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：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