Dual loop heat and air conditioning system
US6640889B1 · kind B1 · utility
71Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | May 18, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00928
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle heating and cooling system having a first coolant loop selectively connecting an engine cooling system with a heater core or a first coolant/refrigerant heat exchanger, a second coolant loop connecting a second coolant/refrigerant heat exchanger and the heater core to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that provides for conventional cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the coolant loops, to provide heat to the vehicle passenger compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.