Machine element or mechanism – Elements – Gear casings
Patent
1986-10-21
1988-06-14
Staab, Lawrence
Machine element or mechanism
Elements
Gear casings
74720, F16H 4704
Patent
active
047503815
ABSTRACT:
A hydromechanical transmission that can be used as an efficient, continuously variable transmission has a differential mechanism, a hydraulic transmission mechanism, a mode selector mechanism, a locking mechanism, and a clutch mechanism. The hydraulic transmission mechanism has two pump/motors one of which acts as a hydraulic pump when the other serves as a hydraulic motor, and vice-versa. The mode selector establishes either a low-speed more or a high-speed mode. When one of the two pump/motors operates at a low speed in a given range of higher speeds in the high-speed mode, the input/output shaft of the pump/motor is locked by the locking mechanism. When the locking mechanism is in operation, the other pump/motor operating at a higher speed is disconnected from the differential mechanism by the clutch mechanism.
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Kita Yasuo
Nakakoji Yoshihiko
Novais David
Shimadzu Corporation
Staab Lawrence
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