CN201250684Y - Maze structure and cover cap with same - Google Patents
Maze structure and cover cap with same Download PDFInfo
- Publication number
- CN201250684Y CN201250684Y CNU2008200050960U CN200820005096U CN201250684Y CN 201250684 Y CN201250684 Y CN 201250684Y CN U2008200050960 U CNU2008200050960 U CN U2008200050960U CN 200820005096 U CN200820005096 U CN 200820005096U CN 201250684 Y CN201250684 Y CN 201250684Y
- Authority
- CN
- China
- Prior art keywords
- labyrinth
- oil
- upper cover
- cover cap
- timing gear
- 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
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 6
- 239000010721 machine oil Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Images
Abstract
The utility model discloses a maze structure, which is formed by reinforcing bars inside an upper cover cap of a timing gear, and the maze is covered by a cover plate. While the mixed gas passes through the reinforcing bars, one part of machine oil is condensed on the reinforcing bars and then is separated by an oil-gas separator so as to realize the separation of the oil and the gas. The structure greatly improves the rigidness and the fatigue strength of the component, and improves the reliability of the component, and effectively realizes the separation of the oil and the gas. The utility model also discloses an upper cover cap of a timing gear with the maze structure.
Description
Technical field
The utility model relates to engine crankshaft ventilation system, particularly possesses a kind of labyrinth structure of Europe 3, Europe 4 emission level diesel engine crankcase ventilation systems and has the cover cap of this labyrinth structure.
Background technique
The crankcase ventilation system of most of motors all came separating mixed gas by deaerator in the past, individual engines also covers at cyclinder head cover and adds labyrinth structure, but because there is the risk of scurrying oil in most of crankcase ventilation system, if use deaerator separately or use labyrinth structure to carry out Oil-gas Separation separately, separation effect is not high, be difficult to satisfy emission request and Economy, simultaneously the timing upper cover function of other motors is simple relatively, fails integrated other functions.
Summary of the invention
The utility model solves the not enough of above-mentioned standing state and can make motor satisfy the emission standard of increasingly stringent by the organization plan of optimizing, and improves Economy simultaneously, and integrated other functions.
The utility model discloses a kind of labyrinth structure, this labyrinth is to utilize the stiffening rib in the timing gear upper cover to form, and this labyrinth covers with cover plate, thereby realizes the Oil-gas Separation function in labyrinth.
The invention also discloses a kind of timing gear upper cover, in upper cover, have oil filler, camshaft-signal sensor mounting hole and crankcase ventilation hole, in described upper cover, stiffening rib is set, form labyrinth structure, and this labyrinth covers with cover plate, thereby realizes the Oil-gas Separation function in labyrinth.
This structure has improved the rigidity and the fatigue strength of part greatly, has improved the reliability of part, and has realized the function of Oil-gas Separation effectively.
Description of drawings
Fig. 1 is the profile outline that the utlity model has the upper cover of labyrinth structure;
Fig. 2 is the general view of the utility model upper cover;
Fig. 3 is the constitutional diagram that labyrinth of the present utility model adds cover plate.
Description of reference numerals:
The 1-oil filler; The 2-stiffening rib; 3-camshaft-signal sensor mounting hole;
4-crankcase ventilation hole; 5-labyrinth cover plate.
Embodiment
As Fig. 1,2, have oil filler 1 and camshaft-signal sensor mounting hole 3 in the timing gear upper cover, also be furnished with stiffening rib 2 within it, these stiffening ribs 2 have formed a labyrinth structure.As shown in Figure 3, the labyrinth is covered, thereby realize the Oil-gas Separation function in labyrinth with cover plate 5.This structure is utilized existing part, and integrated relevant function had both been strengthened the effect of Oil-gas Separation, did not increase the complexity of Element Design again.
Gas in the crankcase enters the intake manifold burning by the stiffening rib 2 of timing gear upper cover behind crankcase ventilation hole 4.By in the process of stiffening rib 2, a part of machine oil is condensate on the stiffening rib 2, again by the separation of deaerator, has realized the effect of Oil-gas Separation at mixed gas.
Claims (2)
1, a kind of labyrinth structure is characterized in that: this labyrinth is to utilize the stiffening rib in the timing gear upper cover to form, and this labyrinth covers with cover plate, thereby realizes the Oil-gas Separation function in labyrinth.
2, a kind of timing gear upper cover has oil filler, camshaft-signal sensor mounting hole and crankcase ventilation hole in upper cover, it is characterized in that, in described upper cover, stiffening rib is set, form labyrinth structure, and this labyrinth covers with cover plate, thereby realize the Oil-gas Separation function in labyrinth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050960U CN201250684Y (en) | 2008-04-25 | 2008-04-25 | Maze structure and cover cap with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050960U CN201250684Y (en) | 2008-04-25 | 2008-04-25 | Maze structure and cover cap with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250684Y true CN201250684Y (en) | 2009-06-03 |
Family
ID=40746358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200050960U Expired - Fee Related CN201250684Y (en) | 2008-04-25 | 2008-04-25 | Maze structure and cover cap with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250684Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108911A (en) * | 2011-03-28 | 2011-06-29 | 重庆长安汽车股份有限公司 | Cylinder cover hood assembly |
| CN106438097A (en) * | 2016-10-27 | 2017-02-22 | 奇瑞汽车股份有限公司 | Engine timing cover cap structure and installing method thereof |
-
2008
- 2008-04-25 CN CNU2008200050960U patent/CN201250684Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108911A (en) * | 2011-03-28 | 2011-06-29 | 重庆长安汽车股份有限公司 | Cylinder cover hood assembly |
| CN106438097A (en) * | 2016-10-27 | 2017-02-22 | 奇瑞汽车股份有限公司 | Engine timing cover cap structure and installing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20140425 |