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    • 6. 发明公开
    • An element for generating a fluid dynamic force
    • 元素zum Erzeugen einer dynamischenFlüssigkeitskraft
    • EP2316729A3
    • 2011-11-02
    • EP10182928.1
    • 2006-07-13
    • City University
    • Prince, SimonKhodagolian, Vahik
    • B64C23/06
    • B64C23/06B64C2230/06B64C2230/18B64C2230/20F03D1/0641F05D2240/30Y02E10/721Y02T50/162Y02T50/166
    • This invention relates to an element (11) for generating a fluid dynamic force, the element (11) comprising first (13) and second (15) surfaces extending in opposite directions from a leading edge (17) of the element (11) and meeting at a trailing edge (18) thereof to define a three dimensional body that is shaped to generate a fluid dynamic force when immersed at an angle of attack α to a fluid flow over the element (11) in a flow direction U, the first surface (13) comprising an array of fluid inlets (19) and the second surface (15) comprising a corresponding array of fluid outlets (21), each said inlet (19) being fluidly coupled to a said outlet (21) by means of a fluid duct (23) at least part of which is pitched at an angle θ to a tangent plane (Y—Y) to said second surface (15) in the vicinity of said outlet (21) and skewed at an angle ϕ to said fluid flow direction U, the arrangement being such that the element (11) is operable in use to generate a relatively high fluid pressure region downstream of said leading edge (17) proximate said first surface (13) and a relatively low fluid pressure region downstream of said leading edge (17) proximate said second surface (15), and fluid from said relatively high fluid pressure region is enabled to flow into said fluid inlets (19) through said fluid ducts (23) and out of said fluid outlets (21) into said relatively low pressure region to generate fluid vortices which reenergise said low pressure region and delay boundary layer separation from said second surface (15).
    • 本发明涉及用于产生流体动力的元件(11),元件(11)包括从元件(11)的前缘(17)沿相反方向延伸的第一(13)和第二(15)表面,以及 在其后缘(18)处会合以限定三维体,其被成形为当以冲击角度向流体方向U上的元件(11)上的流体流动浸入时产生流体动力,第一 表面(13)包括一组流体入口(19),第二表面(15)包括相应的流体出口(21)阵列,每个所述入口(19)通过以下方式流体连接到所述出口(21) 流体管道(23),其至少一部分在所述出口(21)附近与所述第二表面(15)成角度θ相对于切平面(Y“Y”)倾斜并以Õ至 所述流体流动方向U,所述布置使得所述元件(11)在使用中可操作以产生相对较高的流体流量 靠近所述第一表面(13)的所述前缘(17)下游的基部区域和靠近所述第二表面(15)的所述前缘(17)下游的相对低的流体压力区域,并且来自所述相对高的流体压力区域的流体是 能够通过所述流体管道(23)流入所述流体入口(19)并且从所述流体出口(21)流入所述相对低压区域以产生流体涡流,其使所述低压区域重新通电并延迟边界层与所述第二 表面(15)。
    • 10. 发明公开
    • SYNTHETIC JET ACTUATORS FOR COOLING HEATED BODIES AND ENVIRONMENTS
    • 对于一个曼·雷按钮冷却加热型机构和ENVIRONMENTS
    • EP1040736A1
    • 2000-10-04
    • EP98957870.3
    • 1998-11-12
    • GEORGIA TECH RESEARCH CORPORATION
    • GLEZER, AriALLEN, Mark, G.
    • H05K1/11H05K1/14
    • F21V29/70B64C21/08B64C2230/02B64C2230/04B64C2230/06B64C2230/14B64C2230/16B64C2230/18B64G1/26B64G1/40B64G1/401F01D5/148F02K1/28F15C1/14F15C5/00F15D1/009F15D1/08F15D1/12F16K99/0001F16K99/0007F16K99/0034F16K99/0048F16K2099/0094F16K2099/0098F21V29/677F21V29/74F21V29/83F23R3/24F28F13/02H01L23/4336H01L2924/0002H01L2924/3011H05K7/20172Y02T50/166H01L2924/00
    • Briefly described, the present invention is concerned with cooling heated bodies and/or heated fluid with synthetic jet actuators in either open or closed systems. A first preferred embodiment of a cooling system of the present invention comprises a synthetic jet actuator directed to impinge directly on a heat producing (or heated) body. The synthetic jet actuator generates a synthetic jet stream comprised of cool ambient fluid that impinges on the heated surface thereby cooling this surface. As an example, the heated surface/body could be a microchip array in a microcomputer. After coming into contact with the heated surface, the fluid moves along the surface and is finally rejected to the ambient where it mixes and cools down. The synthetic jet may be incorporated into a modular unit that may be clipped on to a circuit board or other heat producing element to provide added, 'ad hoc' cooling. In another configuration, a synthetic jet actuator may be positioned, relative to the heated surface, to create a synthetic jet stream to flow along the heated surface. In this embodiment, the flow would be approximately tangential to a surface of a heat producing body. This embodiment may further comprise a cyclical flow of the fluid jet, along the heated body and about a heat sink surface.
    • 简单地说,本发明涉及冷却加热体和/或加热的流体在开放或封闭系统中的合成射流致动器。 本发明的冷却系统的第一优选实施方案包括定向到上的产热(或加热)的身体直接撞击的合成射流致动器。 合成射流致动器基因率的合成射流流由冷的环境流体的加热表面,从而冷却该表面上没有撞击。 如在实施例中,加热的表面/体可能是在微型计算机的微型芯片阵列。 进入与加热的表面接触后,沿所述表面和所述流体移动最终拒绝到其混合并冷却周围环境。 合成射流可以被合并到一个模块单元并可以被夹到一个电路板或其它热产生元件以提供附加的,“特定”的冷却。 在另一配置中,合成射流致动器可以被定位,相对于加热表面,以创建一个合成射流流沿着加热表面流动。 在此,流动将是实施例大约相切于产热体的表面。 这可能实施例还包括将流体射流的一个周期性流,沿被加热体和有关的散热器表面。