CN205277533U - Ventilation system for automobile crankcase - Google Patents
Ventilation system for automobile crankcase Download PDFInfo
- Publication number
- CN205277533U CN205277533U CN201520847023.6U CN201520847023U CN205277533U CN 205277533 U CN205277533 U CN 205277533U CN 201520847023 U CN201520847023 U CN 201520847023U CN 205277533 U CN205277533 U CN 205277533U
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- China
- Prior art keywords
- tonifying
- pipe
- gas separator
- oil
- ventilation system
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- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a ventilation system for automobile crankcase arranges that the space is big, implements the problem that the degree of difficulty is big, the cost is higher for the solution, include the valve mechanism cover who communicates with the crankcase, the air intake manifold who is located valve mechanism cover one side, characterized by is equipped with external oil and gas separator on valve mechanism cover, and oil and gas separator passes through the ventilation pipe and is connected with air intake manifold, and oil and gas separator near point position is equipped with the blowdown pipe assembly and inserts the mouth, hose connection after the other end of blowdown pipe assembly is strained with the sky of air intake manifold outer end, oil and gas separator includes diaphragm formula PCV valve, be equipped with the check valve in the blowdown pipe assembly. Stop the inside gaseous anti - channelling of valve mechanism cover to strain the back hose to the sky, effectively avoided frozen, machine oil emulsification phenomenon, overall structure arranges that the flexibility is big, and the space requirement is low, easy implementation, and the cost is lower.
Description
Technical field
The utility model relates to automobile technical field, especially a kind of automobile crane box ventilation system.
Background technology
The crankcase ventilation system of engine a kind of imports in inlet system by remaining in inner waste gas in engine combustion process, fresh air is imported to crankcase simultaneously and carry out gaseous interchange, thus again carry out in-cylinder combustion, prevent imperfect combustion waste gas from the machine oil in crankcase is gone bad, it is a kind of structure improving combustion and emission. Under some extreme environment, operating mode, one is because cylinder cover hood (connection crankcase) internal pressure is greater than tube internal pressure after air filter, cylinder cover hood (connection crankcase) internal gas flows to flexible pipe after air filter, just has that water vapor freezes, lubricating oil emulsion phenomenon; Two be because of adopt needle valve or some respond Pcv valve slowly, vent line flow velocity is low, also have water vapor freeze, lubricating oil emulsion.
The icing phenomenon of crankcase ventilation system likely causes line clogging, thus causes crankcase ventilation system internal pressure excessive, damages sealing member and causes the problems such as leakage, and lubricating oil emulsion can affect movement parts lubrication, easily causes seize, La Wa, damages engine. Existing technical scheme is generally: designs resistance heating device (such as antifreeze box) around vent-pipe, tonifying Qi pipe, increase heat insulation sheath or design HVAC water pipe etc.
If patent publication No. is that disclosed in CN202851107U the utility model, automobile crane case ventilation ice protection system comprises crankcase bleed pipe and cleaned air conduit, antifreeze box it is provided with between described crankcase bleed pipe and cleaned air conduit, the entrance of described antifreeze box is connected with crankcase bleed pipe, and the described outlet of antifreeze box is connected with the pipe side wall of cleaned air conduit. The utility model by forcing a design antifreeze box between crankcase bleed pipe and cleaned air conduit at engine, thus realize being stored in this antifreeze box by water of condensation, and then play the effect preventing from forcing crankcase ventilation to be frozen, and the one-piece construction of native system is more simple, with low cost.
CN201826925U Zhejiang Geely Automobile Research Institute Co., Ltd, the utility model provides a kind of automobile crane box ventilation system, belongs to automobile technical field. It solve condensation blocking, the problem that even engine cannot start of easily producing in existing engine charge system. This automobile crane box ventilation system comprises butterfly and intake manifold, by ventpipe, air filter is connected with butterfly, intake manifold and crankcase, the check valve for discharging waste gas in crankcase also it is provided with between crankcase and intake manifold, crankcase be connected between air filter and the ventpipe of butterfly to be provided with the Unidirectional solenoid valve for supplementing air pressure to crankcase inside, also being provided with the pressure transmitter for measuring crankcase internal pressure on crankcase, pressure transmitter and Unidirectional solenoid valve are all connected with an electronically controlled unit. This automobile crane box ventilation system can prevent the air-fuel mixture circulation of vital energy in the wrong direction in crankcase from flowing to into sinuflo tube and condense, and causes butterfly not open, and air inlet is smooth, affects vehicle launch.
Summary of the invention
The purpose of this utility model is to solve prior art in the icing phenomenon treatment unit of crankcase ventilation system, electric, mechanical layout are required higher, arrangement space is also very big, implement difficulty big, and the problem that cost is higher, there is provided that one is avoided freezing, lubricating oil emulsion phenomenon, take that space is little, the automobile crane box ventilation system of low cost.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of automobile crane box ventilation system, the intake manifold comprise the cylinder cover hood being connected with crankcase, being positioned at cylinder cover hood side, it is characterized in that being provided with external placed type oil-gas separator in described cylinder cover hood, oil-gas separator is connected with intake manifold by vent-pipe, oil-gas separator near point position is provided with tonifying Qi pipe assembly access port, hose connection after the other end of tonifying Qi pipe assembly and the air filter of intake manifold outer end; Described oil-gas separator comprises diaphragm type PCV valve; Tonifying Qi pipe assembly is provided with check valve. The technical program is provided with diaphragm type PCV valve, and its response is very fast, operating frequency height, and in pipeline, gas velocity is fast, and pipeline gas water vapor ratio is low, effectively prevent icing, lubricating oil emulsion problem. Internal diameter of pipe joint in tonifying Qi pipe assembly, length are carried out stdn size design, damages to control the flow-pressure of tonifying Qi pipe assembly, control diaphragm type PCV valve operating frequency so that it is work in stable range simultaneously, avoid producing abnormal sound. Check valve flow-pressure damage is less than tube stub position, and tonifying Qi pipe assembly is controlled primarily of tube stub. Check valve stops the gas reverse direction flow in cylinder cover hood to flexible pipe after air filter, avoids freezing, lubricating oil emulsion. By such scheme, thus easily icing, lubricating oil emulsion, the problem that even engine cannot start, and space require little, advantage of lower cost to solve existing engine crankshaft ventilation system.
As preferably, described tonifying Qi pipe assembly also comprises tube stub, the tonifying Qi pipe one being connected with tube stub one end, tonifying Qi pipe one connects one end of check valve, and the other end of check valve connects tonifying Qi pipe two.
As preferably, described { check valve flow subtracts the difference that pressure is damaged } < { tube stub flow subtracts the difference that pressure is damaged }. Namely check valve flow subtracts the difference that pressure is damaged the difference obtained and is less than tube stub flow and subtracts pressure damage and obtain.
As preferably, the airintake direction of described check valve points to tonifying Qi pipe one by tonifying Qi pipe two.
As preferably, in described oil-gas separator, the diaphragm thickness on diaphragm type PCV valve must meet Pcv valve high-frequency work.
As preferably, described tonifying Qi pipe assembly access port or design are in the rear end of cylinder cover hood.
The beneficial effects of the utility model are: check valve prevents cylinder cover hood internal gas anti-channeling to flow to flexible pipe after air filter, the diaphragm type PCV valve of response fast, in operating frequency height, pipeline, gas velocity is fast, pipeline gas water vapor ratio is low, effectively prevent icing, lubricating oil emulsion phenomenon; While meeting air compensation requirement, avoid the generation of Pcv valve operating noise; Integral arrangement handiness is big, and space requires low, easily implements, and cost is lower.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of tonifying Qi pipe assembly structural representation of the present utility model.
In figure: 1. oil-gas separator, 2. vent-pipe, 3. tonifying Qi pipe assembly, 31. tube stubs, 32. tonifying Qi pipe one, 33. check valves, 34. tonifying Qi pipe two, 4. cylinder cover hood, 5. flexible pipe after air filter, 6. intake manifold.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
A kind of automobile crane box ventilation system of the present embodiment, as shown in Figure 1, comprise the cylinder cover hood 4 being connected with crankcase, it is positioned at the intake manifold 6 of cylinder cover hood 4 side, in cylinder cover hood 4, another side of relative intake manifold 6 is provided with external placed type oil-gas separator 1, oil-gas separator 1 comprises diaphragm type PCV valve, and the diaphragm thickness that diaphragm type PCV valve wherein is equipped with to be met the requirement of Pcv valve high-frequency work.
Oil-gas separator 1 is connected with intake manifold 6 by vent-pipe 2. The access port of tonifying Qi pipe assembly 3 is set at the near point position of oil-gas separator 1, this access port is tube stub 31, what tonifying Qi pipe assembly 3 was connected with tube stub 31 one end is tonifying Qi pipe 1, as shown in Figure 2, tonifying Qi pipe 1 connects one end of check valve 33, the other end of check valve is connected with tonifying Qi pipe 2 34, and the airintake direction of check valve 33 points to tonifying Qi pipe 1 from tonifying Qi pipe 2 34. Tonifying Qi pipe 2 34 in tonifying Qi pipe assembly 3 is connected with flexible pipe 5 after the air filter of intake manifold 6 outer end. Tube stub 31 flow indicator is set by the present embodiment, and its internal diameter is 3mm, length is 34mm, and check valve 33 flow subtracts the difference that the difference that pressure damages is less than tube stub 31 flow and subtracts pressure and damage.
For another kind of embodiment of tube stub 31 access position of tonifying Qi pipe assembly 3, namely tube stub 31 is arranged on the rear end of cylinder cover hood 4.
During work, by responding diaphragm type PCV valve fast, that operating frequency height, gas velocity fast, gas water vapor ratio is low, and check valve 33 stops in cylinder cover hood 4 gas reverse direction flow to flexible pipe 5 after air filter, effectively solve freeze, lubricating oil emulsion problem.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any structure after simple transformation of the present utility model is all belonged to protection domain of the present utility model.
Claims (6)
1. an automobile crane box ventilation system, the intake manifold (6) comprise the cylinder cover hood (4) being connected with crankcase, being positioned at cylinder cover hood side, it is characterized in that in described cylinder cover hood, be provided with external placed type oil-gas separator (1), oil-gas separator is connected with intake manifold by vent-pipe (2), oil-gas separator near point position is provided with tonifying Qi pipe assembly (3) access port, and the other end of tonifying Qi pipe assembly is connected with flexible pipe (5) after the air filter of intake manifold outer end; Described oil-gas separator comprises diaphragm type PCV valve; Tonifying Qi pipe assembly (3) is provided with check valve (33).
2. a kind of automobile crane box ventilation system according to claim 1, it is characterized in that described tonifying Qi pipe assembly (3) also comprises tube stub (31), the tonifying Qi pipe one (32) being connected with tube stub one end, tonifying Qi pipe one connects one end of check valve (33), and the other end of check valve connects tonifying Qi pipe two (34).
3. a kind of automobile crane box ventilation system according to claim 2, it is characterised in that described { check valve (33) flow subtracts the difference that pressure is damaged } < { tube stub (31) flow subtracts the difference that pressure is damaged }.
4. a kind of automobile crane box ventilation system according to Claims 2 or 3, it is characterised in that the airintake direction of described check valve (33) points to tonifying Qi pipe one (32) by tonifying Qi pipe two (34).
5. a kind of automobile crane box ventilation system according to claim 1 or 2 or 3, it is characterised in that in described oil-gas separator (1), the diaphragm thickness on diaphragm type PCV valve must meet Pcv valve high-frequency work.
6. a kind of automobile crane box ventilation system according to claim 1 or 2 or 3, it is characterised in that described tonifying Qi pipe assembly (3) access port or design are in the rear end of cylinder cover hood (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847023.6U CN205277533U (en) | 2015-10-29 | 2015-10-29 | Ventilation system for automobile crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847023.6U CN205277533U (en) | 2015-10-29 | 2015-10-29 | Ventilation system for automobile crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277533U true CN205277533U (en) | 2016-06-01 |
Family
ID=56062115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847023.6U Expired - Fee Related CN205277533U (en) | 2015-10-29 | 2015-10-29 | Ventilation system for automobile crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488415A (en) * | 2018-12-30 | 2019-03-19 | 江西腾勒动力有限公司 | A kind of automobile Pcv valve sebific duct adapter |
-
2015
- 2015-10-29 CN CN201520847023.6U patent/CN205277533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488415A (en) * | 2018-12-30 | 2019-03-19 | 江西腾勒动力有限公司 | A kind of automobile Pcv valve sebific duct adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160811 Address after: 315800 Zhejiang city of Ningbo province Beilun xinqie street Mt. Hengshan Road No. 1528 Patentee after: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd. Address before: 315336 Binhai New Area, Hangzhou Bay, Zhejiang, No. two, No. 818 Road, No. Patentee before: NINGBO GEELY ROYAL ENGINE COMPONENTS Co.,Ltd. Patentee before: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd. Patentee before: JI'NAN GEELY AUTO PARTS Co.,Ltd. Patentee before: HUNAN LUOYOU ENGINE PARTS Co.,Ltd. Patentee before: NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG GEELY POWER ASSEMBLY Co.,Ltd. Address before: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |