Patent · US Expired

Automotive air conditioning apparatus

US5477688A · kind A · utility

16Cited by
5References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 1995
Grant dateDec 26, 1995
Priority date
Expiry dateFeb 24, 2015

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02G2243/04
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

An automotive air conditioning apparatus includes a Stirling refrigerator. In this refrigerator, many fins absorb heat from air in a passenger room, and a water jacket is connected to the cooling circuit of the vehicle engine by way of a pipe. Since an operating gas absorbs heat at the time of isothermal expansion, fins cool the passenger room without using Freon. So, a condenser is not required. Although the operating gas is heated at the time of isothermal compression, the water jacket radiates heat to circulating water of the vehicle engine. So, an individual, i.e., radiator is not required.

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