GB1476357A - Valve gear for internal combustion engines - Google Patents

Valve gear for internal combustion engines

Info

Publication number
GB1476357A
GB1476357A GB2578474A GB2578474A GB1476357A GB 1476357 A GB1476357 A GB 1476357A GB 2578474 A GB2578474 A GB 2578474A GB 2578474 A GB2578474 A GB 2578474A GB 1476357 A GB1476357 A GB 1476357A
Authority
GB
United Kingdom
Prior art keywords
pillar
cam
valve
engine
usual
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.)
Expired
Application number
GB2578474A
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of GB1476357A publication Critical patent/GB1476357A/en
Expired 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/105—Lubrication of valve gear or auxiliaries using distribution conduits

Landscapes

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

Abstract

1476357 Valve gears for IC engine EATON CORP 11 June 1974 [18 June 1973] 25784/74 Heading F1B [Also in Division F2] In an hydraulic automatic back-lash adjuster pillar 40, the usual engine oil pressure feed thereto is replaced by a simple gravity feed. The back-lash adjuster pillar 40 provides zero-lash for an overhead cam-shaft I.C. engine valve operating mechanism of the type in which a rocker arm 20 has one end 23 pivotally mounted on a plunger 42 extending from the adjuster pillar 40, the other end 25 engaging a valve stem 10, and a portion 21 of its upper surface between its ends engaging a cam 31. Engine oil is pressure-fed from a central cam-shaft duct 33 and radial port 34 to outwardly spray onto a collecting shield 3 from the end of which it gravity drips via a rocker arm aperture 24 into a central reservoir 44, 45a, 46 of the adjuster pillar 40, the usual one-way spring-loaded ball-valve 48 separating the reservoir from the usual oil-filled plunger support cavity 41c which maintains the position of the plunger 42 for correct lash adjustment. Additionally, the end of the rocker arm 20 may be formed with a deflecting shield 26 to also collect oil spray from the cam-shaft and direct it via the aperture 24 to the central reservoir in the pillar 40. The arrangement is said to reduce the load applied to the cam-shaft via the gravity-fed pillar 40, as compared with the usual pressure-fed pillar, whereby lighter engine valve springs may be used to lower the valve gear dynamic forces at high engine speeds.
GB2578474A 1973-06-18 1974-06-11 Valve gear for internal combustion engines Expired GB1476357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US370881A US3875908A (en) 1973-06-18 1973-06-18 Valve gear and lash adjuster for same

Publications (1)

Publication Number Publication Date
GB1476357A true GB1476357A (en) 1977-06-10

Family

ID=23461577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2578474A Expired GB1476357A (en) 1973-06-18 1974-06-11 Valve gear for internal combustion engines

Country Status (5)

Country Link
US (1) US3875908A (en)
BR (1) BR7404992D0 (en)
CA (1) CA1018032A (en)
DE (1) DE2428951A1 (en)
GB (1) GB1476357A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463714A (en) * 1981-10-08 1984-08-07 Nissan Motor Company, Limited Hydraulic lifter
US5287830A (en) * 1990-02-16 1994-02-22 Group Lotus Valve control means
US5351662A (en) * 1990-02-16 1994-10-04 Group Lotus Plc Valve control means
US5386806A (en) * 1990-02-16 1995-02-07 Group Lotus Limited Cam mechanisms

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416910B2 (en) * 1974-04-06 1977-08-04 Daimler Benz Ag, 7000 Stuttgart ACTUATING DEVICE FOR THE WORK MEDIA VALVES ON A PISTON MACHINE WITH HYDRAULIC VALVE CLEARANCE COMPENSATING ELEMENTS
US4098240A (en) * 1975-02-18 1978-07-04 Eaton Corporation Valve gear and lash adjustment means for same
FR2329847A1 (en) * 1975-10-31 1977-05-27 Moteur Moderne Le VALVE CONTROL DEVICE, ESPECIALLY IN A MOTOR WITH OVERHEAD CAMSHAFT
JPS5321318A (en) * 1976-08-10 1978-02-27 Toyota Motor Corp Auto-adjusting type hydraulic locker arm
US4359018A (en) * 1979-03-29 1982-11-16 General Motors Corporation Engine camshaft and piston lubrication
SE443021B (en) * 1979-09-03 1986-02-10 Yanmar Diesel Engine Co FORBRENNINGSMOTOR
DE3101305A1 (en) * 1980-01-28 1981-11-19 Aisin Seiki K.K., Kariya, Aichi HYDRAULIC SUPPORT DEVICE FOR A LEVER BEARING OF A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
US4430783A (en) * 1980-03-27 1984-02-14 Toledo Stamping & Manufacturing Company Method of making a rocker arm
US4346678A (en) * 1980-03-27 1982-08-31 Toledo Stamping & Manufacturing Company Rocker arm and method of making same
JPS57163141A (en) * 1981-03-31 1982-10-07 Yamaha Motor Co Ltd Cylinder head clamping structure in internal- combustion engine
JPS585416A (en) * 1981-06-30 1983-01-12 Toyota Motor Corp Oil supply device for rush adjusters
DE3203791A1 (en) * 1982-02-04 1983-08-11 Volkswagenwerk Ag, 3180 Wolfsburg VALVE DRIVE, ESPECIALLY FOR A MOTOR VEHICLE INTERNAL COMBUSTION ENGINE
US4527462A (en) * 1983-04-08 1985-07-09 Aisin Seiki Kabushiki Kaisha Sealed-type automatic tensioner
US4592314A (en) * 1985-04-18 1986-06-03 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
US4784095A (en) * 1987-12-15 1988-11-15 Crane Cams, Incorporated Rocker arm adjusting nut
US4896634A (en) * 1989-06-05 1990-01-30 Tecumseh Products Company Phase timed camshaft spray lubrication system
DE3941833C1 (en) * 1989-12-19 1991-01-17 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine camshaft lubrication system - incorporates vanes to collect oil slung off shaft and cams
US5007388A (en) * 1990-04-23 1991-04-16 Briggs & Stratton Corporation Hydraulic valve lifter
DE4137561A1 (en) * 1991-11-15 1993-05-19 Audi Ag Cylinder head for IC engine - has oil catchment device which for each cam on camshaft has first catchment wall limiting with surrounding channel wall an oil feed channel
US5492086A (en) * 1994-09-15 1996-02-20 Durox Company, Inc. Valve cover
DE4442057B4 (en) * 1994-11-25 2005-07-28 Ina-Schaeffler Kg Hydraulic lash adjuster
US5671707A (en) * 1996-02-28 1997-09-30 Cummins Engine Company, Inc. Rocker level oil shroud
FR2746846B1 (en) * 1996-03-29 1998-05-07 Renault LUBRICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
DE19640919A1 (en) * 1996-10-04 1998-04-09 Schaeffler Waelzlager Ohg Valve rocker used in internal combustion engine
US5862785A (en) * 1998-01-26 1999-01-26 Eaton Corporation Hydraulic lash adjuster and improved oil flow path therefor
US7047925B2 (en) * 2004-03-03 2006-05-23 Delphi Technologies, Inc. Dual feed hydraulic lash adjuster
DE102004018386A1 (en) * 2004-04-16 2005-11-03 Ina-Schaeffler Kg Method for adjusting the ball stroke of a valve lash adjuster
DE102005021113A1 (en) * 2005-05-06 2006-11-09 Daimlerchrysler Ag Gas exchange valve actuating device
US7845316B2 (en) * 2007-07-06 2010-12-07 Brp-Powertrain Gmbh & Co Kg Internal combustion engine cooling system
US9157340B2 (en) 2013-03-25 2015-10-13 GT Technologies Dual feed hydraulic lash adjuster for valve actuating mechanism
US20150059678A1 (en) * 2013-09-03 2015-03-05 Delphi Technologies, Inc. Cylinder head assembly with oil reflector for lubrication of a rocker arm
CN107044310A (en) * 2017-03-24 2017-08-15 中国北方发动机研究所(天津) A kind of lubrication system of engine rocker
GB2578338B (en) * 2019-03-07 2020-12-09 Cox Powertrain Ltd Marine outboard motor with valve train having adjustable lash
CN117139190B (en) * 2023-10-30 2024-01-23 江苏国瓷金盛陶瓷科技有限公司 Alumina ceramic ball measuring device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1136219A (en) * 1914-08-26 1915-04-20 Chalmers Motor Company Lubricating system for explosion-engines.
US1363398A (en) * 1919-01-04 1920-12-28 William C Davids Engine-valve
US1792836A (en) * 1928-03-01 1931-02-17 Gen Motors Res Corp Hydraulic valve mechanism
US2815012A (en) * 1955-05-03 1957-12-03 Thompson Prod Inc Automatic lash adjuster
US3153404A (en) * 1963-12-30 1964-10-20 Gen Motors Corp Hydraulic lash adjuster
US3352293A (en) * 1965-07-28 1967-11-14 Gen Motors Corp Camshaft construction
US3502058A (en) * 1966-02-24 1970-03-24 Earl A Thompson Rocker arm

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463714A (en) * 1981-10-08 1984-08-07 Nissan Motor Company, Limited Hydraulic lifter
US5287830A (en) * 1990-02-16 1994-02-22 Group Lotus Valve control means
US5351662A (en) * 1990-02-16 1994-10-04 Group Lotus Plc Valve control means
US5386806A (en) * 1990-02-16 1995-02-07 Group Lotus Limited Cam mechanisms
US5419290A (en) * 1990-02-16 1995-05-30 Group Lotus Limited Cam mechanisms

Also Published As

Publication number Publication date
BR7404992D0 (en) 1975-01-07
US3875908A (en) 1975-04-08
DE2428951A1 (en) 1975-01-09
CA1018032A (en) 1977-09-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee