Nozzle, device, and method for high-speed generation of uniform nanoparticles

    公开(公告)号:US10081091B2

    公开(公告)日:2018-09-25

    申请号:US15341288

    申请日:2016-11-02

    CPC classification number: B24C5/04 B24C1/003

    Abstract: A nozzle, a device, and a method for high-speed generation of uniform nanoparticles allow a particle generation gas formed of carbon dioxide to pass through the nozzle, thereby forming uniform nanoparticles at high speed. An orifice that adjusts an opening and closing cross-sectional area of a throat of the nozzle is provided to cause uniform nuclei generation without an additional cooling device, a dilating portion that has a cross-sectional area and a dilation angle increasing toward an outlet side of the nozzle is provided to grow the nuclei through a first dilation portion (having a relatively gradual dilation angle) and thus cause particle generation, and the generated particles are accelerated through a second dilating portion that has a steeper dilation angle than the first dilating portion.

    Nozzle and device for high-speed generation of uniform nanoparticles

    公开(公告)号:US09700990B2

    公开(公告)日:2017-07-11

    申请号:US14651964

    申请日:2013-10-25

    CPC classification number: B24C1/003 B24C5/04

    Abstract: A nozzle, a device, and a method for high-speed generation of uniform nanoparticles allow a particle generation gas formed of carbon dioxide to pass through the nozzle, thereby forming uniform nanoparticles at high speed. An orifice that adjusts an opening and closing cross-sectional area of a throat of the nozzle is provided to cause uniform nuclei generation without an additional cooling device, a dilating portion that has a cross-sectional area and a dilation angle increasing toward an outlet side of the nozzle is provided to grow the nuclei through a first dilation portion (having a relatively gradual dilation angle) and thus cause particle generation, and the generated particles are accelerated through a second dilating portion that has a steeper dilation angle than the first dilating portion.

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