High pressure rotary pump in a pot housing with a pressure cap
US7086832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2003 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Feb 11, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/426
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The high pressure rotary pump in a pot housing includes a pressure cap (3). The latter has a flange part with a flange (4) with which the pressure cap is fastened to an end face and annular sealing surface (20) of a housing (2) by being screwed into place. The flange is elastically deformed by being screwed into place. The sealing surface of the housing in the region of a base zone of the flange stands in contact on this with a second sealing surface (40). The two sealing surfaces (20, 40) lie on two at least approximately radially extending conical or annular surfaces prior to the being screwed up. These two surfaces enclose an angle χ which opens outwardly with respect to a central axis (101). After the screwing into place of the flange, the two sealing surfaces are pressed onto one another due to its elastic deformations and thus the angle between the sealing surfaces is equal to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.