CA2025058A1 - Compact camshaft phasing drive - Google Patents

Compact camshaft phasing drive

Info

Publication number
CA2025058A1
CA2025058A1 CA 2025058 CA2025058A CA2025058A1 CA 2025058 A1 CA2025058 A1 CA 2025058A1 CA 2025058 CA2025058 CA 2025058 CA 2025058 A CA2025058 A CA 2025058A CA 2025058 A1 CA2025058 A1 CA 2025058A1
Authority
CA
Canada
Prior art keywords
drive
pistons
camshaft phasing
lash take
compact
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
CA 2025058
Other languages
French (fr)
Other versions
CA2025058C (en
Inventor
Michael J. Niemiec
Thomas H. Lichti
Michael E. Mccarroll
Kenneth A. Kovacevich
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.)
Motors Liquidation Co
Original Assignee
General Motors 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 General Motors Corp filed Critical General Motors Corp
Publication of CA2025058A1 publication Critical patent/CA2025058A1/en
Application granted granted Critical
Publication of CA2025058C publication Critical patent/CA2025058C/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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
    • 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
    • F02B2275/18—DOHC [Double overhead camshaft]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A variable camshaft phaser (VCP) is disclosed in various embodiments having lash take up drive piston assemblies with inner and outer helical splines for phase changing and return springs mounted in pockets in the pistons to shorten overall length for a compact unit and also relieve lash take-up friction on the piston return strokes. Numerous other features are included. A three-way feed-discharge valve limits oil flow to that necessary to operate the drive pistons for phasing.
CA 2025058 1989-10-10 1990-09-11 Compact camshaft phasing drive Expired - Fee Related CA2025058C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41801989A 1989-10-10 1989-10-10
US07/418,019 1989-10-10

Publications (2)

Publication Number Publication Date
CA2025058A1 true CA2025058A1 (en) 1991-04-11
CA2025058C CA2025058C (en) 1995-01-03

Family

ID=23656338

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2025058 Expired - Fee Related CA2025058C (en) 1989-10-10 1990-09-11 Compact camshaft phasing drive

Country Status (6)

Country Link
EP (1) EP0422791B1 (en)
JP (1) JPH0694803B2 (en)
AU (1) AU610784B1 (en)
BR (1) BR9005041A (en)
CA (1) CA2025058C (en)
DE (1) DE69005776T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361735A (en) * 1989-10-16 1994-11-08 Borg-Warner Automotive Transmission & Engine Components Corporation Belt driven variable camshaft timing system
JPH0547309U (en) * 1991-11-28 1993-06-22 株式会社ユニシアジェックス Valve timing control device for internal combustion engine
JP3362227B2 (en) * 1992-12-30 2003-01-07 メタ モトーレン‐ ウント エネルギー‐テヒニク ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Apparatus for variably controlling the valves of an internal combustion engine, particularly for non-throttling load control of a spark ignition engine
DE69411126T2 (en) * 1993-11-18 1998-10-15 Atsugi Unisia Corp Device for changing the cam control of an internal combustion engine
IT1281881B1 (en) * 1995-05-11 1998-03-03 Carraro Spa MECHANICAL DEVICE TO CHANGE THE PHASE BETWEEN THE CRANKSHAFT AND A CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE.
JPH0953418A (en) * 1995-08-09 1997-02-25 Unisia Jecs Corp Valve timing control device for internal combustion engine
DE10356908B4 (en) * 2003-12-02 2007-11-22 Hydraulik-Ring Gmbh Camshaft adjusting device for internal combustion engines of vehicles, preferably motor vehicles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1093715B (en) * 1978-03-24 1985-07-26 Alfa Romeo Spa TIMING VARIATOR OF THE DISTRIBUTION FOR INTERNAL COMBUSTION ALTERNATIVE ENGINE
DE2817774A1 (en) * 1978-04-22 1979-10-31 Bosch Gmbh Robert DEVICE FOR AUTOMATIC SPEED-DEPENDENT CHANGE OF THE INJECTION TIME OF THE INJECTION PUMP OF A COMBUSTION ENGINE
JPS55119310U (en) * 1979-02-19 1980-08-23
JPS598642A (en) * 1982-07-05 1984-01-17 Tsuchiya Chem Kk Coloring of glass with strippable film-forming paint
US4601266A (en) * 1983-12-30 1986-07-22 Renold Plc Phasing device for machine applications
GB2157364A (en) * 1984-02-07 1985-10-23 Alan John Graham I.C. engine variable valve timing device
US4811698A (en) * 1985-05-22 1989-03-14 Atsugi Motor Parts Company, Limited Valve timing adjusting mechanism for internal combustion engine for adjusting timing of intake valve and/or exhaust valve corresponding to engine operating conditions
US4811694A (en) * 1987-03-24 1989-03-14 Holmquist Melvin L Bird feeder with scale

Also Published As

Publication number Publication date
EP0422791A1 (en) 1991-04-17
DE69005776T2 (en) 1994-05-11
BR9005041A (en) 1991-09-10
JPH0694803B2 (en) 1994-11-24
EP0422791B1 (en) 1994-01-05
DE69005776D1 (en) 1994-02-17
CA2025058C (en) 1995-01-03
AU610784B1 (en) 1991-05-23
JPH03134209A (en) 1991-06-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed