Integral sensor and control for dry run and flow fault protection of a pump
First Claim
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1. A pump system, comprising:
- a pressure sensor, for providing a signal indicative of a sensed pressure;
a controller, responsive to the signal indicative of a sensed pressure, and also responsive to electrical power, for regulating the electrical power based on at least the sensed pressure; and
a pump unit, having a pumping mechanism and an electrical motor for driving the pumping mechanism, responsive to the regulated electrical power;
wherein the pumping mechanism includes an inlet cavity and an outlet cavity on either side of a pumping structure, and the pressure sensor is disposed in the inlet cavity and/or the outlet of the pumping mechanism and is communicatively coupled to the controller.
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Abstract
A pump providing fault protection based on a controller receiving sensed pressure values from a pressure sensor included in a cavity of the pump, so as to be integral with the pump.
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Citations
8 Claims
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1. A pump system, comprising:
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a pressure sensor, for providing a signal indicative of a sensed pressure;
a controller, responsive to the signal indicative of a sensed pressure, and also responsive to electrical power, for regulating the electrical power based on at least the sensed pressure; and
a pump unit, having a pumping mechanism and an electrical motor for driving the pumping mechanism, responsive to the regulated electrical power;
wherein the pumping mechanism includes an inlet cavity and an outlet cavity on either side of a pumping structure, and the pressure sensor is disposed in the inlet cavity and/or the outlet of the pumping mechanism and is communicatively coupled to the controller. - View Dependent Claims (2, 3, 4)
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5. A pump system, comprising:
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a pressure sensor, for providing a signal indicative of a sensed pressure;
means, responsive to the signal indicative of a sensed pressure, and also responsive to electrical power, for regulating the electrical power based on at least the sensed pressure; and
a pump unit, having a pumping mechanism and an electrical motor for driving the pumping mechanism, responsive to the regulated electrical power;
wherein the pumping mechanism includes an inlet cavity and an outlet cavity on either side of a pumping structure, and the pressure sensor is disposed in the inlet cavity and/or the outlet of the pumping mechanism and is communicatively coupled to the controller. - View Dependent Claims (6)
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7. A method, comprising:
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sensing pressure at either an inlet cavity or an outlet of a pumping mechanism of a pump unit having an electrical motor; and
regulating electrical power to the electrical motor based on at least the sensed pressure. - View Dependent Claims (8)
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Specification