Document Type and Number:
Japanese Patent JPH0519225
Kind Code:
Y2
Abstract:
An HST type axle driving apparatus integrally assembling a hydraulic pump and a hydraulic motor at an HST type driving speed changing unit, in which a transmission casing, a pump casing and a motor casing are formed of soft metal material, such as aluminum cast, whereby mechanically processed portions are eliminated as much as possible and the manufacturing cost is reduced. A wall of the transmission casing that journals a motor shaft and a pump shaft, through which oil passages are perforated, is formed of hard metal material, such as cast iron. The parts of hard metal material are assembled by being enclosed by the casing of soft metal material.
Application Number:
JP17788587U
Publication Date:
May 20, 1993
Filing Date:
November 21, 1987
Export Citation:
International Classes:
B60K17/10; F16H39/10; (IPC1-7): B60K17/10
Next Patent: JPH0519226