Patent ID: 7128304

Claim:
A control valve for a variable capacity compressor of integrated feed valve/extraction valve type, comprising: a main valve body having a discharge duct-communicating port, an outflow side crank chamber-communicating port, an inflow side crank chamber-communicating port, with an intake duct-communicating port, a feed valve hole interposed between the discharge duct-communicating port and the outflow side crank chamber-communicating port, and an extraction valve hole interposed between the inflow side crank chamber-communicating port and the intake duct-communicating port; a feed valve body capable of opening and closing the feed valve hole to a full or certain extent; an extraction valve body capable of opening and closing the extraction valve hole; and a solenoid magnetization portion capable of actuating the opening and closing of the feed valve body and of the extraction valve body; wherein a first status may be checked when the feed valve body is fully opened and the extraction valve body is actuated to secure a minimum flow rate, a second status may be checked when the feed valve body is fully closed and the extraction valve body is fully opened, and an intermediate status between the first status and the second status may be checked when the feed valve body is opened to a certain extent depending on the value of control current, and wherein a predetermined flow rate is effectuated irrespective of the opening degree of the extraction valve body.