Title:
HYDROSTATIC ACCELERATING DRIVE APPARATUS
Document Type and Number:
Japanese Patent JPS6062309
Kind Code:
A
Abstract:
A hydrostatically operated vehicle, such as a street sweeper, includes an engine driven reversible hydrostatic pump coupled to a single hydrostatic pump driving wheels of the vehicle. The pump is shiftable from neutral to reverse and forward, low and high speed positions, and the hydrostatic motor is controlled between low and high speed positions with a metering valve automatically adjusting the motor speed in response to variation in reaction torque between the drive wheels and the ground. The vehicle also includes a reversible hydrostatic component drive system for powering motors which drive an elevator, pick-up broom and two gutter brooms in a forward working direction and which may be reversed for clearing debris jams by reversing the pump. The component drive system includes valve means for selectively driving the gutter brooms and for holding the gutter brooms inactive when the pump is driven in reverse.
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Inventors:
DENESU POORU KAASAI
Application Number:
JP10439084A
Publication Date:
April 10, 1985
Filing Date:
May 23, 1984
Export Citation:
Assignee:
FMC CORP
International Classes:
E01H1/00; E01H1/04; E01H1/05; F16H61/42; F16H61/438; F16H61/46; F16H61/472; F16H61/423; (IPC1-7): E01H1/00
Attorney, Agent or Firm:
Yuzo Yamazaki
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