Honda Giken Kogyo Kabushiki Kaisha

Honda Giken Kabushiki Kaisha

Tsugio Ikeda

Kouji Okazaki

Takashi Inagaki

Michio Okubo

Hitoshi Yamamoto

Katsuhiro Kubo

Takumi Tottori

Norikazu Maeda

A transmission for a vehicle including first and second rotating shafts which are rotatable by the torque transmitted through a clutch. Each shaft includes several transmission gears. A resisting member can be disposed between a gear and its corresponding shaft, such that the resisting member reduces the difference in rotating speed between the first and second shafts. The resisting member serves to reduce shift shock and noise generated during shifting. Additional resisting members can be placed on either the first or second shaft in order to achieve reduced shift shock and noise.

Constant-mesh transmission for a vehicle

The inlet and outlet passages communicating with a water-cooled engine oil cooler for a vehicle, such as a motorcycle, are arranged for bypass of a regulated amount of oil from the inlet passage to the outlet passage to enhance the flowability of the cooled oil. Provision is made for a replaceable flow control orifice between the oil inlet and outlet passages to regulate oil viscosity. Also described is an arrangement providing for mounting the cooler to the crankcase or oil pan surface whereby air flowing past the cooler during movement of the vehicle assists the effects of the cooling liquid.

Engine oil cooling system

A vehicle engine, particularly adapted for motorcycle application, includes a housing structure in which the cylinder block, the crankcase and the transmission case are integrally formed and openings are provided in separate, angularly displaced walls of the housing for accessing the crankcase and transmission case respectively to permit the crankshaft and the transmission to be independently installed or demounted with respect to each other. Also, the detachable cover for closing one of the side openings of the housing is formed as a stopper for preventing axial disengagement of the starter apparatus ring gear from the crankcase.

Vehicle engine

In order to reduce the space requirements of an internal combustion engine the starter apparatus therefor includes an axially elongated intermediate gear shaft containing gears at each end, one of which meshes with the starter motor pinion and the other of which meshes with the ring gear on the crankshaft.

Starting apparatus for an internal combustion engine

In order to prevent inordinate thermally-induced backlash between the drive and driven gears of the timing transmission of an internal combustion engine, an idler gear between the drive and driven gears is rotatably carried by a support plate having one end connected to one of the engine crankshaft or camshaft and its other end connected to the engine body by a connection adapted to accommodate relative thermal expansion between the support plate and the engine body.

Timing transmission device for an internal combustion engine

An oil pump organization for an internal combustion engine is described in which the pump rotor is operatively connected to a transmission gear shaft in order to eliminate the need for a pump drive shaft and to thereby reduce engine space requirements.

Oil pump for internal combustion engine disposed concentrically about

An exhaust timing control apparatus for two-cycle engines of the type having one or more exhaust ports extending outwardly from the cylinder. A valve body is pivotally mounted within the exhaust passage in a recess specifically provided therefore. The valve has a control surface approaching the cylinder to define an apparent upper timing edge of the exhaust port. Holes are provided through the valve body for flow to operate to inhibit the build up of carbon deposits which often inhibit the operation of the valve. An inclined surface may be formed on the surface of the valve body to facilitate the removal of carbon. Edges may also be provided on the valve body which cooperate with the walls of the recess in the exhaust passage to knock off carbon build up such that it might be conveyed through the exhaust pipe and from the system.

Growing community of inventors

Saitama, Japan

Tsugio Ikeda