Fluid friction coupling with closing slide
US5004085A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Mar 7, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D35/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a fluid friction coupling (1) with a housing (2) and a hub (4) rotatably received within the housing. The interior (11) of the housing is divided into a main chamber (22) and a receiving chamber (23). Only the main chamber (22) is occupied by inner plates (8) and outer plates (6) of the coupling. The two chambers (22, 23) are separated by separating plates (18, 19). However, the separating plates (18, 19) comprise closable apertures (24) each of which is associated with a slide (25). The closing slides (25) open the apertures (24), thereby providing a passage between the two chambers (22, 23) when a certain rotational speed is exceeded. As a result, the possibility of a transfer of the coupling (1) into the hump mode is reduced at high rotation speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.