GB2211127A - Camshaft and method for its production - Google Patents

Camshaft and method for its production

Info

Publication number
GB2211127A
GB2211127A GB8828529A GB8828529A GB2211127A GB 2211127 A GB2211127 A GB 2211127A GB 8828529 A GB8828529 A GB 8828529A GB 8828529 A GB8828529 A GB 8828529A GB 2211127 A GB2211127 A GB 2211127A
Authority
GB
United Kingdom
Prior art keywords
tubular member
rings
cam
cam rings
pressing
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
GB8828529A
Other versions
GB8828529D0 (en
GB2211127B (en
Inventor
Geoffrey Michael Suter
Ronald John Dawson
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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
Priority claimed from GB868617052A external-priority patent/GB8617052D0/en
Priority claimed from GB878705385A external-priority patent/GB8705385D0/en
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of GB8828529D0 publication Critical patent/GB8828529D0/en
Publication of GB2211127A publication Critical patent/GB2211127A/en
Application granted granted Critical
Publication of GB2211127B publication Critical patent/GB2211127B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
    • B21D53/845—Making camshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Gears, Cams (AREA)

Abstract

A camshaft for an internal combustion engine is produced as a tubular fabrication by assembling a plurality of initially circular cam rings (12) on a central tubular member (10), deforming the cam rings to a desired cam profile by pressing in die cavities (20-22) of a forming tool and then radially outwardly expanding the tubular member into the shaped cam profile rings by the application of internal fluid pressure to the tubular member (10). The shaped cam rings (12) are thereby secured against rotational and axial movement relative to the tubular member (10). Alternatively, the pressing of the cam rings to a desired cam profile may also deform the tubular member relative to the cam rings to such an extent as to secure them to the tubular member without recourse to the subsequent application of internal fluid pressure to the central tubular member.
GB8828529A 1986-07-12 1988-07-09 Camshaft and method for its production Expired - Lifetime GB2211127B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB868617052A GB8617052D0 (en) 1986-07-12 1986-07-12 Camshaft
GB878705385A GB8705385D0 (en) 1987-03-07 1987-03-07 Camshaft
PCT/GB1987/000484 WO1988000643A1 (en) 1986-07-12 1987-07-09 Camshaft and method for its production

Publications (3)

Publication Number Publication Date
GB8828529D0 GB8828529D0 (en) 1989-02-01
GB2211127A true GB2211127A (en) 1989-06-28
GB2211127B GB2211127B (en) 1990-01-31

Family

ID=26291027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8828529A Expired - Lifetime GB2211127B (en) 1986-07-12 1988-07-09 Camshaft and method for its production

Country Status (9)

Country Link
EP (1) EP0313565B1 (en)
JP (1) JPH02501323A (en)
KR (1) KR880701813A (en)
CN (1) CN1009570B (en)
BR (1) BR8707744A (en)
CA (1) CA1289776C (en)
ES (1) ES2007075A6 (en)
GB (1) GB2211127B (en)
WO (1) WO1988000643A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335945A4 (en) * 1987-10-01 1990-02-05 Husted Royce Hill Camshafts and methods of making same.
DE3803683A1 (en) * 1988-02-07 1989-08-17 Emitec Emissionstechnologie BUILT SHAFT, IN PARTICULAR CAMSHAFT, CRANKSHAFT OR GEAR SHAFT
DE3803685A1 (en) * 1988-02-07 1989-08-17 Emitec Emissionstechnologie CAMSHAFT
DE4406754C2 (en) * 1994-03-02 1998-11-19 Emitec Emissionstechnologie Multiple cams
WO1996027460A1 (en) * 1995-03-06 1996-09-12 Karl Mettler Production of the cam with finished size by cold forming
DE19622372B4 (en) * 1996-06-04 2006-06-01 Htm Härtetechnik & Metallbearbeitung Gmbh Method and device for producing camshafts
AU2001277474A1 (en) * 2000-07-12 2002-01-21 Mannesmannrohren-Werke Ag Method for producing metallic, non-rotationally symmetrical rings with a constant wall thickness over their circumference
DE10234368C1 (en) * 2002-07-27 2003-09-25 Daimler Chrysler Ag Manufacturing method for shaft provided with function elements uses plastic expansion of hollow shaft by internal fluidic pressure and elastic expansion of function elements fitted to shaft
JP4565540B2 (en) * 2003-08-25 2010-10-20 武蔵精密工業株式会社 Camshaft
GB0323232D0 (en) * 2003-10-03 2003-11-05 Rolls Royce Plc Electrical machine
DE102004011815A1 (en) 2004-03-11 2005-09-29 Daimlerchrysler Ag Camshaft and method for producing a camshaft
KR100799604B1 (en) * 2006-08-24 2008-01-30 주식회사 미보 Assembly method of cam and shaft
DE102007012756A1 (en) 2007-03-16 2008-09-18 Muhr Und Bender Kg Method for producing built-up camshafts
DE102009057633B3 (en) * 2009-12-09 2011-03-31 Thyssenkrupp Presta Teccenter Ag Method of making a built camshaft, camshaft body and camshaft
DE102012017040A1 (en) * 2012-08-29 2014-03-27 Gkn Sinter Metals Holding Gmbh Method for producing a composite component and a composite component
EP3093511B1 (en) * 2014-01-09 2019-06-12 Enplas Corporation Injection molding shaft
DE102014106924A1 (en) * 2014-05-16 2015-11-19 Thyssenkrupp Presta Teccenter Ag Method of making a built camshaft
DE102015206967A1 (en) 2015-04-17 2016-10-20 Thyssenkrupp Ag Method for positioning a camshaft element on a shaft segment of a camshaft

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1115093A (en) * 1965-12-30 1968-05-22 G K N Screws And Fasteners Ltd Improvements in or relating to cam shafts
GB1117816A (en) * 1965-07-31 1968-06-26 Gkn Screws Fasteners Ltd Improvements relating to cam shafts
FR2328108A1 (en) * 1975-10-18 1977-05-13 Kloeckner Humboldt Deutz Ag CAMSHAFT FOR INTERNAL COMBUSTION ENGINE WITH LINEAR PISTON

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1117816A (en) * 1965-07-31 1968-06-26 Gkn Screws Fasteners Ltd Improvements relating to cam shafts
GB1115093A (en) * 1965-12-30 1968-05-22 G K N Screws And Fasteners Ltd Improvements in or relating to cam shafts
FR2328108A1 (en) * 1975-10-18 1977-05-13 Kloeckner Humboldt Deutz Ag CAMSHAFT FOR INTERNAL COMBUSTION ENGINE WITH LINEAR PISTON

Also Published As

Publication number Publication date
ES2007075A6 (en) 1989-06-01
KR880701813A (en) 1988-11-05
CN87104854A (en) 1988-01-27
GB8828529D0 (en) 1989-02-01
GB2211127B (en) 1990-01-31
CA1289776C (en) 1991-10-01
EP0313565A1 (en) 1989-05-03
EP0313565B1 (en) 1990-09-12
BR8707744A (en) 1989-08-15
JPH02501323A (en) 1990-05-10
JPH0524322B2 (en) 1993-04-07
CN1009570B (en) 1990-09-12
WO1988000643A1 (en) 1988-01-28

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20070708