GB2312019A - A breather system for an internal combustion engine - Google Patents

A breather system for an internal combustion engine

Info

Publication number
GB2312019A
GB2312019A GB9712101A GB9712101A GB2312019A GB 2312019 A GB2312019 A GB 2312019A GB 9712101 A GB9712101 A GB 9712101A GB 9712101 A GB9712101 A GB 9712101A GB 2312019 A GB2312019 A GB 2312019A
Authority
GB
United Kingdom
Prior art keywords
breather
combustion engine
internal combustion
guard member
camshaft
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
GB9712101A
Other versions
GB9712101D0 (en
GB2312019B (en
Inventor
William Richard Hutchins
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.)
MG Rover Group Ltd
Original Assignee
MG Rover Group 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
Priority claimed from GBGB9501713.3A external-priority patent/GB9501713D0/en
Application filed by MG Rover Group Ltd filed Critical MG Rover Group Ltd
Priority to GB9712101A priority Critical patent/GB2312019B/en
Publication of GB9712101D0 publication Critical patent/GB9712101D0/en
Publication of GB2312019A publication Critical patent/GB2312019A/en
Application granted granted Critical
Publication of GB2312019B publication Critical patent/GB2312019B/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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]

Landscapes

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

Abstract

An internal combustion engine has a cylinder head assembly with a camshaft (28) mounted therein and breather passages (70) through it. A guard member (38) is mounted on the head casting (12) and includes guards (40) over the cams (42), side walls (39) and a bearing ladder for the camshaft. A gasket (46) between the guard member (38) and a cover (44) forms, with the guard member (38), a separation region (50) having an inlet (72) fed by the breather passages and outlets (51) in the form of holes through the gasket (46). The gas that can flow from the breather passages to the outlets (51) is slow and substantially horizontal so that oil can separate out of the gas. The guards (40) prevent oil from the cams (42) from mixing with the breather gases.
GB9712101A 1995-01-28 1995-12-19 A breather system for an internal combustion engine Expired - Fee Related GB2312019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9712101A GB2312019B (en) 1995-01-28 1995-12-19 A breather system for an internal combustion engine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9501713.3A GB9501713D0 (en) 1995-01-28 1995-01-28 A breather system for an internal combustion engine
PCT/GB1995/002966 WO1996023132A1 (en) 1995-01-28 1995-12-19 A breather system for an internal combustion engine
GB9712101A GB2312019B (en) 1995-01-28 1995-12-19 A breather system for an internal combustion engine

Publications (3)

Publication Number Publication Date
GB9712101D0 GB9712101D0 (en) 1997-08-13
GB2312019A true GB2312019A (en) 1997-10-15
GB2312019B GB2312019B (en) 1998-09-09

Family

ID=26306390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9712101A Expired - Fee Related GB2312019B (en) 1995-01-28 1995-12-19 A breather system for an internal combustion engine

Country Status (1)

Country Link
GB (1) GB2312019B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086832A (en) * 1973-12-10 1975-07-12
JPS60173631A (en) * 1984-02-17 1985-09-07 Fujitsu Ltd Control program switching system
JPS60212941A (en) * 1984-04-06 1985-10-25 Hitachi Ltd Monochromatic cathode-ray tube for display
US4597372A (en) * 1984-09-26 1986-07-01 Toyota Jidosha Kabushiki Kaisha Oil separator for blowby gas
EP0448431A1 (en) * 1990-03-22 1991-09-25 Automobiles Peugeot Intake device and oil separator for an internal combustion engine and engine provided with this device
JPH0412109A (en) * 1990-04-27 1992-01-16 Suzuki Motor Corp Engine oil supply port structure for internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086832A (en) * 1973-12-10 1975-07-12
JPS60173631A (en) * 1984-02-17 1985-09-07 Fujitsu Ltd Control program switching system
JPS60212941A (en) * 1984-04-06 1985-10-25 Hitachi Ltd Monochromatic cathode-ray tube for display
US4597372A (en) * 1984-09-26 1986-07-01 Toyota Jidosha Kabushiki Kaisha Oil separator for blowby gas
EP0448431A1 (en) * 1990-03-22 1991-09-25 Automobiles Peugeot Intake device and oil separator for an internal combustion engine and engine provided with this device
JPH0412109A (en) * 1990-04-27 1992-01-16 Suzuki Motor Corp Engine oil supply port structure for internal combustion engine

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan vol.016 no.161 (M-1237) *
Patent Abstracts of Japan vol.017 no.423 (M-1458) *
Patent Abstracts of Japan vol.018 no.512 (M-1679) *
Patent Abstracts of Japan vol.018 no.579 (M-1698) *

Also Published As

Publication number Publication date
GB9712101D0 (en) 1997-08-13
GB2312019B (en) 1998-09-09

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20050713

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091219