HYDRAULIC PUMP ASSEMBLY
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United States of America
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Issued Date -
Dec 19, 2024
app pub date -
Jun 13, 2024
filing date -
Jun 13, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates to a hydraulic pump assembly comprising: a variable displacement pump, preferably a load-sensing variable displacement pump, for outputting a volume flow rate of a hydraulic fluid, an electric motor for driving the variable displacement pump, in particular a swashplate or swivel angle pump, via a variable-speed drive shaft, and a control unit which is connected to the variable displacement pump and the electric motor and is configured to provide a predetermined volume flow rate by controlling the variable displacement pump and the electric motor. The hydraulic pump assembly is characterized in that the pump assembly further comprises a temperature sensor connected to the control unit, which senses a winding temperature of the electric motor, wherein as long as the winding temperature is below a threshold, the control unit is configured to provide the predetermined volume flow rate.
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