Fluid line with integrated unpressurized return flow
US6123112A · kind A · utility
6Cited by
12References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Oct 2, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a fluid conduit (9) for hydraulic regulating devices of machines, in particular turbo machines, preferably of industrial turbines, the fluid conduit (9) comprising at least one pressure-transmitting inner conduit (4), which is surrounded by a hydraulically leaktight, burst-proof jacket (5). The space between the inner conduit (4) and the jacket (5) forms an unpressurized outer conduit (6), making it possible to dispense with a separate return conduit while reliably preventing fluid from escaping in the case of leaks in the pressure-transmitting inner conduit (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.