CA2444376A1 - Breather structure of overhead-valve internal combustion engine - Google Patents

Breather structure of overhead-valve internal combustion engine Download PDF

Info

Publication number
CA2444376A1
CA2444376A1 CA002444376A CA2444376A CA2444376A1 CA 2444376 A1 CA2444376 A1 CA 2444376A1 CA 002444376 A CA002444376 A CA 002444376A CA 2444376 A CA2444376 A CA 2444376A CA 2444376 A1 CA2444376 A1 CA 2444376A1
Authority
CA
Canada
Prior art keywords
chamber
breather
cylinder
crankcase
driving force
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
CA002444376A
Other languages
French (fr)
Other versions
CA2444376C (en
Inventor
Kinya Mizuno
Hideyuki Tawara
Yoshiaki Hori
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.)
Honda Motor Co Ltd
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
Publication of CA2444376A1 publication Critical patent/CA2444376A1/en
Application granted granted Critical
Publication of CA2444376C publication Critical patent/CA2444376C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01M13/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

In an overhead-valve internal combustion engine in which a driving force transmission chamber which houses a driving force transmission member for transmitting a rotational driving force of a crankshaft to a camshaft and is arranged at the side of a cylinder bore is formed in a crankcase, a cylinder block and a cylinder head, and a breather chamber which is arranged below a camshaft housing chamber which houses the camshaft and is formed between the cylinder head and the cylinder block and at the side of the cylinder bore and the driving force transmission chamber is formed between a cylinder and the crankcase, the discharge of oil from the breather chamber is performed smoothly so as to enhance the vapor-liquid separation performance. A breather inlet passage 68 which has an upper end thereof communicated with the inside of a camshaft housing chamber 30 and a lower end thereof communicated with a breather chamber 60 at a position corresponding to a mating face between a cylinder block 12 and a crankcase 11 is formed in the cylinder block 12 such that the breather inlet passage 68 extends vertically, and an oil discharge hole 74 which is communicated with a lower portion of the inside of the breather chamber 60 is formed in the crankcase 11.
CA002444376A 2002-10-09 2003-10-07 Breather structure of overhead-valve internal combustion engine Expired - Fee Related CA2444376C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002295952A JP3975150B2 (en) 2002-10-09 2002-10-09 Breather structure of overhead valve internal combustion engine
JP2002-295952 2002-10-09

Publications (2)

Publication Number Publication Date
CA2444376A1 true CA2444376A1 (en) 2004-04-09
CA2444376C CA2444376C (en) 2006-07-11

Family

ID=32286059

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002444376A Expired - Fee Related CA2444376C (en) 2002-10-09 2003-10-07 Breather structure of overhead-valve internal combustion engine

Country Status (6)

Country Link
US (1) US6834643B2 (en)
JP (1) JP3975150B2 (en)
BR (1) BR0304461B1 (en)
CA (1) CA2444376C (en)
MX (1) MXPA03008930A (en)
MY (1) MY141467A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004218453A (en) * 2003-01-09 2004-08-05 Suzuki Motor Corp Engine breather device
FR2856047B1 (en) * 2003-06-16 2005-07-15 Commissariat Energie Atomique METHOD FOR BONDING MICRO-STRUCTURED SUBSTRATES
KR100551288B1 (en) * 2003-11-04 2006-02-10 현대자동차주식회사 Crankcase with blowby gas and oil drain passages
JP4851887B2 (en) * 2006-08-29 2012-01-11 本田技研工業株式会社 Internal combustion engine
US7438065B2 (en) * 2006-08-16 2008-10-21 Fuji Jukogyo Kabushiki Kaisha Breather device in engine
JP4890322B2 (en) * 2007-03-30 2012-03-07 本田技研工業株式会社 Breather device for vertical engine
JP5215721B2 (en) * 2008-04-30 2013-06-19 川崎重工業株式会社 engine
US20100313860A1 (en) * 2009-06-15 2010-12-16 Gm Global Technology Operations, Inc. Apparatus for removal of oil from positive crankcase ventilation system
KR101490924B1 (en) * 2013-06-27 2015-02-06 현대자동차 주식회사 Timing belt system for vehicle
JP2015086769A (en) * 2013-10-30 2015-05-07 ヤマハ発動機株式会社 Engine and saddle-riding type vehicle equipped with the same
JP6117757B2 (en) * 2014-09-29 2017-04-19 本田技研工業株式会社 Breather chamber of internal combustion engine
JP6333787B2 (en) * 2015-09-25 2018-05-30 本田技研工業株式会社 Breather chamber structure of internal combustion engine
JP6844287B2 (en) * 2017-02-07 2021-03-17 スズキ株式会社 Lubrication structure of internal combustion engine
JP7093892B2 (en) * 2019-03-29 2022-06-30 本田技研工業株式会社 Internal combustion engine
CN109944711B (en) * 2019-04-29 2024-04-30 玉柴联合动力股份有限公司 Diesel engine cylinder block capable of achieving national six-standard oil-gas separation efficiency

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9501713D0 (en) * 1995-01-28 1995-03-15 Rover Group A breather system for an internal combustion engine
JP4311793B2 (en) * 1999-01-28 2009-08-12 本田技研工業株式会社 Overhead internal combustion engine
JP3840037B2 (en) * 2000-05-23 2006-11-01 富士重工業株式会社 Engine breather equipment
JP3965960B2 (en) * 2001-10-12 2007-08-29 スズキ株式会社 Breather equipment for motorcycles

Also Published As

Publication number Publication date
JP2004132214A (en) 2004-04-30
US20040149242A1 (en) 2004-08-05
BR0304461B1 (en) 2012-03-20
US6834643B2 (en) 2004-12-28
MY141467A (en) 2010-04-30
MXPA03008930A (en) 2006-04-24
CA2444376C (en) 2006-07-11
BR0304461A (en) 2004-08-31
JP3975150B2 (en) 2007-09-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20171010