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    • 33. 发明授权
    • Rotary type gas compressor
    • 旋转式气体压缩机
    • US4708598A
    • 1987-11-24
    • US630599
    • 1984-07-13
    • Terumitsu SugitaHideo ShinozukaKoji Murayama
    • Terumitsu SugitaHideo ShinozukaKoji Murayama
    • F04B49/00F04C18/344F04C28/24F04C29/08
    • F04C28/24
    • A rotary vane-type gas compressor for use in car coolers and the like has a plurality of intake ports for each compression working chamber located at positions shifted from one another in the revolving direction of a rotor. At least one intake port which is located at the most forward position in the revolving direction of the rotor has a throttle valve which is controlled in response to the flow rate of suctioned gas, and the opening degree of the throttle valve is changed as the revolution speed of the rotor increases and creates a higher flow rate of suctioned gas. This reduces the effective compression working chamber volume, i.e., the volume which results when one vane has passed the position of the corresponding intake port to enclose gas in the compression working chamber. By such a construction, it is possible to restrain a substantial increase in both the amount of compressed gas to be discharged and the air-cooling capacity, even when the revolution speed of the rotor increases above 2000 rpm.
    • 用于汽车冷却器等的旋转叶片式气体压缩机具有多个用于每个压缩工作室的进气口,位于沿转子的旋转方向彼此偏移的位置。 位于转子旋转方向最前方位置的至少一个进气口具有响应于抽吸气体的流量而被控制的节流阀,并且节流阀的开度随着转速而改变 转子的速度增加并产生较高的吸入气体流速。 这降低了有效的压缩工作室体积,即当一个叶片已经通过相应的进气口的位置以在压缩工作室中包围气体时产生的体积。 通过这样的结构,即使当转子的转速增加到2000rpm以上时,也可以抑制要排出的压缩气体量和空气冷却能力的显着增加。