CN208885361U - Crankcase ventilation structure and engine - Google Patents
Crankcase ventilation structure and engine Download PDFInfo
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- CN208885361U CN208885361U CN201821360693.5U CN201821360693U CN208885361U CN 208885361 U CN208885361 U CN 208885361U CN 201821360693 U CN201821360693 U CN 201821360693U CN 208885361 U CN208885361 U CN 208885361U
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- air pipeline
- air
- valve mechanism
- crankcase ventilation
- mechanism cover
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Abstract
The utility model provides a kind of crankcase ventilation structure, including air pipeline, valve mechanism cover, cylinder cap, cylinder and gs-oil separator, air pipeline is arranged inside valve mechanism cover, and including the first air pipeline and the second air pipeline, the inlet end of first air pipeline and the second air pipeline is connected with gs-oil separator, first air pipeline is set to valve mechanism cover, complete built-in closing pipe line is formed in cylinder cap and together with gs-oil separator, second air pipeline is integrated in inside valve mechanism cover, first air pipeline is connected with cylinder respectively with the outlet side of the second air pipeline.The utility model additionally provides a kind of engine.The crankcase ventilation structure of the utility model can effectively avoid the problem that vapor condensation freezes and blocks in air pipeline, provide good basis for engine reliable operation.
Description
Technical field
The utility model relates to automobile technical field, especially a kind of crankcase ventilation structure and engine.
Background technique
When the engine is working, a part burnt in indoor high pressure mixed gas can be by between piston and cylinder
Gas blowby is caused in clearance leakage to crankcase, therefore, engine all needs setting crankshaft ventilation tube road, this portion gas is exported
Crankcase, and make it through inlet manifold and enter in cylinder and burn.
Currently, common engine crankshaft ventilation tube road is directly installed in ventilation Oil-gas Separation module, by being arranged in hair
Rubber hose outside motivation is connected to after air throttle or is introduced directly into inlet manifold, and pipeline is longer and is exposed to cabin
Outside, due to containing large quantity of moisture in the exhaust gas that is discharged in crankcase, cold district work vehicle when in air temperature compared with
When the gas that low gas and crankcase is separated meets, the gas that crankcase is separated is because inlet manifold and air inlet are soft
Tube wall and ambient temperature at pipe pipe fitting is lower, and the vapor in oil gas often will appear cold in crankshaft ventilation tube road
The case where condensation ice, especially the operating condition of short distance Reusability but will cause air pipeline to block, keeps engine operation abnormal.
Utility model content
The purpose of the utility model is to provide a kind of crankcase ventilation structure and engines, can effectively avoid in air pipeline
The problem of vapor condensation freezes and blocks provides good basis for engine reliable operation.
The utility model provides a kind of crankcase ventilation structure, including air pipeline, valve mechanism cover, cylinder cap, cylinder and
Gs-oil separator, the air pipeline are arranged inside the valve mechanism cover, and including the first air pipeline and the second ventilation duct
The inlet end of road, first air pipeline and second air pipeline is connected with the gs-oil separator, and described first
Air pipeline forms complete built-in sealed tube in the valve mechanism cover, the cylinder cap and together with the gs-oil separator
Road, second air pipeline are integrated in inside the valve mechanism cover, and first air pipeline and the second air pipeline go out
Gas end is connected with cylinder respectively.
Further, the outlet side of first air pipeline is connected with the air intake duct of the cylinder, and described second is logical
The outlet side of air pipe line is connected to the position between air cleaner and compressor.
Further, the outlet side of second air pipeline is equipped with pipe fitting, the pipe fitting connection and described second
The hose that air pipeline is connected with the air cleaner.
Further, first air pipeline is arranged in a vertical direction, and second air pipeline is substantially along level side
To arrangement.
Further, the outlet side of second air pipeline is located above the valve mechanism cover exhaust side, and described second
Air pipeline is obliquely installed, and the outlet side of second air pipeline is made to be higher than inlet end.
Further, first air pipeline is fastenedly connected by bolt and the gs-oil separator.
The utility model also provides a kind of engine, including above-mentioned crankcase ventilation structure.
The crankcase ventilation structure of the utility model is avoided starting by being arranged air pipeline inside valve mechanism cover
The moving air of machine cabin brushes, to realize that pipeline is rapidly heated, effectively prevents vapor condensation in air pipeline and freezes
And the problem of blocking, good basis is provided for engine reliable operation.
Detailed description of the invention
Fig. 1 is crankcase ventilation structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the second air pipeline shown in FIG. 1.
Specific embodiment
Further to illustrate the present invention to reach the technical means and efficacy that predetermined purpose is taken, below in conjunction with attached drawing
And preferred embodiment, to according to the utility model proposes crankcase ventilation structure and the specific embodiment of engine, structure,
Feature and its effect, detailed description is as follows.
As shown in Figure 1, the utility model provides a kind of crankcase ventilation structure, including air pipeline 1, valve mechanism cover 2, cylinder
Lid 3, cylinder 4 and gs-oil separator 5, air pipeline 1 are arranged inside valve mechanism cover 2, and including the first air pipeline 11 and the
The inlet end of two air pipelines 12, the first air pipeline 11 and the second air pipeline 12 is connected with gs-oil separator 5, and first is logical
Air pipe line 11 forms complete built-in closing pipe line together in valve mechanism cover 2, cylinder cap 3 and with gs-oil separator 5, and second is logical
Air pipe line 12 is integrated in inside valve mechanism cover 2, the outlet side of the first air pipeline 11 and the second air pipeline 12 respectively with cylinder 4
It is connected.In the present embodiment, the second air pipeline 12 is integrated in inside valve mechanism cover 2, is referred to and is directly opened up in valve mechanism cover 2
It slots and forms the second air pipeline 12.
In the present embodiment, in 2 air inlet side of valve mechanism cover, inlet end and 5 phase of gs-oil separator of the first air pipeline 11
Connection, the outlet side of the first air pipeline 11 is connected with the air intake duct of cylinder 4, and the first air pipeline 11 is along the vertical direction
Arrangement.Cooperated according to engine operating condition difference and crankcase ventilation function is realized with different air pipelines 1, when engine operating condition is
When low speed and load, the exhaust gas being discharged out of crankcase ventilation gas blowby pipeline 6, after the separation of gs-oil separator 5, in Oil-gas Separation
It is directly entered first air pipeline 11 in 2 inner vertical direction of valve mechanism cover inside device 5, saves length of pipe, the row of improving
Gas efficiency, prevent as pipeline is longer and it is exposed caused by low temperature icing phenomenon.By the first air pipeline 11 and cylinder 4 into
Exhaust gas is discharged into cylinder 4 and burnt by air flue connection, avoids the pollution to inlet manifold (not shown).
On the top of valve mechanism cover 2, the second air pipeline 12 is formed by way of core pulling in die casting, the second ventilation duct
The inlet end on road 12 is connected with gs-oil separator 5, and the outlet side of second air pipeline 12 is located on 2 exhaust side of valve mechanism cover
Side, and the outlet side of the second air pipeline is connected to the position between air cleaner and compressor (not shown).Further
The outlet side on ground, the second pipeline 12 is equipped with pipe fitting 121, the connection of pipe fitting 121 being pressed by interference and the second air pipeline
12 and air cleaner hose (not shown), the pipe fitting 121 above exhaust side is conducive to the heating of hose, to keep away
Exempting from the icing of the second air pipeline 12 causes to block.When engine is sub-load and high load working condition, altered from crankcase ventilation
The exhaust gas being discharged in air pipe 6 is directly entered in valve mechanism cover 2 after the separation of gs-oil separator 5 inside gs-oil separator 5
Second air pipeline 12 in portion, after the exhaust gas being separated mixes with air, through compressor pressure enter cylinder 4 carry out it is secondary
Burning.As shown in Fig. 2, the second air pipeline 12 is arranged in the horizontal direction substantially, in conjunction with the practical Arrangement of Engine-room angle of engine,
Two air pipelines are obliquely installed, and the outlet side of the second air pipeline 12 is made to be higher than inlet end, and the second air pipeline of adjustment 12 is slight
It has a down dip, is affected by gravity towards gs-oil separator 5, to guarantee separating through gs-oil separator 5 for the second air pipeline 12 carrying
Liquid machine oil out, which can take advantage of a situation, flows out the second air pipeline 12, flows back in oil sump through oil return line 7, machine oil is avoided to stockpile
Influence 12 normal use of the second air pipeline.
Cooperated according to engine operating condition difference and crankcase ventilation function is realized with different air pipelines 1, realized more accurate
Crankcase pressure regulatory function, to guarantee normal operation of the engine under different operating conditions.
In addition, first air pipeline 11 is fastenedly connected by bolt with gs-oil separator 5, it can be used for six method of applicant country
Advise the immunity to ventilation sensor.
The utility model embodiment also provides a kind of engine (not shown), which includes the utility model embodiment
The crankcase ventilation structure of offer.
The crankcase ventilation structure of the utility model is by being arranged air pipeline 1 inside valve mechanism cover 2, instead of exposed
In the pipeline of external engine, the moving air for avoiding engine nacelle brushes, simultaneously because valve mechanism cover 2 is aluminium alloy material
Matter is the good conductor characteristic of heat using aluminium alloy, and after engine operation or stopping, the residual temperature of valve mechanism cover 2 can be to entire
Air pipeline 1 plays insulation effect, to realize that pipeline is rapidly heated, avoid well cold district winter ventilation pipeline 1 because
The problem of vapor condensation freezes and air pipeline 1 is caused to block provides good basis for engine reliable operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, any to be familiar with this profession
Technical staff, it is without departing from the scope of the present invention, a little when being made using above-mentioned revealed technology contents
Change or modification etc., any modification, equivalent replacement or improvement done within the spirit and principles of the present invention etc., should all wrap
Containing within protection scope of the present invention.
Claims (7)
1. a kind of crankcase ventilation structure, including air pipeline (1), valve mechanism cover (2), cylinder cap (3), cylinder (4) and oil gas point
From device (5), which is characterized in that air pipeline (1) setting is internal in the valve mechanism cover (2), and including the first ventilation duct
The inlet end of road (11) and the second air pipeline (12), first air pipeline (11) and second air pipeline (12) with
The gs-oil separator (5) is connected, and first air pipeline (11) is in the valve mechanism cover (2), the cylinder cap (3)
And forming complete built-in closing pipe line together with the gs-oil separator (5), second air pipeline (12) is integrated in institute
It is internal to state valve mechanism cover (2), the outlet side of first air pipeline (11) and second air pipeline (12) respectively with institute
Cylinder (4) is stated to be connected.
2. crankcase ventilation structure as described in claim 1, which is characterized in that the outlet side of first air pipeline (11)
It is connected with the air intake duct of the cylinder (4), the outlet side of second air pipeline (12) is connected to air cleaner and pressure
Position between mechanism of qi.
3. crankcase ventilation structure as claimed in claim 2, which is characterized in that the outlet side of second air pipeline (12)
Equipped with pipe fitting (121), pipe fitting (121) connection is connect with second air pipeline (12) and the air cleaner
Hose.
4. crankcase ventilation structure as claimed in claim 2, which is characterized in that first air pipeline (11) is along vertical side
To arrangement, second air pipeline (12) is arranged in the horizontal direction substantially.
5. crankcase ventilation structure as claimed in claim 4, which is characterized in that the outlet side of second air pipeline (12)
Above the valve mechanism cover (2) exhaust side, second air pipeline (12) is obliquely installed, and makes second air pipeline
(12) outlet side is higher than inlet end.
6. crankcase ventilation structure as described in claim 1, which is characterized in that first air pipeline (11) passes through bolt
It is fastenedly connected with the gs-oil separator (5).
7. a kind of engine, including such as crankcase ventilation structure described in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360693.5U CN208885361U (en) | 2018-08-22 | 2018-08-22 | Crankcase ventilation structure and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360693.5U CN208885361U (en) | 2018-08-22 | 2018-08-22 | Crankcase ventilation structure and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885361U true CN208885361U (en) | 2019-05-21 |
Family
ID=66509668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821360693.5U Active CN208885361U (en) | 2018-08-22 | 2018-08-22 | Crankcase ventilation structure and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208885361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636949A (en) * | 2020-06-17 | 2020-09-08 | 浙江吉利新能源商用车集团有限公司 | Closed crankcase ventilation system of heavy engine system and heavy engine system |
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
-
2018
- 2018-08-22 CN CN201821360693.5U patent/CN208885361U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN112282891B (en) * | 2019-07-25 | 2022-02-22 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN111636949A (en) * | 2020-06-17 | 2020-09-08 | 浙江吉利新能源商用车集团有限公司 | Closed crankcase ventilation system of heavy engine system and heavy engine system |
| CN111636949B (en) * | 2020-06-17 | 2021-08-13 | 浙江吉利新能源商用车集团有限公司 | Closed crankcase ventilation system of heavy engine system and heavy engine system |
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