Fluid friction clutch
US4432444A · kind A · utility
7Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Mar 12, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D35/022
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a fluid friction clutch, comprising a drive disk having at least one first working surface; a housing enclosing said drive disk and being mounted rotatably with respect thereto, the housing including at least one second working surface in spaced relationship with the first working surface to form a gap therebetween; a device for selectively introducing a fluid working medium into the gap; and a device for removing the fluid working medium from the gap, wherein the first and/or second working surfaces comprise roughened surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.