CN108894851A - crankcase ventilation system - Google Patents
crankcase ventilation system Download PDFInfo
- Publication number
- CN108894851A CN108894851A CN201810639417.0A CN201810639417A CN108894851A CN 108894851 A CN108894851 A CN 108894851A CN 201810639417 A CN201810639417 A CN 201810639417A CN 108894851 A CN108894851 A CN 108894851A
- Authority
- CN
- China
- Prior art keywords
- access
- tonifying
- pipeline
- ventilation system
- crankcase ventilation
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
- F01M13/025—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction with an inlet-conduit via an air-filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
- F01M13/023—Control valves in suction conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
- F01M2013/0016—Breather valves with a membrane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0077—Engine parameters used for crankcase breather systems
Abstract
The present invention provides a kind of crankcase ventilation system, it includes engine body, inlet manifold, oil and gas separating system, pressure-control valve, oil return line, wherein the inlet manifold and the oil and gas separating system are separately connected the engine body, the pressure-control valve connects the oil and gas separating system, which is connected by the oil return line with the engine body；The crankcase ventilation system further includes the first triton access, the second triton access and tonifying Qi access, which is the gas passage under small load condition, and both ends are separately connected the pressure-control valve and the inlet manifold；The second triton access and the first triton access are arranged side by side, are the gas passage under high load working condition, both ends are separately connected pipeline and pressure-control valve before booster；The tonifying Qi access both ends are separately connected pipeline and engine body after air filter.Crankcase ventilation system of the invention can improve oil dilution and lubricating oil emulsion problem.
Description
Technical field
The present invention relates to automobile technical fields, more particularly to a kind of song that can improve oil dilution and lubricating oil emulsion problem
Ventilation system for shaft box.
Background technique
When the engine runs, minute quantity combustion mixture always drains in crankcase.The gasoline drained in crankcase steams
Machine oil will be diluted after vapour condensation, engine oil viscosity is made to become smaller；Water vapor condensation in exhaust gas forms foam in lubricating oil, destroys profit
The supply of lubricating oil；Vapor and acidic materials in exhaust gas will corrode part and lubricants performance made to be deteriorated.Meanwhile leaking into song
Gas in axle box increases the pressure and temperature in crankcase, and machine oil will be caused to reveal and be lost from oil sealing, liner.For
This, existing engine mostly uses greatly closed crankcase ventilation system.
Specifically, the crankcase ventilation system of engine is imported internal exhaust gas is remained in engine combustion process
Into gas handling system, while ozone is imported into crankcase and carries out gas exchanges, to carry out in-cylinder combustion again, prevented
Only imperfect combustion exhaust gas keeps the machine oil in crankcase rotten, it is a kind of structure for improving burning and discharge.In certain poles
Under end ring border, operating condition, because valve mechanism cover (connection crankcase) internal pressure is greater than pressure in air filter rear hose, valve mechanism cover connection
Crankcase internal gas flows to air filter rear hose, just has vapor icing, lubricating oil emulsion phenomenon.In another case, it adopts
With needle valve or certain slow Pcv valves of response, air pipeline flow velocity is low, also has vapor icing, lubricating oil emulsion problem.
The icing phenomenon of crankcase ventilation system may cause pipeline blockage, to cause pressure inside crankcase ventilation system
Power is excessive, and damage sealing element causes leakage problem.Lubricating oil emulsion will affect movement parts lubrication, cause to seize, Bearing score, damage are started
Machine.
To solve this problem, it is necessary to one kind be provided and be able to solve engine gasoline dilution problem, improve lubricating oil emulsion
The crankcase ventilation system of problem.
Summary of the invention
The present invention provides a kind of crankcase ventilation system comprising engine body, inlet manifold, oil and gas separating system,
Pressure-control valve, oil return line, wherein the inlet manifold and the oil and gas separating system are separately connected the engine body, the pressure control
Valve processed connects the oil and gas separating system, which is connected by the oil return line with the engine body；The crankcase
Ventilating system further includes the first triton access, the second triton access and tonifying Qi access, which is Smaller load work
Gas passage under condition, both ends are separately connected the pressure-control valve and the inlet manifold；The second triton access and this first
Triton access is arranged side by side, is the gas passage under high load working condition, and both ends are separately connected pipeline and pressure control before booster
Valve；The tonifying Qi access both ends are separately connected pipeline and engine body after air filter.
In one embodiment of the invention, the first triton access include Smaller load pipeline and be located at the Smaller load pipeline
In Smaller load line check valve.The Smaller load line check valve is sheet baffle.
In another embodiment of the present invention, which includes sequentially connected big load pipeline, bears greatly
Pipeline, booster and manifold connections road after lotus line check valve, air filter connecting line, air filter.The big load pipeline is unidirectional
Valve is sheet baffle.
In one embodiment of the invention, which further includes air filter device, by after the air filter
Pipeline is connect with the second triton access.
In one embodiment of the invention, the tonifying Qi access successively include big load pipeline, big load line check valve,
Tonifying Qi pipeline and tonifying Qi check valve, the big load line check valve are located on the big load pipeline, which is located at
Blowdown pipe road.
In one embodiment of the invention, which is fixed on cylinder head ontology, and with pipeline after air filter
Connection.
In one embodiment of the invention, the tonifying Qi check valve include shell, with the upper interface of the tonifying Qi pipeline connection,
Lower interface, the tappet, the hard filler and diaphragm supported by the tappet being connect with crankcase, the hard filler with should
There is gap, which is located in the gap between the upper interface of shell.
In one embodiment of the invention, interface is located at the case top central location on this.
In one embodiment of the invention, which is elastic material composition.
In the present invention, when the pressure of pipeline becomes smaller after air filter, at once by the second triton access from the engine to
Pipeline tonifying Qi after the air filter, after becoming negative pressure in engine, by the tonifying Qi access from pipeline after the air filter to the engine
Tonifying Qi is achieved in the balance of air pressure.Meanwhile by introducing fresh air, the gas of acceleration motor inside cavity flows, by
Phenomena such as this reduces condensation effect, final to improve oil dilution and lubricating oil emulsion, avoids vapor icing, lubricating oil emulsion
Occur.
Structure design of the invention, air compensation is big, can fast implement air pressure balance；While structure is simple, reliable, manufacture
Technical maturity.In addition, the check valve 164 of the second triton access and the first check valve of the tonifying Qi access are integrated in by the present invention
Together, it is effectively saved space；Circuit design through the invention can make engine motor oil dilution rate reduce by 1.95%, hair
Motivation machine oil water content reduces by 1.53%.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, special below to lift preferred embodiment, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of crankcase ventilation system of the invention.
Fig. 2 is the structural schematic diagram of the oil and gas separating system and Pcv valve in Fig. 1.
Fig. 3 is the tonifying Qi check valve position view on tonifying Qi access.
Fig. 4 is position view of the tonifying Qi check valve shown in Fig. 3 on cylinder head ontology.
Fig. 5 is the structural schematic diagram of tonifying Qi check valve shown in Fig. 3.
Fig. 6 is the position view of each check valve in crankcase ventilation system of the invention.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Preferred embodiment, the present invention is described in detail as follows.
Crankcase ventilation system of the invention includes engine body, inlet manifold, oil and gas separating system, pressure control
Valve, oil return line, wherein the inlet manifold and the oil and gas separating system are separately connected the engine body, pressure-control valve connection
The oil and gas separating system, the oil and gas separating system are connected by the oil return line with the engine body.The crankcase ventilation system
It further include the first triton access, the second triton access and tonifying Qi access, which is separately connected the pressure
Control valve and the inlet manifold；The second triton access and the first triton access are arranged side by side, before both ends are separately connected booster
Pipeline and the pressure-control valve；The tonifying Qi access both ends are separately connected pipeline and engine body after air filter.
It is as shown in Figure 1 the structural schematic diagram of crankcase ventilation system of the invention, Fig. 2 is shown
The structural schematic diagram of oil and gas separating system and Pcv valve in Fig. 1.So-called Pcv valve, i.e. pressure-control valve
(Pressure Control Valve) is a kind of check valve, it can be prevented in low engine speed, Smaller load, because of air inlet
The vacuum degree of manifold is too big and machine oil is sucked out out of crankcase.
As shown in Fig. 1 and 2, which includes engine body 110, inlet manifold 120, oil gas point
From system 130, Pcv valve 140, oil return line 150；Wherein the inlet manifold 120 and the oil and gas separating system 130 are separately connected the hair
Motivation ontology 110, the Pcv valve 140 connect the oil and gas separating system 130.It is oil sump 112 below the engine body 110, it should
Oil and gas separating system 130 is connected by oil return line 150 with the oil sump 112 of engine body 110.As shown in Fig. 2, the engine
There is upper port 114, when engine body 110 starts, gas enters oil and gas separating system through upper port 114 in ontology 110
130, oil, gas separation are carried out in the oil and gas separating system 130, the machine oil of carrying is separated and passes through oil return line 150 flow back into
The oil sump 112 of engine body 110, the gas componants such as gasoline and vapor then enter Pcv valve from the oil and gas separating system 130
140, thus and only allow gas to come out from the oil and gas separating system 130, machine oil cannot go out, prevent from altering oil to inlet manifold 120,
It results in blockage.
As shown in Figure 1 and Figure 2, which further includes the first triton access, the first triton access two
End is separately connected the Pcv valve 140 and the inlet manifold 120.The first triton access is the gas passage under small load condition, packet
Include Smaller load pipeline 152 and the Smaller load line check valve 154 in the Smaller load pipeline 152.In a reality of the invention
It applies in example, which is sheet baffle.
The crankcase ventilation system 100 further includes the second triton access arranged side by side with the first triton access, second song
Road is the gas passage under high load working condition all, does not enter work under small load condition.Its both ends is separately connected the air inlet
Manifold 120 and the Pcv valve 140.The second triton access includes that sequentially connected big load pipeline 162, big load pipeline are unidirectional
Pipeline 172, booster 168 and manifold connections road 169 after valve 164, air filter connecting line 166, air filter.
The crankcase ventilation system 100 further includes air filter device 170, passes through pipeline 172 after the air filter and second song
Road connects all.
As shown in Figure 1, the crankcase ventilation system 100 further includes tonifying Qi access, which is separately connected PCV
Valve 140 and the engine body 110.The tonifying Qi access successively includes big load pipeline 162, big load line check valve 164, mends
Air pipe 182 and tonifying Qi check valve 184, the tonifying Qi check valve 184 are located on the tonifying Qi pipeline 182.Wherein second triton
The big load line check valve 164 of access functions simultaneously as a tonifying Qi check valve of the tonifying Qi access, that is, the big load pipeline
Check valve 164 and first check valve of the tonifying Qi access integrate so that structure arrangement using more efficient
Rationally.In one embodiment of the invention, which is sheet baffle.
In Fig. 2 gas from the Pcv valve 140 come out after by two interfaces, one of interface connects the big load pipeline
162 to pipeline 172 after the air filter.Fig. 3 show the tonifying Qi check valve position view on tonifying Qi access.Pipeline 172 after air filter
As shown in figure 3, its back lower place be big load line check valve 164, the big load line check valve 164 can only outlet, Bu Nengjin
Gas, is sheet baffle, realizes opening and closing by gravity and gas momentum.The tonifying Qi check valve 184 is fixed on cylinder head ontology 116
On, lower end connects crankcase, is illustrated in figure 4 position signal of the tonifying Qi check valve 184 on the cylinder head ontology 116
Figure.
Fig. 5 show the structural schematic diagram of the tonifying Qi check valve 184 of the invention.The tonifying Qi check valve 184 includes shell
1841, the upper interface 1842 being connected to tonifying Qi pipeline 182 and the lower interface 1846 being connect with lower section crankcase, it is preferable that should
The upper interface 1842 being connected to tonifying Qi pipeline 182 is located at 1841 top center position of shell.Furthermore the tonifying Qi check valve 184
Further include in the shell 1841 tappet 1843 and by the tappet 1843 support, surface be circular hard filler 1844, should
There is gap between hard filler 1844 and the upper interface 1842 of the shell 1842, a diaphragm 1845 is located in the gap, and
Interface 1842 on this can be blocked.The diaphragm 1845 is elastic material composition, can be elastic sheet metal, flexible plastic sheet.
The working principle of the tonifying Qi check valve 184 is：Its lower end is inside crankcase, when the 1845 lower end gas pressure of diaphragm
Power be less than upper end gas pressure when, the diaphragm 1845 is by negative-pressure sucking, and diaphragm 1845 is bent downwardly at this time, at this time with the tonifying Qi
The upper interface 1842 that pipeline 182 is connected to is opened, which intervenes work, gas via interface 1842 on this, pass through
Gap between the diaphragm 1845 and the shell 1841 of the tonifying Qi check valve 184 enters crankcase.When the lower end of the diaphragm 1845
When gas pressure is greater than upper end gas pressure, the extruding of the diaphragm 1845 by upward pressure, the diaphragm 1845 and the shell at this time
Interface 1842 on this are blocked in the fitting of body 1841, and the tonifying Qi check valve 184 plays sealing function at this time, stops working.
The each check valve position view being illustrated in figure 6 in crankcase ventilation system 100 of the invention.In conjunction with Fig. 4
And shown in Fig. 6, Smaller load line check valve 154, big load line check valve 164 are sheet baffle, and the tonifying Qi check valve
184 are located at 182 lower section of tonifying Qi pipeline.
The working principle of the crankcase ventilation system 100 is as follows：When a vehicle is started, from the upper gas of engine body 110
114 air inlets of mouth, vehicle is in low speed at this time, booster 168 does not intervene work, that is, under small load condition, the air inlet discrimination
Pipe 120 is negative pressure source, and crank case gases enter the inlet manifold 120 by passing through the first triton access after the Pcv valve 140,
Subsequently into the combustion chambers burn of engine.That is, the inlet manifold 120 gases taken out in engine body 110, by
This will be pumped into negative pressure in engine body 110.
The engine body 110 of negative pressure needs gas to balance negative pressure, and vehicle initially enters high speed, the booster as a result,
168 intervention work, that is, high load working condition, the engine body 110 of negative pressure extract the gas in pipeline, at this time pipeline after air filter
172 are evacuated, and are negative pressure source, which is positive pressure, and pipeline 172 enters after the air of air filter is by the air filter
The inlet manifold 120 and the tonifying Qi access, crank case gases are pressed into inlet manifold 120 by the pressure of the booster 168,
Finally enter combustion chambers burn.Meanwhile tonifying Qi access is connected to ambient atmosphere, end pressure under the diaphragm of the tonifying Qi check valve 184
Less than upper end pressure, i.e. lower end crankcase pressure is negative pressure, and upper end is atmospheric pressure, and the diaphragm is turned under under pressure
Song, thus opens the tonifying Qi check valve 184, and fresh air can be entered inside crankcase simultaneously by the tonifying Qi access.
After the tonifying Qi for a period of time, pipeline 172 becomes negative pressure source again after air filter, manages after Front crank case and the air filter
Gas connection between road 172, crankcase pressure are adjusted to negative pressure by negative pressure source after the air filter, at this time tonifying Qi check valve 184
Diaphragm under end pressure be higher than upper end pressure, which is bent upwards, and tonifying Qi check valve 184 is closed, and no fresh air fills into.
In general, the pressure inside the valve mechanism cover of crankcase is connected to greater than when the pressure of pipeline, connection is bent after air filter
Gas inside the valve mechanism cover of axle box can flow to pipeline after the air filter, because pipeline is connected to outside air after air filter, temperature compared with
It is low, it be easy to cause vapor to freeze, lubricating oil emulsion phenomenon.And in the present invention, since the second triton access and the tonifying Qi are logical
The presence on road, when the pressure of pipeline becomes smaller after air filter, after passing through the second triton access at once from the engine to the air filter
Pipeline tonifying Qi, after becoming negative pressure in engine, by the tonifying Qi access from pipeline after the air filter to the engine tonifying Qi, thus
Realize the balance of air pressure.Meanwhile by introducing fresh air, the gas flowing of acceleration motor inside cavity is thus reduced
The appearance for phenomena such as condensation effect finally improves oil dilution and lubricating oil emulsion, avoids vapor icing, lubricating oil emulsion.
Structure through the invention, air compensation is big, can fast implement air pressure balance；Meanwhile structure is simple, reliable；System
Make technical maturity.The cylinder head ontology 114 is to shut state, and the present invention is got through in the prior art, with pipeline after air filter
Gas connection, and the tonifying Qi check valve 184 is fixed on the cylinder head ontology 114, such as welding manner, it is simple easily to realize.
Advantage of the invention is that：By single by the first of the check valve 164 of the second triton access and the tonifying Qi access
It is integrated to valve, is effectively saved space；Circuit design through the invention can make the reduction of engine motor oil dilution rate
1.95%, engine motor oil water content reduces by 1.53%.
As a result, in the present invention, it realizes and passes through the two access tonifying Qi of the second triton access and tonifying Qi access.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (11)
1. a kind of crankcase ventilation system comprising engine body, inlet manifold, oil and gas separating system, pressure-control valve, oil
Circuit, wherein the inlet manifold and the oil and gas separating system are separately connected the engine body, which connects the oil
Gas separating system, the oil and gas separating system are connected by the oil return line with the engine body；It is characterized in that：The crankcase is logical
Wind system further includes the first triton access, the second triton access and tonifying Qi access,
The first triton access is the gas passage under small load condition, and both ends are separately connected the pressure-control valve and the air inlet
Manifold；
The second triton access and the first triton access are arranged side by side, are the gas passage under high load working condition, both ends connect respectively
Connect pipeline and the pressure-control valve before booster；
The tonifying Qi access both ends are separately connected pipeline and engine body after air filter.
2. crankcase ventilation system according to claim 1, it is characterised in that：The first triton access includes Smaller load pipe
Road and the Smaller load line check valve in the Smaller load pipeline.
3. crankcase ventilation system according to claim 2, it is characterised in that：The Smaller load line check valve is sheet gear
Plate.
4. crankcase ventilation system according to claim 1, it is characterised in that：The second triton access includes being sequentially connected with
Big load pipeline, big load line check valve, air filter connecting line, pipeline, booster and manifold connections road after air filter.
5. crankcase ventilation system according to claim 4, it is characterised in that：The crankcase ventilation system further includes air filter
Device is connect by pipeline after the air filter with the second triton access.
6. crankcase ventilation system according to claim 4, it is characterised in that：The big load line check valve is sheet gear
Plate.
7. crankcase ventilation system according to claim 1, it is characterised in that：The tonifying Qi access successively includes big load pipe
Road, big load line check valve, tonifying Qi pipeline and tonifying Qi check valve, the big load line check valve are located at the big load pipeline
On, which is located at blowdown pipe road.
8. crankcase ventilation system according to claim 7, it is characterised in that：The tonifying Qi check valve is fixed on cylinder head sheet
On body, and with piping connection after air filter.
9. crankcase ventilation system according to claim 7, it is characterised in that：The tonifying Qi check valve includes shell and should
The upper interface of tonifying Qi pipeline connection, the lower interface being connect with crankcase, tappet, the hard filler supported by the tappet and
There is gap, which is located in the gap between the upper interface of diaphragm, the hard filler and the shell.
10. crankcase ventilation system according to claim 9, it is characterised in that：Interface is located in the case top on this
Entreat position.
11. crankcase ventilation system according to claim 9, it is characterised in that：The diaphragm is elastic material composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639417.0A CN108894851A (en) | 2018-06-21 | 2018-06-21 | crankcase ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639417.0A CN108894851A (en) | 2018-06-21 | 2018-06-21 | crankcase ventilation system |
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|---|---|
| CN108894851A true CN108894851A (en) | 2018-11-27 |
Family
ID=64345308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810639417.0A Pending CN108894851A (en) | 2018-06-21 | 2018-06-21 | crankcase ventilation system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593986A (en) * | 2019-10-16 | 2019-12-20 | 潍柴西港新能源动力有限公司 | Crankcase ventilation system of premixed gas engine before supercharger and ventilation method thereof |
| CN111502796A (en) * | 2020-04-21 | 2020-08-07 | 李斯特技术中心（上海）有限公司 | High-efficient clean control by temperature change gasoline engine oil piece-rate system |
| CN111520212A (en) * | 2020-04-30 | 2020-08-11 | 广西玉柴机器股份有限公司 | Method for preventing water vapor of crankcase ventilation system from condensing |
| 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 |
| CN112284747A (en) * | 2020-10-26 | 2021-01-29 | 无锡沃尔福汽车技术有限公司 | Function test equipment for engine crankcase ventilation system and arrangement method |
| CN114060122A (en) * | 2020-08-07 | 2022-02-18 | 广州汽车集团股份有限公司 | Engine crankcase forced ventilation system, engine and car |
| CN114251153A (en) * | 2020-09-24 | 2022-03-29 | 北京汽车动力总成有限公司 | Bent pipeline structure and vehicle |
| CN114645750A (en) * | 2022-03-14 | 2022-06-21 | 东风汽车集团股份有限公司 | Vehicle, protection device and protection method for engine in wading process and computer equipment |
| US11454147B2 (en) | 2020-09-21 | 2022-09-27 | Caterpillar Inc. | Internal combustion engine with purge system |
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Application publication date: 20181127 |