CN105464747A - Waste gas treatment system for crankcase - Google Patents
Waste gas treatment system for crankcase Download PDFInfo
- Publication number
- CN105464747A CN105464747A CN201510859565.XA CN201510859565A CN105464747A CN 105464747 A CN105464747 A CN 105464747A CN 201510859565 A CN201510859565 A CN 201510859565A CN 105464747 A CN105464747 A CN 105464747A
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- China
- Prior art keywords
- waste gas
- crankcase
- oil
- water
- air
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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
-
- 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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides a waste gas treatment system for a crankcase. The waste gas treatment system comprises a crankcase valve chamber cover, a ventilation opening formed in the crankcase valve chamber cover, an air filter, an air filter element arranged in the air filter and an oil-water separator arranged at the bottom of the air filter. The oil-water separator comprises a waste gas inlet, a combustible mixed gas outlet, a condensing device arranged in the oil-water separator and an oil-water settling chamber arranged at the bottom of the oil-water separator. The waste gas inlet is formed above the oil-water settling chamber, and a dirt discharging opening is formed in the bottom of the oil-water settling chamber. A ventilation corrugated pipe is arranged between the waste gas inlet and the ventilation opening. Waste gas of the crankcase sequentially passes through the ventilation corrugated pipe and the oil-water separator, and then combustible mixed gas is obtained. The combustible mixed gas enters an inlet gas combustion system through the air filter element. According to the waste gas treatment system for the crankcase, waste engine oil steam and water steam in the waste gas of the crankcase can be converted into liquid and discharged before entering the inlet gas combustion system, and therefore pollution of the waste gas of the crankcase to the inlet gas combustion system and a tail gas purifying system is avoided.
Description
Technical field
The present invention relates to technical field of automobile, particularly a kind of crankcase waste gas processing system.
Background technique
Motor can produce waste gas, this waste gas main component 3 kinds in lower crankcase in working order: i.e. inflammable mixture HC and water vapour H
2o, and when engine operating temperature reaches 85 ~ 95 DEG C, the unstable molecule in the vaporific machine oil in crankcase also can volatilize, mixing is in the offgas.In order to reduce the pressure in crankcase, make each Sealing of motor oil-proof, reduce waste gas to the pollution of machine oil, machine oil is never degenerated, after needing charge combustion system waste gas being sucked motor to carry out secondary combustion, then discharge in atmosphere after exhaust gas purification system purification.
Under the pressure discharged in crankcase and the suction of gas handling system, machine oil molecule vaporific, unstable in inflammable mixture in waste gas, water vapour and crankcase can be inhaled into charge combustion system and the exhaust gas purification system of motor in the lump, cause the pollution of this two Iarge-scale system, namely greasy filth, carbon deposit pollute.Just current, the carbon deposit of ignition gasoline engine, just as the cancer of automobile, is common Problems existing.
In crankcase waste gas processing system as shown in Figure of description Fig. 1, crankcase waste gas directly enters intake manifold by crankcase bleed pipe 14, and the portion of crankcase 1 is also forced to suck in intake manifold 4 by Pcv valve 15, finally enter charge combustion system, owing to containing used oil and water in waste gas, enter in intake manifold 4 and can be attached to closure 5, on intake manifold wall, form one deck mucous membrane, when run into do not filter clean dust from air-strainer time, just by it adhesion, along with the prolongation of service time, just one deck greasy filth is defined, and it is more and more thicker, the sensitivity of air inlet pressure sensor 41 can be affected, when waste gas enters firing chamber through the intake valve of high temperature, machine oil steam wherein runs into high temperature cracking can form hard carbon deposit, and water vapor can hinder the normal combustion of fuel, because the velocity of combustion of machine oil is slow, the used oil gas do not burnt enters into exhaust gas purification system, due to the temperature of exhaust gas purification system higher (400-600 DEG C), still machine oil lytic response can be made to generate hard carbon deposit, the ceramic capillary of blocking lambda sensor and ternary catalyzing unit, causes engine power deficiency, oil consumption increase, exhaust emissions to exceed standard, maintain cost increase etc.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of crankcase waste gas processing system that fully can purify crankcase waste gas prevention carbon on engine and be formed, this treatment device can remove used oil steam in crankcase waste gas and water vapour, avoid the pollution of crankcase waste gas to charge combustion system and exhaust gas purification system, and make burning more abundant, improve the power of motor, decrease the discharge of harmful gas.
For solving the problems of the technologies described above, the invention provides a kind of crankcase waste gas processing system, comprise crankcase valve chamber cover, be located at ventilated port, air-strainer that described crankcase cyclinder head cover covers, be located at the air filtering core in described air-strainer and be located at the oil and water seperator of air filter bottom section; Described oil and water seperator comprises exhaust gas entrance, inflammable mixture outlet, the condensation device being located at described oil and water seperator inside and the profit setting chamber be located at bottom described oil and water seperator, described exhaust gas entrance is positioned at above described profit setting chamber, is provided with sewage draining exit bottom described profit setting chamber; Ventilation bellows is provided with between described exhaust gas entrance and described ventilated port; Crankcase waste gas obtains burning mixture successively after described ventilation bellows, described oil and water seperator, and burning mixture enters charge combustion system through described air filtering core.
Optionally, the length range of described ventilation bellows is 50-80cm.
Optionally, described ventilation bellows prolongs crankcase waste gas from described ventilated port and flows out direction and to be inclined upwardly setting.
Compared with prior art, beneficial effect of the present invention is: crankcase waste gas is delivered in the process of oil and water seperator by ventilation bellows by the present invention, make use of machine oil steam cleverly, water vapour is different with the different temperature with changing into required for liquid of molecular activity of inflammable mixture (main component is HC) three kinds of gases, used oil steam after the adhesion and condensation device condensation of ventilation bellows in filtering waste gas and water vapour, condensed water and used oil liquid flow into bottom profit setting chamber and discharge through sewage draining exit under oil and water seperator.Clean burning mixture by entering in intake manifold after air filtering core, and is delivered in charge combustion system.The burning mixture entering charge combustion system after waste gas treatment of the present invention is clean, dry, be attached on closure and intake manifold wall after the waste gas avoided containing used oil and water enters charge combustion system and form mucous membrane, also be bonded to regard to the air avoided containing dust and mucous membrane formed more and more thicker greasy filth and enter the phenomenon that firing chamber and exhaust gas purification system produce carbon distribution, improve the sensitivity of air inlet pressure sensor and lambda sensor, make burning more abundant, reduce engine power deficiency, oil consumption increases, exhaust emissions exceeds standard, the probability that maintenance cost increases.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of crankcase waste gas processing system in prior art;
Fig. 2 is the structural representation of crankcase waste gas processing system provided by the invention.
Embodiment
Embodiment 1: as shown in Figure 2, the invention provides a kind of crankcase waste gas processing system, comprise crankcase valve chamber cover 1, be located at ventilated port 11 that described crankcase cyclinder head cover covers, air-strainer 2, the oil and water seperator 3 being located at the air filtering core 21 in air-strainer 2 and being located at bottom air-strainer 2; Oil and water seperator 3 comprises exhaust gas entrance 32, inflammable mixture outlet 34, the condensation device 33 being located at oil and water seperator 3 inside and the profit setting chamber 31 be located at bottom oil and water seperator 3, exhaust gas entrance 32 is positioned at above profit setting chamber 31, is provided with sewage draining exit 311 bottom profit setting chamber 31; Ventilation bellows 12 is provided with between exhaust gas entrance 32 and ventilated port 11; Crankcase waste gas obtains burning mixture successively after ventilation bellows 12, oil and water seperator 3, and burning mixture enters charge combustion system through air filtering core 21.
Crankcase waste gas is delivered to by ventilation bellows 12 in the process of oil and water seperator 2 by the present embodiment, after the adhesion and condensation device 33 condensation of ventilation bellows 12, water vapour in filtering waste gas and used oil steam, condensed water and used oil flow into for 3 times bottom profit setting chamber 31 along oil and water seperator and discharge through sewage draining exit 311, thus obtain burning mixture.Clean burning mixture is delivered in charge combustion system by the air outlet 22 through air-strainer 2 after air filtering core 21.The burning mixture entering charge combustion system after waste gas treatment of the present invention is clean, dry, be attached on closure 5 and intake manifold wall 4 after the waste gas avoided containing used oil and water enters charge combustion system and form mucous membrane, also be bonded to regard to the air avoided containing dust phenomenon mucous membrane being formed more and more thicker greasy filth, it also avoid used oil steam to run into the intake valve 13 of high temperature and firing chamber and exhaust gas purification system cracking and form hard carbon distribution simultaneously, the charge combustion system of motor and exhaust gas purification system is made to keep clean for a long time, improve the sensitivity of air inlet pressure sensor 41 and lambda sensor, ensure that the normal combustion of fuel in combustion chamber, reduce engine power deficiency, oil consumption increases, exhaust emissions exceeds standard, the probability that maintenance cost increases.
Embodiment 2: in order to ensure that the inflammable mixture entering intake manifold 4 is clean, dry, or do not polluted by the dust laden air entered from air inlet 23, the basis of above-mentioned enforcement 1 increases technical characteristics: the gas through inflammable mixture outlet 34 enters intake manifold 4 after air filtering core 21 filters.Further ensure the cleaning of the burning mixture entered in charge combustion system, drying.
If after closure place sludge formation, due to the mechanical switch of closure 5, just greasy filth step is defined in the outer rim of closure 5, when low vehicle speeds, because closure 5 aperture is few, air inlet is by the obstruction of greasy filth step, air inflow and closure 5 aperture are not matched, causes deficiency of air, and cause inflammable mixture overrich, so burning will be insufficient, causes noxious gas emission sharply to increase, oil consumption increase, unstable idle speed are flame-out.Owing to lacking oxygen in headstock waste gas, itself can not burn, the heat of adding the machine oil burning in waste gas can not be utilized, and also needs oxygen consumption, adds water fire-retardant in waste gas, have impact on the burning of normal fuel on the contrary, so the machine oil in waste gas, moisture are discharged and not only prevent the formation of carbon deposit, also make inflammable mixture in waste gas can Thorough combustion, so power increases, fuel saving, the present embodiment be able to head it off.
Embodiment 3: with above-described embodiment unlike, the length range of the bellows that ventilates in the present embodiment is 50-80cm; And ventilation bellows 12 self-ventilation mouth 11 prolongs crankcase waste gas flows out direction and to be inclined upwardly setting.In the process that waste gas flows in bellows, comparatively stable machine oil gas can be attached in bellows and become machine oil liquid, bellows is adopted to add the area with exhaust gas contact as ventilation bellows, and waste gas in the flowing of bellows due to the effect of bellows given shape, define a lot of air and revolve nest, the good results are evident to make to isolate machine oil liquid from waste gas.Be back in crankcase to enable isolated machine oil liquid, embodiment defines ventilation bellows 12 self-ventilation mouth 11 to prolong crankcase waste gas and flow out direction and to be inclined upwardly setting, namely make the position of ventilated port 11 slightly low, in mode of execution concrete again, there is the bellows height of 3/4ths length higher than ventilated port 11, make machine oil liquid flow back in crankcase, reduce the loss of machine oil.
Embodiment defines the length of ventilation bellows at 50cm-80cm, because only in the best results of the ventilation bellows separated oil of more than 50cm, and the ventilation bellows of below 50cm is due to less with the area of contact of waste gas, the effect of separated oil is bad, the vehicle that particularly old car, these gas blowbies of American-European car system are comparatively serious; Through experiment, the ventilation bellows machine oil separation rate using 50cm-80cm during new car is about 70%, and old car or the serious American-European car system separation rate of gas blowby are about 50%, and remaining part can be separated totally through profit setting chamber substantially, discharge through sewage draining exit, environmental pollution is less.
Above-mentioned mode of execution is intended to illustrate that the present invention can be realized by professional and technical personnel in the field or use; carrying out routine amendment to above-mentioned mode of execution will be apparent for a person skilled in the art; therefore the present invention includes but be not limited to above-mentioned mode of execution; any description meeting present specification; meet and the same or analogous method of principle disclosed herein, technique, product, all fall within protection scope of the present invention.
Claims (3)
1. a crankcase waste gas processing system, it is characterized in that, comprise crankcase valve chamber cover, be located at ventilated port, air-strainer that described crankcase cyclinder head cover covers, be located at the air filtering core in described air-strainer and be located at the oil and water seperator of air filter bottom section; Described oil and water seperator comprises exhaust gas entrance, inflammable mixture outlet, the condensation device being located at described oil and water seperator inside and the profit setting chamber be located at bottom described oil and water seperator, described exhaust gas entrance is positioned at above described profit setting chamber, is provided with sewage draining exit bottom described profit setting chamber; Ventilation bellows is provided with between described exhaust gas entrance and described ventilated port; Crankcase waste gas obtains burning mixture successively after described ventilation bellows, described oil and water seperator, and burning mixture enters charge combustion system through described air filtering core.
2. a kind of crankcase waste gas processing system according to claim 1, is characterized in that, the length range of described ventilation bellows is 50-80cm.
3. a kind of crankcase waste gas processing system according to claim 1, is characterized in that, described ventilation bellows prolongs crankcase waste gas from described ventilated port and flows out direction and to be inclined upwardly setting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859565.XA CN105464747B (en) | 2015-11-26 | 2015-11-26 | A kind of crankcase waste gas processing system |
| PCT/CN2016/078802 WO2017088343A1 (en) | 2015-11-26 | 2016-04-08 | Waste gas treatment system for crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859565.XA CN105464747B (en) | 2015-11-26 | 2015-11-26 | A kind of crankcase waste gas processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464747A true CN105464747A (en) | 2016-04-06 |
| CN105464747B CN105464747B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510859565.XA Active CN105464747B (en) | 2015-11-26 | 2015-11-26 | A kind of crankcase waste gas processing system |
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| CN (1) | CN105464747B (en) |
| WO (1) | WO2017088343A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909341A (en) * | 2016-06-12 | 2016-08-31 | 潍柴动力股份有限公司 | Oil-gas separator with dewatering function |
| WO2017088343A1 (en) * | 2015-11-26 | 2017-06-01 | 王永勤 | Waste gas treatment system for crankcase |
| CN109312647A (en) * | 2016-06-01 | 2019-02-05 | 沃尔沃卡车集团 | Crankcase ventilation system for internal combustion engine |
| 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 |
| CN115111025A (en) * | 2022-08-30 | 2022-09-27 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110180265A (en) * | 2019-05-17 | 2019-08-30 | 江苏纵湖涂装设备产业研究院有限公司 | A kind of oil-water separator for powder coating equipment |
| CN110219717B (en) * | 2019-06-30 | 2024-06-07 | 佛山市晴宇环保科技有限公司 | Electric control emission reduction fuel-saving system device for vehicle |
| US10927729B1 (en) | 2019-09-24 | 2021-02-23 | Fca Us Llc | Pre-condensing PCV system |
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| CN101782007B (en) * | 2010-02-26 | 2012-06-13 | 重庆长安汽车股份有限公司 | Oil-water-gas separating device of hydrogen engine crankcase ventilating system |
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| DE102012014474A1 (en) * | 2012-07-21 | 2014-01-23 | Daimler Ag | Centrifugal separator device for filtering blow-by gas in crank case ventilation device in motor car, has plate separator for filtering fluid, and monitoring and diagnostic apparatus for monitoring or diagnosing operability of separator |
| US8992667B2 (en) * | 2012-08-16 | 2015-03-31 | Cummins Filtration Ip, Inc. | Systems and methods for closed crankcase ventilation and air filtration |
| CN203559961U (en) * | 2013-11-05 | 2014-04-23 | 中国第一汽车股份有限公司 | Air filter integrating oil-gas separation structure |
| CN105464747B (en) * | 2015-11-26 | 2017-12-12 | 王永勤 | A kind of crankcase waste gas processing system |
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- 2015-11-26 CN CN201510859565.XA patent/CN105464747B/en active Active
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2016
- 2016-04-08 WO PCT/CN2016/078802 patent/WO2017088343A1/en active Application Filing
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| CN2823564Y (en) * | 2005-08-09 | 2006-10-04 | 比亚迪股份有限公司 | Forced ventilator for crankcase of automobile engine |
| CN201043481Y (en) * | 2007-06-15 | 2008-04-02 | 重庆隆鑫工业（集团）有限公司 | Waste gas treating device for crankcase of general petrol engine |
| CN203374365U (en) * | 2013-03-29 | 2014-01-01 | 王永勤 | Apparatus resolving carbon deposition generated by automobile air inlet combustion system |
| CN204610073U (en) * | 2015-04-28 | 2015-09-02 | 湖南南方安美消防设备有限公司 | A kind of diesel engine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088343A1 (en) * | 2015-11-26 | 2017-06-01 | 王永勤 | Waste gas treatment system for crankcase |
| CN109312647A (en) * | 2016-06-01 | 2019-02-05 | 沃尔沃卡车集团 | Crankcase ventilation system for internal combustion engine |
| CN105909341A (en) * | 2016-06-12 | 2016-08-31 | 潍柴动力股份有限公司 | Oil-gas separator with dewatering function |
| CN105909341B (en) * | 2016-06-12 | 2018-11-16 | 潍柴动力股份有限公司 | A kind of gs-oil separator having water removal function |
| 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 |
| CN114251153B (en) * | 2020-09-24 | 2023-03-10 | 北京汽车动力总成有限公司 | Bent pipeline structure and vehicle |
| CN115111025A (en) * | 2022-08-30 | 2022-09-27 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
| CN115111025B (en) * | 2022-08-30 | 2022-12-13 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464747B (en) | 2017-12-12 |
| WO2017088343A1 (en) | 2017-06-01 |
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Effective date of registration: 20210401 Address after: Room 4471, building 1, 63 liantai Road, Baoshan District, Shanghai 201900 Patentee after: Shanghai Fanzhong Biotechnology Co.,Ltd. Address before: 265400 unit 121, building 5, East Kuixing Road, Nanlu, Zhaoyuan, Yantai City, Shandong Province Patentee before: Wang Yongqin |
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