公开(公告)号：WO2022260856A1

公开(公告)日：2022-12-15

申请号：PCT/US2022/030651

申请日：2022-05-24

Applicant: DRESSER-RAND COMPANY

Inventor： SANFORD, Joel, T.

IPC: F04B39/10 ,  F04B7/00 ,  F04B7/02 ,  F04B49/03

Abstract: An inlet valve system (10), as may be used for a cylinder chamber (20) of a compressor, such as a reciprocating compressor, is disclosed. A plurality of inlet valves (250) is movable between an open position and a closed position. The plurality of inlet valves is arranged between an unloader chamber (120) and a cylinder chamber (20) of the compressor. A control valve (270, 270') is coupled to a controller (300) and is movable between a first position and a second position to close the inlet valves. A check valve (260, 260') is movable between a first position and a second position to open the inlet valves. The check valve and the control valve are respectively fluidly coupled to a control chamber (252), which is decoupled from any pressure control external to cylinder chamber (20).

公开(公告)号：WO2007120506A2

公开(公告)日：2007-10-25

申请号：PCT/US2007/008149

申请日：2007-04-02

Applicant: DRESSER-RAND COMPANY ,  SANFORD, Joel, T.

Inventor： SANFORD, Joel, T.

IPC: F16K15/02

CPC classification number: F04B39/08 ,  Y10T137/2605 ,  Y10T137/2607

Abstract: A closing element is for a valve assembly of a compressor unloader, the compressor including a casing with a compression chamber, the unloader including a housing defining a chamber. The valve assembly has a base between the compression and unloader chambers, a passage connecting the two chambers, a seat about the passage, and a stem bore within the base having a control chamber. The closing element includes a main body movably disposed within the stem bore and having a sealing surface disposeable against the valve seating surface to obstruct the valve passage and a control end surface within the bore control chamber. A sealing member disposed about the main body prevents flow between the control chamber and the valve passage. The main body and/or the sealing member is configured such that the main body is radially moveable to align the body sealing surface with the valve seat.

Abstract translation: 闭合元件用于压缩机卸载器的阀组件，该压缩机包括具有压缩室的壳体，该卸载器包括限定腔室的壳体。 阀组件具有在压缩室和卸载室之间的基座，连接两个室的通道，围绕通道的座以及具有控制室的底座内的杆孔。 关闭元件包括可移动地设置在杆孔内的主体，并且具有可以抵靠阀座表面的密封表面，以阻塞阀通道和孔控制室内的控制端表面。 围绕主体设置的密封构件防止了控制室和阀通道之间的流动。 主体和/或密封构件被构造成使得主体可径向移动以将主体密封表面与阀座对准。