Title:
CAR AIR-CONDITIONER
Document Type and Number:
Japanese Patent JPS59149811
Kind Code:
A
Abstract:
PURPOSE: In a car air-conditioner equipped with inner air circulation, outer air exchange damper, to exchange efficiently by performing exchange control of inner/outer air exchange damper by the differential temperature of inner/outer air.
CONSTITUTION: When cabin temperature exceeds over outer air temperature upon opeation of air-conditioner, resistance of inner air thermister 1 will drop to bring plus input of amplifier 2 higher than minus input to turn on a transistor 3 thus to function a solenoid valve 4. Consequently an inner/outer air exchange damper is exchanged to outer air lead-in. With such arrangement, inner/ outer air exchange can be performed automatically and efficiently.
Inventors:
FUKUHARA YOSHIHIRO
Application Number:
JP2410383A
Publication Date:
August 27, 1984
Filing Date:
February 15, 1983
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B60H1/00; (IPC1-7): B60H3/00
Attorney, Agent or Firm:
Toshio Nakao