Pump |
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| 申请号 | JP20990982 | 申请日 | 1982-11-29 | 公开(公告)号 | JPS5999084A | 公开(公告)日 | 1984-06-07 |
| 申请人 | Matsushita Electric Ind Co Ltd; | 发明人 | NISHIUCHI MASAYASU; KOSEKI WASUKE; KOBAYASHI KATSUO; KATAYAMA HITOSHI; | ||||
| 摘要 | PURPOSE:To eliminate the possibility of biting-in hairs or the like into rotating parts and prevent the deterioration of the performance of the pump due to foreign materials by a constitution wherein the pump is constituted by a casing and a movable body contacting with one or multiple points of the internal surface of the casing through an elastic film. CONSTITUTION:The elastic film 6 is extended on the internal surface of the casing 2 provided with a suction port 4 and a delivery port 5 and is pushed against the internal surface of the casing 2 by arms 8 equipped with compressible rollers connected to a rotary driving shaft 7. When the rotary driving shaft 7 is rotated, the arms 8, equipped with the compressible rollers, are rotated under a condition that they are pushing the elastic film 6 against the internal surface of the casing 2. In this case, each centers of the casing 2 and the rotary driving shaft 7 are eccentric, therefore, a volume, formed by the casing 2 and the elastic film 6, is different depending upon the position of the casing 2. Then, the action of pump is effected by utilizing the change of the volume. According to this method the performance of the pump will never be deteriorated by the foreign materials. | ||||||
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| 说明书全文 | |||||||
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