发明名称 |
Pressure-controlled liquid supply system and pump control device for use therein |
摘要 |
A pressure-controlled liquid supply system uses a pump control device to switch a pump on and off in response to a pressure level in the pumped liquid. The pump control device minimizes short cycling of the pump by preventing shut off of the pump while a flow is present through the pump control device and by delaying the shut off of the pump. The pump control device also avoids a significant drop in the output pressure by creating a reduced pressure zone, which provides the switch pressure used to switch the pump off. |
申请公布号 |
US8393875(B2) |
申请公布日期 |
2013.03.12 |
申请号 |
US20100860356 |
申请日期 |
2010.08.20 |
申请人 |
PRESCOTT RUSSELL E.;R. E. PRESCOTT CO., INC. |
发明人 |
PRESCOTT RUSSELL E. |
分类号 |
F04B49/02;E03B11/16 |
主分类号 |
F04B49/02 |
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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