| 摘要 |
PROBLEM TO BE SOLVED: To greatly extend a life of hose existing in a peristaltic pump and improve pump capacity by increase of pump circulation speed. SOLUTION: A pump for circulating a medium comprises an elastically deformable hose 4 which lies against a pressing surface, and has a medium inlet and a medium outlet; and pressing elements 9, 10 which move along the hose and press the hose part in contact with a pressing element against the pressing surface while locally compressing and closing the hose part; whereby medium is drawn in via the medium inlet and discharged under pressure via the medium outlet. The pump has the special feature that the pressing surface, the hose and the pressing elements are situated in a bath with lubricant, and that the hose consists solely of a thermoplastic vulcanizate. COPYRIGHT: (C)2008,JPO&INPIT
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