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    • 6. 发明授权
    • Scroll compressor
    • 涡旋压缩机
    • US5531578A
    • 1996-07-02
    • US403522
    • 1995-03-13
    • Tsuyoshi TakemotoShigeru HisanagaYasushi WatanabeTetsuhiko Fukanuma
    • Tsuyoshi TakemotoShigeru HisanagaYasushi WatanabeTetsuhiko Fukanuma
    • F04C27/00F04C18/02F04C29/00F04C29/02F01L1/04
    • F04C29/02F04C29/0057
    • A large diameter portion of a rotating shaft is supported by an opening in a front housing via a radial bearing. An outer race of the bearing is in contact with an inner, rear surface of the housing as a shoulder portion of the opening. The inner surface is forwardly recessed, so that a small chamber is formed between the housing and the bearing unit. The housing has a stopper projection at a rear end of an opening to which a shaft seal unit is inserted. The projection is axially projected to a faced front surface of the large diameter portion of the shaft, while a seal chamber is formed between the shaft seal unit and the large diameter portion. The seal chamber is in communication with the small chamber. A plurality of circumferentially spaced grooves for holding lubricant are formed at the recessed surface for forming the small chamber.
    • 旋转轴的大直径部分通过径向轴承由前壳体中的开口支撑。 轴承的外圈与外壳的内表面接触,作为开口的肩部。 内表面向前凹入,使得在壳体和轴承单元之间形成小室。 外壳在其中插入有轴封单元的开口的后端具有止动器突起。 突出部轴向地突出到轴的大直径部分的前表面,同时在轴密封单元和大直径部分之间形成密封室。 密封室与小室连通。 在用于形成小室的凹面处形成有用于保持润滑剂的多个周向间隔开的槽。