发明名称 |
PUMP CONTROL AND METHOD OF OPERATING SAME |
摘要 |
A diaphragm metering pump (20) has an electromagnetic drive comprising a coil (28) and a movable armature (30). A shaft (40) connects the drive to the diaphragm (46). The electronic control consists of a pulser circuit (64) with the microprocessor (68). A position sensor (60) senses the position of the armature to determine the stroke length and 2 pressure transducers are sensing the differential between diaphragm (46) pressure and discharge pressure. The output of the sensors is processed in the microprocessor to apply half-wave rectified pulses to the coil according to the software checking sensor data against the calculated values for the maximum stroke length, rate and pressure. The power to the coil can be adjusted by phase control. Therefore the power consumption and the generation of heat in the armature area can be reduced.
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申请公布号 |
WO0022298(A2) |
申请公布日期 |
2000.04.20 |
申请号 |
WO1999US23136 |
申请日期 |
1999.10.06 |
申请人 |
LIQUID METRONICS INCORPORATED |
发明人 |
KILAYKO, ENRIQUE, L.;RYAN, LIAM |
分类号 |
F04B13/00;F04B17/04;F04B43/02;F04B43/04;F04B49/06;F04B49/14;(IPC1-7):F04B/ |
主分类号 |
F04B13/00 |
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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