Heat generator for vehicle heating system
US6082316A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1997 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/185
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved viscous heater for a vehicle heating system is disclosed. The viscous heater has a heat generator including a rotor that agitates viscous fluid to generate the heat. A vehicle engine transmits its rotation to the rotor via an electromagnetic clutch. A thermosensitive switch is attached to the heat generator and selectively connects and disconnects the electromagnetic clutch with electric power source. The thermosensitive switch is selectively activated and deactivated based on magnitude of the heat generated by the agitated viscous fluid. The thermosensitive switch is deactivated when the ambient temperature is in excess of the predetermined uppermost value (T) and activated when the temperature in smaller than the predetermined lowermost value (T-.DELTA.T).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.