Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1995-04-07
1998-12-08
Thorpe, Timothy
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
417 53, 7315222, 7315252, F04B 4906
Patent
active
058460560
ABSTRACT:
This invention provides a reciprocating pump system having means for determining the cylinder head pressure of at least one cylinder of each pump in the system. A control circuit continually determines the average cylinder head pressure, estimates the pump bearing life that has been consumed and the remaining pump bearing life from the pressure head information. The control circuit also controls the operation of the pumps as a function of cylinder head pressure. A temperature sensor coupled to the pump system provides temperature of the pump oil. The control circuit controls the operation of the pump as function of the pump oil temperature. The pump speed is decrease when the pump oil temperature exceeds a predetermined value. A vibration sensor coupled to the pump provides vibration level to the control circuit, which controls the pump operation in response thereto.
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Dhindsa Jasbir S.
Rambin, Jr. Leroy M.
Thai Xuan M.
Thorpe Timothy
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