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    COMPRESSER FOR PUMPING FLUID HAVING CHECK VALVES ALIGNED WITH FLUID PORTS
    3.
    发明申请
    COMPRESSER FOR PUMPING FLUID HAVING CHECK VALVES ALIGNED WITH FLUID PORTS 有权

    公开(公告)号：US20230127613A1

    公开(公告)日：2023-04-27

    申请号：US18087763

    申请日：2022-12-22

    申请人： I-JACK TECHNOLOGIES INCORPORATED

    发明人： Dan McCarthy

    IPC分类号： F04B39/12 ,  F04B5/02 ,  F04B9/109

    摘要： A compressor comprises a first cylinder for compressing a fluid and a second cylinder for driving a piston in the first cylinder. The first cylinder comprises a chamber configured to receive the fluid. The piston is reciprocally movable in the chamber for compressing the fluid. The chamber comprises four ports at the first end including two inlet ports and two outlet ports with a check valve is connected to each port. Each of the four ports is slanted such that the plurality of check valves and inlet and outlet conduits are spaced apart from the second cylinder. The compressor further comprises an inlet conduit to supply the fluid from a fluid source to the chamber through the inlet ports and an outlet conduit for receiving fluid from the chamber through the outlet ports.

    Capacitive liquid leak detection device
    5.
    发明授权
    Capacitive liquid leak detection device 有权

    公开(公告)号：US11555487B2

    公开(公告)日：2023-01-17

    申请号：US16283134

    申请日：2019-02-22

    申请人： Haskel International, LLC

    发明人： Pooya Mahmoudian ,  Richard Gillberg, Jr.

    IPC分类号： F04B1/0443 ,  G01M3/16 ,  F04B49/06 ,  F04B53/16 ,  F04B49/10 ,  F04B9/109 ,  G01F23/263

    摘要： A liquid leak detector for a pump is described. The liquid leak detector is mountable on a pump to detect leaked fluid coming from the pump. The leak detector includes a buffer tube positioned on the pump to collect a leaked fluid from the pump and a sensor positioned on the buffer tube to detect the level of leaked fluid in the buffer tube and to generate a signal when the leaked fluid reaches a maximum fluid level. A purge line on the buffer tube removes leaked drive fluid from the buffer tube once the leaked drive fluid reaches a maximum level. Logic connected to the sensor receives the signal from the detector and generates an alarm.

    PUMP DEVICE
    7.
    发明申请
    PUMP DEVICE 有权

    公开(公告)号：US20220178357A1

    公开(公告)日：2022-06-09

    申请号：US17602085

    申请日：2019-04-09

    申请人： OBS Technology AS

    发明人： Nils Terje Ottestad

    IPC分类号： F04B5/02 ,  F04B9/109 ,  F04B53/14

    摘要： A double-acting pump device includes a piston arrangement being slidably arranged in a pump housing. The pump housing is separated into a drive section with a drive fluid inlet and a drive fluid outlet and a pump section with an inlet and an outlet for a pump fluid. The drive section includes a switch mechanism which utilizes the difference between the drive fluid supply pressure and the drive fluid outlet pressure to reciprocate the piston arrangement, such that axially acting forces are transferred to the pump fluid which thereby achieves a desired pressure increase. Thus, the double-acting pump is arranged to utilize the energy in a supplied drive fluid to provide a defined pressure increase in a supplied pump fluid.

    Piston head retaining system
    8.
    发明授权
    Piston head retaining system 有权

    公开(公告)号：US10584699B2

    公开(公告)日：2020-03-10

    申请号：US15889707

    申请日：2018-02-06

    申请人： Federal Signal Corporation

    发明人： Xiaolun Huang

    IPC分类号： F04B53/14 ,  F16J7/00 ,  F16J1/12 ,  F04B5/02 ,  F04B9/109 ,  F04B53/16

    摘要： A piston assembly is provided with a piston head retaining structure. The piston assembly includes a piston shaft and a piston head disposed around the piston shaft and providing a piston head face that faces a cylinder wall. The piston assembly further includes a piston head mount element arranged adjacent to the piston head and mounted around the piston shaft and a tensioning device that generates an axial tension between the piston shaft and the piston head.