ROLLER TAPPET ASSEMBLY
    1.
    发明公开

    公开(公告)号:US20240309835A1

    公开(公告)日:2024-09-19

    申请号:US18576971

    申请日:2022-06-20

    CPC classification number: F02M59/102 F02M63/0001 F04B1/0426 F04B53/18

    Abstract: A roller tappet assembly for a reciprocating pump comprises: a tappet body; a pin element comprising: first and second opposing end portions that engage respective formations in the tappet body to retain the pin element, and a bearing portion, extending between the first and second end portions, for supporting a cam rider arrangement. The cam rider arrangement is supported on the bearing portion of the pin element so that, in use, the reciprocating pump is cyclically loaded and unloaded as an outer surface of the cam rider arrangement interfaces with a rotating camshaft. At least one of: the bearing portion of the pin element; and/or an inner surface of the cam rider arrangement; comprises one or more recessed formations for supporting hydrodynamic lubrication between the cam rider arrangement and the pin element as the bearing portion bends during the loading cycle.

    Packing Leakage Detection System and Method
    2.
    发明公开

    公开(公告)号:US20240263630A1

    公开(公告)日:2024-08-08

    申请号:US18639703

    申请日:2024-04-18

    CPC classification number: F04B51/00 F04B53/18 F16N29/02 G01M3/26 F16N2250/06

    Abstract: This application relates to the field of oil and gas devices, systems, and methods, and particularly relates to a packing leakage detection system and method. The packing leakage detection system includes a plunger pump, a pressure sensor and a control system, where the pressure sensor is configured to detect a pressure value inside a hydraulic end of the plunger pump, and send the detected pressure value to the control system; and the control system is configured to acquire the pressure value sent by the pressure sensor, and send prompt information according to the pressure value, where the prompt information includes at least one of alarm information and information for prompting shutdown and overhaul. This application is used for solving the problem that a leakage anomaly caused by a packing failure is not discovered in time.

    Lubricant structure and lubricant method for belt pumping unit

    公开(公告)号:US12025121B2

    公开(公告)日:2024-07-02

    申请号:US17728622

    申请日:2022-04-25

    Inventor: Cong Zhang

    Abstract: An assembly for dispersing a lubricant upon a long stroke oil well rig's chain coupling roller trolley, the assembly incorporating a track frame receiving the roller trolley for leftward and rightward rolling motions; at least a first dip bucket fixedly attached to a lower end of the track frame; a front nozzle connected operatively to the at least first dip bucket for rearwardly emitting portions of the lubricant; an underlying lubricant well adapted for receiving and filling the at least first dip bucket; a rear conduit positioned for collecting the rearwardly emitted portions of the lubricant; a collection pocket underlying the rear conduit; a rear nozzle connected operatively to the collection pocket for forwardly emitting the portions of the lubricant toward the roller trolley.

    Fracturing pumps
    7.
    发明授权

    公开(公告)号:US12000251B2

    公开(公告)日:2024-06-04

    申请号:US17345995

    申请日:2021-06-11

    Abstract: A frac system includes an engine, the engine having a crankshaft and a radiator. The radiator includes a radiator cooling fan. The frac system also includes a transmission coupled to the engine and a frac pump coupled to the transmission, the frac pump including a frac pump lubricating oil pump. The frac system further includes a traction drive motor system. The traction drive motor system includes a first set of traction drive motors, the first set of traction drive motors mechanically connected to the crankshaft. The traction drive motor system also includes a second set of traction drive motors, the second set of traction drive motors mechanically connected to the radiator cooling fan. In addition, the traction drive motor system includes third set of traction drive motors, the third set of traction drive motors mechanically connected to the frac pump lubricating oil pump.

    Reciprocating Piston Pump for Conveying a Medium

    公开(公告)号:US20240141890A1

    公开(公告)日:2024-05-02

    申请号:US18068141

    申请日:2021-06-10

    CPC classification number: F04B53/18 F04B19/22 F04B49/125

    Abstract: A reciprocating piston pump includes a pump module, a drive, and an auxiliary piston. The pump module includes a cylinder head, a cylinder and a piston that form a conveying chamber. The piston converts a drive movement of the drive into conveying and suctioning stroke movements. The auxiliary piston is between the drive and the piston. The cylinder, the piston and the auxiliary piston convert the drive movement into auxiliary conveying and suctioning stroke movements, and convert the auxiliary conveying stroke movement into the conveying stroke movement of the piston via a lubricating medium in a lubricating chamber formed by the cylinder, the piston and the auxiliary piston head. A head surface of the auxiliary piston is smaller than a head surface of the piston, so that, during the auxiliary conveying stroke movement, a pressure in the lubricating chamber is greater than a pressure in the conveying chamber.

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