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US 2010/0166570 A1Published application
Method and apparatus for detecting the fluid condition in a pump
AssigneeLittle Giant Pump Company
InventorSteven W. Hampton
Life of this patent
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Abstract
A pump control system which detects a fluid condition in a pump is disclosed. The pump control system may include a control event based on the fluid condition in the pump. The pump control system may detect a fluid condition in the pump by monitoring the frequency response of the pump.
Claims34
An electrically powered fluid transfer system, comprising:
- a pump having a fluid inlet and a fluid outlet in fluid communication with the fluid inlet, the pump moving fluid from the fluid inlet through an interior of the pump and onto the fluid outlet when power is provided to a motor of the pump;
- and
- a controller operatively coupled to the pump to control when power is provided to the pump, the controller monitoring at least one characteristic of a frequency response of the pump while the pump is powered to determine a fluid condition within the pump.
A method of controlling an electrically powered fluid transfer system, the method comprising the steps of:
- providing a pump configured to displace a fluid;
- monitoring at least one characteristic of a frequency response of the pump while the pump is powered;
- determining a fluid condition within the pump based on the at least one characteristic of the frequency response of the pump;
- and
- altering an operation of the pump when the fluid condition within the pump is a first fluid condition.
2 more elements
Dependencies are inferred from the claim text.