 | 潍柴动力股份有限公司 | Cooling water cavity structure of air cylinder cover and air cylinder cover |
-
2009
- 2009-10-11 CN CN2009202287706U patent/CN201517449U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758701A (en) * | 2011-04-27 | 2012-10-31 | 广西玉柴机器股份有限公司 | Integral cylinder cover of water-cooled four-valve diesel engine and corresponding diesel engine water cooling method |
| CN105715402A (en) * | 2016-02-04 | 2016-06-29 | 潍柴动力股份有限公司 | Cooling water cavity structure of air cylinder cover and air cylinder cover |
| CN105715402B (en) * | 2016-02-04 | 2018-08-07 | 潍柴动力股份有限公司 | A kind of Cooling Water Jacket of Cylinder Head structure and cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 441004 Xiangfan city of Hubei province Changyuan Automobile Industry Development Zone, East Valley Industrial Co. Ltd. Patentee after: Xiangfan Changyuan Donggu Industry & Trade Co., Ltd. Patentee after: Beijing Changyuan Hero City Technology Co., Ltd. Address before: 441004 Xiangfan city of Hubei province Changyuan Automobile Industry Development Zone, East Valley Industrial Co. Ltd. Patentee before: Xiangfan Changyuan Donggu Industrial Co., Ltd. Patentee before: Beijing Changyuan Hero City Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20161011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |