Heating apparatus for vehicle
US5931380A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24V40/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A viscous heater for heating cooling water for cooling a water cooled engine is disposed in a cooling water circuit, and a front heater core is disposed in the cooling water circuit at a downstream side of the viscous heater with reference to a flow direction of the cooling water. Only when a heating operation is the maximum heating operation or the maximum heating operation is desired, a viscous clutch is turned on to transmit a driving force of the engine to the viscous heater. When the maximum heating operation is not desired, the viscous clutch is turned off so that the driving force of the engine is not transmitted to the viscous heater. Therefore, a load of the engine is reduced, and the cost for running the vehicle can be lowered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.