CN204003001U - A kind of built-in centrifugal filtration structure - Google Patents
A kind of built-in centrifugal filtration structure Download PDFInfo
- Publication number
- CN204003001U CN204003001U CN201420463985.7U CN201420463985U CN204003001U CN 204003001 U CN204003001 U CN 204003001U CN 201420463985 U CN201420463985 U CN 201420463985U CN 204003001 U CN204003001 U CN 204003001U
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- China
- Prior art keywords
- helical blade
- hole
- oil baffle
- oil
- pcv
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- 238000001914 filtration Methods 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 25
- 239000011295 pitch Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of built-in centrifugal filtration structure, comprises cylinder head cover and oil baffle; In described cylinder head cover, be cast with air chamber and PCV chamber, at air chamber and the indoor helical blade mounting hole that is cast with respectively of PCV; On described oil baffle, be provided with helical blade and snap in hole; And helical blade mounting hole in air chamber and the helical blade on oil baffle snap in and be equipped with the second helical blade between hole, at the indoor helical blade mounting hole of PCV and the helical blade on oil baffle, snap in and between hole, be equipped with the first helical blade; Described the first helical blade and the second helical blade are hollow structure, and are provided with the spiral blade that pitch reduces from top to bottom gradually on its exterior edge face.Built-in centrifugal filtration structure described in the utility model is compared with single labyrinth structure of the prior art, not only simple in structure; And can significantly improve the oil-gas separation efficiency of motor, reduce Import and Export of Oil and Gas pressure drop, superior performance.
Description
Technical field
The utility model belongs to the technical field of auto-parts, and in particular, the utility model relates to a kind of built-in centrifugal filtration structure.
Background technique
In the prior art, the air chamber of non-supercharged engine cylinder head cover and PCV chamber can arrange more complicated labyrinth structure conventionally, and separation effect is low, thereby need to repeatedly optimize in later stage experimental stage, could satisfy regulatory requirement.In the prior art, the air chamber of the cylinder head cover of supercharged engine and PCV chamber are except the more complicated labyrinth structure of needs, also need external centrifugal oil-air separator to carry out secondary oil gas separation, external centrifugal oil-air separator is very high to arrangement requirement, and need extra 3 connecting pipelines of arranging, particularly return line is wherein owing to being subject to height difference restriction generally to grow especially (more than 350mm), in the middle of it, also need to install one-way valve, so not only complex structure but also unfavorable to the durability of complete machine.In addition also there is the risk of lubricating oil emulsion in external centrifugal oil-air separator.
Model utility content
The above-mentioned technical problem existing in order to solve prior art, the purpose of this utility model is to provide a kind of built-in centrifugal filtration structure.
To achieve these goals, the utility model provides following technological scheme:
A built-in centrifugal filtration structure, comprises cylinder head cover and oil baffle; It is characterized in that: in described cylinder head cover, be cast with air chamber and PCV chamber, at air chamber and the indoor helical blade mounting hole that is cast with respectively of PCV; On described oil baffle, be provided with corresponding with described helical blade mounting hole respectively helical blade and snap in hole; And helical blade mounting hole in air chamber and the helical blade on oil baffle snap in and be equipped with the second helical blade between hole, at the indoor helical blade mounting hole of PCV and the helical blade on oil baffle, snap in and between hole, be equipped with the first helical blade; Described the first helical blade and the second helical blade are hollow structure, and are provided with the spiral blade that pitch reduces from top to bottom gradually on its exterior edge face.
Built-in centrifugal filtration structure described in the utility model compared with prior art has following beneficial effect:
Built-in centrifugal filtration structure described in the utility model is compared with single labyrinth structure of the prior art, not only simple in structure; And can significantly improve the oil-gas separation efficiency of motor, reduce Import and Export of Oil and Gas pressure drop, superior performance.In addition, the oil baffle plate structure adopting in structure also can obtain greatly to be simplified, and that the helical blade part increasing can obtain in the type of similar discharge capacity is shared.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of built-in centrifugal filtration structure of the embodiment 1;
Fig. 2 is the structural representation of cylinder head cover in the built-in centrifugal filtration structure described in embodiment 1;
Fig. 3 is the structural representation of oil baffle in the built-in centrifugal filtration structure described in embodiment 1;
Fig. 4 is along the cross-sectional structure schematic diagram of A-A direction in Fig. 1;
Fig. 5 is the structural representation of the helical blade in the built-in centrifugal filtration structure described in embodiment 1.
Embodiment
Below with reference to embodiment and accompanying drawing, built-in centrifugal filtration structure described in the utility model is described in further detail.
Embodiment 1
As shown in accompanying drawing 1-3, the built-in centrifugal filtration structure described in the present embodiment, comprises cylinder head cover 1 and oil baffle 4; And in described cylinder head cover 1, be cast with air chamber 3 and PCV chamber 2, in air chamber 3 and PCV chamber 2, be respectively arranged with helical blade mounting hole 7; On described oil baffle 4, be equipped with corresponding with described helical blade mounting hole 7 respectively helical blade and snap in hole 8; And helical blade mounting hole 7 in air chamber 3 and the helical blade on oil baffle 4 snap in and be equipped with the second helical blade 6 between hole 8, the helical blade mounting hole 7 in PCV chamber 2 and the helical blade on oil baffle 4 snap in and between hole 8, are equipped with the first helical blade 5.The helical blade that helical blade first snaps in oil baffle 2 helical blades when assembling snaps in hole, then oil baffle is together put in cylinder head cover together with helical blade and gluing riveted joint sealing.Fig. 5 is the concrete structure of helical blade, and described helical blade is hollow structure, is provided with the spiral blade that pitch reduces from top to bottom gradually on its exterior edge face.Fig. 4 is the phantom of the helical blade of erection drawing, red arrow is in the figure the concrete path of oil gas: oil gas enters into the top of cylinder head cover casting hole through the hollow structure in the middle of helical blade, then along the gap between spiral blade gradually under screw, when spiral blade causes oil gas to be advanced downwards for the pitches structure reducing gradually from top to bottom, speed is accelerated gradually, the suffered centrifugal force of oil gas also strengthens gradually, and more tiny oil droplet is also just separated.The oil droplet of separating is fallen on oil baffle along the gap of hole wall, then the aperture on oil baffle is got back in crankcase.From helical blade passage high speed oil gas out, bump against the barricade between air chamber and PCV chamber, again can cutting out partial fluid oil, final oil gas after separated enters extraneous pipeline along labyrinth trend from cylinder head cover.
For the ordinary skill in the art; specific embodiment is just exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (1)
1. a built-in centrifugal filtration structure, comprises cylinder head cover and oil baffle; It is characterized in that: in described cylinder head cover, be cast with air chamber and PCV chamber, at air chamber and the indoor helical blade mounting hole that is cast with respectively of PCV; On described oil baffle, be provided with corresponding with described helical blade mounting hole respectively helical blade and snap in hole; And helical blade mounting hole in air chamber and the helical blade on oil baffle snap in and be equipped with the second helical blade between hole, at the indoor helical blade mounting hole of PCV and the helical blade on oil baffle, snap in and between hole, be equipped with the first helical blade; Described the first helical blade and the second helical blade are hollow structure, and are provided with the spiral blade that pitch reduces from top to bottom gradually on its exterior edge face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463985.7U CN204003001U (en) | 2014-08-18 | 2014-08-18 | A kind of built-in centrifugal filtration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463985.7U CN204003001U (en) | 2014-08-18 | 2014-08-18 | A kind of built-in centrifugal filtration structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003001U true CN204003001U (en) | 2014-12-10 |
Family
ID=52043019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420463985.7U Active CN204003001U (en) | 2014-08-18 | 2014-08-18 | A kind of built-in centrifugal filtration structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500259A (en) * | 2015-01-16 | 2015-04-08 | 阿尔特汽车技术股份有限公司 | Integrated screw type oil-gas separating mechanism of cylinder head cover |
| CN106545383A (en) * | 2016-12-08 | 2017-03-29 | 中国北方发动机研究所(天津) | A kind of crankcase ventilation hole gas and oil separating plant |
-
2014
- 2014-08-18 CN CN201420463985.7U patent/CN204003001U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500259A (en) * | 2015-01-16 | 2015-04-08 | 阿尔特汽车技术股份有限公司 | Integrated screw type oil-gas separating mechanism of cylinder head cover |
| CN106545383A (en) * | 2016-12-08 | 2017-03-29 | 中国北方发动机研究所(天津) | A kind of crankcase ventilation hole gas and oil separating plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: IAT AUTOMOBILE TECHNOLOGY Co.,Ltd. Person in charge of patents Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: IAT AUTOMOBILE TECHNOLOGY Co.,Ltd. Person in charge of patents Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: IAT AUTOMOBILE TECHNOLOGY Co.,Ltd. Person in charge of patents Document name: Notice of Termination of Patent Rights |