EP0240446A3 - An improved cam-shaft - Google Patents

An improved cam-shaft Download PDF

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Publication number
EP0240446A3
EP0240446A3 EP87500013A EP87500013A EP0240446A3 EP 0240446 A3 EP0240446 A3 EP 0240446A3 EP 87500013 A EP87500013 A EP 87500013A EP 87500013 A EP87500013 A EP 87500013A EP 0240446 A3 EP0240446 A3 EP 0240446A3
Authority
EP
European Patent Office
Prior art keywords
cams
shaft
improved cam
engines
improved
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.)
Withdrawn
Application number
EP87500013A
Other languages
German (de)
French (fr)
Other versions
EP0240446A2 (en
Inventor
Julian Piedrafita Martin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0240446A2 publication Critical patent/EP0240446A2/en
Publication of EP0240446A3 publication Critical patent/EP0240446A3/en
Withdrawn legal-status Critical Current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
    • F01L1/08—Shape of cams
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

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

Abstract

An improved camshaft forming a type of valve timing system that can be used with all the four cycle combustion internal engines, the so-called Otto engines, in which each of the cams extends in an identical one, symmetrical and positioned at 180 degrees with relation to the former, resulting that the number of cams is twice the number of cams foreseen in a conventional shaft, and the number of revolutions is half of the required ones for the latter to get the same purpose.
EP87500013A 1986-04-02 1987-04-02 An improved cam-shaft Withdrawn EP0240446A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES293323 1986-04-02
ES1986293323U ES293323Y (en) 1986-04-02 1986-04-02 PERFECTED CAMSHAFT

Publications (2)

Publication Number Publication Date
EP0240446A2 EP0240446A2 (en) 1987-10-07
EP0240446A3 true EP0240446A3 (en) 1988-02-24

Family

ID=8440491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87500013A Withdrawn EP0240446A3 (en) 1986-04-02 1987-04-02 An improved cam-shaft

Country Status (2)

Country Link
EP (1) EP0240446A3 (en)
ES (1) ES293323Y (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202273B (en) * 1987-03-18 1991-04-17 Bothwell P W Internal combustion engine
DE4322212A1 (en) * 1993-07-03 1995-01-12 Bayerische Motoren Werke Ag Cam-controlled valve actuation for a 4-stroke/8-stroke internal combustion engine
JP2890236B2 (en) * 1994-02-28 1999-05-10 本田技研工業株式会社 Valve operating control device for internal combustion engine
DE4412548A1 (en) * 1994-04-12 1995-10-19 Schlosser Werner Diopl Ing Fh Reciprocating IC engine with camshaft for control of engine valves
GB9804899D0 (en) * 1998-03-10 1998-04-29 Allpoints International Courie Improvements relating to internal combustion engines
DE102007056158A1 (en) * 2007-06-06 2008-12-24 Fm Alb-Energie Gmbh & Co. Kg Cam shaft-device for controlling inlet valve of cylinder of compressed gas engine i.e. silicone oil-steam engine, has cam for time-correct controlling of outlet valve for withdrawal of compressed gas from cylinder of engine
US8544436B2 (en) * 2010-12-08 2013-10-01 GM Global Technology Operations LLC Engine assembly including camshaft with multimode lobe
WO2014068365A1 (en) * 2012-10-30 2014-05-08 Gualtieri Andrea Improved distribution system, in particular of the desmodromic type

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90915C (en) *
US1443715A (en) * 1921-05-31 1923-01-30 Peraza Jose Castillo Poppet-valve-actuating mechanism
FR2232223A5 (en) * 1973-06-02 1974-12-27 Rykaczewski Dionizy I.C. engine camshaft with several lobes per valve - has distributor with as many contacts per spark plug as lobes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90915C (en) *
US1443715A (en) * 1921-05-31 1923-01-30 Peraza Jose Castillo Poppet-valve-actuating mechanism
FR2232223A5 (en) * 1973-06-02 1974-12-27 Rykaczewski Dionizy I.C. engine camshaft with several lobes per valve - has distributor with as many contacts per spark plug as lobes

Also Published As

Publication number Publication date
EP0240446A2 (en) 1987-10-07
ES293323Y (en) 1987-12-16
ES293323U (en) 1987-05-01

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