Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Starting and/or stopping
Patent
1995-11-03
1998-08-04
Sircus, Brian
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Starting and/or stopping
318103, 417 4, 417 442, H02P 154, F04B 4106
Patent
active
057898790
ABSTRACT:
A multiple electric motor hydraulic oil pump power system including a programmable controller having electric motor starting and stopping circuitry for hydraulic oil flow control. The circuitry having means to compare each electric motor running hours and select the motor with the least running hours to adjust oil flow to the desired amount. The system monitors oil pressure and flow, comparing such pressure and flow with the desired value and automatically adjusting the system to accomplish the correction. The controller also maintains safety sensing devices for high and low oil reservoir levels, oil filter condition limits, oil temperature limits, and means to maintain a constant oil pressure under load with load flow rates varying from very low to very high.
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Bower James H.
Sircus Brian
LandOfFree
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