吸气原理 Breathe in principle 设计螺杆进气侧吸气口时，应让压缩室能够充分吸气，而螺杆压缩机没有进气和排气阀组进气，而是依靠开关调节阀进行调节，当主副转子齿沟空间转动到进气端壁开口位置时，空间变得最大，齿沟空间和进气口自由空气接通，排气时齿沟空气全部被排出，使齿沟达到真空，转到进气口位置时，外界空气能够吸入，沿轴向向主副转子齿沟内流入，齿沟充满空气时，转子进气侧端面转离进气口，从而使齿沟空气达到封闭状态。 Design screw air inlet side suction mouth, should let the compression chamber can inhale fully, and screw compressor not intake air intake and exhaust valve group, relying instead on switching regulator is adjusted, when the main rotor tooth groove when moving to the inlet end wall open position space, the space becomes the biggest, the tooth groove space and free air through the intake and exhaust the tooth groove all the air is expelled, make tooth groove to vacuum, turn to the inlet position, outside air can be inhaled, towards the main rotor tooth groove along the axial inflow, tooth groove is filled with air, the rotor inlet side face from the air inlet, allowing air to closed the tooth groove.