Electric Valve Actuator with Energy Harvesting Position Detector Assemblies

    公开(公告)号:US20210131586A1

    公开(公告)日:2021-05-06

    申请号:US16673057

    申请日:2019-11-04

    Abstract: An absolute valve position detector with self-powering capabilities is provided. An energy-harvesting position sensor is activated by the rotation of a pinion that rotates according to the opening and closing of the valve. The sensor outputs an electrical pulse that may be simultaneously used to provide power to the position detector and to indicate the rotation of the pinion and, therefore, the position of the valve. In a preferred example, the energy-harvesting sensor is activated by change in a magnetic field and the magnetic polarization of a Wiegand wire. In examples, the electrical pulse is induced in a coil wrapped around the Wiegand wire when a magnet disposed on the pinion is rotated.

    THERMAL VOLUME CONTROL FOR AN ACTUATOR ASSEMBLY

    公开(公告)号:US20190331253A1

    公开(公告)日:2019-10-31

    申请号:US16504391

    申请日:2019-07-08

    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.

    Thermal volume control for an actuator assembly

    公开(公告)号:US10364912B2

    公开(公告)日:2019-07-30

    申请号:US15236945

    申请日:2016-08-15

    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.

    MANUAL HYDRAULIC OVERRIDE PUMPS FOR USE WITH ACTUATORS

    公开(公告)号:CA3147601C

    公开(公告)日:2022-05-03

    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.

    sistema e método para carregar um aparelho acumulador, e, aparelho acumulador

    公开(公告)号:BRPI1015261B1

    公开(公告)日:2020-09-08

    申请号:BRPI1015261

    申请日:2010-05-05

    Abstract: sistema e método para carregar um aparelho acumulador, e, aparelho acumulador. métodos e aparelho para carregar acumuladores são descritos. um exemplo de sistema para carregar um aparelho acumulador (100) inclui um pistão (104) disposto dentro de um invólucro (102) para definir uma primeira câmara adjacente a uma primeira lateral (106) do pistão e uma segunda câmara adjacente a uma segunda lateral (108) do pistão. uma sonda de preenchimento (202) com um corpo e uma passagem entre uma primeira extremidade (306) da sonda de preenchimento e uma segunda extremidade (308) da sonda de preenchimento acopla de modo removível ao pistão para acoplar fluidicamente à passagem da sonda de preenchimento à segunda câmara do invólucro quando o acumulador está em uma condição de carregamento. uma válvula (142) é acoplada fluidicamente ao pistão para permitir o fluido fluir a segunda câmara do invólucro através do pistão (104) quando a sonda de preenchimento é acoplada ao pistão (104).

    atuador de válvula rotativa, e, aparelho de amortecimento

    公开(公告)号:BR112012002900B1

    公开(公告)日:2020-08-11

    申请号:BR112012002900

    申请日:2010-08-30

    Abstract: atuador de válvula rotativa, e, aparelho de amortecimento atuadores de válvula rotativa tendo um aparelho de amortecimento de curso parcial são aqui descritos. um exemplo do atuador de válvula rotativa aqui descrito inclui um alojamento contendo um primeiro pistão e um segundo pistão oposto ao primeiro pistão, em que os pistões se movem em direções opostas para girar um eixo do atuador de válvula rotativa. um amortecedor é operativamente acoplado a pelo menos um dentre o primeiro pistão ou o segundo pistão para retardar o movimento do pistão para apenas uma parte de um curso do atuador de válvula rotativa.

    Methods and apparatus to charge accumulator apparatus

    公开(公告)号:AU2010266661B2

    公开(公告)日:2016-09-08

    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).

    METODOS Y APARATOS PARA CARGAR APARATOS ACUMULADORES

    公开(公告)号:AR077230A1

    公开(公告)日:2011-08-10

    申请号:ARP100102250

    申请日:2010-06-24

    Abstract: Se describe métodos y aparatos para cargar acumuladores. Un sistema dado como ejemplo para cargar un aparato acumulador incluye un piston dispuesto dentro de un alojamiento de manera de definir una primera cámara adyacente a un primer lado del piston y una segunda cámara adyacente a un segundo lado del piston. Una sonda de llenado, que tiene un cuerpo y un pasadizo entre un primer extremo de la sonda de llenado y un segundo extremo de la sonda de llenado, se acopla de manera removible al piston para acoplar, en una comunicacion fluídica, el pasadizo de la sonda de llenado a la segunda cámara del alojamiento, cuando el acumulador se halla en una condicion de carga. Hay una válvula acoplada en una comunicacion fluídica al piston, destinada a permitir el flujo del fluido hacia la segunda cámara del alojamiento por intermedio del piston, cuando la sonda de llenado está acoplada al piston.

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