Coupling for feeding a heat-exchange medium to a rotating body
US5156523A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/93
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling for feeding a heat-exchange fluid between a stationary supply and a rotating body comprises a tubular rotor shaft fixed to the rotating body and rotatable about and centered on an axis and a nonrotatable housing fixed stationarily adjacent and surrounding the body. This housing is provided with an inlet connected to the supply and is formed with a passage permitting fluid communication between the supply and the body through the shaft. At least one roller bearing rotationally supports the shaft in the housing and outer and inner seals axially flanking the bearing define an annular substantially closed chamber containing the bearing and each seal between the housing and the shaft. The inner seal has an inner side exposed to the fluid and the outer seal has an outer side exposed to the surrounding atmosphere. A coolant is circulated through the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.