WO2009008427A1 - Breather device for engine - Google Patents

Breather device for engine Download PDF

Info

Publication number
WO2009008427A1
WO2009008427A1 PCT/JP2008/062336 JP2008062336W WO2009008427A1 WO 2009008427 A1 WO2009008427 A1 WO 2009008427A1 JP 2008062336 W JP2008062336 W JP 2008062336W WO 2009008427 A1 WO2009008427 A1 WO 2009008427A1
Authority
WO
WIPO (PCT)
Prior art keywords
breather chamber
blow
head cover
breather
gap
Prior art date
Application number
PCT/JP2008/062336
Other languages
French (fr)
Japanese (ja)
Inventor
Hirotsugu Kudo
Kazushige Iwasaki
Original Assignee
Honda Motor Co., Ltd.
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 Honda Motor Co., Ltd. filed Critical Honda Motor Co., Ltd.
Priority to CN200880020489A priority Critical patent/CN101680320A/en
Priority to EP08790973A priority patent/EP2163738A4/en
Publication of WO2009008427A1 publication Critical patent/WO2009008427A1/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
    • F01M13/02—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
    • 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
    • F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
    • 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
    • F01M2013/0455—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a de-icing or defrosting system
    • 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
    • F01M2013/0472—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using heating means

Abstract

A breather device for an engine, in which a predetermined gap (α) is formed between an outer surface of a breather chamber (26) placed inside the head cover (13) and an inner surface of a head cover (13). The gap (α) functions as a heat insulation space even if outdoor air temperature drops, and this prevents freezing of blow-by gas in the breather chamber (26). In addition, a blow-by gas entrance (30) formed in a wall surface of the breather chamber (26) is opened at a position facing the inner surface of the head cover (13). This not only enhances the degree of positioning freedom for the blow-by gas entrance (30) to a levelhigher than that of a case where the blow-by gas entrance (30) is opened at a lower surface of the breather chamber (26) but also allows the gap (α) between the breather chamber (26) and the head cover (13) to exhibit a good oil separation effect, preventing the entry of oil into the breather chamber (26).
PCT/JP2008/062336 2007-07-09 2008-07-08 Breather device for engine WO2009008427A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880020489A CN101680320A (en) 2007-07-09 2008-07-08 Breather device for engine
EP08790973A EP2163738A4 (en) 2007-07-09 2008-07-08 Breather device for engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-179244 2007-07-09
JP2007179244A JP2009013941A (en) 2007-07-09 2007-07-09 Breather device of engine

Publications (1)

Publication Number Publication Date
WO2009008427A1 true WO2009008427A1 (en) 2009-01-15

Family

ID=40228597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062336 WO2009008427A1 (en) 2007-07-09 2008-07-08 Breather device for engine

Country Status (4)

Country Link
EP (1) EP2163738A4 (en)
JP (1) JP2009013941A (en)
CN (1) CN101680320A (en)
WO (1) WO2009008427A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014080788A1 (en) * 2012-11-22 2014-05-30 アイシン精機株式会社 Oil separator

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009057528A1 (en) * 2009-12-08 2011-06-09 Man Truck & Bus Ag Cylinder head cover for internal combustion engine
JP5495402B2 (en) * 2012-11-22 2014-05-21 アイシン精機株式会社 Oil separator
JP2014013012A (en) * 2012-07-04 2014-01-23 Aisin Seiki Co Ltd Oil separator
CN104520546B (en) * 2012-07-04 2017-09-01 爱信精机株式会社 Oil eliminator
FR3018555A1 (en) * 2014-03-11 2015-09-18 Peugeot Citroen Automobiles Sa MOTOR VEHICLE COMBUSTION ENGINE WITH LOW DIMENSIONS
JP6442388B2 (en) * 2015-09-30 2018-12-19 株式会社クボタ Engine breather equipment
JP6450295B2 (en) * 2015-09-30 2019-01-09 株式会社クボタ Engine breather equipment
JP6442387B2 (en) * 2015-09-30 2018-12-19 株式会社クボタ Engine breather equipment
JP2019157688A (en) 2018-03-09 2019-09-19 本田技研工業株式会社 Internal combustion engine
US10683784B2 (en) 2018-11-20 2020-06-16 Honda Motor Co., Ltd. Oil mist separator
JP7221702B2 (en) * 2019-01-11 2023-02-14 株式会社クボタ Blow-by gas reflux device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61204908U (en) * 1985-06-12 1986-12-24
JPH05171916A (en) * 1991-12-24 1993-07-09 Mazda Motor Corp Oil separator of positive crank case ventilation
JPH06288219A (en) * 1993-03-31 1994-10-11 Suzuki Motor Corp Breather device
JP2006022700A (en) * 2004-07-07 2006-01-26 Toyota Motor Corp Blow-by gas reducing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167906U (en) * 1983-04-26 1984-11-10 愛知機械工業株式会社 Oil separation device for internal combustion engine rocker cover
JPH0625623Y2 (en) * 1986-05-30 1994-07-06 いすゞ自動車株式会社 Cylinder head cover
JPH064015Y2 (en) * 1986-07-07 1994-02-02 いすゞ自動車株式会社 Cylinder head cover structure
US6443136B1 (en) * 2000-10-25 2002-09-03 Honda Giken Kogyo Kabushiki Kaisha Breather apparatus for an internal combustion engine
JP2007285261A (en) * 2006-04-19 2007-11-01 Toyota Industries Corp Blow-by treatment device for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61204908U (en) * 1985-06-12 1986-12-24
JPH05171916A (en) * 1991-12-24 1993-07-09 Mazda Motor Corp Oil separator of positive crank case ventilation
JPH06288219A (en) * 1993-03-31 1994-10-11 Suzuki Motor Corp Breather device
JP2006022700A (en) * 2004-07-07 2006-01-26 Toyota Motor Corp Blow-by gas reducing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2163738A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014080788A1 (en) * 2012-11-22 2014-05-30 アイシン精機株式会社 Oil separator
JP2014105582A (en) * 2012-11-22 2014-06-09 Aisin Seiki Co Ltd Oil separator

Also Published As

Publication number Publication date
EP2163738A1 (en) 2010-03-17
CN101680320A (en) 2010-03-24
EP2163738A4 (en) 2010-08-04
JP2009013941A (en) 2009-01-22

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