Variable orifice proportioner
    1.
    发明授权

    公开(公告)号:US11934208B2

    公开(公告)日:2024-03-19

    申请号:US18071376

    申请日:2022-11-29

    Inventor: James A. Engman

    Abstract: A fire suppression system includes a water supply, a foam concentrate supply, and a venturi-principle foam proportioner fluidly coupled to each of the water supply and the foam concentrate supply. The venturi-principle foam proportioner controls a ratio of water and foam concentrate within a low pressure chamber to form a water and foam solution flowing out of the venturi-principle foam proportioner. The system also includes a variable foam concentrate orifice fluidly coupling the foam concentrate line to the low pressure chamber. The variable foam concentrate orifice includes an actuator configured to adjust an orifice area of the variable foam concentrate orifice based on a temperature of the foam concentrate.

    Fluid application for autonomous haul trucks

    公开(公告)号:US11511302B2

    公开(公告)日:2022-11-29

    申请号:US16538311

    申请日:2019-08-12

    Abstract: A method for applying fluid to a travel lane is disclosed. The method may include receiving information related to a travel lane including a first set of tire paths and a second set of tire paths to be traveled by one or more vehicles, generating spray pattern control information for a fluid application machine having multiple spray heads based on the first set of tire paths and the second set of tire paths to be traveled by the one or more vehicles, and selectively triggering the multiple spray heads of the fluid application machine to alternately apply fluid to the first set of tire paths and the second set of tire paths based on the spray pattern control information and based on a current position of the fluid application machine on the travel lane.

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