Viscous clutch assembly
US5960918A · kind A · utility
43Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Mar 27, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2037/007
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A viscous fluid clutch includes a rotor attached to an output from an engine, a stator attached to a fan assembly and a coil assembly having at least a portion attached to the stator. A first gap is defined between the rotor and the stator and a second gap is defined between the rotor and the coil assembly. The first and second gaps are filled with a magnetorheological (MR) fluid. The coil assembly creates a magnetic field in the first and second gaps to vary the viscosity of the MR fluid to produce a variable speed viscous fluid clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.