Optimized heat pump apparatus for regulating motor vehicle temperature
US6915649B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 14, 2001 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | May 14, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2060/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This temperature regulation apparatus comprises a heat pump (12) comprising a main compression circuit (14) for a refrigerant fluid taking heat from a cold source (16) and transferring it to a hot source (18). The cold source (16) comprises a first heat exchanger (24) for exchanging heat between the refrigerant fluid and a liquid coolant thermally coupling the main refrigerant circuit (14) to a first secondary coolant circuit (26). The first secondary circuit (26) has selective connection means (40, 52, 54) for selectively connecting it to the upstream and downstream ends (48A, 48B) of a “heater” branch (48) of a cooling liquid circuit (46) of an exothermal part of the vehicle. The exothermal part is preferably a heat engine of the vehicle. The invention is applicable to air conditioning a motor vehicle cabin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.