Pump and Blocking Element |
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| 申请号 | US15763424 | 申请日 | 2016-09-29 | 公开(公告)号 | US20180298897A1 | 公开(公告)日 | 2018-10-18 |
| 申请人 | Watson Marlow GmbH; | 发明人 | Achim Staedele; Eric Mayer; | ||||
| 摘要 | A pump having a rotor that is rotatable about a rotation axis and comprises a rotor hub and a rotor collar that extends from the rotor hub in the radial direction and encircles it in an undulating manner, a pump housing which forms a pump duct with the rotor, said pump duct connecting a first inlet/outlet space to a second inlet/outlet space and a blocking device which is arranged between the first inlet/outlet space and the second inlet/outlet space and which comprises a blocking element which blocks the pump duct in the axial direction on both sides of the rotor collar. The blocking device has a first seat and a second seat for the blocking element, wherein the spacing between the first seat and the second seat in the circumferential direction is greater than the spacing between a first contacting face and a second contacting face of the blocking element in the circumferential direction. The invention also relates to a pump having a blocking device which includes a chamber formed in the pump housing, wherein the chamber and the blocking element are configured such that an exchange duct is formed in the axial direction between an axially front fluid chamber and an axially rear fluid chamber on the opposite side of the rotor collar, and to a corresponding blocking element. | ||||||
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