Hydraulic driving arrangement for reciprocable masses or the like
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United States of America Patent
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-
Sep 17, 1985
Grant Date -
N/A
app pub date -
Feb 17, 1983
filing date -
Feb 20, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An energy-saving hydraulic driving arrangement includes a motor having two chambers separated by a reciprocable or angularly movable output element which can accelerate or decelerate a mass. One of the chambers receives pressurized fluid from one of a battery of accumulators containing fluid at different pressures (namely, from the accumulator wherein the pressure is slightly higher than the desired pressure in the one chamber) during acceleration of the output element while the other chamber discharges fluid directly into a sump. During deceleration of the output element, the one chamber draws fluid directly from the sump whereas the other chamber discharges pressurized fluid into that accumulator wherein the pressure is slightly less than the pressure of fluid in the other chamber.
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