Hydraulic device for supplying a hydraulic driving unit

Details Hydraulic device for supplying a hydraulic driving unit Hydraulic device for supplying a hydraulic driving unit

B - Operations, Transporting

29

C

B29C 45/67 (2006.01) B29C 45/82 (2006.01) F04B 49/06 (2006.01) G05D 3/20 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2133795

ABSTRACT HYDRAULIC DEVICE FOR SUPPLYING A HYDRAULIC DRIVING UNIT In a hydraulic device a variable capacity pump adapted to record a differential pressure via a control valve is actuated in such a way that a constant operational pressure gradient is maintained. Since the variable capacity pump is driven by a rotary current motor, which is connected to a current source by a frequency converter and is regulable with regard to its speed, it is possible to control hydraulic consumers in an energy-saving manner at a reasonable price.

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