WO2008108396A1 - Blow-by gas reduction device and internal combustion engine with the blow-by gas reduction device - Google Patents

Blow-by gas reduction device and internal combustion engine with the blow-by gas reduction device Download PDF

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Publication number
WO2008108396A1
WO2008108396A1 PCT/JP2008/053930 JP2008053930W WO2008108396A1 WO 2008108396 A1 WO2008108396 A1 WO 2008108396A1 JP 2008053930 W JP2008053930 W JP 2008053930W WO 2008108396 A1 WO2008108396 A1 WO 2008108396A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
blow
reduction device
gas reduction
combustion engine
Prior art date
Application number
PCT/JP2008/053930
Other languages
French (fr)
Japanese (ja)
Inventor
Jun Ikeda
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2008108396A1 publication Critical patent/WO2008108396A1/en

Links

Classifications

    • 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
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • F01M2013/0477—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil by separating water or moisture
    • 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
    • F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase

Abstract

A PCV valve (97) and an oil trap (98) that recovers oil that can not be removed by an oil separator (92), which separates and removes oil mist in blow-by gas, are arranged on the downstream side of the oil separator (92). A blow-by gas flow path leading from the oil separator (92) to the oil trap (98) is positioned inside a cam chamber (3A) of an engine (10). The above construction suppresses occurrence of condensation water in the flow path and prevents presence, in the entire region from a PCV device (9) to the intake system of the engine (10), of a region where conditions (NOx, oil, acid water) producing sludge are complete. Also, the amount of introduction of oil into the intake system is significantly reduced to avoid occurrence of intake deposit.
PCT/JP2008/053930 2007-03-05 2008-03-05 Blow-by gas reduction device and internal combustion engine with the blow-by gas reduction device WO2008108396A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-054203 2007-03-05
JP2007054203A JP2008215214A (en) 2007-03-05 2007-03-05 Blow-by gas reducing device and internal combustion engine equipped therewith

Publications (1)

Publication Number Publication Date
WO2008108396A1 true WO2008108396A1 (en) 2008-09-12

Family

ID=39738269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/053930 WO2008108396A1 (en) 2007-03-05 2008-03-05 Blow-by gas reduction device and internal combustion engine with the blow-by gas reduction device

Country Status (2)

Country Link
JP (1) JP2008215214A (en)
WO (1) WO2008108396A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8544439B2 (en) 2011-06-21 2013-10-01 Mann & Hummel Gmbh Air intake tract having a flexible sump
CN109113833A (en) * 2018-09-26 2019-01-01 绵阳新晨动力机械有限公司 A kind of two-chamber independence gs-oil separator
CN112012809A (en) * 2019-05-30 2020-12-01 丰田自动车株式会社 Blow-by gas delivery abnormality detection device for internal combustion engine
CN115419481A (en) * 2022-07-29 2022-12-02 东风柳州汽车有限公司 Crankcase ventilation system air supplement unit

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5671818B2 (en) * 2010-03-10 2015-02-18 スズキ株式会社 Engine breather room layout structure
JP5478436B2 (en) * 2010-09-10 2014-04-23 株式会社クボタ Engine blow-by gas recirculation system
KR101253436B1 (en) * 2011-10-06 2013-04-11 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 Blow-by gas recirculation apparatus with a bulit-in integrated gas control module
JP2013253524A (en) * 2012-06-06 2013-12-19 Toyota Motor Corp Mounting structure of cam angle sensor for internal combustion engine
JP6027433B2 (en) * 2012-12-25 2016-11-16 日野自動車株式会社 Closed breather system
WO2015068398A1 (en) * 2013-11-08 2015-05-14 本田技研工業株式会社 Oil separation device of internal combustion engine
JP6167072B2 (en) * 2014-07-24 2017-07-19 本田技研工業株式会社 Oil separation device for internal combustion engine
JP6010011B2 (en) * 2013-11-08 2016-10-19 本田技研工業株式会社 Breather system for internal combustion engines
US20180171946A1 (en) * 2015-08-26 2018-06-21 Yanmar Co., Ltd. Engine device
JP2017044144A (en) * 2015-08-26 2017-03-02 ヤンマー株式会社 Engine device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392514U (en) * 1989-12-30 1991-09-20
JPH0658132A (en) * 1990-11-01 1994-03-01 Ventures Unlimted Inc Filter device for reducing noxious discharged article from crankcase in internal combustion engine
JPH09137710A (en) * 1995-11-14 1997-05-27 Nissan Motor Co Ltd Blowby gas ventilation device for engine
JP2000008828A (en) * 1998-04-21 2000-01-11 Nippon Soken Inc Blowby gas reducing device
JP2003293725A (en) * 2002-03-29 2003-10-15 Honda Motor Co Ltd Pcv device for internal combustion engine
JP2005121008A (en) * 2003-08-29 2005-05-12 Honda Motor Co Ltd Blowby gas ventilation system for internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392514U (en) * 1989-12-30 1991-09-20
JPH0658132A (en) * 1990-11-01 1994-03-01 Ventures Unlimted Inc Filter device for reducing noxious discharged article from crankcase in internal combustion engine
JPH09137710A (en) * 1995-11-14 1997-05-27 Nissan Motor Co Ltd Blowby gas ventilation device for engine
JP2000008828A (en) * 1998-04-21 2000-01-11 Nippon Soken Inc Blowby gas reducing device
JP2003293725A (en) * 2002-03-29 2003-10-15 Honda Motor Co Ltd Pcv device for internal combustion engine
JP2005121008A (en) * 2003-08-29 2005-05-12 Honda Motor Co Ltd Blowby gas ventilation system for internal combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8544439B2 (en) 2011-06-21 2013-10-01 Mann & Hummel Gmbh Air intake tract having a flexible sump
CN109113833A (en) * 2018-09-26 2019-01-01 绵阳新晨动力机械有限公司 A kind of two-chamber independence gs-oil separator
CN109113833B (en) * 2018-09-26 2024-02-13 绵阳新晨动力机械有限公司 Dual-cavity independent oil-gas separator
CN112012809A (en) * 2019-05-30 2020-12-01 丰田自动车株式会社 Blow-by gas delivery abnormality detection device for internal combustion engine
CN112012809B (en) * 2019-05-30 2022-06-07 丰田自动车株式会社 Blow-by gas delivery abnormality detection device for internal combustion engine
CN115419481A (en) * 2022-07-29 2022-12-02 东风柳州汽车有限公司 Crankcase ventilation system air supplement unit
CN115419481B (en) * 2022-07-29 2023-07-25 东风柳州汽车有限公司 Air supplementing device of crankcase ventilation system

Also Published As

Publication number Publication date
JP2008215214A (en) 2008-09-18

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