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    • 86. 发明专利
    • Scroll compressor
    • 滚动压缩机
    • JPS59119080A
    • 1984-07-10
    • JP22607582
    • 1982-12-24
    • Hitachi Ltd
    • SUEFUJI KAZUTAKATOUJIYOU KENJIMOCHIZUKI TAKETOSHIUCHIKAWA NAOSHI
    • F04C18/02F04C28/16
    • F04C28/16F04C18/0261
    • PURPOSE:To prevent over-compression efficiently, by providing a discharge valve at the tooth space portion on the outside of the lap located in the range in which the volute angle lambda satisfies the following relationship, lambda1
    • 目的:为了有效地防止过度压缩,通过在位于蜗壳角度λ满足以下关系的范围内的膝盖外侧的齿空间部分处提供排气阀,λ1<λ1= pi1 + pi,其中 λ1是渐开线开始时的角度。 构成:提供在一圈的渐开线开始处的角度为λ1,第二排出口20形成在位于蜗壳外侧的齿间隔的位于蜗壳角度满足以下的范围内的部分 关系,λ1<λ1= pi1 + pi,在第二排出口20设置有具有锥形座面的盘阀21,该阀座端面的端面在阀21关闭时与齿隙表面基本平齐。 在压力比低于设计压力比的情况下,压缩室9c,9d中的压力比排出口10连通前的排出压力高。然而,如果压缩室9c,9d连通 在第二排出口20中,盘阀21打开,气体排出到排出室。 因此,能够有效地防止气体的过度压缩。
    • 89. 发明专利
    • Temperature-type expansion valve
    • 温度型膨胀阀
    • JPS58184373A
    • 1983-10-27
    • JP6531082
    • 1982-04-21
    • Hitachi Ltd
    • KURODA SHIGEAKIHATADA TOSHIOMOCHIZUKI TAKETOSHICHIAKI TAKAOATSUMI AKIRA
    • F16K31/68F16K17/38F25B41/06
    • F25B41/062F16K17/38
    • PURPOSE:To expand the usage range of flow control by using a bar member made of a shape memory alloy as a valve rod or by fitting a valve seat to a coil member made of the shape memory alloy so as to form the valve seat movably. CONSTITUTION:A bar member 12a made of a shape memory alloy is inserted in the middle of a valve rod 12. A refrigerant enters from below an expansion valve and flows in an arrow direction through a clearance between the lower section of a valve body 6 and a valve seat 3. At this time, if the temperature of a heat sensitive section 4 is elevated, the pressure of a space 1a is raised, the center of a diaphragm 1 is moved downward, this movement forces the valve body 6 to move through the valve rod 12, the clearance between the lower section of the valve body 6 and the valve seat 3 is made larger, and the refrigerant flow is increased. If the temperature of the heat sensitive section 4 is lowered, the clearance between the valve body and valve seat is made smaller on the contrary, and the flow is decreased.
    • 目的:通过使用由形状记忆合金制成的棒构件作为阀杆来扩大流量控制的使用范围,或通过将阀座装配到由形状记忆合金制成的线圈构件上,以便可移动地形成阀座。 构成:由形状记忆合金制成的棒状部件12a插入阀杆12的中间。制冷剂从膨胀阀的下方进入,并且沿箭头方向流过阀体6的下部和 此时,如果热敏部分4的温度升高,则空间1a的压力升高,隔膜1的中心向下移动,该运动迫使阀体6移动通过 阀杆12,阀体6的下部与阀座3之间的间隙变大,制冷剂流量增加。 如果热敏部分4的温度降低,则阀体和阀座之间的间隙相反地变小,并且流量减小。