Vehicle hydraulic driving system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 10, 2004
Grant Date -
Jun 13, 2002
app pub date -
Nov 28, 2001
filing date -
Nov 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydraulic drive for a vehicle has a pressure source (7) generating a predetermined pressure for maintaining the operating pressure of a hydraulic motor (5), a braking cylinder (18) with a spring chamber (20) comprising a spring arrangement (19) for operating a braking arrangement (17) and a release chamber (21) that can be acted upon by pressurised fluid from the pressure source (7) against the force of the spring arrangement (19) with the purpose of retaining the braking device (17) in its release position, and comprises a braking control valve (22) that, in a release position, releases a flow from the pressure source (7) to the release chamber (21).
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