53.
    发明专利
    未知

    公开(公告)号:BR0110203B1

    公开(公告)日:2014-11-04

    申请号:BR0110203

    申请日:2001-04-13

    Abstract: An electro-mechanical actuator for operating a fluid control valve and controlling the operation of one or more field instruments, including other valve actuators. An electro-mechanical actuator has a drive unit and an electric motor driving the drive unit to open and close a fluid control valve to the fully opened and fully closed states under the control of monitoring limit open and limit closed sensors. Auxiliary control output lines connected to other field instruments from the electro-mechanical actuator drive associated fluid control valves to fully open and fully closed states. Limit open sensors and limit closed sensors monitor the valve open and closed state of the other respective field instruments and through a respective pair of auxiliary travel input lines to the electro-mechanical control the field instrument.

    MANUAL HYDRAULIC OVERRIDE PUMPS FOR USE WITH ACTUATORS

    公开(公告)号:CA3147601A1

    公开(公告)日:2021-02-04

    申请号:CA3147601

    申请日:2020-07-16

    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.

    THERMAL VOLUME CONTROL FOR AN ACTUATOR ASSEMBLY

    公开(公告)号:CA2971135A1

    公开(公告)日:2018-02-15

    申请号:CA2971135

    申请日:2017-06-16

    Abstract: An actuator assembly includes a cylinder disposed in an actuator housing, the cylinder having a cylinder interior is in fluid communication with a source of pressurized fluid. A ram member has a piston head within the cylinder interior, and pressure on the piston head moves the ram member. An end of the ram member acts on a collar having a collar interior, and an end of a rod member is disposed within the collar interior. The rod member is displaceable relative to the collar such that the end of the rod member does not contact the collar. Accordingly, fluid in the cylinder interior acting on the ram member may expand due to thermal expansion without damaging a hard stop at an opposite end of the rod member and without losing system pressure by triggering a relief valve.

    METHODS AND APPARATUS TO CHARGE ACCUMULATOR APPARATUS

    公开(公告)号:CA2766270C

    公开(公告)日:2016-06-28

    申请号:CA2766270

    申请日:2010-05-05

    Abstract: Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).

    METODOS Y APARATOS PARA CARGAR UN APARATO ACUMULADOR.

    公开(公告)号:MX2011014021A

    公开(公告)日:2012-06-01

    申请号:MX2011014021

    申请日:2010-05-05

    Abstract: Se describen métodos y aparatos para la carga de acumuladores. Un sistema de ejemplo para cargar un aparato acumulador (100) incluye un émbolo (104) colocado dentro de un alojamiento (102) para definir una primera cámara adyacente a un primer lado (106) del émbolo y una segunda cámara adyacente a un segundo lado (108) del émbolo. Una manguera de llenado (202) que tiene un cuerpo y un pasaje entre un primer extremo (306) de la manguera de llenado y un segundo extremo (308) de la manguera de llenado conectados de manera removible al émbolo para conectar de manera fluida al pasaje de la manguera de llenado a la segunda cámara del alojamiento cuando el acumulador se encuentra en una condición de carga. Una válvula (142) es conectada de manera fluida al émbolo para hacer posible que fluya el fluido a la segunda cámara del alojamiento por medio del émbolo (104) cuando la manguera de llenado está conectada al émbolo (104).

    Methods and apparatus to charge accumulator apparatus

    公开(公告)号:AU2010266661A1

    公开(公告)日:2011-12-22

    申请号:AU2010266661

    申请日:2010-05-05

    Abstract: Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).

    METHODS AND APPARATUS TO CHARGE ACCUMULATOR APPARATUS

    公开(公告)号:CA2766270A1

    公开(公告)日:2011-01-06

    申请号:CA2766270

    申请日:2010-05-05

    Abstract: Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).

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