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    • 1. 发明申请
    • SEALS
    • 密封
    • US20130276894A1
    • 2013-10-24
    • US13650460
    • 2012-10-12
    • Vetco Gray Controls Limited
    • Christian BorchgrevinkJon Flidh
    • F16K25/00
    • F16K25/00F16J15/52F16K41/10Y10T137/0318Y10T137/4456
    • An apparatus is provided. The apparatus comprises a housing, a body defining a first chamber and an elongate actuator member mounted for reciprocal movement, at least a part of the actuator member being enclosed by the housing. The apparatus further comprises a seal compartment between the first chamber and a compartment of the housing, the actuator member extending from the housing to the first chamber through the seal compartment. The seal compartment comprises a fluid filled seal chamber enclosing at least a portion of the actuator member and located within the housing, wherein a volume comprising a volume between the fluid filled seal chamber and the actuator member remains substantially constant during movement of the actuator member.
    • 提供了一种装置。 该装置包括壳体,限定第一室的主体和安装成往复运动的细长致动器构件,致动器构件的至少一部分被壳体包围。 所述装置还包括在所述第一室和所述壳体的隔间之间的密封室,所述致动器构件通过所述密封隔室从所述壳体延伸到所述第一室。 密封室包括流体填充的密封室,其封闭致动器构件的至少一部分并且位于壳体内,其中包括在填充液体的密封腔和致动器构件之间的体积的体积在致动器构件的运动期间保持基本恒定。