CN202851107U - Ventilation anti-icing system of automobile crankcase - Google Patents
Ventilation anti-icing system of automobile crankcase Download PDFInfo
- Publication number
- CN202851107U CN202851107U CN 201220313615 CN201220313615U CN202851107U CN 202851107 U CN202851107 U CN 202851107U CN 201220313615 CN201220313615 CN 201220313615 CN 201220313615 U CN201220313615 U CN 201220313615U CN 202851107 U CN202851107 U CN 202851107U
- Authority
- CN
- China
- Prior art keywords
- crankcase
- antifreeze box
- box
- crankcase ventilation
- entrance
- 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 - Lifetime
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 33
- 230000002528 anti-freeze Effects 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000007710 freezing Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a ventilation anti-icing system of an automobile crankcase which comprises a crankcase ventilation pipe and a clean air pipe. An anti-freezing box is arranged between the crankcase ventilation pipe and the clean air pipe. An inlet of the anti-freezing box is communicated with the crankcase ventilation pipe. An outlet of the anti-freezing box is communicated with the side wall of a pipeline of the clean air pipe. According to the ventilation anti-icing system of the automobile crankcase, the anti-freezing box is designed to be arranged between the crankcase ventilation pipe and the clean air pipe, and therefore storage of condensate water in the anti-freezing box is achieved, and a role that a crankcase is prevented from being forced to be vented and frozen is played. In addition, the ventilation anti-icing system of the automobile crankcase is simple in whole structure and low in cost.
Description
Technical field
The utility model relates to a kind of ventilation ice protection system for vehicle crankcase.
Background technique
The positive drive type crankcase ventilation system claims again the PCV system, is to prevent that crank case gases is discharged into the purification plant in the atmosphere.Because in the course of the work, crankcase can form the gas with certain air pressure, pollutes the environment if this part gas directly is discharged in the atmosphere, so designed the positive drive type crankcase ventilation system, in order to gas is introduced suction tude by this system, and then in cylinder, burns.
When engine operation, have part inflammable mixture and products of combustion and scurried in the crankcase by cylinder through piston ring.When motor moves at low temperatures, the liquid fuel crankcase that bleeds also may be arranged, these materials such as untimely removing, it is rotten and parts are corroded or corrosion to will speed up machine oil.And, enter in the gas in the crankcase and can contain hydrocarbon (HC) and other pollutants, so also do not allow this gas discharging in atmosphere.Therefore, the effect of positive drive type crankcase ventilation system also is to prevent with the gas discharging in the crankcase in atmosphere.
Common positive drive type crankcase ventilation system comprises cleaned air conduit stream and is attached thereto logical crankcase bleed pipe.Under the general operating mode, dry air flows to crankcase bleed pipe from cleaned air conduit, and and then the valve chamber cover of flow direction engine.Under some extreme operating condition, because of cyclinder head cover and crankcase bleed pipe internal pressure greater than the clean air overpressure, when gasoline, machine oil and water vapor flow to cleaned air conduit by crankcase bleed pipe (this situation is called as the oil gas anti-channeling), just have water recovery and freeze.This icing phenomenon of crankcase ventilation system might cause pipeline blockage, thereby causes the crankcase ventilation system internal pressure excessive, damages Sealing, thereby causes the problem such as piston gas blowby leakage.And the crankcase ventilation system gas mixture freezes near throttle body, can cause closure normally to open and to work.
In order to address these problems, traditional design proposal has: forcing crankcase ventilation pipeline and cleaned air conduit jointing design resistance heating device, perhaps increase heat insulation sheath 1.; 2. at throttle body place design HVAC water pipe.But these device structures are complicated, owing to need heating equipment, and therefore, requirement electric, mechanical layout is all relatively high, and the requirement of installing space is also very large, will take into full account the restriction of arrangement of parts on every side when design, and cost is higher.
The model utility content
For solve existing crankcase ventilation system cost high, the defective such as be difficult to carry out, the utility model provides a kind of vehicle crankcase ventilation ice protection system.
Vehicle crankcase ventilation ice protection system of the present utility model comprises crankcase bleed pipe and cleaned air conduit, between described crankcase bleed pipe and cleaned air conduit, be provided with antifreeze box, the entrance of described antifreeze box is communicated with crankcase bleed pipe, and the outlet of described antifreeze box is connected with the pipe side wall of cleaned air conduit.
Preferably, described antifreeze box is provided with one-way valve, and when described one-way valve was in open mode, described antifreeze box was communicated with outside.
Preferably, described one-way valve is positioned at the bottom of antifreeze box.
Preferably, the entrance height of described antifreeze box is lower than open height.
Preferably, the entrance of described antifreeze box is than the low 1～3mm of outlet.
Preferably, the angle between the center line of the entrance and exit of described antifreeze box is between 90 degree are spent to 270.
The utility model is by forcing antifreeze box of design between crankcase bleed pipe and the cleaned air conduit at motor, thereby realize condensed water is stored in this antifreeze box, thereby play the effect that prevents from forcing crankcase ventilation to freeze, and the overall structure of native system is simpler, with low cost.
In the preferred technological scheme of the utility model, at antifreeze box one-way valve is installed, this so that the liquid in the antifreeze box can discharge more easily.
Description of drawings
Fig. 1 is the stereogram of a kind of preferred implementation of vehicle crankcase ventilation ice protection system of the present utility model;
Fig. 2 is that Fig. 1 is along the sectional view of A-A direction;
Fig. 3 is the side view of Fig. 1;
Fig. 4 is that Fig. 3 is along the sectional view of C-C direction.
Embodiment
Below in conjunction with accompanying drawing the preferred implementation that the utility model provides is done further detailed description:
Fig. 1-4 is depicted as a kind of preferred implementation of the utility model vehicle crankcase ventilation ice protection system, and this system comprises crankcase bleed pipe 1 and cleaned air conduit 2, is provided with antifreeze box 3 between crankcase bleed pipe 1 and cleaned air conduit 2.Antifreeze box 3 has entrance and exit, and the entrance of antifreeze box 3 is communicated with crankcase bleed pipe, and the outlet of antifreeze box 3 is connected with the pipe side wall of cleaned air conduit.
Crankcase bleed pipe 1 is used for gas blowby suction suction tude under the cylinder in the crankcase is sent into cylinder combustion.One end of crankcase bleed pipe 1 is connected with the entrance of antifreeze box 3, and the other end is connected with crankcase.
Gas after cleaned air conduit 2 is used for processing is delivered to suction tude, in order to burn in cylinder.Cleaned air conduit 2 one ends are connected with engine air inlet tube, and the other end is connected with atmosphere by filtrating equipment.The sidewall of cleaned air conduit 2 has interface, be used for being connected with antifreeze box 3, cleaned air conduit 2 be connected box 3 and can connect by flange, also can connect by other means.Cleaned air conduit 2 can adopt various suitable air inlet pipeline types, and its size can be determined according to concrete application.
In oil gas anti-channeling situation, because the engine crankshaft ventilation system gas pressure is greater than gas pressure in the cleaned air conduit, part high-temperature oil gas mixture will enter antifreeze box 3 by crankcase bleed pipe, because antifreeze box 3 surface temperatures are lower with respect to crankcase bleed pipe, therefore gas mixture condenses into liquid or solid easily in antifreeze box 3, thereby can not be blocked in the crankcase bleed pipe.
Preferably, antifreeze box 3 is provided with one-way valve 4.One-way valve 4 has been realized the unilaterally connected in antifreeze box 3 and the external world, and liquid in the antifreeze box 3 can be discharged.When the air pressure in the antifreeze box 3 during less than preset air pressure, one-way valve 4 closures realize that antifreeze box 3 is with outside isolated; When the air pressure in the antifreeze box 3 during more than or equal to preset air pressure, one-way valve 4 is opened, and realizes that antifreeze box 3 is communicated with outside.When described one-way valve was in open mode, described antifreeze box was communicated with outside, and condensed water or other condensations are discharged.
One-way valve 4 can comprise diaphragm, valve gap and valve body.Valve gap is connected with antifreeze box with valve body, and diaphragm is between valve gap and valve body.When engine operation, most of operating mode lower crankcase all is in negative pressure, and this moment, diaphragm was closed, prevents from not entering in the crankcase through the filtered air suck-back, and crankcase ventilation system is in normal working.When high rotating speed low-load and slow-speed of revolution high load operating mode, crankcase is in malleation, and diaphragm is opened, and condensed water is discharged.When motor did not turn round, because self gravitation, diaphragm was in open mode, helped to drain condensed water, had realized self-draining purpose.One-way valve 4 is preferably located in the bottom of antifreeze box 3, because one-way valve 4 is in antifreeze box extreme lower position, thereby is conducive to the condensed water in the antifreeze box 3 is drained.
The entrance of antifreeze box 3 is communicated with crankcase bleed pipe 1, and the outlet of antifreeze box is connected with the pipe side wall of cleaned air conduit 2.Preferably, in order to prevent flow direction cleaned air conduit 2, the entrance height of antifreeze box 3 is lower than open height.Preferably, the entrance height of antifreeze box is than the low 1～3mm of outlet, and therefore, even when liquid or solid has been full of whole antifreeze box in the time, liquid will flow back to crankcase by the pressure crankcase bleed pipe, enter oil sump, in order to avoid flow to cleaned air conduit and closure.
The position of antifreeze box 3 entrance and exits of the present utility model can be set as required, and preferably, entrance and exit lays respectively at antifreeze box along the upstream and downstream opposite side of gas flow direction.The purpose of this set is to prevent that the most of oil gas mixture from condensing in antifreeze box 3.More preferably, the center line of antifreeze box entrance and exit concerns that at an angle more preferably, the outlet of antifreeze box and the angle of center line of suction are between 90 degree are spent to 270.
In sum, the utility model is forced the cavity part of crankcase bleed pipe and a sealing of the middle design of cleaned air conduit by motor, and be integrated in a one-way valve on the antifreeze box, condensed water is stored in this antifreeze box, and automatically discharge, prevent from forcing the adverse consequences that crankcase ventilation is icing and cause thereby play, and simple in structure, with low cost, be conducive to implement in batches.
Although the utility model is described by above-mentioned preferred implementation, but it realizes only being not limited to above-mentioned mode of execution, should be realized that in the situation that does not break away from the utility model spirit and scope those skilled in the art can make different variations and modification to the utility model.
Claims (6)
1. vehicle crankcase ventilation ice protection system, it is characterized in that: described system comprises crankcase bleed pipe and cleaned air conduit, between described crankcase bleed pipe and cleaned air conduit, be provided with antifreeze box, the entrance of described antifreeze box is communicated with crankcase bleed pipe, and the outlet of described antifreeze box is connected with the pipe side wall of cleaned air conduit.
2. vehicle crankcase ventilation ice protection system according to claim 1, it is characterized in that: described antifreeze box is provided with one-way valve, and when described one-way valve was in open mode, described antifreeze box was communicated with outside.
3. vehicle crankcase ventilation ice protection system according to claim 2, it is characterized in that: described one-way valve is positioned at the bottom of antifreeze box.
4. according to claim 1 or 2 described vehicle crankcase ventilation ice protection systems, it is characterized in that: the entrance height of described antifreeze box is lower than open height.
5. vehicle crankcase ventilation ice protection system according to claim 4 is characterized in that: the low 1～3mm of entrance ratio outlet of described antifreeze box.
6. vehicle crankcase ventilation ice protection system according to claim 1 is characterized in that: the angle between the center line of the entrance and exit of described antifreeze box at 90 degree between 270 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313615 CN202851107U (en) | 2012-06-29 | 2012-06-29 | Ventilation anti-icing system of automobile crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313615 CN202851107U (en) | 2012-06-29 | 2012-06-29 | Ventilation anti-icing system of automobile crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851107U true CN202851107U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313615 Expired - Lifetime CN202851107U (en) | 2012-06-29 | 2012-06-29 | Ventilation anti-icing system of automobile crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851107U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071445A (en) * | 2016-11-11 | 2018-05-25 | 上海汽车集团股份有限公司 | Crankcase anti-icing equipment, crankcase ventilation system, engine and automobile |
| CN110145384A (en) * | 2019-06-28 | 2019-08-20 | 潍柴动力股份有限公司 | Engine breather outlet structure |
| CN110529696A (en) * | 2019-09-19 | 2019-12-03 | 奇瑞汽车股份有限公司 | A kind of connection structure for preventing crankcase ventilation pipeline ice blockage |
| CN116906152A (en) * | 2023-07-07 | 2023-10-20 | 广西玉柴船电动力有限公司 | Respirator device capable of automatically discharging condensed water |
| CN119308782A (en) * | 2024-12-11 | 2025-01-14 | 浙江安吉华意科技有限公司 | A low-temperature air distribution assembly and method for combining an air duct with a crankshaft duct |
-
2012
- 2012-06-29 CN CN 201220313615 patent/CN202851107U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071445A (en) * | 2016-11-11 | 2018-05-25 | 上海汽车集团股份有限公司 | Crankcase anti-icing equipment, crankcase ventilation system, engine and automobile |
| CN110145384A (en) * | 2019-06-28 | 2019-08-20 | 潍柴动力股份有限公司 | Engine breather outlet structure |
| CN110529696A (en) * | 2019-09-19 | 2019-12-03 | 奇瑞汽车股份有限公司 | A kind of connection structure for preventing crankcase ventilation pipeline ice blockage |
| CN116906152A (en) * | 2023-07-07 | 2023-10-20 | 广西玉柴船电动力有限公司 | Respirator device capable of automatically discharging condensed water |
| CN119308782A (en) * | 2024-12-11 | 2025-01-14 | 浙江安吉华意科技有限公司 | A low-temperature air distribution assembly and method for combining an air duct with a crankshaft duct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |