the link is disengageable from one member of the driven member and the drive member application_number US 68774103 A description embodiments of the invention will hereby be described with reference to the drawings in fig1 an air conditioning system includes a refrigeration cycle and a controller thereof the refrigeration cycle includes a swash plate compressor 100 to compress a vaporized coolant the refrigeration cycle includes a condenser 111 to liquefy a coolant the refrigeration cycle includes an evaporator 121 to vaporize a liquefied coolant the compressor 100 includes a pulley 4 for drive which is coupled to a pulley 101 a of engine 101 using a belt b the compressor includes an electronic control valve 102 downstream the condenser 111 has a cooling fan 113 the condenser includes a liquid tank 112 the controller includes an ac computer 131 driven by a battery 133 the ac computer 131 obtains information from sensors s 1 s 6 s 7 and s 8 the sensor s 1 detects a temperature at the outlet of evaporator 121 the sensor s 6 detects a temperature of vehicle 39 s interior the sensor s 7 has a solar radiation sensor the sensor s 8 detects a temperature outside the vehicle the ac computer 131 controls the electronic control valve 102 the controller includes eccs electronic concentrated engine control system 132 the eccs 132 obtains information from sensors s 2 s 3 s 4 and s 5 to control engine 101 the sensor s 2 detects vehicle 39 s speed the sensor s 3 detects the opening rate of an accelerator the sensor s 4 detects the.