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JPS57193708A - Breather for crankcase of four-cycle internal combustion engine - Google Patents

Breather for crankcase of four-cycle internal combustion engine

Info

Publication number
JPS57193708A
JPS57193708A JP7802581A JP7802581A JPS57193708A JP S57193708 A JPS57193708 A JP S57193708A JP 7802581 A JP7802581 A JP 7802581A JP 7802581 A JP7802581 A JP 7802581A JP S57193708 A JPS57193708 A JP S57193708A
Authority
JP
Japan
Prior art keywords
crankcase
gas
blow
communication hole
breather
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.)
Granted
Application number
JP7802581A
Other languages
Japanese (ja)
Other versions
JPH0116323B2 (en
Inventor
Yasuto Onizuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP7802581A priority Critical patent/JPS57193708A/en
Publication of JPS57193708A publication Critical patent/JPS57193708A/en
Publication of JPH0116323B2 publication Critical patent/JPH0116323B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To release gas to the outside without causing any trouble, prevent the internal pressure of a crankcase from abnormally rising, surely separate oil drops from the gas and return the oil to the crankcase. CONSTITUTION:When the internal pressure of a crankcase 4 is heightened, blow- by gas flows into a gear chamber 17 through the breather hole 22 of one partition wall 6a and the clearances of bearings 9a, 14a and so forth. The blow-by gas in the gear chamber 17 flows into the communication hole 21 of a balancing shaft 8 through the opening of the right-hand end face and then enters into a communication hole 25 at the other end of the balancing shaft 8 so that the blow-by gas is conducted into an air cleaner chamber. Oil drops in the communication hole 21 are discharged into the crankcase 4 through oil drop separation holes 24, 24 by centrifugal force.
JP7802581A 1981-05-25 1981-05-25 Breather for crankcase of four-cycle internal combustion engine Granted JPS57193708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7802581A JPS57193708A (en) 1981-05-25 1981-05-25 Breather for crankcase of four-cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7802581A JPS57193708A (en) 1981-05-25 1981-05-25 Breather for crankcase of four-cycle internal combustion engine

Publications (2)

Publication Number Publication Date
JPS57193708A true JPS57193708A (en) 1982-11-29
JPH0116323B2 JPH0116323B2 (en) 1989-03-23

Family

ID=13650264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7802581A Granted JPS57193708A (en) 1981-05-25 1981-05-25 Breather for crankcase of four-cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57193708A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245412A (en) * 1989-03-17 1990-10-01 Honda Motor Co Ltd Cylinder block of engine
WO2006102968A1 (en) * 2005-03-26 2006-10-05 Audi Ag Compensating shaft module
US7395800B2 (en) 2005-11-10 2008-07-08 Kawasaki Jukogyo Kabushiki Kaisha Four-cycle engine and motorcycle comprising four-cycle engine
EP2977573A1 (en) * 2014-07-24 2016-01-27 Fiat Group Automobiles S.p.A. An internal combustion engine with a double-stage separation blow-by gas recirculation system
JP2019124137A (en) * 2018-01-12 2019-07-25 トヨタ自動車株式会社 Internal combustion engine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245412A (en) * 1989-03-17 1990-10-01 Honda Motor Co Ltd Cylinder block of engine
WO2006102968A1 (en) * 2005-03-26 2006-10-05 Audi Ag Compensating shaft module
JP2008534833A (en) * 2005-03-26 2008-08-28 アウディー アーゲー Balance shaft module
US7632326B2 (en) 2005-03-26 2009-12-15 Audi Ag Compensating shaft module
JP4859914B2 (en) * 2005-03-26 2012-01-25 アウディー アーゲー Balance shaft module
US7395800B2 (en) 2005-11-10 2008-07-08 Kawasaki Jukogyo Kabushiki Kaisha Four-cycle engine and motorcycle comprising four-cycle engine
EP2977573A1 (en) * 2014-07-24 2016-01-27 Fiat Group Automobiles S.p.A. An internal combustion engine with a double-stage separation blow-by gas recirculation system
US9546580B2 (en) 2014-07-24 2017-01-17 Fiat Group Automobiles S.P.A. Internal combustion engine with a double-stage separation blow-by gas recirculation system
JP2019124137A (en) * 2018-01-12 2019-07-25 トヨタ自動車株式会社 Internal combustion engine

Also Published As

Publication number Publication date
JPH0116323B2 (en) 1989-03-23

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