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    • 1. 发明授权
    • Reverse rotation protection for a scroll compressor using a valve means
    • 使用阀门装置对涡旋压缩机进行反转保护
    • US6095764A
    • 2000-08-01
    • US160
    • 1998-01-28
    • Yoshitaka ShibamotoMikio KajiwaraKeiji YoshimuraShuusaku Ueda
    • Yoshitaka ShibamotoMikio KajiwaraKeiji YoshimuraShuusaku Ueda
    • F04C27/00F04B49/00F04C18/02F04C28/26F04C28/28F04C29/12F16K15/00
    • F04C29/126F04C28/28F04C2270/72F04C28/265
    • A scroll compressor (A) includes a barrier wall (25) which divides the internal cavity of a casing (1) into a discharge chamber (22) and a suction chamber (23) and has a discharge opening (25b) for providing the communication of the compartments (22) and (23), a check valve (27) operable to prevent a flow of gas from the discharge chamber (22) into the suction chamber (23), and a scroll compression mechanism (3) which is provided in the suction chamber (23), which a space (36) left between the mechanism (3) and the barrier wall (25), for discharging compressed gas into the space (36). In addition, a valve (31) is provided in the space (36) which has a seal member (32) operable to interrupt the communication of an inner compartment (34) with an outer compartment (35) of the space (36) during the correct operation period while on the other hand providing the communication during the reverse operation period. Without suffering a drop in performance during the correct operation period, frictional heat occurring at the forward end surfaces of involute bodies (10b) and (11b) of fixed and moving scrolls (10) and (11) is positively removed to outside the scroll compression mechanism (3), thereby preventing these end surfaces from undergoing seizing.
    • PCT No.PCT / JP97 / 01799 Sec。 371日期1998年1月28日 102(e)1998年1月28日PCT PCT 1997年5月27日PCT公布。 公开号WO97 / 45642 日本1997年12月4日涡旋压缩机(A)包括将壳体(1)的内腔分成排出室(22)和吸入室(23)的隔离壁(25),并具有排出口(25b) ),用于提供隔室(22)和(23)的连通;止回阀(27),其可操作以防止气体从排出室(22)流入吸入室(23),以及涡旋压缩机构 3),其设置在吸入室(23)中,空间(36)留在机构(3)和阻挡壁(25)之间,用于将压缩气体排放到空间(36)中。 另外,在该空间(36)中设置有一个阀(31),该空间(36)具有密封件(32),该密封件可操作以在内部隔室(34)与空间(36)的外隔室(35) 正确的操作时间,而另一方面在反向操作期间提供通信。 在正常运行期间不会降低性能,固定和移动涡卷(10)和(11)的渐开线本体(10b)和(11b)的前端表面产生的摩擦热肯定地被移除到涡旋压缩之外 机构(3),从而防止这些端面发生卡住。