Power plants – Pressure fluid source and motor – Having a mechanical clutch or brake device in the power train
Patent
1997-08-13
1999-11-02
Nguyen, Hoang
Power plants
Pressure fluid source and motor
Having a mechanical clutch or brake device in the power train
60487, 192 351, F16D 3102, B60K 4122
Patent
active
059747986
ABSTRACT:
A mechanical disconnection mechanism for a hydrostatic transmission. The output shaft of the hydrostatic transmission is divided into a drive portion and a driven portion, with both the drive portion and the driven portion being provided with external splines or gears. To connect the drive portion to the driven portion, a splined sleeve is positioned to engage the splines of both the driven portion and the drive portion such that rotation of the drive portion rotates the driven portion. To disconnect the drive portion from the driven portion, the splined sleeve is positioned to engage only one of the drive portion and the driven portion. In the disconnected position, the implement may be manually pushed without reverse driving the hydraulic unit of the transmission to thereby allow for relatively easy movement. A brake is mounted about the driven portion of the output shaft to enable the vehicle to be stopped regardless of the position of the splined sleeve.
REFERENCES:
patent: 4862767 (1989-09-01), Hauser
patent: 5701738 (1997-12-01), Eberle et al.
Eberle Frederick P.
Jolliff Norman E.
Nguyen Hoang
Tecumseh Products Co.
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