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    Research plot seeder with planting units controlled to trip at different times to create aligned alleyways
    1.
    发明授权
    Research plot seeder with planting units controlled to trip at different times to create aligned alleyways 有权

    公开(公告)号：US12069981B2

    公开(公告)日：2024-08-27

    申请号：US17306733

    申请日：2021-05-03

    申请人： Seed Research Equipment Solutions, LLC

    发明人： Stacy L. Unruh

    IPC分类号： A01C7/10 ,  A01C7/08 ,  G01S19/42 ,  G05D7/06

    CPC分类号： A01C7/105 ,  A01C7/088 ,  G05D7/0623 ,  G05D7/0682 ,  G01S19/42

    摘要： An agricultural seeder (10) for research plots includes a front gang (21) of planting units (22) and a rear gang (23) of planting units (24) spaced a distance behind the front gang. Metering systems (14) are provided for metering seed to the planting units (22, 24) of the front and rear gangs (21, 23). A tripping system (27) is used to start and stop the seed metering systems (14) and to change seed between plots while planting. A programmable logic controller (28) is programmed with the distance between the front and rear gangs (21, 23) and is used to delay the tripping of the metering system (26) for the rear gang (23) relative to the metering system (25) for the front gang (21) until the seeder (10) has traveled the distance (L) between the front and rear gangs (21, 23). The delayed tripping for the rear gang (23) keeps the planted rows and alleyways created by the front gang planting units (22) laterally aligned with those created by the rear gang planting units (24).

    HIGH TURN DOWN RATIO DIRECT CONTROL FOR VARIABLE DISPLACEMENT PUMPS WITH FLOW SENSING
    3.
    发明公开
    HIGH TURN DOWN RATIO DIRECT CONTROL FOR VARIABLE DISPLACEMENT PUMPS WITH FLOW SENSING 审中-公开

    公开(公告)号：US20240241526A1

    公开(公告)日：2024-07-18

    申请号：US18096949

    申请日：2023-01-13

    申请人： Hamilton Sundstrand Corporation

    发明人： Ryan Prescott Susca ,  Ryan Shook

    IPC分类号： G05D7/06

    CPC分类号： G05D7/0688 ,  G05D7/0623

    摘要： A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. A flow sensing valve (FSV) is connected in the outlet line. The FSV includes a sensor configured to generate sensor data indicative of flow out of the outlet line. A controller operatively connected to the actuator to control recirculation flow passed through the BPV based on the sensor data and based on a predetermined low threshold of flow through the VDP.

    Fluid Distribution Systems, And Systems And Methods For Controlling Same
    7.
    发明公开
    Fluid Distribution Systems, And Systems And Methods For Controlling Same 审中-公开

    公开(公告)号：US20240061450A1

    公开(公告)日：2024-02-22

    申请号：US18382223

    申请日：2023-10-20

    申请人： Hayward Industries, Inc.

    发明人： Kevin Doyle ,  William Weiss

    IPC分类号： G05D7/06

    CPC分类号： G05D7/0623

    摘要： A first valve of a manifold for a fluid distribution system (“FDS”) regulates fluid flow to a first fluid handling device (“FHD”). A second valve of the manifold may communicate with a second FHD, reservoir, or recirculation line. A target flow condition for the manifold may be determined by a manifold control system (“MCS”) based on a device setting received from the first FHD. The MCS may determine an operation of the FDS based on the target flow condition, fluid flowrate, and supply device operational state. The operation may include the MCS controlling the supply device, first valve, and/or second valve to change the flowrate. The MCS may continuously operate a valve to maintain the target flow condition once exhibited. Fluid distribution systems, systems and methods for turning over an FDS including a manifold, and systems and methods for controlling operations of an FDS including multiple manifolds are also provided.

    Multiple valve control system and method
    9.
    发明授权
    Multiple valve control system and method 有权

    公开(公告)号：US11815922B2

    公开(公告)日：2023-11-14

    申请号：US16599458

    申请日：2019-10-11

    申请人： Schlumberger Technology Corporation

    发明人： Vincent Chatelet ,  Stephane Mainier

    IPC分类号： G05D7/06 ,  G05B6/02 ,  G05B15/02

    CPC分类号： G05D7/0623 ,  G05B6/02 ,  G05B15/02 ,  G05D7/0652

    摘要： Aspects of the present disclosure relate to a valve control system. The valve control system may include a transmitter and a plurality of valve controllers that each have a receiver. Each valve controller of the plurality of valve controllers is configured to control a respective valve of a plurality of valves. In some embodiments, the transmitter may transmit an electromagnetic signal that includes an encoded message to be decoded by a processor of each valve controller of the plurality of valve controllers. In some examples, the encoded message may include a synchronization message, an instruction message, an error correction message, an encryption message, or any combination thereof that enables the plurality of valve controllers to adjust the plurality of valves to respective target positions.

    FLOWRATE CONTROL DEVICE, FLOWRATE CONTROL METHOD, AND FLUID SUPPLY SYSTEM
    10.
    发明公开
    FLOWRATE CONTROL DEVICE, FLOWRATE CONTROL METHOD, AND FLUID SUPPLY SYSTEM 审中-公开

    公开(公告)号：US20230333575A1

    公开(公告)日：2023-10-19

    申请号：US18041859

    申请日：2021-08-06

    申请人： SHINWA CONTROLS CO., LTD.

    发明人： Katsutoshi SAKAI ,  Yuki FUKUZAWA

    IPC分类号： G05D7/06 ,  G05B11/42

    CPC分类号： G05D7/0623 ,  G05B11/42

    摘要： A flowrate control device includes: a storing unit that stores opening degree characteristic of a flowrate regulating valve; an inputting unit that inputs a target flowrate of the fluid flowing out from the flowrate regulating valve, and a flowrate change velocity to reach the target flowrate; a detecting unit that detects, from when the control of the flowrate to the target flowrate is started, the flowrate of the fluid flowing out from the flowrate regulating valve at a predetermined cycle; and an opening-degree regulating unit that regulates an opening degree of the flowrate regulating valve. The opening-degree regulating unit determines a difference between a detected flowrate detected by the detecting unit and a planned flowrate in the course of achieving the target flowrate, the planned flowrate corresponding to the detected flowrate and being defined by the flowrate change velocity and the number of detection executed by the detecting unit.