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

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

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B24C-005/00 B24C-005/04 B24C-001/00
출원번호	US-0341288 (2016-11-02)
등록번호	US-10081091 (2018-09-25)
발명자 / 주소	Lee, Jin Won Kim, In Ho
출원인 / 주소	POSTECH ACADEMY-INDUSTRY FOUNDATION
대리인 / 주소	LRK Patent Law Firm
인용정보	피인용 횟수 : 0 인용 특허 : 26

초록 ▼

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.

대표청구항 ▼

1. A method of generating high-speed uniform nanoparticles by passing a particle generation gas formed of carbon dioxide through a nozzle, the method comprising: generating nuclei by passing the particle generation gas through an orifice provided in a nozzle throat of the nozzle to expand the particle generation gas;generating sublimation particles by passing the particle generation gas through a first dilating portion extended from an outlet of the nozzle throat and having a dilation angle of 0° to 30° to grow the nuclei; andoffsetting growth of a boundary layer and increasing speed of injecting the sublimation particles by passing the particle generation gas through a second dilating portion extended from an outlet of the first dilating portion and having an average dilation angle increased by 10° to 45° compared with the dilation angle of the first dilating portion. 2. The method according to claim 1, further comprising adjusting a pressure of the particle generation gas before the generating of nuclei. 3. The method according to claim 2, wherein the particle generation gas is adjusted to have a pressure of 5 bar to 60 bar and flows into the nozzle. 4. The method according to claim 1, further comprising: before the generating of nuclei,forming a mixture gas by mixing the particle generation gas and a carrier gas; andadjusting a pressure of the mixture gas. 5. The method according to claim 4, wherein the carrier gas is formed of nitrogen or helium, andthe mixture gas is adjusted to have a pressure of 5 bar to 120 bar and flows into the nozzle. 6. The method according to claim 1, further comprising, after the increasing of speed of injecting the sublimation particles, passing the particle generation gas through a third dilating portion extended from an outlet of the second dilating portion and having a dilation angle increased by 10° to 45° compared with the average dilation angle of the second dilating portion and lower than 90° in maximum, and forming a high-speed core of the sublimation particles outside the nozzle, thereby controlling a flow of the particle generation gas.

이 특허에 인용된 특허 (26)

Vadnais Kenneth (Livonia MI), Caulking tube valve.
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Kay, Albert; Karthikeyan, Jeganathan, Cold spray system nozzle.
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Nathenson Richard D., Contoured supersonic nozzle.
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Polite ; Jr. Richard H. (5024 E. 2nd St. Tulsa OK 74112), Device for cutting caulking nozzles.
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Bourrilhon, Thibaut; Dusser, Bernard; Fernandes, Patrick; Thibault, Jean-Paul, Device for ejecting a diphasic mixture.
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Richter, Uwe; Kellershofen, Hans, Device for treating the surfaces of structures and ships.
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Wolfe Joseph E., Effervescent liquid fine mist apparatus and method.
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Hansinger Michael P. ; Conrad Jeffrey T. ; Francis Woodie ; Beam Harold ; Karbowniczek Joseph Jerome ; Schroeder Ronald, Electrostatic rotary atomizing spray device with improved atomizer cup.
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Mueller John H. ; Scavo Steven, Faceted exhaust nozzle.
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Dushkin,Andrey L.; Karpyshev,Alexander V., Liquid sprayers.
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Freeman, Dominique; Alden, Don; Boecker, Dirk; Cane, Mike; Schumann, Matt; Beadman, Mike, Method and apparatus for a multi-use body fluid sampling device with sterility barrier release.
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Marsot, Travis; Lum, Paul; Alden, Don; Ross, James; Bardell, Ron L.; Weigl, Bernhard, Method and apparatus for an improved sample capture device.
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Pao Y. H. Michael ; Madonna Peter L. ; Coogan Ross T., Method and apparatus for producing a high-velocity particle stream.
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Base Terence E.,CAX ; Chan Edward W.,CAX ; Kennett R. Douglas,CAX ; Emberley Douglas A.,CAX, Nozzle for atomizing liquid in two phase flow.
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Carlomagno Giovanni Maria (Neaples IT) Cecere Antonio (Taranto IT) Costa Bruno (Neaples IT) Muni Nicola (Taranto IT) Napolitano Luigi (Neaples IT), Nozzles of the lance heads for blowing oxygen from above in the refining processes.
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Rymarchyk ; Jr. Nicholas M. (Pittsburgh PA), Oxygen lance nozzle.
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Ashraff M. Ahmed (739 Pepperloaf Crescent Winnipeg ; Manitoba CAX R3R 1G2), Pesticide rinser.
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Canfield, Alan R.; Shigley, John K., Rocket motor nozzle assemblies having vacuum plasma-sprayed refractory metal shell throat inserts, methods of making, and rocket motors including same.
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McGrath, David K.; Kirschner, Jr., Thomas J.; Dombrowski, Daniel C., Rocket nozzle assembly having rotatable variable thrust control cylinders, and rocket assembly comprising the same.
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Gabrysch Leslie P. (Hewitt TX), Self compensating ducted rocket motor fuel nozzle and method for regulating fuel generation.
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Ratnik,H. Ronald, Snow-gun.
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Fisenko, Vladimir Vladimirovich, Supersonic nozzle.
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Fisenko, Vladimir Vladimirovich, Supersonic nozzle for boiling liquid.
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McDermott Wayne T. (Allentown PA) Ockovic Richard C. (Allentown PA) Wu Jin J. (Ossining NY) Cooper Douglas W. (Millwood NY) Schwarz Alexander (Allentown PA) Wolfe Henry L. (Pleasant Valley NY), Surface cleaning using a cryogenic aerosol.
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Schreur,Ivan; Shawver,Doug; O'Brien,Dan, Turbine drive rotary spray cleaner.
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Feder Didier Georges,FRX ; Lapergue Guy Jean-Louis,FRX, Universal-joint vectoring system for a turbojet-engine exhaust nozzle.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

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

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

초록 ▼

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연구과제 타임라인

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