Hydraulic gravitational load energy recuperation
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United States of America Patent
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-
Jul 31, 2007
Grant Date -
Aug 24, 2006
app pub date -
Feb 16, 2006
filing date -
Feb 18, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydraulic system has gravitional load energy recuperation by opening a recuperation piloted valve with a pilot pressure supplied by a hydraulic pump so as to drive a recuperation hydraulic motor with a source of fluid pressurized by gravity from the load. The recuperation hydraulic motor drives the mechanical drive train of the prime mover that drives the pump that supplies the load, and other pumps that supply other loads.
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