CA2018299A1 - Boat-type rocker arm with flanges - Google Patents

Boat-type rocker arm with flanges

Info

Publication number
CA2018299A1
CA2018299A1 CA2018299A CA2018299A CA2018299A1 CA 2018299 A1 CA2018299 A1 CA 2018299A1 CA 2018299 A CA2018299 A CA 2018299A CA 2018299 A CA2018299 A CA 2018299A CA 2018299 A1 CA2018299 A1 CA 2018299A1
Authority
CA
Canada
Prior art keywords
rocker arm
side walls
fulcrum
flanges
cold
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
CA2018299A
Other languages
French (fr)
Other versions
CA2018299C (en
Inventor
Jesse V. Mills
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.)
HENLEY MANUFACTURING HOLDING COMPANY Inc
Original Assignee
HENLEY MANUFACTURING HOLDING COMPANY Inc
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 HENLEY MANUFACTURING HOLDING COMPANY Inc filed Critical HENLEY MANUFACTURING HOLDING COMPANY Inc
Publication of CA2018299A1 publication Critical patent/CA2018299A1/en
Application granted granted Critical
Publication of CA2018299C publication Critical patent/CA2018299C/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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • F01L1/183—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft of the boat type

Abstract

A one-piece, cold-formed rocker arm is disclosed. The rocker arm is of the boat type and includes a one-piece metal body which is cold-formed from a metal blank and is of U-shaped cross-sectional configuration throughout most of its length.
The body has a bottom wall with structurally-integral side walls extending upwardly therefrom in generally parallel relationship. An intermediate, concave portion of the bottom w all has an opening therethrough which receives a fulcrum of a pivot post. One end portion of the rocker arm body has a recess to receive an end of a push rod which imparts pivotal motion to the rocker arm about the fulcrum. The other end of the rocker arm body has a pad for engaging an end of a valve stem to impart motion to the valve stem when the rocker arm is pivoted about the fulcrum. Outwardly-extending stiffening Flanges are formed at upper edge portions of intermediate portions of the side walls, which provides strength and stiffness to the side walls. The flanges substantially eliminate or at least substantially reduce buckling of the side walls during operation of the rocker arm and thereby eliminate or substantially reduce deflection between the two end portions of the rocker arm body.
CA002018299A 1989-11-09 1990-06-05 Boat-type rocker arm with flanges Expired - Fee Related CA2018299C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/434,857 1989-11-09
US07/434,857 US4940048A (en) 1989-11-09 1989-11-09 Boat-type rocker arm with flanges

Publications (2)

Publication Number Publication Date
CA2018299A1 true CA2018299A1 (en) 1991-05-09
CA2018299C CA2018299C (en) 2000-02-15

Family

ID=23725971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002018299A Expired - Fee Related CA2018299C (en) 1989-11-09 1990-06-05 Boat-type rocker arm with flanges

Country Status (5)

Country Link
US (1) US4940048A (en)
JP (1) JP2846935B2 (en)
CA (1) CA2018299C (en)
DE (1) DE4020891A1 (en)
GB (1) GB2237842B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033688A1 (en) * 1990-10-23 1992-04-30 Bayerische Motoren Werke Ag Lightweight rocker for use between can and valve - has baseplate and curved bow sides made of FRP with injection moulded braces and centre bearing
US5048475A (en) * 1991-01-17 1991-09-17 Henley Manufacturing Holding Company, Inc. Rocker arm
US5207191A (en) * 1992-08-31 1993-05-04 Henley Manufacturing Holding Company, Inc. Boat-type rocker arm with stiffening member
US5372097A (en) * 1992-12-18 1994-12-13 Welles Manufacturing Self-lubricating cam follower
JP2879511B2 (en) * 1993-07-07 1999-04-05 光洋精工株式会社 Press-made rocker arm and method of manufacturing the same
JP3306478B2 (en) * 1993-11-29 2002-07-24 光洋精工株式会社 Pressed rocker arm
EP0761933A1 (en) * 1995-09-08 1997-03-12 Sandco Automotive Limited Finger follower
US5730093A (en) * 1996-08-07 1998-03-24 Sandco Automotive Limited Roller rocker arm
US5819694A (en) * 1997-05-15 1998-10-13 Welles Manufacturing Company Stamped roller-type cam followers with added height
US6032627A (en) * 1998-07-28 2000-03-07 Teledyne Industries, Inc. Compact valve actuation mechanism
DE10064481A1 (en) 2000-12-22 2002-07-04 Mann & Hummel Filter Internal combustion engine with secondary air charging and method for controlling the secondary air charger
US7836860B2 (en) * 2007-11-21 2010-11-23 Charter Manufacturing Co., Inc. Engine rocker arm
WO2019223903A1 (en) * 2018-05-24 2019-11-28 Eaton Intelligent Power Limited Carrier having integrated engine brake and lubrication oil path

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905160A (en) * 1958-03-06 1959-09-22 Thompson Ramo Wooldridge Inc Rocker arm
US2905161A (en) * 1958-04-14 1959-09-22 Chrysler Corp Rocker arm
US3142357A (en) * 1962-05-11 1964-07-28 Earl A Thompson Rocker arm
US3614943A (en) * 1970-06-01 1971-10-26 Gerald A Schley Engine rocker arm support means
US3667434A (en) * 1970-12-31 1972-06-06 Ford Motor Co Rocker arm assembly including fulcrum mounted lubricant deflector
US4799464A (en) * 1983-03-03 1989-01-24 Toledo Stamping & Manufacturing Company Boat-type rocker arm assembly
US4577911A (en) * 1985-09-26 1986-03-25 The Torrington Company Oscillating bearing
US4653441A (en) * 1986-04-22 1987-03-31 Navistar International Corporation Engine rocker arm assembly
US4718379A (en) * 1986-05-27 1988-01-12 Eaton Corporation Rocker arm pivot assembly
US4858575A (en) * 1988-03-01 1989-08-22 David Fittro Rocker arm bearing assembly
US4825717A (en) * 1988-09-12 1989-05-02 Henley Manufacturing Corporation Rocker arm of the cam-follower type with ribs

Also Published As

Publication number Publication date
GB2237842A (en) 1991-05-15
GB2237842B (en) 1994-01-05
JP2846935B2 (en) 1999-01-13
JPH03168306A (en) 1991-07-22
DE4020891A1 (en) 1991-05-16
US4940048A (en) 1990-07-10
GB9014401D0 (en) 1990-08-22
CA2018299C (en) 2000-02-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed