公开(公告)号：US06076368A

公开(公告)日：2000-06-20

申请号：US18266

申请日：1998-02-04

申请人： Michael J Noble

发明人： Michael J Noble

IPC分类号： F25B41/04 ,  G05D7/06

CPC分类号： G05D7/0635 ,  F25B41/043 ,  F25B2400/22 ,  F25B2700/2104

摘要： A device for use in regulating the flow of a working fluid, such as a refrigerant, includes a body defining an axial opening, and a piston received within the axial opening. The piston is moveable in the body and has first and second ends. An actuator, which in one embodiment, is a stepper motor, is coupled to the first end of the piston for providing a force to the piston. An inlet and an outlet are coupled to the body such that the input, the output and the body define a passageway for the working fluid. An articulating seat assembly is coupled to the second end of the piston.

摘要翻译： 用于调节诸如制冷剂的工作流体的流动的装置包括限定轴向开口的主体和容纳在轴向开口内的活塞。 活塞可在主体中移动并具有第一和第二端。 在一个实施例中，是步进马达的致动器联接到活塞的第一端，以向活塞提供力。 入口和出口联接到主体，使得输入，输出和主体限定用于工作流体的通道。 铰接式座椅组件联接到活塞的第二端。