PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING |
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| 申请号 | PCT/US2012026034 | 申请日 | 2012-02-22 | 公开(公告)号 | WO2012116016A3 | 公开(公告)日 | 2013-07-11 |
| 申请人 | MICROPUMP INC; GRIMES DAVID J; | 发明人 | GRIMES DAVID J; | ||||
| 摘要 | Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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