Honda Motor Co., Ltd.

Mitsuo Kimura

Yoshimichi Tsubata

Shin Fukasawa

Yoshimi Hirano

Motoo Takeda

Takashi Ashimori

A lubrication system for a transmission includes a first tubular portion, a second tubular portion, and a hollow cylindrical member. The first tubular portion has a cavity and includes a flange at one end adjacent to a gear shaft of the transmission. The first tubular portion has a first enlarged-diameter part extending in an axial direction from a joint at which the first tubular portion is joined to the second tubular portion. The second tubular portion has a second enlarged-diameter part that extends in the axial direction from the joint and has a diameter substantially equal to a diameter of the first enlarged-diameter part. The hollow cylindrical member is disposed in the first and second tubular portions and tightly fitted in the first and second enlarged-diameter parts of the first and second tubular portions joined to each other.

Lubrication system for transmission

The present invention provides a transmission mounting structure. A transmission case is constructed by connecting a clutch case, a case main body, and an end case, which are split in the direction of a rotational center axis. The clutch case and the case main body are provided with projecting portions. The projecting portions are connected by co-fastening bolts. Fixtures are secured to the projecting portions by mounting bolts, which are installed from the direction of the rotational center axis. The transmission is installed to a vehicle through the intermediary of supports. The projecting portions are co-fastened by the mounting bolts.

Transmission mounting structure

A parallel axes type automatic transmission including a first input shaft having m or more (m is an integer not less than 2) wet multiplate clutches and drive gears rotatably mounted, a second input shaft having n or more (n is an integer greater than m and not less than 3) wet multiplate clutches and drive gears rotatably mounted, and a third input shaft having m or less wet multiplate clutches and drive gears rotatably mounted. The automatic transmission further includes an output shaft having a fixed final drive gear and a plurality of fixed driven gears. The first, second, and third input shafts are arranged at different levels so that the second input shaft is arranged at the highest level, the first input shaft is arranged at the middle level, and the third input shaft is arranged at the lowest level.

Growing community of inventors

Wako, Japan

Mitsuo Kimura