CN201635799U - Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system - Google Patents
Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system Download PDFInfo
- Publication number
- CN201635799U CN201635799U CN2009202069275U CN200920206927U CN201635799U CN 201635799 U CN201635799 U CN 201635799U CN 2009202069275 U CN2009202069275 U CN 2009202069275U CN 200920206927 U CN200920206927 U CN 200920206927U CN 201635799 U CN201635799 U CN 201635799U
- Authority
- CN
- China
- Prior art keywords
- type oil
- cylinder head
- head cover
- gas
- oil gas
- 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 description 35
- 210000000038 chest Anatomy 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000001105 regulatory Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 57
- 239000003921 oil Substances 0.000 description 52
- 238000000034 method Methods 0.000 description 5
- 239000010721 machine oil Substances 0.000 description 2
- 230000000051 modifying Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 210000003027 Ear, Inner Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Abstract
The utility model provides an engine cylinder cover hood and a crankcase ventilating circulation system. An impact type oil gas separating cavity and a cyclone type oil gas separating cavity are totally integrated on a cylinder cover hood; an exhaust passage at the tail end of the impact type oil gas separating cavity is directly connected with a gas inlet of the side wall at the upper part of the cyclone type oil gas separating cavity; the top of the cyclone type oil gas separating cavity is provided with a gas outlet, and the bottom is integrated with a siphon type oil return structure; the oil return structure is communicated to a camshaft chamber; the gas outlet of the cyclone type oil gas separating cavity of the cylinder cover hood is connected with a regulating valve by an external connecting pipeline and connected to a gas inlet manifold; the gas inlet manifold is connected with an engine cylinder body; the siphon type oil return structure of the cyclone type oil gas separating cavity of the cylinder cover hood extends to the camshaft chamber; and the cylinder cover hood and the camshaft chamber are communicated with an oil pan by an oil return passage in the engine cylinder body. The utility model can improve the compactness of the structure and the oil gas separating effect and reduce the invalid pressure loss of a gas flow.
Description
Technical field
The utility model relates to the crankshaft box ventilation circulation system and the cylinder head cover technology of internal-combustion engine, particularly a kind of engine cylinder housing, and the crankshaft box ventilation circulation system that comprises this cylinder head cover.
Background technique
Referring to Fig. 1, in the existing engine crankcase ventilation circulation system, cylinder head cover 7 generally all is integrated with impact type disengagement chamber structure (being the labyrinth type oil gas separation structure), the disengagement chamber that outside cylinder head cover 7, connects the external of one-level secondary separation again by external pipeline 14, as vortex type oil gas disengagement chamber 3, the oil of separating is introduced oil sump 9 by external oil circuit 17, and the gas after the separation takes back the intake manifold 16 of engine aspirating system by pressure regulation flow-limiting valve 15.
The shortcoming of this structure has: 1, a gas oil separation structure part is integrated in the cylinder head cover, and is a part of then outside the cylinder head cover that is provided with, structural redundancy; 2, the inside and outside gas oil separation structure of cylinder head cover need connect by long external pipeline, and the invalid crushing height of gas flow process makes oil gas separation be difficult to guarantee.
Summary of the invention
The purpose of this utility model provides a kind of engine cylinder housing of integrated oil gas structure and the crankcase ventilation system that comprises this cylinder head cover, to increase the compactedness of structure, reduces the invalid crushing of gas flow process, improves oil gas separation.
The technical solution of the utility model is as follows:
A kind of engine cylinder housing of integrated oil gas structure, it comprises the cylinder head cover body and is integrated in the intrinsic impact type Oil-gas Separation of cylinder head cover chamber; Described impact type Oil-gas Separation chamber is by the multistage baffle plate that is crisscross arranged in the intrinsic elongated cavity of cylinder head cover, and on cavity welded cover plate and constituting, spill port towards camshaft chest is arranged in the bottom in impact type Oil-gas Separation chamber, and oil and gas import is arranged on an end in impact type Oil-gas Separation chamber.Further, the other end in impact type Oil-gas Separation chamber, the tail end position that is impact type Oil-gas Separation chamber is integrated with a columniform vortex type oil gas disengagement chamber, lower half portion cavity forming of described vortex type oil gas disengagement chamber is in the cylinder head cover body, upper half part cavity forming is on the extension of the cover plate in impact type Oil-gas Separation chamber, and the welding of two-part cavity forms an integral body; The outlet passageway of impact type Oil-gas Separation chamber end directly connects the suction port of vortex type oil gas disengagement chamber upper portion side wall; Top at described vortex type oil gas disengagement chamber is provided with the air outlet, at vortex type oil gas disengagement chamber bottom, i.e. the also one-body molded oil return structure that siphon tube type is arranged of lower half portion cavity bottom, the oil return structure passes to camshaft chest.
The cylinder head cover of this integrated morphology can use metallic material with traditional casting technique moulding, employing artificial resin better, by mould with all funtion part that has been integrated in moulding together.
A kind of engine crankcase ventilation circulation system that comprises the said cylinder housing, it comprises cylinder head cover, engine cylinder-body, camshaft chest, oil sump, modulating valve, intake manifold and connecting pipeline.The air outlet of the vortex type oil gas disengagement chamber of described cylinder head cover connects modulating valve by outside connecting pipeline, inserts intake manifold again, and intake manifold connects engine cylinder-body again; The siphon tube type oil return structure of the vortex type oil gas disengagement chamber of described cylinder head cover extends camshaft chest, and cylinder head cover and camshaft chest are communicated with oil sump by the back oil road of engine cylinder-body inside.
The cylinder head cover that the utility model proposes reasonably gathers together each several parts such as impact type Oil-gas Separation chamber, vortex type oil gas disengagement chamber, oil return structure, form an overall structure, compact structure is beneficial to assembling, more can fully guarantee the reliability of this systemic-function.Save tediously long ventilation duct and the return tube of engine body exterior simultaneously, can reduce the invalid crushing of gas flow process, improved oil gas separation.
Description of drawings
Fig. 1 is the structural representation of the crankshaft box ventilation circulation system before improving;
Fig. 2 is the structural representation of the cylinder head cover body portion that the utility model proposes;
Fig. 3 is the cover plate structural representation partly that the utility model proposes;
Fig. 4 is the structural representation of the crankshaft box ventilation circulation system after improving.
Embodiment
Referring to Fig. 2 and Fig. 3, this cylinder head cover adopts the artificial resin material to make, and it comprises cylinder head cover body 1, cover plate 13, impact type Oil-gas Separation chamber 2, vortex type oil gas disengagement chamber 3 and oil return structure 4 etc.Impact type Oil-gas Separation chamber 2 is integrated in the cylinder head cover body 1, its be by in the elongated cavity in cylinder head cover body 1 (this cavity is the recessed cavity that forms from cylinder head cover surface) by the multistage baffle plate that is crisscross arranged, and constitute (being that cover plate 13 is welded on the surface of cylinder head cover) in welded cover plate on the cavity 13, promptly form maze-type structure, its suction port is arranged on an end in impact type Oil-gas Separation chamber 2, and the spill port 10 towards camshaft chest is arranged on cover plate 13.The other end in impact type Oil-gas Separation chamber 2, promptly be integrated with a columniform vortex type oil gas disengagement chamber 3 in the tail end position in impact type Oil-gas Separation chamber 2, lower half portion cavity forming of described vortex type oil gas disengagement chamber 3 is in cylinder head cover body 1, upper half part cavity forming is on the extension of the cover plate 13 in impact type Oil-gas Separation chamber 2, the welding of two-part cavity forms an integral body, promptly constitutes vortex type oil gas disengagement chamber 3.The outlet passageway 5 of impact type Oil-gas Separation chamber 2 ends directly connects the suction port of vortex type oil gas disengagement chamber 3 upper portion side wall.Be provided with steam outlet pipe 12 at the top of described vortex type oil gas disengagement chamber 3 (being on the cover plate 13), at vortex type oil gas disengagement chamber 3 bottom, promptly lower half portion cavity bottom is also one-body molded a siphon tube type oil return structure 4, and oil return structure 4 passes to camshaft chest 6.
The said cylinder housing is applied in the engine crankcase ventilation circulation system, the structure of system as shown in Figure 4, system comprises cylinder head cover 7, engine cylinder-body 18, camshaft chest 6, oil sump 9, pressure regulation flow-limiting valve 15, intake manifold 16 and connecting pipeline 14, the cylinder head cover structure that cylinder head cover 7 is shown in Figure 2, the steam outlet pipe 12 of the vortex type oil gas disengagement chamber 3 of this cylinder head cover 7 connects pressure regulation flow-limiting valve 15 by outside connecting pipeline 14, insert intake manifold 16 again, intake manifold 16 connects engine cylinder-body 18 again; The siphon tube type oil return structure 4 of the vortex type oil gas disengagement chamber 3 of described cylinder head cover 7 extends camshaft chest 6, and cylinder head cover 7 and camshaft chest 6 are communicated with oil sump 9 by the back oil road 8 of engine cylinder-body inside.
By Fig. 2, Fig. 3 and Fig. 4 as can be known, the mixed air of crankcase gas blowby and combustion gas etc. at first enters the impact type Oil-gas Separation chamber 2 that is integrated on the cylinder head cover by the oil and gas import 11 of cylinder head cover 7 one ends, through the impact type Oil-gas Separation, the machine oil of separating etc. is directly got back to camshaft chest 6 by spill port 10.The tail end of oil gas in impact type Oil-gas Separation chamber 2 that separates through impact type is introduced to by outlet passageway 5 in the vortex type oil gas disengagement chamber 3 that is integrated on the cylinder head cover.Gas after vortex type oil gas disengagement chamber 3 separates is discharged by steam outlet pipe 12, receives the intake manifold 16 of engine aspirating system by external pipeline 14, pressure regulation flow-limiting valve 15; And the machine oil of separating etc. are directly got back to camshaft chest 6 by siphon tube type oil return structure 4, flow in the oil sump 9 by back oil road 8 again.
Claims (2)
1. the engine cylinder housing of an integrated oil gas structure, it comprises cylinder head cover body (1) and is integrated in impact type Oil-gas Separation chamber (2) in the cylinder head cover body (1);
It is characterized in that: described impact type Oil-gas Separation chamber (2) is by the multistage baffle plate that is crisscross arranged in the elongated cavity in cylinder head cover body (1), and on described cavity welded cover plate (13) and constituting, spill port (10) towards camshaft chest is arranged bottom impact type Oil-gas Separation chamber (2), and oil and gas import (11) is arranged on an end in impact type Oil-gas Separation chamber (2); The other end in impact type Oil-gas Separation chamber (2), the tail end position that is impact type Oil-gas Separation chamber (2) is integrated with a columniform vortex type oil gas disengagement chamber (3), lower half portion cavity forming of described vortex type oil gas disengagement chamber (3) is in cylinder head cover body (1), upper half part cavity forming is on the extension of the cover plate (13) in impact type Oil-gas Separation chamber (2), and the welding of two-part cavity forms a whole vortex type oil gas disengagement chamber; The terminal outlet passageway (5) in impact type Oil-gas Separation chamber (2) directly connects the suction port of vortex type oil gas disengagement chamber (3) sidewall; Be provided with steam outlet pipe (12) at the top of described vortex type oil gas disengagement chamber (3), at vortex type oil gas disengagement chamber (3) bottom, be the also downward one-body molded siphon tube type oil return structure (4) that has of lower half portion cavity bottom, oil return structure (4) passes to camshaft chest (6).
2. engine crankshaft ventilation system that comprises the described cylinder head cover of claim 1, it comprises cylinder head cover (7), engine cylinder-body (18), camshaft chest (6), oil sump (9), pressure regulation flow-limiting valve (15), intake manifold (16) and connecting pipeline (14);
It is characterized in that: described cylinder head cover (7) adopts the described cylinder head cover of claim 1, the steam outlet pipe (12) of the vortex type oil gas disengagement chamber (3) of described cylinder head cover (7) connects pressure regulation flow-limiting valve (15) by outside connecting pipeline (14), insert intake manifold (16) again, intake manifold (16) connects engine cylinder-body (18) again; The siphon tube type oil return structure (4) of the vortex type oil gas disengagement chamber (3) of described cylinder head cover (7) extends camshaft chest (6), and cylinder head cover (7) and camshaft chest (6) are communicated with oil sump (9) by the back oil road (8) of engine cylinder-body inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202069275U CN201635799U (en) | 2009-10-30 | 2009-10-30 | Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202069275U CN201635799U (en) | 2009-10-30 | 2009-10-30 | Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635799U true CN201635799U (en) | 2010-11-17 |
Family
ID=43080288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202069275U Expired - Fee Related CN201635799U (en) | 2009-10-30 | 2009-10-30 | Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635799U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100332A (en) * | 2014-08-04 | 2014-10-15 | 安徽江淮汽车股份有限公司 | Engine cylinder cover shield and crankcase ventilation system |
| CN110043344A (en) * | 2019-04-10 | 2019-07-23 | 广西玉柴机器股份有限公司 | Engine removes the oil gas circulatory system with high efficiency |
| CN111556781A (en) * | 2017-12-06 | 2020-08-18 | 康明斯滤清系统知识产权公司 | Crankcase ventilation system with vortex breaker reducing tangential outflow fluid pressure drop |
-
2009
- 2009-10-30 CN CN2009202069275U patent/CN201635799U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100332A (en) * | 2014-08-04 | 2014-10-15 | 安徽江淮汽车股份有限公司 | Engine cylinder cover shield and crankcase ventilation system |
| CN111556781A (en) * | 2017-12-06 | 2020-08-18 | 康明斯滤清系统知识产权公司 | Crankcase ventilation system with vortex breaker reducing tangential outflow fluid pressure drop |
| CN111556781B (en) * | 2017-12-06 | 2022-03-29 | 康明斯滤清系统知识产权公司 | Crankcase ventilation system with vortex breaker reducing tangential outflow fluid pressure drop |
| CN110043344A (en) * | 2019-04-10 | 2019-07-23 | 广西玉柴机器股份有限公司 | Engine removes the oil gas circulatory system with high efficiency |
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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: 20101117 Termination date: 20131030 |