AIR CONDITIONING SYSTEM


  1. CONSTRUCTION


    1. The compressor with pulley assembly is a continuously variable capacity type with a capacity that varies in accordance with the cooling load of the air conditioning.

      Figure 1. VCS-12E

      A001MIPC01
      *1 Shaft *2 Solenoid Control Valve

      Figure 2. 6SES12C

      A001N0SC01
      *1 Shoe *2 Crank Chamber
      *3 Shaft *4 Lug Plate
      *5 Piston *6 Cylinder
      *7 Solenoid Control Valve - -

  2. OPERATION


    1. The crank chamber is connected to the suction passage. A solenoid control valve is provided between the suction passage (low pressure) and the discharge passage (high pressure).

    2. The solenoid control valve operates under duty cycle control in accordance with the signals from the air conditioning amplifier assembly.

      A001MI2C01
      *1 Suction Passage *2 Crank Chamber
      *3 Piston *4 Discharge Passage
      *5 Solenoid Control Valve *6 Air Conditioning Amplifier Assembly

    3. When the solenoid control valve closes (the solenoid coil is energized), a difference in pressure is created and the pressure in the crank chamber decreases. Then, the pressure applied to the right side of the piston becomes greater than the pressure applied to the left side of the piston. This compresses the spring and tilts the lug plate. As a result, the piston stroke increases and the discharge capacity increases.

      A001MLAC01
      *1 Suction Passage *2 Crank Chamber
      *3 Piston *4 Discharge Passage
      *5 Solenoid Control Valve *6 Air Conditioning Amplifier Assembly
      *a Crank Chamber Pressure + Spring Force *b Piston Stroke: Large

    4. When the solenoid control valve opens (the solenoid coil is not energized), the difference in pressure disappears. Then, the pressure applied to the left side of the piston becomes the same as the pressure applied to the right side of the piston. Thus, the spring elongates and eliminates the tilt of the lug plate. As a result, there is a small piston stroke and the discharge capacity decreases.

      A001MZYC01
      *1 Suction Passage *2 Crank Chamber
      *3 Piston *4 Discharge Passage
      *5 Solenoid Control Valve *6 Air Conditioning Amplifier Assembly
      *a Crank Chamber Pressure + Spring Force *b Piston Stroke: Small