Dry-running piston rod sealing arrangement, and method for sealing a piston rod using one such arrangement
US7815193B2 · kind B2 · utility
12Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2005 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a dry-running piston rod sealing arrangement (1) for sealing a piston rod (2) mounted in a longitudinally displaceable manner. The sealing arrangement comprises at least one sealing ring (5) having a sealing surface (5a), an actuator (7), a sensor (8), and a chamber ring (3) containing the sealing ring (5). The actuator (7) comprises an active connection in relation to the sealing ring (5), such that the sealing surface (5a) can be radially displaced in relation to the piston rod (2). The actuator (7) can be controlled according to a measuring value detected by the sensor (8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.