Thermal spray gun with fan spray
    1.
    发明授权
    Thermal spray gun with fan spray 失效
    热喷枪带风扇喷雾

    公开(公告)号:US4836448A

    公开(公告)日:1989-06-06

    申请号:US152196

    申请日:1988-02-04

    CPC classification number: B05B7/205

    Abstract: A thermal spray gun includes a first burner for producing a first fan-shaped flame, a second burner for producing a second fan-shaped flame parallel to the first in sufficient proximity to commingle into a combined fan-shaped flame. Powder is dispersed into a fan-shaped powder spray entrained between the first and second flames. The gun body has a fan-shaped powder chamber with an open side opening forwardly from the gun body between the first flame and the second flame and with an apex location opposite the open side. First and second powder ducts each terminate at the apex location with a common axis perpendicular to the fan-shaped chamber such as to mutually impinge the first and second powder streams into a combined powder stream dispersing through the fan-shaped powder chamber into the fan-shaped powder spray. A first fan-shaped air flow is introduced between the first flame and the fan-shaped air flow is introduced between the first flame and the fan-shaped powder spray, and a second fan-shaped air flow is introduced between the second flame and the fan-shaped powder spray.

    High pressure power feed system
    2.
    发明授权
    High pressure power feed system 失效
    高压供电系统

    公开(公告)号:US4900199A

    公开(公告)日:1990-02-13

    申请号:US260625

    申请日:1988-10-21

    CPC classification number: B05B7/1445 B05B12/085 B05B7/1463

    Abstract: A system for feeding powder into high backpressure includes a carrier gas conduit with an orifice for entraining powder from a hopper, and a line for discharging feed gas at regulated pressure into the hopper to effect entrainment. A gas bleeder line has an outlet connection to the output carrier conduit, with a line pressure representative of carrier pressure. A differential pressure regulator equal to carrier pressure plus an increment. A regulated relief valve in the input carrier gas conduit provides a bleed gas supply to the bleeder line at a pressure equal to carrier pressure plus an increment. Pinch valves in the carrier conduit allow or prevent powder entrainment; alternatively, a rotatable sleeve is on the carrier conduit with a side opening alignable with the entrainment orifice. A carrier bypass conduit may be connected between the input conduit and the output conduit and hopper pressurization line may be connected between the output conduit and the hopper. An optional exhaust system may replace the bypass and pressurization lines and includes a differential exhaust valve to exahaust gas from the hopper when hopper pressure exceeds feed gas pressure.

    Powder feed pickup device for thermal spray guns
    3.
    发明授权
    Powder feed pickup device for thermal spray guns 失效
    热喷枪用粉末送料装置

    公开(公告)号:US4561808A

    公开(公告)日:1985-12-31

    申请号:US616642

    申请日:1984-06-04

    CPC classification number: B05B7/1445 B05B7/1463

    Abstract: A powder feeding system for a thermal spray gun provides uniform control of powder feed rate with a minimum of pulsation during operation and without feeding during idle mode. The feeder is comprised of an enclosed hopper for containing a powder to be thermal sprayed, a carrier conduit connected between a carrier gas supply and a thermal spray gun, a feed gas conduit for discharging a regulated supply of feed gas under pressure into the hopper, and one or preferably more powder intake orifices extending from the carrier conduit into the hopper below the normal minimum level of powder. The intake conduits have a geometric design and arrangement such that there is no gravity flow of powder therethrough into a carrier gas stream in the absence of a feed gas flow therethrough. The axes of the intake orifices extend away from the carrier conduit at an acute angle to the axis of the carrier conduit as defined by the direction of carrier gas flow. Preferably there is a constriction in the carrier conduit downstream of the intake orifices.

    Abstract translation: 用于热喷枪的粉末输送系统在操作期间以最小的脉动和在空闲模式期间不进给来均匀地控制粉末进料速率。 进料器包括用于容纳要喷涂的粉末的封闭料斗,连接在载气供应器和热喷枪之间的载体导管,用于在压力下将经调节的进料气供应排放到料斗中的进料气管道, 并且一个或优选地更多的粉末进料孔从载体导管延伸到料斗中,低于正常最低水平的粉末。 进气管道具有几何设计和布置,使得在不存在通过其中的进料气流的情况下,粉末不会通过其进入载气流中。 进气孔的轴线与承载管道的距离远离载体导管,与载气流动方向所确定的与载体导管的轴线成锐角。 优选地,在进气口下游的载体导管中存在收缩。

    Intrinsically safe valve for a combustion spray gun and a method of operation
    4.
    发明授权
    Intrinsically safe valve for a combustion spray gun and a method of operation 有权
    用于燃烧喷枪的本质安全阀和操作方法

    公开(公告)号:US08109447B2

    公开(公告)日:2012-02-07

    申请号:US12428107

    申请日:2009-04-22

    CPC classification number: B05B7/203

    Abstract: A valve for a combustion spray gun. An apparatus includes a torsion element rotatable relative to a housing of the combustion spray gun to a charged position. The apparatus also includes a biasing element applying a force to the torsion element, which force urges the torsion element to move a valve core to an off position. The apparatus further includes an engagement mechanism configured to selectively engage and hold the torsion element in the charged position.

    Abstract translation: 用于燃烧喷枪的阀。 一种装置包括能够相对于燃烧喷枪的壳体旋转到充电位置的扭转元件。 该装置还包括向扭转元件施加力的偏置元件,该力促使扭转元件将阀芯移动到关闭位置。 该装置还包括配置成选择性地将扭转元件接合并保持在充电位置的接合机构。

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