Rotary pipe joint
US4234215A · kind A · utility
6Cited by
15References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1978 |
| Grant date | Nov 18, 1980 |
| Priority date | — |
| Expiry date | Jun 5, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L53/75
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure-tight, rotary pipe coupling joins rotating, high temperature fluid transmission lines. Pressure seals of the coupling are maintained at a temperature lower than that of the high temperature or primary transmitted fluid by thermally insulating the seals from the high temperature fluid and by pumping a fluid coolant through annular cavities located adjacent the seals. A balanced pressure structure substantially eliminates thrust forces between the coupling members and reduces rotating friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.