GB1282850A - Valve operating gear in internal combustion engines - Google Patents

Valve operating gear in internal combustion engines

Info

Publication number
GB1282850A
GB1282850A GB24481/71A GB2448171A GB1282850A GB 1282850 A GB1282850 A GB 1282850A GB 24481/71 A GB24481/71 A GB 24481/71A GB 2448171 A GB2448171 A GB 2448171A GB 1282850 A GB1282850 A GB 1282850A
Authority
GB
United Kingdom
Prior art keywords
tappets
gear
push rods
casing
cam
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
GB24481/71A
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.)
Motorenfabrik Hatz GmbH and Co KG
Original Assignee
Motorenfabrik Hatz GmbH and Co KG
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 Motorenfabrik Hatz GmbH and Co KG filed Critical Motorenfabrik Hatz GmbH and Co KG
Publication of GB1282850A publication Critical patent/GB1282850A/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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

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

1282850 Valve gear MOTORENFABRIK HATZ GmbH 19 April 1971 [14 April 1970] 24481/71 Heading F1B Internal combustion engine in which the valves are operated by push rods includes arcuateshaped tappets, the inner and outer curved surfaces of which slide in an annular guideway formed by arcuate flanges on the engine casing, the guideway being at right angles to the axis of the camshaft. The cam-shaft 12 is mounted in the engine casing 10 and operates the push rods 14, 16 through arcuate tappets 18, 20. The tappets are guided to move in a circular path by an inner flange 10a and two outer flanges 10b and 10c. The tappets have rounded ends 18a and 20a which engage the cam and have hemi-spherical seats 18b and 20b which receive the ends of the push rods. The tappets are retained against axial movement by engagement with the face of a gear-wheel 22 mounted on the cam-shaft. Alternatively the tappets are retained by a cover plate secured to the casing, or the cover plate may itself be retained by the gear-wheel 22, there being an undulating spring between the cover plate and the gear-wheel. The tappets may form part of an oil feed system comprising an oil supply duct 10f and 10ff which feeds recesses 10h and lOhh formed in the casing. Each recess communicates with a respective pocket 10d, 10aa formed in the tappets. Oil passes from the pockets through passages 18d, 20d in the tappets to bores 14a and 16a in the push rods and thence to the rocker arms and valves.
GB24481/71A 1970-04-14 1971-04-19 Valve operating gear in internal combustion engines Expired GB1282850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702017823 DE2017823A1 (en) 1970-04-14 1970-04-14 Valve drive arrangement on internal combustion engines

Publications (1)

Publication Number Publication Date
GB1282850A true GB1282850A (en) 1972-07-26

Family

ID=5768057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24481/71A Expired GB1282850A (en) 1970-04-14 1971-04-19 Valve operating gear in internal combustion engines

Country Status (6)

Country Link
US (1) US3757749A (en)
JP (1) JPS515128B1 (en)
BR (1) BR7101991D0 (en)
DE (1) DE2017823A1 (en)
ES (1) ES390113A1 (en)
GB (1) GB1282850A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183252A (en) * 1978-08-09 1980-01-15 Sossin Mark W Ancillary valve rocker means
US4510897A (en) * 1982-06-04 1985-04-16 Motorenfabrik Hatz Gmbh & Co. Kg Mechanism for actuating the valve rockers of an internal combustion engine
DE4139411C2 (en) * 1990-11-30 1998-12-17 Ryobi Ltd Portable implement, especially lawn mowers
US5213074A (en) * 1990-12-26 1993-05-25 Ryobi Limited Lubricating device of four-stroke cycle engine unit for portable working machine
US5884593A (en) * 1996-04-24 1999-03-23 Tecumseh Products Company Head and overhead camshaft assembly for an internal combustion engine
US6499453B1 (en) 2000-10-30 2002-12-31 Tecumseh Products Company Mid cam engine
US7086367B2 (en) * 2004-08-17 2006-08-08 Briggs & Stratton Corporation Air flow arrangement for a reduced-emission single cylinder engine
US7617807B2 (en) * 2005-11-30 2009-11-17 Ford Global Technologies, Llc Engine and valvetrain with dual pushrod lifters and independent lash adjustment
US7424876B2 (en) * 2006-10-06 2008-09-16 Ford Global Technologies, Llc Pushrod engine with multiple independent lash adjusters for each pushrod
US7458350B2 (en) * 2007-02-28 2008-12-02 Ford Global Technologies, Llc Engine/valvetrain with shaft-mounted cam followers having dual independent lash adjusters
CN104295331B (en) * 2014-08-14 2017-08-25 重庆隆鑫发动机有限公司 Air distributing mechanism of engine for motorcycle and its motorcycle engine
JP2017120049A (en) * 2015-12-28 2017-07-06 株式会社クボタ Cylinder head cooling structure
CN115434778B (en) * 2022-10-14 2024-07-16 福建永强力加动力设备有限公司 Novel cam shaft

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US15019A (en) * 1856-06-03 Melodeon
US1459193A (en) * 1920-10-27 1923-06-19 Bugatti Ettore Valve mechanism
US1406271A (en) * 1921-01-17 1922-02-14 Henry C Michelsen Internal-combustion engine
US1910813A (en) * 1929-09-19 1933-05-23 Hudson Motor Car Co Internal combustion engine
US1970104A (en) * 1930-10-15 1934-08-14 Pratt & Whitney Aircraft Compa Valve operating device
US3353523A (en) * 1966-12-30 1967-11-21 Kolomensky Teplovozostroitelny Four-stroke twin combustion engine

Also Published As

Publication number Publication date
ES390113A1 (en) 1973-06-01
DE2017823A1 (en) 1971-10-28
US3757749A (en) 1973-09-11
BR7101991D0 (en) 1973-05-24
JPS515128B1 (en) 1976-02-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees