Air conditioning system
US7080520B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2501
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention is based on a climate control system for a vehicle that is driven by an internal combustion engine (10), having a heating heat exchanger (24) which is connected to a coolant loop (12) of the engine (10) and is preceded upstream of a blower (48) by an evaporator (44), and a compressor (50) in a refrigerant loop (40), during a cooling mode, pumps a refrigerant via a gas cooler (42) and via an expansion valve (54) to the evaporator (44) and during a heating mode pumps it to the evaporator bypassing the gas cooler (42), and between the coolant loop (12) and the refrigerant loop (40) a coupling heat exchanger (38) is provided. It is proposed that the coupling heat exchanger (38) is disposed upstream of the gas cooler (42) on the side of the refrigerant loop (40) on the compression side of the compressor (50); that a bypass line (60) is connected parallel to the gas cooler (42), and the flow through the gas cooler (42) and the bypass line (60) is controlled as a function of operating parameters via a switching valve (62) in the bypass line (60) and one switching valve (64, 66) each at the inlet and outlet, respectively, of the gas cooler (42); and that in the heating mode, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.