Mechanical slip failsafe system for a heavy duty multi-speed fan clutch
US8522945B2 · kind B2 · utility
4Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2007 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/70424
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A failsafe system for a heavy-duty multi-speed clutch includes a thermal valve coupled within a clutch pressure tube orifice circuit protecting a clutch pack from heat degradation. When oil temperature of the clutch reaches a level where thermal degradation can occur, the thermal valve allows flow into a clutch piston system at a maximum operating pressure, thereby engaging a clutch drive and cooling the clutch to a safe condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.