公开(公告)号：WO2021021455A1

公开(公告)日：2021-02-04

申请号：PCT/US2020/042315

申请日：2020-07-16

Applicant: EMERSON PROCESS MANAGEMENT, VALVE AUTOMATION, INC.

Inventor： CHRISTOPHERSON, Matt ,  CHENG, Michael ,  SUN, Joseph

IPC: F04B9/14 ,  F04B23/02 ,  F04B53/10 ,  F04B53/16 ,  F15B20/00 ,  F16K11/074

Abstract: Manual hydraulic override pumps for use with actuators are described herein. An example apparatus includes a manifold including a reservoir port to be fluidly coupled to a reservoir of fluid, a pump port to be fluidly coupled to a pump, a first actuator port to be fluidly coupled to a first chamber of an actuator, and a second actuator port to be fluidly coupled to a second chamber of the actuator. The example apparatus also includes a rotor disposed in a cavity formed in the manifold. The rotor is rotatable between a first actuating position in which the rotor fluidly couples the first actuator port and the pump port, and a second actuating position in which the rotor fluidly couples the second actuator port and the pump port.

公开(公告)号：WO2020068892A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/052817

申请日：2019-09-25

Applicant: EMERSON PROCESS MANAGEMENT VALVE AUTOMATION, INC.

Inventor： SUN, Joseph ,  CHRISTOPHERSON, Matt ,  SCHREUDER, Edwin

IPC: F04B9/14 ,  F04B19/02

Abstract: Apparatus that prevent side load in hydraulic override pumps are disclosed herein. An example apparatus includes a lever rotatably mounted to a support, a pump cylinder rotatable about a first end of the pump cylinder, and a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever, wherein the pump cylinder rotates when the pump rod moves within the pump cylinder.

公开(公告)号：EP4004369A1

公开(公告)日：2022-06-01

申请号：EP20751442.3

申请日：2020-07-16

Applicant: Emerson Process Management Valve Automation, Inc.

Inventor： CHRISTOPHERSON, Matt ,  CHENG, Michael ,  SUN, Joseph

IPC: F04B9/14 ,  F04B23/02 ,  F04B53/10 ,  F04B53/16 ,  F15B20/00 ,  F16K11/074