IT1254606B - AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE - Google Patents

AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE

Info

Publication number
IT1254606B
IT1254606B ITMI920261A ITMI920261A IT1254606B IT 1254606 B IT1254606 B IT 1254606B IT MI920261 A ITMI920261 A IT MI920261A IT MI920261 A ITMI920261 A IT MI920261A IT 1254606 B IT1254606 B IT 1254606B
Authority
IT
Italy
Prior art keywords
motorcycle
valve
camshaft
motor
usual
Prior art date
Application number
ITMI920261A
Other languages
Italian (it)
Inventor
Eugenio Carmine
Original Assignee
Cagiva Motor
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 Cagiva Motor filed Critical Cagiva Motor
Priority to ITMI920261A priority Critical patent/IT1254606B/en
Publication of ITMI920261A0 publication Critical patent/ITMI920261A0/en
Priority to EP93101965A priority patent/EP0555805A1/en
Priority to TW082105536A priority patent/TW222317B/zh
Publication of ITMI920261A1 publication Critical patent/ITMI920261A1/en
Application granted granted Critical
Publication of IT1254606B publication Critical patent/IT1254606B/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
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • F01L13/085—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio the valve-gear having an auxiliary cam protruding from the main cam profile

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Un motore di una motocicletta comprende un usuale albero a camme (1) cooperante, con un'usuale catena o cinghia dentata di distribuzione ed operante su almeno una valvola di scarico di almeno un corrispondente cilindro in cui è mobile alternativamente un pistone. All'albero a camme sono associati mezzi movimentatori mobili (11, 61) cooperanti con detta valvola di scarico atti ad assumere almeno due posizioni di lavoro, in una prima posizione assunta durante l'avviamento del motore aprendo la valvola suddetta ed in una seconda posizione essendo ininfluente all'usuale azione dell'albero a camme sulla valvola stessa, essendo previsti mezzi di comando (24, 70) funzionalmente connessi a detti mezzi movimentatori (11, 61) e associati ad un organo rotante del motore, detti mezzi di comando (24, 70) in funzione del numero di giri del motore potendo assumere due posizioni di lavoro tali da portare i mezzi movimentatori (11, 61) nelle posizioni sopra descritte e consentire all'avviamento della motocicletta, la decompressione del cilindro in corrispondenza al quale la valvola di scarico suddetta è disposta.A motor of a motorcycle comprises a usual camshaft (1) cooperating with a usual timing chain or timing belt and operating on at least one discharge valve of at least one corresponding cylinder in which a piston is alternatively movable. Movable moving means (11, 61) associated with said exhaust valve are associated with the camshaft and are capable of assuming at least two working positions, in a first position taken during engine start-up by opening the aforementioned valve and in a second position being irrelevant to the usual action of the camshaft on the valve itself, having control means (24, 70) functionally connected to said moving means (11, 61) and associated with a rotating engine member, said control means ( 24, 70) according to the number of engine revolutions, being able to assume two working positions such as to bring the moving means (11, 61) to the positions described above and to allow the starting of the motorcycle to decompress the cylinder at which the said drain valve is arranged.

ITMI920261A 1992-02-10 1992-02-10 AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE IT1254606B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI920261A IT1254606B (en) 1992-02-10 1992-02-10 AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE
EP93101965A EP0555805A1 (en) 1992-02-10 1993-02-09 Automatic compression release device for starting an internal combustion engine
TW082105536A TW222317B (en) 1992-02-10 1993-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI920261A IT1254606B (en) 1992-02-10 1992-02-10 AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE

Publications (3)

Publication Number Publication Date
ITMI920261A0 ITMI920261A0 (en) 1992-02-10
ITMI920261A1 ITMI920261A1 (en) 1993-08-10
IT1254606B true IT1254606B (en) 1995-09-28

Family

ID=11361873

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920261A IT1254606B (en) 1992-02-10 1992-02-10 AUTOMATIC DECOMPRESSION DEVICE OF A MOTOR OF A MOTORCYCLE IN THE STARTING PHASE

Country Status (3)

Country Link
EP (1) EP0555805A1 (en)
IT (1) IT1254606B (en)
TW (1) TW222317B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632074C2 (en) * 1996-08-08 1998-11-05 Siemens Ag Method for operating a valve-controlled internal combustion engine coupled to a starter generator without a clutch, and valve-controlled internal combustion engine for carrying out the method
JPH1193631A (en) * 1997-09-16 1999-04-06 Fuji Robin Ind Ltd Decompressor for manual starting-type four-cycle engine
US6269786B1 (en) * 1999-07-21 2001-08-07 Tecumseh Products Company Compression release mechanism
US6758197B2 (en) 2000-09-01 2004-07-06 Bombardier-Rotax Gmbh Blow-by gas separator and decompressor for an internal combustion engine
WO2002018820A1 (en) * 2000-09-01 2002-03-07 Bombardier-Rotax Gmbh Continuously variable transmission for an internal combustion engine
JP4181903B2 (en) * 2003-03-17 2008-11-19 本田技研工業株式会社 Cam mechanism with decompression device
TWI451031B (en) * 2010-05-12 2014-09-01 Sanyang Industry Co Ltd Engine decompression mechanism
DE102016119105A1 (en) * 2016-10-07 2018-04-12 Uwe Eisenbeis Camshaft for internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592083A (en) * 1925-03-12 1926-07-13 V Baldwin Van Valve control
DE897175C (en) * 1951-09-13 1953-11-19 Kloeckner Humboldt Deutz Ag Device for the temporary reduction or elimination of compression while starting valve-controlled internal combustion engines
BE673717A (en) * 1965-01-12 1966-06-14
JPH0250107U (en) * 1988-10-03 1990-04-09
CA1327150C (en) * 1988-12-28 1994-02-22 Christian Fabi Mechanism for the progressive dephasing of a camshaft in an internal combustion engine

Also Published As

Publication number Publication date
ITMI920261A1 (en) 1993-08-10
TW222317B (en) 1994-04-11
ITMI920261A0 (en) 1992-02-10
EP0555805A1 (en) 1993-08-18

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