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1098 条记录 (耗时 0.027 秒)

    DART AND CLUTCH ASSEMBLY
    1.
    发明公开
    DART AND CLUTCH ASSEMBLY 审中-公开

    公开(公告)号：US20240337173A1

    公开(公告)日：2024-10-10

    申请号：US18747646

    申请日：2024-06-19

    申请人： Epic Lift Systems

    发明人： Robert G. Roycroft ,  Shannon Freeman

    IPC分类号： E21B43/12 ,  E21B34/06 ,  F04B47/12 ,  F04B53/12

    CPC分类号： E21B43/121 ,  E21B34/06 ,  F04B47/12 ,  F04B53/129

    摘要： Described herein are embodiments of systems and apparatuses that include a dart and/or a clutch for a dart plunger. In an exemplary embodiment, the clutch consists of a one-piece unit having a length, an outside diameter, and an inside diameter where at least a portion of the inside diameter is sized to create a frictional interface with a dart. The clutch may also include a gap, a slot, and/or a spiral cut. The dart may include a shaft having opposite ends and a shaft diameter that varies between the opposite ends.

    Pump for spraying liquid
    4.
    发明授权
    Pump for spraying liquid 有权

    公开(公告)号：US11835042B2

    公开(公告)日：2023-12-05

    申请号：US17369902

    申请日：2021-07-07

    申请人： SAMHWA CO., LTD

    发明人： Kyungchang Lee

    IPC分类号： F04B7/00 ,  F04B19/22 ,  F04B53/10 ,  F04B53/12

    CPC分类号： F04B7/0073 ,  F04B19/22 ,  F04B53/108 ,  F04B53/121

    摘要： A pump for spraying liquid includes a housing having an interior space holding liquid, a guide moving up and down within the interior space and having an inlet hole connecting with the interior space, and a piston moving with the guide while maintaining a contact with the housing and the guide. The pump further includes a valve coupled to and connecting with the guide, a shoulder coupled to an upper portion of the housing, and an elastic member having one end in contact with the shoulder and the other end in contact with the valve to provide an elastic force pushing the valve upward. The elastic member includes a center portion and upper and lower deformation portions which are formed as an integrated body.

    Piston of cylinder of air compressor
    5.
    发明授权
    Piston of cylinder of air compressor 有权

    公开(公告)号：US11815080B2

    公开(公告)日：2023-11-14

    申请号：US17709134

    申请日：2022-03-30

    申请人： Wen-San Chou ,  Cheng-Hsien Chou

    发明人： Wen-San Chou ,  Cheng-Hsien Chou

    IPC分类号： F04B39/00 ,  F04B37/10 ,  F04B53/12

    CPC分类号： F04B39/0016 ,  F04B53/123

    摘要： A piston of an air compressor contains at least one fixing bolt configured to fix a plane of a top of a head of the piston to at least one air stop sheet. A respective one of the at least one air stop sheet includes at least one bending section and at least one acting zone surrounding the at least one bending section and configured to cover at least one air orifice. A back surface of the at least one acting zone of the respective one air stop sheet moves away from the plane of the top of the head at an open angle θ, thus producing an air flowing space. A pressure of a cylinder balances with atmosphere, and the piston is not stopped by a back-pressure resistance to move smoothly in upward and downward moving strokes after the air stop sheet moves again.

    Rodless pump and multi-sealing hydraulic sub artificial lift system
    6.
    发明授权
    Rodless pump and multi-sealing hydraulic sub artificial lift system 有权

    公开(公告)号：US11655695B2

    公开(公告)日：2023-05-23

    申请号：US16925479

    申请日：2020-07-10

    申请人： Digital Downhole, Inc.

    发明人： Austin J Shields

    IPC分类号： E21B43/12 ,  F04B47/04 ,  F04B53/12 ,  F04B53/14 ,  F04B7/02

    CPC分类号： E21B43/129 ,  F04B7/02 ,  F04B47/04 ,  F04B53/12 ,  F04B53/14

    摘要： Oil and gas companies worldwide strive to improve artificial lift efficiencies to minimize environmental footprint and lower operational expense. In order to lower artificial lift costs, the traditional rod pump must be replaced and improved upon. The present invention of the rodless pump and multi-sealing hydraulic sub is an optimized hydraulic pumping system that eliminates rod wear, lowers pump intake pressure, and extends the reserve life of oil and gas wells regardless of casing configuration or depth. Lowering the pump's intake pressure in an oil and gas well by using a positive displacement pump such as the present invention will allow maximum hydrocarbon reserves to be produced with minimal energy consumption to power the pump. The superior surface seals and smaller footprint of the rodless pump eliminate the possibility of surface hydrocarbon leaks, minimizing environmental impact.

    PISTON PUMP FOR BRAKE SYSTEM
    7.
    发明申请
    PISTON PUMP FOR BRAKE SYSTEM 有权

    公开(公告)号：US20220185257A1

    公开(公告)日：2022-06-16

    申请号：US17531502

    申请日：2021-11-19

    申请人： HYUNDAI MOBIS Co., Ltd.

    发明人： Young Chang CHOI

    IPC分类号： B60T17/02 ,  B60T11/236 ,  B60T13/16 ,  F04B1/12 ,  F04B9/04 ,  F04B53/10 ,  F04B53/12 ,  F04B53/14 ,  F16D65/22 ,  F16K15/04

    摘要： According to at least one aspect, the present disclosure provides a piston pump comprising: a piston unit configured to reciprocate by driving of a motor cam; a sleeve unit disposed to surround at least a part of the piston unit and having a space in which brake oil is stored; and a check valve unit facing the sleeve unit and discharging the brake oil to an outside of the sleeve unit when a pressure of the brake oil increases, wherein the piston unit includes a first piston having a first end in contact with the motor cam and reciprocating, a second piston having a first end coupled to a second end of the first piston and configured to press the brake oil, and a spring cap coupled to a second end of the second piston and disposed to accommodate an inlet spring therein.

    Pressure booster and cylinder apparatus provided with same
    8.
    发明授权
    Pressure booster and cylinder apparatus provided with same 有权

    公开(公告)号：US11143175B2

    公开(公告)日：2021-10-12

    申请号：US16607906

    申请日：2018-03-05

    申请人： SMC CORPORATION

    发明人： Hiroyuki Asahara ,  Kazutaka Someya

    IPC分类号： F15B15/22 ,  F04B39/00 ,  F04B7/00 ,  F04B9/127 ,  F04B37/12 ,  F04B53/12 ,  F15B3/00

    摘要： A pressure booster constituting a cylinder apparatus is provided with a first piston and a second piston that are coupled to each other by a rod. A connection member provided to the second piston is configured so as to be displaceable from a connection position to a blocking position as a result of the connection member making contact with a cylinder body when the second piston is displaced in a direction where a boosting chamber contracts, and so as to be displaceable from the blocking position to the connection position as a result of the connection member making contact with the cylinder body when the second piston is displaced in a direction where the boosting chamber expands.

    RECIPROCATING PISTON PUMP
    9.
    发明申请
    RECIPROCATING PISTON PUMP 有权

    公开(公告)号：US20210293234A1

    公开(公告)日：2021-09-23

    申请号：US16826163

    申请日：2020-03-20

    申请人： Quanta IQ, Inc.

    发明人： William Clark Cronin

    IPC分类号： F04B53/12 ,  F04B53/14

    摘要： A reciprocating piston pump assembly comprises a cylinder housing with two internal chambers separated by a piston. The piston is coupled with a pushrod that reciprocates back and forth between two positions. The piston's position is tracked to measure the volume of fluid passing through the pump assembly. The pump assembly has two inlets, two outlets, two inlet passages, and two outlet passages. A first valve is positioned on the pushrod at a junction between the first inlet passage and first outlet passage. A second valve is positioned on the pushrod at a junction between the second inlet passage and second outlet passage. The pushrod can be positioned in a neutral position to simultaneously close both valves.