Vane pump consisting of a two-part stator
US8403656B2 · kind B2 · utility
4Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Sep 16, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary displacement pump includes a stator (42) fixed in a housing (20), a rotor including a shaft portion (8), a radially protruding web (12), a scraper (110) having an engagement slot (112) engaging the protruding web (12). A guide (92) retains the scraper (110) in a circumferential direction and allows the scraper (110) to move reciprocatingly in a substantially axial direction. The stator (42) includes first and second members that abut each other in abutment areas having a circular arc configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.