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1. AU2003241682 - Engine for scooter

Office
Australie
Numéro de la demande 2003241682
Date de la demande 16.06.2003
Numéro de publication 2003241682
Date de publication 11.09.2003
Type de publication A
CIB
F01L 1/14
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
01"MACHINES" OU MACHINES MOTRICES EN GÉNÉRAL; ENSEMBLES FONCTIONNELS DE MACHINES MOTRICES EN GÉNÉRAL; MACHINES À VAPEUR
LSYSTÈMES DE DISTRIBUTION À SOUPAPES, À FONCTIONNEMENT CYCLIQUE, POUR "MACHINES" OU MACHINES MOTRICES
1Systèmes de distribution à soupapes, p.ex. à soupapes de levage
12Organe de transmission entre la commande de soupape et la soupape
14Poussoirs; Tiges-poussoirs
F01L 1/26
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
01"MACHINES" OU MACHINES MOTRICES EN GÉNÉRAL; ENSEMBLES FONCTIONNELS DE MACHINES MOTRICES EN GÉNÉRAL; MACHINES À VAPEUR
LSYSTÈMES DE DISTRIBUTION À SOUPAPES, À FONCTIONNEMENT CYCLIQUE, POUR "MACHINES" OU MACHINES MOTRICES
1Systèmes de distribution à soupapes, p.ex. à soupapes de levage
26caractérisés par plusieurs soupapes commandées simultanément par le même organe de transmission; particuliers aux "machines" ou machines motrices ayant plus de deux soupapes de levage par cylindre
F01L 1/46
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
01"MACHINES" OU MACHINES MOTRICES EN GÉNÉRAL; ENSEMBLES FONCTIONNELS DE MACHINES MOTRICES EN GÉNÉRAL; MACHINES À VAPEUR
LSYSTÈMES DE DISTRIBUTION À SOUPAPES, À FONCTIONNEMENT CYCLIQUE, POUR "MACHINES" OU MACHINES MOTRICES
1Systèmes de distribution à soupapes, p.ex. à soupapes de levage
46Parties constitutives, détails ou accessoires, non couverts par un des sous-groupes précédents
CPC
F01L 1/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
12Transmitting gear between valve drive and valve
14Tappets
F01L 1/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
26characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
F01L 1/46
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
46Component parts, details, or accessories, not provided for in preceding subgroups
F01L 2001/0537
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
02Valve drive
04by means of cams, camshafts, cam discs, eccentrics or the like
047Camshafts
053overhead type
0537Double overhead camshafts [DOHC]
F01L 2303/01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
2303Manufacturing of components used in valve arrangements
01Tools for producing, mounting or adjusting, e.g. some part of the distribution
Déposants YAMAHA HATSUDOKI KABUSHIKI KAISHA
Inventeurs Aoyama, Atsushi
Données relatives à la priorité 2002-181341 21.06.2002 JP
Titre
(EN) Engine for scooter
Abrégé
(EN) An engine for a scooter, where valve lifters (33) are individually interposed between suction and exhaust valves (16, 17) and cam shafts (31, 32), and an axis line (C) of a cylinder (7) is extended toward the front of the vehicle. A stopper (42) opposed to a top face (33a) of each valve lifter (33) is provided on the cylinder (7). When the valve lifter (33) is moved, with a cam shaft removed from a cylinder head (12), to the direction where the valve lifter (33) comes out of the cylinder head (12), the top face (33a) of the valve lifter (33) is in contact with the stopper (42) so that the valve lifter (33) is prevented from falling out of the cylinder (7) by the stopper (42). Accordingly, even if the cam shaft is removed during maintenance, the valve lifter (33) is kept assembled in the cylinder (7). That is, a DOHC-type engine (2) can be mounted on a scooter with the valve lifter (33) being prevented from falling out of position during maintenance.
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