CN102146824A - Crankcase ventilation system for engine - Google Patents
Crankcase ventilation system for engine Download PDFInfo
- Publication number
- CN102146824A CN102146824A CN 201110109535 CN201110109535A CN102146824A CN 102146824 A CN102146824 A CN 102146824A CN 201110109535 CN201110109535 CN 201110109535 CN 201110109535 A CN201110109535 A CN 201110109535A CN 102146824 A CN102146824 A CN 102146824A
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- CN
- China
- Prior art keywords
- cover body
- valve chamber
- chamber cover
- ventilation system
- backup pad
- 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.)
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Abstract
The invention discloses a crankcase ventilation system for an engine. A valve cover body (3) is molded through injection; a labyrinth oil-gas separator (4), an integrated PCV (Pollution Control Valve) (5) and the valve cover body (3) are combined together by adopting a frictional welding way; the bottom of the valve cover body (3) is provided with an upper support plate (11) and a lower support plate (12); the upper support plate (11) and the valve cover body (3) form a sealed cavity; the upper support plate (11) and the lower support plate (12) form an oil return duct (13); an air wind shield (7) is arranged in the sealed cavity formed by the upper support plate (11) and the valve cover body (3); and an adsorbate is arranged on the air wind shield (7). The crankcase ventilation system disclosed by the invention is integrated in a valve cover, and thus, the pipeline connection is reduced, the configuration is optimized, the structure is compact, the operation is reliable, and mixed oil and gas in the engine can be effectively separated.
Description
Technical field
The present invention relates to ventilation system, be specifically related to a kind of engine crankshaft ventilation system.
Background technique
During engine operation, a part of inflammable mixture and waste gas are in piston ring leaks into crankcase.After leaking into gasoline vapor in the crankcase and condensing, will make lubricant oil thinning.Simultaneously, the high temperature of waste gas and the acidic materials in the waste gas and water vapor will corrode part, and lubricants performance is degenerated.In addition, because mixed gas and waste gas enter crankcase, the pressure in the crankcase is increased, temperature raises, and easily makes machine oil from outside seepages such as oil sealing, liners.For this reason, general motor car engine all has crankcase bleeder, so that the mixed gas and the waste gas that in time will enter in the crankcase are extracted out, makes live gas enter crankcase, forms convection current constantly.The crankcase ventilation mode generally has two kinds, and a kind of is natural ventilation, and another kind is a forced ventilation.Because the natural ventilation meeting pollutes air, so More and more factories all adopts forced ventilation.But the defective of forced ventilation system is that ventilation system is connected by several independent parts such as deaerator, PCV valve at present, is arranged in the periphery of motor, has increased the difficulty of arranging on the one hand, and the effect of Oil-gas Separation is not an ideal yet on the other hand.
Summary of the invention
The objective of the invention is to: a kind of engine crankshaft ventilation system is provided,
This ventilation system is integrated in the valve chamber cover, reduces the connection of pipeline, preferred arrangement, compact structure, reliable operation is saved cost, make motor at all rotating speeds and under loading mixed oil and gas can both effectively be separated.
Technical solution of the present invention is: comprise the valve chamber cover body, it is characterized in that: integrated installation ventilation system on the valve chamber cover body, described ventilation system is by the labyrinth type oil gas separating device, integrated PCV valve, the air barge board, adsorbate, upper backup pad and lower supporting plate are formed, the valve chamber cover body adopts the plastic materials molding and forming, establish on the valve chamber cover body and put the machine oil mouth and the ventilation mouth of pipe, put on the machine oil mouth and put engine oil port cover through the seal ring installation, the mode that adopts the friction welding welding is with the labyrinth type oil gas separating device, integrated PCV valve and valve chamber cover body are combined, bottom at the valve chamber cover body is installed dunnage and lower supporting plate from the top down successively, upper backup pad and valve chamber cover body form airtight cavity volume, form back oil road between upper backup pad and the lower supporting plate, establish spill port on the upper backup pad, the air barge board of mounting strap ventilated port is installed adsorbate on the air barge board in the airtight cavity volume of dunnage and the formation of valve chamber cover body.
Wherein, on the valve chamber cover body, establish the cap support muscle, between cap support muscle and air barge board, adsorbate is installed.
Enter the airtight cavity volume that forms by upper backup pad and valve chamber cover body when the gas mixture that contains organic oil, at first flow to adsorbate by the ventilated port on the air barge board, like this, oil droplet in the mixed gas just is adsorbed on the adsorbate, when oil droplet reaches certain degree, just enter the back oil road that forms by upper backup pad and lower supporting plate by spill port, finally flow back to.
The present invention has the following advantages: 1, cap support muscle and air barge board have guaranteed the secure fixation of adsorbate effectively; 2, adopt the mode of friction welding welding that the valve chamber cover body of labyrinth type oil gas separating device, integrated PCV valve and plastics is combined effectively, integrated layout, compact structure reduces connecting pipeline, reduce the cost of motor effectively, guaranteed oil gas separation; 3, adopt the labyrinth type oil gas separating device to guarantee that not only oil gas is filtered fully, and reliable performance.
Description of drawings
Fig. 1 is an exploded perspective view of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is that the B-B of Fig. 2 is to sectional view.
Fig. 5 is the partial enlarged drawing of Fig. 3.
Among the figure: 1 puts engine oil port cover, 2 seal rings, 3 valve chamber cover bodies, 4 labyrinth type oil gas separating devices, 5 integrated PCV valves, the 6 ventilation mouths of pipe, 7 air barge boards, 8 adsorbates, 9 cap support muscle, 10 spill ports, 11 upper backup pads, 12 lower supporting plates, 13 back oil roads, 14 ventilated ports.
Embodiment
Shown in Fig. 1-5, comprise valve chamber cover body 3, it is characterized in that: integrated installation ventilation system on valve chamber cover body 3, described ventilation system is by labyrinth type oil gas separating device 4, integrated PCV valve 5, air barge board 7, adsorbate 8, upper backup pad 11 and lower supporting plate 12 are formed, valve chamber cover body 3 adopts the plastic materials molding and forming, establish on the valve chamber cover body 3 and put the machine oil mouth and the ventilation mouth of pipe 6, put on the machine oil mouth and put engine oil port cover 1 through seal ring 2 installations, the mode that adopts the friction welding welding is with labyrinth type oil gas separating device 4, integrated PCV valve 5 is combined with valve chamber cover body 3, bottom at valve chamber cover body 3 is installed dunnage 11 and lower supporting plate 12 from the top down successively, upper backup pad 11 forms airtight cavity volume with valve chamber cover body 3, form back oil road 13 between upper backup pad 11 and the lower supporting plate 12, establish spill port 10 on the upper backup pad 11, the air barge board 7 of mounting strap ventilated port 14 is installed adsorbate 8 on the air barge board 7 in the airtight cavity volume that upper backup pad 11 and valve chamber cover body 3 form.
Wherein, on valve chamber cover body 3, establish cap support muscle 9, adsorbate 8 is installed between cap support muscle 9 and air barge board 7.
Enter the airtight cavity volume that forms by upper backup pad 11 and valve chamber cover body 3 when the gas mixture that contains organic oil, at first flow to adsorbate 8 by the ventilated port on the air barge board 7 14, like this, oil droplet in the mixed gas just is adsorbed on the adsorbate 8, when oil droplet reaches certain degree, just enter the back oil road 13 that forms by upper backup pad 11 and lower supporting plate 12 by spill port 10, finally flow back to.
Claims (2)
1. engine crankshaft ventilation system, comprise valve chamber cover body (3), it is characterized in that: go up integrated installation ventilation system at valve chamber cover body (3), described ventilation system is by labyrinth type oil gas separating device (4), integrated PCV valve (5), air barge board (7), adsorbate (8), upper backup pad (11) and lower supporting plate (12) are formed, valve chamber cover body (3) adopts the plastic materials molding and forming, establish on the valve chamber cover body (3) and put the machine oil mouth and the ventilation mouth of pipe (6), put on the machine oil mouth and put engine oil port cover (1) through seal ring (2) installation, the mode that adopts the friction welding welding is with labyrinth type oil gas separating device (4), integrated PCV valve (5) is combined with valve chamber cover body (3), install dunnage (11) and lower supporting plate (12) from the top down successively in the bottom of valve chamber cover body (3), upper backup pad (11) forms airtight cavity volume with valve chamber cover body (3), form back oil road (13) between upper backup pad (11) and the lower supporting plate (12), establish spill port (10) on the upper backup pad (11), the air barge board (7) of mounting strap ventilated port (14) in the airtight cavity volume that upper backup pad (11) and valve chamber cover body (3) form, air barge board (7) are gone up adsorbate (8) are installed.
2. engine crankshaft ventilation system according to claim 1 is characterized in that: wherein, establish cap support muscle (9) on valve chamber cover body (3), between cap support muscle (9) and air barge board (7) adsorbate (8) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110109535 CN102146824A (en) | 2011-04-29 | 2011-04-29 | Crankcase ventilation system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110109535 CN102146824A (en) | 2011-04-29 | 2011-04-29 | Crankcase ventilation system for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102146824A true CN102146824A (en) | 2011-08-10 |
Family
ID=44421268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110109535 Pending CN102146824A (en) | 2011-04-29 | 2011-04-29 | Crankcase ventilation system for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102146824A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989713A (en) * | 2017-12-27 | 2018-05-04 | 天津惠德汽车进气系统股份有限公司 | A kind of engine valve cover |
| CN114412654A (en) * | 2022-01-26 | 2022-04-29 | 奇瑞汽车股份有限公司 | Integrated engine valve chamber cover cap and car of design |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546637Y (en) * | 2002-06-12 | 2003-04-23 | 吴树香 | Built-in breather for single-cylinder diesel engine |
| CN101182794A (en) * | 2007-12-04 | 2008-05-21 | 奇瑞汽车有限公司 | Crankcase ventilation system |
| CN101435384A (en) * | 2008-12-16 | 2009-05-20 | 奇瑞汽车股份有限公司 | Valve chamber cover cap |
| CN201474750U (en) * | 2009-06-08 | 2010-05-19 | 奇瑞汽车股份有限公司 | Novel crankcase ventilation system |
-
2011
- 2011-04-29 CN CN 201110109535 patent/CN102146824A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546637Y (en) * | 2002-06-12 | 2003-04-23 | 吴树香 | Built-in breather for single-cylinder diesel engine |
| CN101182794A (en) * | 2007-12-04 | 2008-05-21 | 奇瑞汽车有限公司 | Crankcase ventilation system |
| CN101435384A (en) * | 2008-12-16 | 2009-05-20 | 奇瑞汽车股份有限公司 | Valve chamber cover cap |
| CN201474750U (en) * | 2009-06-08 | 2010-05-19 | 奇瑞汽车股份有限公司 | Novel crankcase ventilation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989713A (en) * | 2017-12-27 | 2018-05-04 | 天津惠德汽车进气系统股份有限公司 | A kind of engine valve cover |
| CN114412654A (en) * | 2022-01-26 | 2022-04-29 | 奇瑞汽车股份有限公司 | Integrated engine valve chamber cover cap and car of design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110810 |