Motor vehicle air conditioning and heating system with bi-level mode
US4828018A · kind A · utility
11Cited by
19References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00171
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motor vehicle air conditioning and heating system having an evaporator and a valve controlled heater core is provided with a cold air bypass around the heater core and upper and lower compartment outlets which outlets and bypass are controlled by a single mode valve to provide a bi-level mode. In one embodiment, the mode valve comprises a singular valve element. In another embodiment, the mode valve comprises two valve elements which are linked together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.