METHOD FOR OPERATING A HYDROPNEUMATIC DEVICE, AND HYDRAULIC FLUID PUMP FOR THE MAINTENANCE OF A HYDROPNEUMATIC DEVICE
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United States of America Patent
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Issued Date -
May 28, 2009
app pub date -
Sep 19, 2008
filing date -
Sep 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method is disclosed for operating a hydropneumatic device (1) for pressure multiplication, with a working piston and a multiplier piston (9) for pressure multiplication on to the working piston and with an accumulator piston (3) for an urgent movement of the working piston by forcing hydraulic fluid out of an accumulator chamber (12), wherein a ventilation opening (13) is provided in the accumulator chamber (12), through which air drawn into the accumulator chamber (12) can be discharged during a maintenance process. According to the invention for an operating mode in which power strokes are executed, the hydraulic fluid volume in the accumulator chamber (12) is discharged below the ventilation opening (13) in the accumulator chamber. The hydraulic fluid pump is additionally disclosed.
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