WO1988002059A1 - Variable lift cam follower - Google Patents

Variable lift cam follower Download PDF

Info

Publication number
WO1988002059A1
WO1988002059A1 PCT/AU1987/000307 AU8700307W WO8802059A1 WO 1988002059 A1 WO1988002059 A1 WO 1988002059A1 AU 8700307 W AU8700307 W AU 8700307W WO 8802059 A1 WO8802059 A1 WO 8802059A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
valve
cam follower
cam
lift
Prior art date
Application number
PCT/AU1987/000307
Other languages
English (en)
French (fr)
Inventor
Donald Charles Wride
Original Assignee
Wride, Marlene, Alfreda
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 Wride, Marlene, Alfreda filed Critical Wride, Marlene, Alfreda
Priority to DE8787906051T priority Critical patent/DE3777836D1/de
Priority to AT87906051T priority patent/ATE74183T1/de
Publication of WO1988002059A1 publication Critical patent/WO1988002059A1/en

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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic

Definitions

  • valve 3 is operated by a rocker arm 12 which is actuated by a hydraulic piston 13,. a spring 14 maintaining the piston 13 against a bearing member 15 on the rocker 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
PCT/AU1987/000307 1986-09-09 1987-09-09 Variable lift cam follower WO1988002059A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8787906051T DE3777836D1 (de) 1986-09-09 1987-09-09 Nockenfolger mit variablem hub.
AT87906051T ATE74183T1 (de) 1986-09-09 1987-09-09 Nockenfolger mit variablem hub.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH7904 1986-09-09
AUPH790486 1986-09-09

Publications (1)

Publication Number Publication Date
WO1988002059A1 true WO1988002059A1 (en) 1988-03-24

Family

ID=3771805

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1987/000307 WO1988002059A1 (en) 1986-09-09 1987-09-09 Variable lift cam follower

Country Status (2)

Country Link
EP (1) EP0345252B1 (de)
WO (1) WO1988002059A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9222376B2 (en) 2013-05-03 2015-12-29 General Electric Company Cam follower system for engine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266077A (en) * 1938-10-03 1941-12-16 Henry A Roan Internal combustion engine
US2565022A (en) * 1943-06-01 1951-08-21 Wilhelmus A Hattink Adjusting means for cam operated engine valves
US2934052A (en) * 1958-11-17 1960-04-26 Irvin R Longenecker Valve operating mechanism
US4261307A (en) * 1979-09-06 1981-04-14 Sidney Oldberg Variable valve timing control for internal combustion engines
US4278233A (en) * 1978-09-16 1981-07-14 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Arrangement for actuating gas-change valves
DE3041864A1 (de) * 1980-11-06 1982-05-13 Audi Nsu Auto Union Ag, 7107 Neckarsulm Vorrichtung zum verschieben der steuerzeit eines gaswechselventils einer brennkraftmaschine
AU8005582A (en) * 1981-01-20 1982-08-16 Wride, Marlene Alfreda Variable lift cam follower
GB2097084A (en) * 1981-04-16 1982-10-27 Maschf Augsburg Nuernberg Ag Hydraulic device for actuating gas change
US4382428A (en) * 1981-06-08 1983-05-10 Tourtelot Jr Edward M Contoured finger follower variable valve timing mechanism
US4469056A (en) * 1983-02-22 1984-09-04 Tourtelot Jr Edward M Dual follower variable valve timing mechanism
US4502426A (en) * 1982-05-17 1985-03-05 Skelley James H Variable valve lift and timing mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE311780C (de) *
DE2951361A1 (de) * 1979-12-20 1981-07-02 Bayerische Motoren Werke AG, 8000 München Ventiltrieb mit hubverstellung fuer brennkraftmaschinen

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266077A (en) * 1938-10-03 1941-12-16 Henry A Roan Internal combustion engine
US2565022A (en) * 1943-06-01 1951-08-21 Wilhelmus A Hattink Adjusting means for cam operated engine valves
US2934052A (en) * 1958-11-17 1960-04-26 Irvin R Longenecker Valve operating mechanism
US4278233A (en) * 1978-09-16 1981-07-14 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Arrangement for actuating gas-change valves
US4261307A (en) * 1979-09-06 1981-04-14 Sidney Oldberg Variable valve timing control for internal combustion engines
DE3041864A1 (de) * 1980-11-06 1982-05-13 Audi Nsu Auto Union Ag, 7107 Neckarsulm Vorrichtung zum verschieben der steuerzeit eines gaswechselventils einer brennkraftmaschine
AU8005582A (en) * 1981-01-20 1982-08-16 Wride, Marlene Alfreda Variable lift cam follower
GB2097084A (en) * 1981-04-16 1982-10-27 Maschf Augsburg Nuernberg Ag Hydraulic device for actuating gas change
US4382428A (en) * 1981-06-08 1983-05-10 Tourtelot Jr Edward M Contoured finger follower variable valve timing mechanism
US4502426A (en) * 1982-05-17 1985-03-05 Skelley James H Variable valve lift and timing mechanism
US4469056A (en) * 1983-02-22 1984-09-04 Tourtelot Jr Edward M Dual follower variable valve timing mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0345252A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9222376B2 (en) 2013-05-03 2015-12-29 General Electric Company Cam follower system for engine

Also Published As

Publication number Publication date
EP0345252B1 (de) 1992-03-25
EP0345252A1 (de) 1989-12-13
EP0345252A4 (de) 1989-12-19

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