HST (hydro-static-transmission) system driving speed changing ap

Details HST (hydro-static-transmission) system driving speed changing ap HST (hydro-static-transmission) system driving speed changing ap

1988-04-08

1989-10-03

Look, Edward K.

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

74701, 180307, F16D 3900

Patent

active

048708208

ABSTRACT:
An HST system driving speed changing apparatus, including a hydraulic motor, which constitutes the HST system driving speed changing apparatus wherein the transmission case of the apparatus is also used as the hydraulic motor case. This construction facilitates assembly of the apparatus and therefore allows a savings in manufacturing cost. Also disclosed is an HST system driving speed changing apparatus, which provides a separate hydraulic pump. The pump has a changeable mounting position at the side surfaces of the transmission case, whereby the pump shaft can correspond to whichever direction the crank shaft of the engine is disposed.

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