Honda Motor Co., Ltd.

Shoji Machida

Rico Resch

Mirko Leesch

Soichi Sugino

Kohei Iizuka

Noriaki Saitoh

Jorg Muller

Mariko Shibamura

Toshikazu Kouno

Yoshinori Tanaka

Masanori Endo

Kazunori Miyata

Keita Yano

Yasutaka Yano

A lubricating structure of a transmission is capable of supplying more lubricating oil to the vicinity of one end portion of a shaft, which rotates in a transmission, than lubricating oil supplied to the remaining mechanisms of the transmission. An internal space of the shaft rotating in the transmission has a pipe inserted thereto with a gap provided therebetween, a large-diameter portion having two shaft lubrication holes, a stepped portion, and a small-diameter portion having a shaft lubrication hole. The pipe has a first pipe lubrication hole in communication with the gap and a second pipe lubrication hole in communication with the small-diameter portion.

Lubricating structure of transmission

A clutch for a transmission is provided in which a transmission case includes a first wall portion and a second wall portion that define a clutch housing chamber for housing a clutch outer, a clutch inner, a friction member, and an extension portion of a first gear shaft that extends from a shaft end portion of a second gear shaft, the clutch outer is supported on the first wall portion via a first bearing, and the clutch inner is supported on the through hole of the second wall portion, through which the first gear shaft extends, via a second bearing, and therefore, it is possible to enhance the coaxiality of the clutch outer and the clutch inner by supporting them on the transmission case independently from the first and second gear shafts, prevent the torque transmission capacity of the clutch from decreasing, and avoid the occurrence of judder.

Clutch for transmission

A lubricating structure of a transmission is capable of supplying a lubricating oil with respect to a clutch promptly and stably. The lubricating structure of the transmission includes a first oil passagewhich extends in a second input shaftfrom one end side thereof to a first position, and the lubricating oil is supplied from the one end side, a second oil passagewhich connects to the first oil passageat the first position and extends in the second input shaftto a second position, a first lubrication holewhich distributes the lubricating oil to the second clutchat the first position, and a second lubrication holewhich distributes the lubricating oil to a transmission mechanismat the second position.

An automatic transmission includes an input shaft, an output member, a first planetary gear system, a second planetary gear system, a third planetary gear system, a fourth planetary gear system, and an engagement mechanism. The input shaft is configured to be rotated with power of a driving source relative to the transmission case. The output member is to output rotation of the input shaft using multiple gear-shifting. The multiple gear-shifting is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Automatic transmission

An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. Each of a plurality of gear ratios is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to sixth engagement assemblies. Each of a plurality of gear ratios is provided by setting three of the first to sixth engagement assemblies in a engagement state.

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Wako, Japan

Shoji Machida