Control device for air conditioner for automobile

摘要

The disclosure describes a control device for the airconditioning device for automobile in which a rolling piston type capacity changeable compressor which can be operated with a single piston cylinder by closure of one of two coaxial cylinders in the compressor by means of an opening and closing valve is used and selection is made as to whether single cylinder or double cylinders should be employed for operation of the compressor depending on a cooling load to be imposed on it.