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    • 4. 发明申请
    • VIBRATION SYSTEMS AND METHODS
    • 振动系统与方法
    • WO2006127181A2
    • 2006-11-30
    • PCT/US2006014654
    • 2006-04-17
    • AEROGEN INCIVRI YEHUDA
    • IVRI YEHUDA
    • E02B3/06
    • H01L41/09A61M15/00A61M15/009B05B1/00B05B17/00B05B17/04B05B17/06B05B17/0638B05B17/0646B05B17/0676H01L41/053Y10T29/42
    • In one or more embodiments, a vibration system comprises a vibratable plate, a support member surrounding the vibratable plate, and a vibration-inducing member surrounding the support member, wherein the vibration-inducing member is configured to radially expand and contract against the support member so as to produce axial vibration of the vibratable plate. In one embodiment, the vibratable plate has an outer circumference; a tubular member is concentrically disposed about the outer circumference of the plate, and an annular vibration-inducing member is concentrically disposed about the outer circumference of the tubular member. The vibration-inducing member is preferably a piezoelectric ring that is radially expandable and contractable against the wall of the tubular member to cause the plate to vibrate in the axial direction. In another embodiment, an aerosol generating system comprises an piezoelectric ring that is radially expandable and contractable upon actuation thereof; a tubular member disposed within the center hole of the piezoelectric ring, and a circular vibratable aperture plate disposed across the internal lumen of the tubular member. The piezoelectric ring is radially expandable and contractable against the tubular member to cause the aperture plate to vibrate in the axial direction, and a reservoir of liquid is coupled to the tubular member so as to supply the liquid to the vibratable aperture plate and produce an aerosol upon vibration thereof.
    • 在一个或多个实施例中,振动系统包括可振动板,围绕可振动板的支撑构件和围绕支撑构件的振动诱导构件,其中,所述振动诱导构件被构造成径向地膨胀和收缩支撑构件 以产生可振动板的轴向振动。 在一个实施例中,可振动板具有外圆周; 管状构件围绕板的外周同心地设置,并且环形振动引导构件围绕管状构件的外周同心地设置。 振动诱导构件优选为压缩环,该压电环径向膨胀和收缩,抵靠管状构件的壁,以使板在轴向方向上振动。 在另一个实施例中,气溶胶发生系统包括压电环,其在致动时可径向膨胀和收缩; 设置在压电环的中心孔内的管状构件和横跨管状构件的内腔设置的圆形可振动孔板。 压电环可径向膨胀和收缩抵靠管状构件,以使孔板在轴向方向上振动,并且液体储存器联接到管状构件上,以便将液体供应到可振动孔板并产生气溶胶 振动时。
    • 5. 发明申请
    • PIEZOELECTRIC DISPENSER WITH A LONGITUDINAL TRANSDUCER AND REPLACEABLE CAPILLARY TUBE
    • 具有纵向换能器和可更换毛细管的压电式分配器
    • WO2012100205A3
    • 2012-12-27
    • PCT/US2012022091
    • 2012-01-20
    • BIODOT INCIVRI YEHUDATISONE THOMAS CLEMMO ANTHONY V
    • IVRI YEHUDATISONE THOMAS CLEMMO ANTHONY V
    • B01L3/02
    • B01L3/0268B01L2200/04B01L2200/0684B01L2400/0439
    • Systems, devices and methods are provided, for acquiring and dispensing predetermined volumes of liquids and, in particular, to a unique piezoelectric dispenser for acquiring and dispensing of small volumes of fluid in an automatic or manual production of DNA arrays and assays, wherein droplets are dispensed in a single drop format with volumes that may range from about a few picoliters to several nanoliters. The dispenser can advantageously utilize a disposable capillary tube assembly while desirably retaining the piezoelectric actuator for subsequent further uses, thereby mitigating the possibility of cross contamination of fluids and providing an economical and cost effective approach with reuse of the piezoelectric actuator for further operation such as with a variety of liquids to be dispensed and transferred. A unique longitudinal transducer can transmit radial tube displacement into controlled axial motion of the tube.
    • 提供了用于获取和分配预定体积的液体的系统,装置和方法,并且特别地,涉及一种独特的压电分配器,用于在DNA阵列和分析的自动或手动生产中采集和分配小体积流体,其中液滴是 以单滴形式分配,体积范围可以从几皮升到几纳升。 分配器可以有利地利用一次性毛细管组件,同时理想地保持压电致动器以用于随后的进一步使用,从而减轻流体交叉污染的可能性并且提供经济且节约成本的方法,其中压电致动器用于进一步操作,诸如 各种要分配和转移的液体。 独特的纵向传感器可以将径向管位移传递到管的受控轴向运动。
    • 7. 发明申请
    • ULTRASONIC FLUID EJECTOR
    • 超声波流体喷射器
    • WO9301404A1
    • 1993-01-21
    • PCT/US9205275
    • 1992-06-18
    • IVRI YEHUDA
    • IVRI YEHUDA
    • B41J2/04
    • B41J2/04A61M2205/3306B41J2202/15
    • A fluid injection device that ejects a quantum of fluid in response to an electrical signal. The device operates without kinematic elements or a pump and it does not need external pressure. In a preferred embodiment a circular membrane is mounted at its perimeter to an oscillating base. The membrane is shaped so that its cross-section is reduced toward its center. The membrane oscillates at a frequency which is at or near its natural frequency. In the preferred embodiment a second modal frequency is utilized. Because of the configuration of the membrane and the frequency of oscillation thereof, the center of the membrane oscillates over an amplitude which is significantly higher than the oscillation amplitude of the perimeter. The membrane is highly damped so that its amplitude is extremely responsive to variations in the base amplitude. The center area of the membrane is provided with one or more tapered apertures. One opening of each tapered aperture is in fluid communication with a reservoir of fluid, and the other opening of each aperture is positioned toward the fluid target, such as an engine manifold, towards which droplets of fuel from the reservoir are to be propelled. When the membrane oscillation amplitude is above a predetermined threshold, the interaction between the tapered aperture and the fuel reservoir creates a cycle of fluid compression and cavitation inside the aperture that causes a drop of fuel to accelerate through the aperture and be ejected upon each excursion of the membrane. The fluid in the reservoir, however, remains at complete rest and it is not disturbed by the small oscillation amplitude of the membrane.
    • 一种流体注射装置,其响应于电信号喷射流体的量子。 该设备在没有运动元件或泵的情况下运行,并且不需要外部压力。 在优选实施例中,圆形膜在其周边安装到振荡基座。 膜的形状使得其横截面朝向其中心减小。 膜以其固有频率处于或接近其频率振荡。 在优选实施例中,使用第二模态频率。 由于膜的结构及其振荡频率,膜的中心振动幅度明显高于周边的振荡振幅。 膜被高度阻尼,使得其幅度对基本幅度的变化非常敏感。 膜的中心区域设置有一个或多个锥形孔。 每个锥形孔的一个开口与流体的储存器流体连通,并且每个孔的另一个开口朝向流体靶(例如发动机歧管)定位,来自储存器的燃料液滴将朝向该流体靶推进。 当膜振荡幅度高于预定阈值时,锥形孔和燃料储存器之间的相互作用产生了孔内的流体压缩和空化的循环,其使得燃料滴下降通过孔加速并且在每次偏移 膜。 然而,储存器中的流体保持完全静止,并且不受膜的小的振荡幅度的干扰。
    • 8. 发明专利
    • High Frequency Printing Mechanism
    • CA2066838A1
    • 1992-10-25
    • CA2066838
    • 1992-04-22
    • IVRI YEHUDA
    • IVRI YEHUDA
    • B41J2/015B41J2/04B41J2/045B41J2/055B41J2/175
    • High frequency printing mechanism with an ink-jet ejection device which is capable of ejection of ink (including hot melt ink) at jet frequencies greater than 50,000 Hz. A cantilevered beam (12) is mounted at its base (14) to a piezoelectric element (18) which oscillates the base. The beam is shaped so that its moment of inertia is reduced toward its free end (16). The element (18) is activated by an oscillating electrical signal the frequency of which is equal to or close to a natural frequency of oscillation of the beam (12). At this frequency of oscillation of the beam, the tip (15) of the beam ocillates over an amplitude which is significantly greater than the oscillation amplitude of the base. The tip (15) of the beam is provided with an aperture which is preferably tapered in cross-section. One opening of the tapered aperture is in fluid communication with a reservoir (19) of ink and the other opening of the aperture is positioned at an appropriate distance from a printing paper towards which individual droplets of ink from the reservoir are to be propelled. When the tip amplitude is above a predetermined threshold, the solid-fluid interaction between the aperture and the ink causes a drop of ink to be accelerated through the aperture and be ejected upon each excursion of the tip of the beam toward the printing media.