Rotary pipe joint
US4323268A · kind A · utility
9Cited by
19References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Apr 7, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L53/70
- 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.