VALVE
    61.
    发明申请
    VALVE 有权

    公开(公告)号:US20210140549A1

    公开(公告)日:2021-05-13

    申请号:US16636209

    申请日:2019-03-25

    Inventor: Yuki SUNAYAMA

    Abstract: A valve includes a sleeve, a shaft supported inside the sleeve such as to be movable linearly and having one end positioned more forward than a first end face of the sleeve, a valve body extending sideways from one end of the shaft, an elastic member surrounding the sleeve and fixedly joined to an outer side face of the sleeve, a press-fit seal part connected to the elastic member and press-fit into a valve attachment hole of a component to which the valve is mounted to make a contact with an inner side face of the valve attachment hole, and a valve seat seal part connected to the elastic member and covering the first end face of the sleeve, for the valve body to make a contact with and separate from.

    REJECT VALVE OF REVERSE OSMOSIS DEVICE

    公开(公告)号:US20210139349A1

    公开(公告)日:2021-05-13

    申请号:US16623597

    申请日:2018-06-12

    Inventor: Heikki POHJOLA

    Abstract: A reject valve of a reverse osmosis device, which is especially suited for brackish water reverse osmosis devices, which require a low system pressure less than 15bar. The valve keeps the system pressure substantially constant in a pre-defined range of the reject volume. The size of the inflow channel is adjusted by a spring-operated cone, which never entirely closes the channel, which forms a constant throttle until the pressure of the inflow has risen to approximately three quarters of the pressure arranged by the spring and prevailing at maximum volume of the reject flow. This operation is arranged structurally such that onto the shaft of the cone is fixedly supported a transverse plate abutting the inner wall of the body, which as pressed by the compression spring is supported by the end of an element connected to the end of the body, wherein the cone is in its lowest position.

    Fluid stop valve unit
    63.
    发明授权

    公开(公告)号:US10995869B2

    公开(公告)日:2021-05-04

    申请号:US16798882

    申请日:2020-02-24

    Applicant: 3EFLOW AB

    Inventor: Erik Abbing

    Abstract: The present invention concerns a fluid stop valve unit comprising at least one fluid stop valve and a pressure responsive part, integrated or separate, arranged so that the at least one fluid stop valve is kept in a closed state. The pressure responsive part, integrated or separate, has an opening characteristic going from the closed state to an open state with a decrease of pressure after a threshold pressure has been reached.

    Check valve for fuel tank
    67.
    发明授权

    公开(公告)号:US10773589B2

    公开(公告)日:2020-09-15

    申请号:US16103408

    申请日:2018-08-14

    Abstract: A check valve for fuel tank comprises a joint that is fixed to a fuel tank, a passage forming part, and a valve member. The joint is connected to one end of the passage forming part, and an outlet is formed at the other end of the passage forming part. The valve member that opens and closes the outlet. The valve member comprises a valve element, a spring bearing part, a holding part continuous to at least one of the joint and the passage forming part, and a compression coil spring. The joint and the passage forming part are communicated to each other to form a fuel passage. At the end on the joint side of the passage forming part in the fuel passage, there is formed a diameter enlarged portion having an inner diameter gradually increasing from a fuel supply pipe side toward the outlet side.

    Valve seats for use in fracturing pumps

    公开(公告)号:US10753495B2

    公开(公告)日:2020-08-25

    申请号:US15814501

    申请日:2017-11-16

    Abstract: A valve seat at least partially formed of a ceramic material for use in a fracturing pump includes a first body and a second body. The first body is configured to be inserted into a fluid passageway of the fracturing pump. The first body has an outer diameter, D1. The second body extends radially from the first body and has an outer diameter, D2, greater than the outer diameter, D1, of the first body. The second body is at least partially formed of the ceramic material.

    Valve seat with a hardened sleeve interior and a metal exterior

    公开(公告)号:US10718441B2

    公开(公告)日:2020-07-21

    申请号:US16057739

    申请日:2018-08-07

    Abstract: A valve seat for use in a fluid end of a fracturing pump that includes a first body portion having an inner wall and an outer wall, wherein the inner wall forms a fluid bore and outer wall is configured to contact an inside surface of a fluid passageway of a fluid end of the fracturing pump for support therein. The seat further includes a second body portion extending from the first body portion, the second body having a frustro-conical portion forming a seating surface for receiving a valve. A portion of the first and second body portion includes a hardened material insert forming a portion of the seating surface and a portion of the inner wall of the first body, and further includes a metallic body portion affixed to the hardened material insert, the metallic body portion forming at least a portion of first body portion outer wall.

    Valve for pressurized environments
    70.
    发明授权

    公开(公告)号:US10711905B2

    公开(公告)日:2020-07-14

    申请号:US15569992

    申请日:2016-03-31

    Applicant: SCHRADER

    Abstract: The invention relates to a valve comprising a tubular body in which a valve stem moves axially, the head of the stem cooperating with a corresponding seat on the valve body, said stem acting against a coiled spring that is housed in a chamber of circular cross-section and disposed between a bearing zone at a first end of the chamber and the stem in order to return the stem to the seat, said spring comprising: a first end with a large turn of a diameter substantially identical to a diameter of the chamber at the first end; and a second end with a small turn connected to the shank or the head of the stem and a second large turn for centering and radial stabilization in the chamber.

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