知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

4650 条记录 (耗时 0.033 秒)

    Pressure safety shutoff
    41.
    发明授权
    Pressure safety shutoff 有权

    公开(公告)号：US11852131B2

    公开(公告)日：2023-12-26

    申请号：US16649554

    申请日：2018-09-25

    申请人： Carrier Corporation

    发明人： Charles A. Cluff

    IPC分类号： F04B49/06 ,  F04B35/04 ,  F04B49/02 ,  F04B49/08 ,  F04C28/06 ,  F04C28/28

    CPC分类号： F04B49/065 ,  F04B35/04 ,  F04B49/022 ,  F04B49/08 ,  F04B2203/0204 ,  F04B2205/05 ,  F04C28/06 ,  F04C28/28 ,  F04C2270/185

    摘要： A high pressure threshold detection circuit (100) is provided. The high pressure threshold detection circuit includes a pressure transducer (110) for measuring a pressure of a medium at an outlet (104) of a compressor (102). The high pressure threshold detection circuit (100) includes a controller (120). The controller (120) includes a comparator (123) and a switch (125). The comparator (123) and the switch (125) are electrically coupled. The switch (125) is electrically coupled to an enable circuit (131). The pressure transducer (110) is electrically coupled to the comparator (123) to provide a signal to the comparator (123) based on the pressure measured at the outlet (104). The comparator (123) outputs a control signal (111) to the switch (125) when the signal (111) is equal to or greater than a reference value (126). The switch (125) opens the enable circuit (131) to disable compression of the medium by the compressor (102) in response to the control signal (111).

    Accurate volume dispensing using pump and flow sensor
    42.
    发明授权
    Accurate volume dispensing using pump and flow sensor 有权

    公开(公告)号：US11846279B2

    公开(公告)日：2023-12-19

    申请号：US17162908

    申请日：2021-01-29

    申请人： Masterflex, LLC

    发明人： Phuong Le Pham

    IPC分类号： F04B49/06 ,  F04B49/10 ,  F04B43/08 ,  F04B43/09

    CPC分类号： F04B49/065 ,  F04B43/08 ,  F04B43/09 ,  F04B49/103 ,  F04B49/106 ,  F04B2201/1201 ,  F04B2205/09

    摘要： Aspects are provided for positive displacement pumps and methods and systems for controlling such positive displacement pumps for accurate volume dispensing. The pump may run a calibration procedure to determine a mapping between a pump speed and a flow rate for a current configuration of the positive displacement pump, a tubing size, and a fluid characteristic. A pump controller may determine a pump motion profile based on the mapping. The pump motion profile includes an acceleration phase, a constant speed phase, and a deceleration phase such that a total volume pumped according to the pump motion profile and the mapping is equal to a target volume. The pump controller may determine an adjustment to the pump motion profile based on a constant flow rate measured during operation. The pump controller may decelerate the positive displacement pump according to the adjusted pump motion profile until the target volume is dispensed.

    PUMP COMPRISING COOLING MEANS
    45.
    发明公开
    PUMP COMPRISING COOLING MEANS 审中-公开

    公开(公告)号：US20230383742A1

    公开(公告)日：2023-11-30

    申请号：US18249510

    申请日：2021-10-08

    申请人： F2M

    发明人： Eric Michalski

    IPC分类号： F04B49/12 ,  F04B19/22 ,  F04B15/08 ,  F04B49/06

    CPC分类号： F04B49/12 ,  F04B49/065 ,  F04B15/08 ,  F04B19/22

    摘要： A pump for fluid to be pumped from a fluidic reserve. The pump includes a pump body having: a first end from which extends at least one intake manifold opening into a fluidic chamber to enable a fluid intake; a second end opposite the first end; and at least one fluidic pipe extending spirally about the pump body between the first end and the second end. The fluidic pipe has a first opening for connecting to the fluidic reserve, located at the second end of the pump body, and a second opening connected to the intake manifold.

    Directional and timing control circuit for water pump
    50.
    发明授权
    Directional and timing control circuit for water pump 有权

    公开(公告)号：US11788865B2

    公开(公告)日：2023-10-17

    申请号：US17505279

    申请日：2021-10-19

    申请人： BESTWAY INFLATABLES & MATERIAL CORP.

    发明人： Xiaobo Chen ,  Zhipeng Dai ,  Yuanjie Li ,  Feng Ye

    IPC分类号： H02P1/22 ,  G01D5/14 ,  F04B49/06 ,  H02P6/16

    CPC分类号： G01D5/145 ,  F04B49/065 ,  H02P6/16

    摘要： A directional and timing control circuit is provided. the circuit includes a main control chip, a power supply module to supply power to the main control chip, a driver module configured to receive a control command from the main control chip and to control a motor according to the control command, a Hall module configured to detect an operation direction of the motor and transmit an operation direction signal to the main control chip, and a zero-crossing detection module configured to detect a zero-crossing cycle of the alternating current power supply to thereby obtain a current utility frequency of the alternating current power supply as a timing frequency of the main control chip, the zero-crossing detection module including an input terminal connected to the alternating current power supply and an output terminal connected to a phase detection terminal of the main control chip.