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    • 40. 发明授权
    • Rotary vane compressor with suction passage changing in two steps
    • 旋转叶片式压缩机,吸入通道分两步改变
    • US4536141A
    • 1985-08-20
    • US554293
    • 1983-11-01
    • Teruo Maruyama
    • Teruo Maruyama
    • F04C18/00F04C18/344F04C28/18F04C29/12F04C29/08
    • F04C29/12F04C28/18
    • A rotary compressor which includes a rotor into which vanes are slidably provided, the rotor and vanes being rotatably mounted in a non-circular cylinder having side plates fixed to both sides thereof. The rotor, cylinder, and side plates define sealing spaces at respective ends of which are provided suction bores and discharge bores. Between the blades and also bounded by the rotor, side plates and cylinder are blade chambers which rotate with the rotor and vanes across the suction bores and discharge bores so that the pressure in the blade chambers during a suction stroke of the compressor utilizes a suction loss which is lower than the pressure of a refrigerant supply source to carry out suppression of the refrigerating capacity during high speed rotation of the rotor. The passages of communication from the suction bores to the blade chambers have effective areas which are smaller during the second half of each suction stroke than during the first half thereof, thereby obtaining an effective suppression of refrigerating capacity during high speed rotation of the rotor, while maintaining low torque at low speed and a high volumetric efficiency.
    • PCT No.PCT / JP83 / 00067 Sec。 371日期:1983年11月1日 102(e)1983年11月1日日期PCT提交1983年3月3日PCT公布。 公开号WO83 / 03123 日期:1983年9月15日。一种旋转压缩机,其包括可滑动地设置有叶片的转子,所述转子和叶片可旋转地安装在具有固定在其两侧的侧板的非圆柱体中。 转子,气缸和侧板限定在其两端设有吸孔和排气孔的密封空间。 在叶片之间并且还由转子限定的侧板和圆柱体是叶片室,其随着转子和叶片跨越抽吸孔和排出孔而旋转,使得在压缩机的吸入冲程期间叶片室中的压力利用吸力损失 其低于制冷剂供给源的压力,以在转子的高速旋转期间抑制制冷能力。 从抽吸孔到叶片室的通信通道在每个吸入冲程的后半段期间比在其前半部分期间具有更小的有效区域,从而在转子的高速旋转期间有效地抑制制冷能力,同时 在低速下保持低扭矩和高容积效率。