公开(公告)号：US20150316192A1

公开(公告)日：2015-11-05

申请号：US14469671

申请日：2014-08-27

Applicant: DRESSER, INC.

Inventor： David Michael Jones ,  Lamar Edward May

IPC: F16L55/027 ,  F16K17/02

CPC classification number: F16K5/0407 ,  F16K5/12 ,  F16K17/02 ,  F16L55/02754 ,  Y10T137/7762

Abstract: A flow restrictor for use on a pilot operated relief valve (PORV) assembly with a pilot valve that regulates operation of a main valve to reduce pressure in a system or vessel. In one embodiment, the flow restrictor is configured with a plurality of flow modifying regions, namely, a first region and a second region that is spaced apart from the first region. These regions are configured to generate flow at the outlet of the flow restrictor that induces operation of the pilot valve that is favorable for operation of the main valve. In one example, the first region and the second region define, respectively, a first flow area and a second flow area for the flow pathway, wherein each are configured to assign a ratio of the second flow area to the first flow area with a value of less than 10.

Abstract translation: 用于先导式安全阀（PORV）组件的限流器，其具有调节主阀的操作以减小系统或容器中的压力的​​先导阀。 在一个实施例中，限流器配置有多个流动修改区域，即与第一区域间隔开的第一区域和第二区域。 这些区域构造成在限流器的出口处产生导致有利于主阀的操作的先导阀的操作的流动。 在一个示例中，第一区域和第二区域分别限定用于流动路径的第一流动区域和第二流动区域，其中每个流体区域和第二流动区域被配置为将第二流动区域与第一流动区域的比值分配给值 小于10。

公开(公告)号：USD739505S1

公开(公告)日：2015-09-22

申请号：US29489651

申请日：2014-05-01

Applicant: Dresser, Inc.

Designer： David Michael Jones ,  Lamar Edward May

公开(公告)号：US09759335B2

公开(公告)日：2017-09-12

申请号：US14469671

申请日：2014-08-27

Applicant: Dresser, Inc.

Inventor： David Michael Jones ,  Lamar Edward May

IPC: F16K5/04 ,  F16K5/12 ,  F16L55/027 ,  F16K17/02

CPC classification number: F16K5/0407 ,  F16K5/12 ,  F16K17/02 ,  F16L55/02754 ,  Y10T137/7762

Abstract: A flow restrictor for use on a pilot operated relief valve (PORV) assembly with a pilot valve that regulates operation of a main valve to reduce pressure in a system or vessel. In one embodiment, the flow restrictor is configured with a plurality of flow modifying regions, namely, a first region and a second region that is spaced apart from the first region. These regions are configured to generate flow at the outlet of the flow restrictor that induces operation of the pilot valve that is favorable for operation of the main valve. In one example, the first region and the second region define, respectively, a first flow area and a second flow area for the flow pathway, wherein each are configured to assign a ratio of the second flow area to the first flow area with a value of less than 10.