CN204552882U - A kind of crankcase ventilation system and motor - Google Patents
A kind of crankcase ventilation system and motor Download PDFInfo
- Publication number
- CN204552882U CN204552882U CN201520252204.4U CN201520252204U CN204552882U CN 204552882 U CN204552882 U CN 204552882U CN 201520252204 U CN201520252204 U CN 201520252204U CN 204552882 U CN204552882 U CN 204552882U
- Authority
- CN
- China
- Prior art keywords
- crankcase
- intake manifold
- cylinder head
- mechanism cover
- 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 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000002912 waste gas Substances 0.000 claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000036760 body temperature Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a kind of crankcase ventilation system and motor, and this crankcase ventilation system comprises: cylinder head (1); Valve mechanism cover (2); The intake manifold (3) be connected with cylinder head (1); Be arranged at the ventilation duct (4) in cylinder head, the first end (41) of ventilation duct (4) is through with valve mechanism cover (2), and second end (42) of ventilation duct (4) is through with the pressure stabilizing cavity of intake manifold (3); And Pcv valve (5) is arranged at the joint of pressure stabilizing cavity and cylinder head (1); During time of engine low speed, after the waste gas of crankcase enters valve mechanism cover (2), Pcv valve (5) is transferred to by ventilation duct (4), intake manifold (3) is entered by Pcv valve (5), waste gas does not need to walk exterior line, directly from valve mechanism cover again to intake manifold, because engine body temperature is higher, moisture inside crankcase waste gas can not congeal into ice, and there will not be the situation blocking crankcase ventilation system.
Description
Technical field
The utility model relates to technical field of engines, particularly a kind of crankcase ventilation system and motor.
Background technique
Existing oil and gas separating system generally adopts structure as follows, during Smaller load, crankcase waste gas is passed to after in cylinder head cover, deaerator in cylinder head cover is separated, machine oil flows back to oil sump, gas after separation, due to intake manifold negative pressure, enters intake manifold through Pcv valve, and then enters firing chamber and burn away.Now sebific duct M is due to crankcase negative pressure, and fresh air enters.And during large load, it is lower that intake manifold locates air pressure, and crank case gas pressure is higher, and crank case gases directly enters intake manifold by sebific duct M.Current this crankcase ventilation system is when Smaller load, and crankcase waste gas by cylinder head cover, then by the sebific duct L of Pcv valve and a section longer, then enters intake manifold.The path that this layout crankcase waste gas enters intake manifold process is longer, when low temperature, particularly slow-speed test in winter (-40 DEG C), steam inside crankcase waste gas condenses into water and then condensation ice cube after the pipeline cooling that outside is longer, block sebific duct L time serious, cause the high and engine oil leakage of crankcase pressure.
Model utility content
The purpose of this utility model is to provide a kind of crankcase ventilation system and motor, solve and cause because outer hose is longer condensing under low temperature condition and block the problem of sebific duct, under making low temperature low speed environments, engine crankshaft ventilation system can normally work, and eliminates potential safety hazard.
In order to achieve the above object, the utility model embodiment provides a kind of crankcase ventilation system, comprising:
Cylinder head;
Be covered in the valve mechanism cover in described cylinder head;
The intake manifold be connected with described cylinder head;
Be arranged at the ventilation duct in described cylinder head, first end and the described valve mechanism cover of described ventilation duct are through, the second end of described ventilation duct and the pressure stabilizing cavity of described intake manifold through; And
Be integrated in the positive crankcase ventilation (PCV) Pcv valve on the pressure stabilizing cavity of described intake manifold, described Pcv valve is arranged at the joint of described pressure stabilizing cavity and described cylinder head; Wherein,
During time of engine low speed, after the waste gas of crankcase enters described valve mechanism cover, be transferred to described Pcv valve by described ventilation duct, enter described intake manifold by described Pcv valve.
Wherein, be provided with gas and oil separating plant in described valve mechanism cover, the waste gas of described crankcase enters described valve mechanism cover, and described gas and oil separating plant exports ventilation duct to after carrying out Oil-gas Separation to described waste gas again.
Wherein, described crankcase ventilation system also comprises: the firing chamber be connected with described intake manifold, and the gas entering described intake manifold from described Pcv valve is transferred into described firing chamber and burns away.
The utility model embodiment also provides a kind of motor, comprises crankcase, also comprises the crankcase ventilation system as above be connected with described crankcase.
Technique scheme of the present utility model at least has following beneficial effect:
In the crankcase ventilation system of the utility model embodiment and motor, by described crankcase bleed pipe is arranged in cylinder head, and Pcv valve is integrated on the pressure stabilizing cavity of intake manifold, under making time of engine low speed and low-temperature condition, crankcase waste gas does not need to walk exterior line, directly from valve mechanism cover again to intake manifold, because engine body temperature is higher, moisture inside crankcase waste gas can not congeal into ice, and there will not be the situation blocking crankcase ventilation system; Simultaneously due to the pipe clamp that the setting and fixing glue that eliminate one section of sebific duct are effective, reduce the risk of motor cost and sebific duct leakage of oil.
Accompanying drawing explanation
Fig. 1 represents the basic structure schematic diagram of oil and gas separating system in prior art;
Fig. 2 represents the composition structural representation of the crankcase ventilation system of the utility model embodiment.
Description of reference numerals:
1-cylinder head; 2-valve mechanism cover; 3-intake manifold; 4-ventilation duct; The first end of 41-ventilation duct; Second end of 42-ventilation duct; 5-PCV valve.
Embodiment
For making the technical problems to be solved in the utility model, technological scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model blocks the problem of sebific duct for causing because outer hose is longer under low temperature condition in prior art condensing, a kind of crankcase ventilation system and motor are provided, by described crankcase bleed pipe is arranged in cylinder head, and Pcv valve is integrated on the pressure stabilizing cavity of intake manifold, under making time of engine low speed and low-temperature condition, crankcase waste gas does not need to walk exterior line, directly from valve mechanism cover again to intake manifold, because engine body temperature is higher, moisture inside crankcase waste gas can not congeal into ice, there will not be the situation blocking crankcase ventilation system, simultaneously due to the pipe clamp that the setting and fixing glue that eliminate one section of sebific duct are effective, reduce the risk of motor cost and sebific duct leakage of oil.
As shown in Figure 2, the utility model embodiment provides a kind of crankcase ventilation system, comprising:
Cylinder head (1);
Be covered in the valve mechanism cover (2) in described cylinder head (1);
The intake manifold (3) be connected with described cylinder head (1);
Be arranged at the ventilation duct (4) in described cylinder head, the first end (41) of described ventilation duct (4) is through with described valve mechanism cover (2), and second end (42) of described ventilation duct (4) is through with the pressure stabilizing cavity of described intake manifold (3); And
Be integrated in the positive crankcase ventilation (PCV) Pcv valve (5) on the pressure stabilizing cavity of described intake manifold (3), described Pcv valve (5) is arranged at the joint of described pressure stabilizing cavity and described cylinder head (1); Wherein,
During time of engine low speed, after the waste gas of crankcase enters described valve mechanism cover (2), be transferred to described Pcv valve (5) by described ventilation duct (4), enter described intake manifold (3) by described Pcv valve (5).
In above-described embodiment of the present utility model, by ventilation duct (4) casting in cylinder head (1), the gas through the separation of valve mechanism cover (2) is made to transfer to Pcv valve (5) place by above-mentioned ventilation duct (4), this Pcv valve (5) is arranged at the pressure stabilizing cavity of intake manifold (3) and the junction of cylinder head (1), then gas enters intake manifold (3) by Pcv valve, thus can to enter burning be again burn, avoid and directly get rid of gas to the pollution of air, improve the utilization ratio of motor fuel (machine oil) simultaneously.On the other hand, owing to directly Pcv valve (5) being integrated in intake manifold (3), eliminating the setting of the pipe clamp of external sebific duct and fixing sebific duct in prior art, reduce the cost of motor; And owing to eliminating sebific duct, avoid the risk of sebific duct leakage of oil.
Concrete, in above-described embodiment of the present utility model, described valve mechanism cover is provided with gas and oil separating plant in (2), the waste gas of described crankcase enters described valve mechanism cover (2), and described gas and oil separating plant exports ventilation duct (4) to after carrying out Oil-gas Separation to described waste gas again.
Further, described crankcase ventilation system also comprises: the firing chamber be connected with described intake manifold (3), and the gas entering described intake manifold (3) from described Pcv valve (5) is transferred into described firing chamber and burns away.
Crankcase ventilation pipeline is cast directly on cylinder cap by the utility model embodiment, Pcv valve is directly installed in intake manifold; Thus make the crankcase waste gas in cylinder head cover after Oil-gas Separation enter cylinder cap (cylinder cap casts out a vent passages and is directly connected to intake manifold pressure stabilizing cavity) by this air pipeline, Pcv valve is installed in intake manifold pressure stabilizing cavity and cylinder cap junction, during such low speed, crankcase waste gas does not need to walk exterior line, directly from cylinder head cover to cylinder cap again to intake manifold, because engine body temperature is higher, moisture inside crankcase waste gas can not congeal into ice, and there will not be the situation blocking crankcase ventilation system.
In order to better realize above-mentioned purpose, the utility model embodiment also provides a kind of motor, comprises crankcase, also comprises the crankcase ventilation system as above be connected with described crankcase.
It should be noted that, the motor that the utility model embodiment provides is the motor comprising above-mentioned crankcase ventilation system, then all embodiments of above-mentioned crankcase ventilation system are all applicable to this motor, and all can reach same or analogous beneficial effect.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a crankcase ventilation system, is characterized in that, comprising:
Cylinder head (1);
Be covered in the valve mechanism cover (2) in described cylinder head (1);
The intake manifold (3) be connected with described cylinder head (1);
Be arranged at the ventilation duct (4) in described cylinder head, the first end (41) of described ventilation duct (4) is through with described valve mechanism cover (2), and second end (42) of described ventilation duct (4) is through with the pressure stabilizing cavity of described intake manifold (3); And
Be integrated in the positive crankcase ventilation (PCV) Pcv valve (5) on the pressure stabilizing cavity of described intake manifold (3), described Pcv valve (5) is arranged at the joint of described pressure stabilizing cavity and described cylinder head (1); Wherein,
During time of engine low speed, after the waste gas of crankcase enters described valve mechanism cover (2), be transferred to described Pcv valve (5) by described ventilation duct (4), enter described intake manifold (3) by described Pcv valve (5).
2. crankcase ventilation system according to claim 1, it is characterized in that, described valve mechanism cover is provided with gas and oil separating plant in (2), the waste gas of described crankcase enters described valve mechanism cover (2), and described gas and oil separating plant exports ventilation duct (4) to after carrying out Oil-gas Separation to described waste gas again.
3. crankcase ventilation system according to claim 1, it is characterized in that, described crankcase ventilation system also comprises: the firing chamber be connected with described intake manifold (3), and the gas entering described intake manifold (3) from described Pcv valve (5) is transferred into described firing chamber and burns away.
4. a motor, comprises crankcase, it is characterized in that, also comprises the crankcase ventilation system as described in any one of claims 1 to 3 be connected with described crankcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252204.4U CN204552882U (en) | 2015-04-23 | 2015-04-23 | A kind of crankcase ventilation system and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252204.4U CN204552882U (en) | 2015-04-23 | 2015-04-23 | A kind of crankcase ventilation system and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204552882U true CN204552882U (en) | 2015-08-12 |
Family
ID=53828008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520252204.4U Expired - Fee Related CN204552882U (en) | 2015-04-23 | 2015-04-23 | A kind of crankcase ventilation system and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204552882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469420A (en) * | 2019-09-06 | 2019-11-19 | 哈尔滨东安汽车发动机制造有限公司 | PCV passage structure built in a kind of separate type cylinder cap |
-
2015
- 2015-04-23 CN CN201520252204.4U patent/CN204552882U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469420A (en) * | 2019-09-06 | 2019-11-19 | 哈尔滨东安汽车发动机制造有限公司 | PCV passage structure built in a kind of separate type cylinder cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |