Pump including a rotor and a plurality of blocking device elements for blocking a pump duct
US11125228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jun 26, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blocking device for a pump having a rotor that is rotatable about a rotation axis in a pump duct 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, wherein the blocking device comprises a plurality of blocking elements which are configured to block the pump duct in the axial direction on both sides of the rotor collar, wherein each of the plurality of blocking elements has a slot with a U-shaped sealing profile for abutting against the rotor collar, a sealing face for abutting against the rotor hub, and two contacting faces for abutting against a seat of the pump duct and/or against a contacting face of another blocking element of the plurality of blocking elements, and to a pump having a corresponding blocking device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.