发明名称 |
Automatic pump control system with variable test cycle initiation frequency |
摘要 |
A pump control system for adjusting the frequency of operation of a pump motor in accordance with the demand on the pump includes means for periodically actuating the pump motor to initiate operation of the pump at periodic intervals; sensor means for sensing the condition of the operating pump motor; and means responsive to the sensor means for adjusting the periodic interval to conform the operation of the pump motor to demand on the pump.
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申请公布号 |
US5549456(A) |
申请公布日期 |
1996.08.27 |
申请号 |
US19940281231 |
申请日期 |
1994.07.27 |
申请人 |
RULE INDUSTRIES, INC. |
发明人 |
BURRILL, JAMES T.;ANASTOS, WILLIAM |
分类号 |
F04B49/06;H02H3/00;H02H7/08;(IPC1-7):F04B49/00 |
主分类号 |
F04B49/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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