Patent · US Expired

Air-conditioning system for a motor vehicle

US6449974B1 · kind B1 · utility

3Cited by
4References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 26, 2001
Grant dateSep 17, 2002
Priority date
Expiry dateJun 26, 2021

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF25B29/003
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

An air-conditioning system for a motor vehicle has a circuit (14) which is capable of being changed over from cooling to heating. The system has a heater (22), through which the air to be conditioned flows, a cooling heat exchanger (18) acting as an evaporator in the cooling mode, and an additional heat exchanger (20) capable of being selectively used for providing auxiliary heat in the heating mode. The additional heat exchanger can be advantageously utilized by operating it as an auxiliary cooling heat exchanger, acting as an evaporator, in the cooling mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.