Machine element or mechanism – Elements – Gear casings
Patent
1988-11-15
1990-01-16
Wright, Dirk
Machine element or mechanism
Elements
Gear casings
60490, 60487, F16H 4704
Patent
active
048935247
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.
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Kawamura Masahisa
Ohashi Ryota
Kanzaki Kokyukoki Mfg. Co. Ltd.
Wright Dirk
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