CN201148891Y - V type engine crankcase ventilating system - Google Patents
V type engine crankcase ventilating system Download PDFInfo
- Publication number
- CN201148891Y CN201148891Y CNU2007201297701U CN200720129770U CN201148891Y CN 201148891 Y CN201148891 Y CN 201148891Y CN U2007201297701 U CNU2007201297701 U CN U2007201297701U CN 200720129770 U CN200720129770 U CN 200720129770U CN 201148891 Y CN201148891 Y CN 201148891Y
- Authority
- CN
- China
- Prior art keywords
- crankcase
- cylinder body
- type engine
- waste gas
- ventilation system
- 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
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- 239000002912 waste gas Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 16
- 239000010721 machine oil Substances 0.000 description 8
- 230000008016 vaporization Effects 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a ventilation system, in particular to a ventilation system of the crankcase of a V-type engine. The ventilation system comprises a cylinder body, a cylinder cover, a crankcase, a valve chamber cover, a ventilation hose, a PCV valve, an intake manifold, a waste gas passage and an oil passage, wherein the waste gas passage and the oil passage are mutually independent passages extending out of the crankcase, the waste gas passage is positioned on the inner side of a V-angle, the oil passage is positioned on the outer side of the V-angle, the waste gas passage is composed of a cylinder body ventilation hole and a cylinder cover ventilation hole, the cylinder body ventilation hole is vertically communicated with the cylinder cover ventilation hole, the oil gas separation effect of the ventilation system of the crankcase can be greatly improved during the process of long-term use, the pressure loss during the process of the waste gas of the crankcase to the valve chamber can be greatly reduced, and the possibility of positive pressure of the crankcase of the V-type engine is lower.
Description
Technical field
The utility model relates to a kind of ventilation system, especially relates to a kind of V-type engine crankcase ventilation system.
Background technique
At present the crankcase ventilation system of V-type engine generally all adopts ventilation and drainback passage shared, this ventilation system makes that waste gas upwards flows in same passage, machine oil flows downward, thereby cause the machine oil vaporization phenomenon more serious, and the resistance that upwards flows of waste gas is bigger, because oil gas separation is poor, the possibility that malleation appears in crankcase also increases thereupon again.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of V-type engine crankcase ventilation system at the serious problem of machine oil vaporization phenomenon that prior art is brought, to reach the purpose that can effectively avoid oil gas to mix in the process of using.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of V-type engine crankcase ventilation system, comprise cylinder body, cylinder cap, crankcase, valve chamber cover, vent hose, the PCV valve, intake manifold, exhaust steam passage and oil passageway, exhaust steam passage and oil passageway are the separate passages that stretches out from crankcase, exhaust steam passage is positioned at the inboard at V angle, oil passageway is positioned at the outside at V angle, wherein, exhaust steam passage is made up of the cylinder cap vent hole that is positioned at the cylinder body vent hole on the cylinder body and be positioned on the cylinder cap, cylinder body vent hole and cylinder cap vent hole are interconnected up and down, described oil passageway is made up of the cylinder cap spill port that is positioned at the cylinder body spill port on the cylinder body and be positioned on the cylinder cap, and cylinder body spill port and cylinder cap spill port are interconnected up and down.
Because this V-type engine crankcase ventilation system has above-mentioned special structure, so in long-term using process, the oil gas separation of crankcase ventilation system is improved greatly, the pressure loss reduces greatly in the process of crankcase waste gas from the crankcase to the valve cage, and it is littler that the possibility that makes the V-type engine crankcase malleation occur becomes.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Shown in the figure, 1, cylinder body; 2, cylinder cap; 3, valve chamber cover; 4, vent hose; 5, PCV valve; 6, intake manifold; 7, cylinder body spill port; 8, cylinder body vent hole; 9, cylinder cap spill port; 10, cylinder cap vent hole.
Embodiment
Fig. 1 is a kind of structural representation of V-type engine crankcase ventilation system.This V-type engine crankcase ventilation system, comprise cylinder body 1, cylinder cap 2, crankcase, valve chamber cover 3, vent hose 4, PCV valve 5, intake manifold 6, exhaust steam passage and oil passageway, wherein, exhaust steam passage and oil passageway separate substantially, be that exhaust steam passage and oil passageway are the separate passages that stretches out from crankcase, and exhaust steam passage is positioned at the inboard at V angle, on the cylinder body 1 on both sides and cylinder cap 2, respectively design two vent holes that are communicated with up and down, promptly be positioned at cylinder body vent hole 8 and the cylinder cap vent hole 10 that is positioned on the cylinder cap 2 on the cylinder body 1, cylinder body vent hole 8 and cylinder cap vent hole 10 are interconnected up and down, thereby make most of waste gas from the crankcase to the valve chamber cover in 3; Oil passageway is positioned at the outside at V angle, on the cylinder body 1 on both sides and cylinder cap 2, respectively design two spill ports that are communicated with up and down, promptly be positioned at cylinder body spill port 7 and the cylinder cap spill port 9 that is positioned on the cylinder cap 2 on the cylinder body 1, cylinder body spill port 7 and cylinder cap spill port 9 are interconnected up and down, and this structure makes machine oil get back to oil sump from valve chamber cover 3.
Because the V angle of V-type engine makes cylinder cap 2 that certain angle with respect to the horizontal plane be arranged, make the spill port position in the outside, V angle lower than inboard vent hole, machine oil in the valve cage is back to oil sump through the outside, V angle spill port under the effect of gravity, promptly get back to crankcase, enter oil sump from cylinder cap spill port 7 and cylinder body spill port; And the vent hole of inboard, V angle does not have engine oil flow, in crankcase waste gas from crankcase to the valve cage process of flowing, because organic oil flows from top to bottom in the spill port, exhaust-gas flow resistance in the spill port is very big, and the resistance in the vent hole of inboard, V angle is very little, therefore the waste gas in most of crankcase enters valve cage by the vent hole of the little inboard, V angle of circulating resistance from crankcase, be that most of waste gas enters valve cage from crankcase by cylinder body vent hole and cylinder cap vent hole 8, enter intake manifold 4 by vent hose 5 through PCV valve 6 again.
Crankcase waste gas separates from the passage that valve cage flows back to crankcase substantially from passage and the machine oil that crankcase enters valve cage, improved greatly because crankcase waste gas and machine oil are to flow in a passage, and the serious phenomenon of machine oil vaporization that causes on the contrary mutually of flow direction.The oil gas separation of crankcase ventilation system is improved greatly, and the pressure loss reduces greatly in the process of crankcase waste gas from the crankcase to the valve cage, and it is littler that the possibility that makes the V-type engine crankcase malleation occur becomes.
Certainly, the disclosed ventilation system of the utility model is not limited to be applied on the V-type engine, can also be applied in the motor of other kinds, and such conversion all drops within the protection domain of the present utility model.
Claims (3)
1. V-type engine crankcase ventilation system, comprise cylinder body, cylinder cap, crankcase, exhaust steam passage and oil passageway, it is characterized in that: described exhaust steam passage and oil passageway are the separate passages that stretches out from crankcase, the inboard at motor V angle, exhaust steam passage position, oil passageway is positioned at the outside at motor V angle.
2. according to the described a kind of V-type engine crankcase ventilation system of claim 1, it is characterized in that: described exhaust steam passage is made up of the cylinder cap vent hole (10) that is positioned at the cylinder body vent hole (8) on the cylinder body (1) and be positioned on the cylinder cap (2), and described oil passageway is made up of the cylinder cap spill port (9) that is positioned at the cylinder body spill port (7) on the cylinder body (1) and be positioned on the cylinder cap (2).
3. according to the described a kind of V-type engine crankcase ventilation system of claim 2, it is characterized in that: described cylinder body vent hole (8) and cylinder cap vent hole (10) are interconnected up and down, and described cylinder body spill port (7) and cylinder cap spill port (9) are interconnected up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201297701U CN201148891Y (en) | 2007-12-28 | 2007-12-28 | V type engine crankcase ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201297701U CN201148891Y (en) | 2007-12-28 | 2007-12-28 | V type engine crankcase ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148891Y true CN201148891Y (en) | 2008-11-12 |
Family
ID=40116658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201297701U Expired - Fee Related CN201148891Y (en) | 2007-12-28 | 2007-12-28 | V type engine crankcase ventilating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148891Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672381B (en) * | 2009-10-14 | 2011-01-05 | 奇瑞汽车股份有限公司 | Diaphragm type PCV valve |
| CN103557042A (en) * | 2013-10-30 | 2014-02-05 | 浙江吉利控股集团有限公司 | Gas-liquid separating device and crankcase ventilating structure |
| CN110748396A (en) * | 2018-07-23 | 2020-02-04 | 本田技研工业株式会社 | Ventilator structure of engine |
-
2007
- 2007-12-28 CN CNU2007201297701U patent/CN201148891Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672381B (en) * | 2009-10-14 | 2011-01-05 | 奇瑞汽车股份有限公司 | Diaphragm type PCV valve |
| CN103557042A (en) * | 2013-10-30 | 2014-02-05 | 浙江吉利控股集团有限公司 | Gas-liquid separating device and crankcase ventilating structure |
| CN103557042B (en) * | 2013-10-30 | 2016-01-27 | 浙江吉利控股集团有限公司 | Gas-liquid separation device and crankcase ventilation structure |
| CN110748396A (en) * | 2018-07-23 | 2020-02-04 | 本田技研工业株式会社 | Ventilator structure of engine |
| US10968796B2 (en) | 2018-07-23 | 2021-04-06 | Honda Motor Co., Ltd. | Breather structure of engine |
| CN110748396B (en) * | 2018-07-23 | 2021-09-07 | 本田技研工业株式会社 | Ventilator structure of engine |
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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: 20081112 Termination date: 20121228 |