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公开(公告)号：US08734131B2
公开(公告)日：2014-05-27
申请号：US12922589
申请日：2009-03-13
IPC分类号： F04B17/03
CPC分类号： F04B43/046 , F04B45/047 , F04F7/00
摘要： A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secondary cavity extending radially outwards of the main cavity, one or more actuators which, in use, cause oscillatory motion of the first end wall in a direction substantially perpendicular to the plane of the first end wall, and whereby, in use, the axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity, and wherein the secondary cavity spaces the side wall from the first end wall such that the first end wall can move relative to the side wall when the actuator is activated.
摘要翻译： 一种流体泵，其包括在使用中包含待泵送的流体的腔室，所述腔室包括具有由第一和第二端壁界定的基本上圆柱形的主腔，以及侧壁和径向向外延伸的主腔 空腔，一个或多个致动器，其在使用中在基本上垂直于第一端壁的平面的方向上引起第一端壁的振荡运动，并且由此在使用中，端壁的轴向振动驱动径向振动 所述主腔中的流体压力，并且其中所述次级腔将所述侧壁与所述第一端壁间隔开，使得当所述致动器被致动时所述第一端壁可相对于所述侧壁移动。
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公开(公告)号：US20120274686A1
公开(公告)日：2012-11-01
申请号：US13517138
申请日：2010-12-17
CPC分类号： B41J2/14201 , B41J2202/15
摘要： A print head comprising a nozzle plate having a plurality of nozzles extending therethrough, a piezoelectric bending mode actuator associated with each nozzle and connected with the respective nozzle so as to provide a plurality of independently actuatable nozzles, and a mount for, in use, connecting the nozzle plate to a liquid printer, wherein, in use, each nozzle can be driven at its resonant frequency such that motion of the driven nozzle causes liquid to be ejected only from the driven nozzle.
摘要翻译： 一种打印头，包括具有延伸穿过其中的多个喷嘴的喷嘴板，与每个喷嘴相关联并与相应喷嘴连接以便提供多个可独立致动的喷嘴的压电弯曲模式致动器，以及用于在使用中的连接 喷嘴板到液体打印机，其中，在使用中，每个喷嘴可以以其共振频率被驱动，使得从动喷嘴的运动使得液体仅从驱动喷嘴喷出。
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公开(公告)号：US08297947B2
公开(公告)日：2012-10-30
申请号：US12477634
申请日：2009-06-03
申请人： Richard Janse Van Rensburg , Stuart Andrew Hatfield , Justin Rorke Buckland , James Edward McCrone
发明人： Richard Janse Van Rensburg , Stuart Andrew Hatfield , Justin Rorke Buckland , James Edward McCrone
IPC分类号： F04B17/00
摘要： A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations. The pump further comprises a valve for controlling the flow of fluid through the valve. The valve has first and second plates with offsetting apertures and a sidewall disposed between the plates around the perimeter of the plates to form a cavity in fluid communication with the apertures. The valve further comprises a flap disposed and moveable between the first and second plates and having apertures substantially offset from the apertures of one plate and substantially aligned with the apertures of the other plate. The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
摘要翻译： 公开了一种具有基本上圆柱形形状并且限定由两端封闭的侧壁形成的空腔的泵，其中腔体包含流体。 所述泵还包括致动器，所述致动器可操作地与至少一个所述端壁相关联，以致所述从动端壁的振荡运动产生所述被驱动端壁在所述空腔内的位移振荡。 泵还包括与驱动端壁的周边部分可操作地相关联的隔离器，以减少位移振荡的阻尼。 泵还包括用于控制通过阀的流体流动的阀。 该阀具有第一和第二板，其具有偏移孔和围绕板的周边设置在板之间的侧壁，以形成与孔流体连通的空腔。 所述阀还包括设置并可在所述第一和第二板之间移动并且具有基本上偏离一个板的孔并且基本上与另一个板的孔对准的孔的翼片。 响应于穿过阀门的流体压差的方向改变，翼片被激活在两个板之间。
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公开(公告)号：US20100310398A1
公开(公告)日：2010-12-09
申请号：US12477634
申请日：2009-06-03
申请人： Richard Janse Van Rensburg , Stuart Andrew Hatfield , Justin Rorke Buckland , James Edward McCrone
发明人： Richard Janse Van Rensburg , Stuart Andrew Hatfield , Justin Rorke Buckland , James Edward McCrone
IPC分类号： F04B19/00
摘要： A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations. The pump further comprises a valve for controlling the flow of fluid through the valve. The valve has first and second plates with offsetting apertures and a sidewall disposed between the plates around the perimeter of the plates to form a cavity in fluid communication with the apertures. The valve further comprises a flap disposed and moveable between the first and second plates and having apertures substantially offset from the apertures of one plate and substantially aligned with the apertures of the other plate. The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
摘要翻译： 公开了一种具有基本上圆柱形形状并且限定由两端封闭的侧壁形成的空腔的泵，其中腔体包含流体。 所述泵还包括致动器，所述致动器可操作地与至少一个所述端壁相关联，以致所述从动端壁的振荡运动产生所述被驱动端壁在所述空腔内的位移振荡。 泵还包括与驱动端壁的周边部分可操作地相关联的隔离器，以减少位移振荡的阻尼。 泵还包括用于控制通过阀的流体流动的阀。 该阀具有第一和第二板，其具有偏移孔和围绕板的周边设置在板之间的侧壁，以形成与孔流体连通的空腔。 所述阀还包括设置并可在所述第一和第二板之间移动并且具有基本上偏离一个板的孔并且基本上与另一个板的孔对准的孔的翼片。 响应于穿过阀门的流体压差的方向改变，翼片被激活在两个板之间。
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公开(公告)号：US08944559B2
公开(公告)日：2015-02-03
申请号：US13517138
申请日：2010-12-17
CPC分类号： B41J2/14201 , B41J2202/15
摘要： A print head comprising a nozzle plate having a plurality of nozzles extending therethrough, a piezoelectric bending mode actuator associated with each nozzle and connected with the respective nozzle so as to provide a plurality of independently actuatable nozzles, and a mount for, in use, connecting the nozzle plate to a liquid printer, wherein, in use, each nozzle can be driven at its resonant frequency such that motion of the driven nozzle causes liquid to be ejected only from the driven nozzle.
摘要翻译： 一种打印头，包括具有延伸穿过其中的多个喷嘴的喷嘴板，与每个喷嘴相关联并与相应喷嘴连接以便提供多个可独立致动的喷嘴的压电弯曲模式致动器，以及用于在使用中的连接 喷嘴板到液体打印机，其中，在使用中，每个喷嘴可以以其共振频率被驱动，使得从动喷嘴的运动使得液体仅从驱动喷嘴喷出。
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公开(公告)号：US07550034B2
公开(公告)日：2009-06-23
申请号：US10551788
申请日：2004-04-07
申请人： Richard Wilhelm Janse Van Rensburg , Robert Gordon Maurice Selby , Francoise Florence Dufour , Justin Rorke Buckland , John Matthew Somerville
发明人： Richard Wilhelm Janse Van Rensburg , Robert Gordon Maurice Selby , Francoise Florence Dufour , Justin Rorke Buckland , John Matthew Somerville
IPC分类号： B01D53/22 , F04B45/047 , F04B43/04
CPC分类号： F04B45/047 , B41J2202/15 , F04B43/0027 , F04B43/046 , F04B53/1077 , F04F7/00
摘要： A gas flow generator comprising: an ultrasonic driver comprising a piezoelectric or electrostrictive transducer mounted on a substrate, operation of the transducer being arranged to cause the driver to bend; a first membrane disposed on or formed integrally with the transducer or the substrate; and a second membrane mounted substantially parallel with the driver and spaced a given distance therefrom, one of the membranes being perforate, whereby ultrasonic bending of the driver on actuation of the transducer causes a gas flow through the perforate membrane.
摘要翻译： 一种气流发生器，包括：超声波驱动器，包括安装在基板上的压电或电致伸缩换能器，所述换能器的操作被布置成使驾驶员弯曲; 设置在所述换能器或所述基板上或与所述换能器或所述基板一体形成的第一膜; 以及第二膜，其基本上平行于所述驱动器并与其间隔一定距离，所述膜中的一个是穿孔的，由此所述驱动器在所述换能器致动时的超声波弯曲导致气体流过所述穿孔膜。
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公开(公告)号：US09108221B2
公开(公告)日：2015-08-18
申请号：US13379063
申请日：2010-06-17
CPC分类号： B06B1/0603 , Y10T29/49005
摘要： A dual-frequency ultrasound transducer, comprising a piezo-electric element bonded to a substrate, has two resonant vibration modes: a low frequency mechanical bending resonance mode and a relatively high frequency thickness resonance mode. The low frequency bending resonance mode occurs when the piezo-electric element is excited, in use, by a voltage which includes a low frequency oscillating component. The high frequency thickness resonance mode occurs when the piezo-electric element is excited, in use, by a voltage which includes a relatively high frequency oscillating component. The transducer may include a mounting arrangement, such as a support ring securing the periphery of the substrate to an underlying base layer that enhances the depth of penetration and focus of the ultrasound.
摘要翻译： 一种双频超声波换能器，包括结合到基底上的压电元件，具有两个共振振动模式：低频机械弯曲共振模式和相对高频率的厚度共振模式。 当压电元件在使用中被包括低频振荡分量的电压激发时，发生低频弯曲共振模式。 当压电元件在使用中被包括相对高频振荡分量的电压激发时，发生高频厚度谐振模式。 换能器可以包括安装布置，例如将基底的周边固定到下面的基底层的支撑环，其增强了超声的穿透深度和聚焦。
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公开(公告)号：US08763633B2
公开(公告)日：2014-07-01
申请号：US13376017
申请日：2009-06-03
IPC分类号： F16K21/04
CPC分类号： F16K15/141 , F16K99/0001 , F16K99/0015 , F16K2099/0086 , F16K2099/0094 , Y10T137/7771 , Y10T137/784 , Y10T137/7879 , Y10T137/86759
摘要： A valve for controlling the flow of fluid having first (16) and second (14) plates with offsetting apertures and a sidewall (12) disposed between the plates around the perimeter of the plates to form a cavity (15) in fluid communication with the apertures is disclosed. The valve further comprises a flap (17) disposed and moveable between the first and second plates and having apertures (22) substantially offset from the apertures (20) of one plate (16) and substantially aligned with the apertures (18) of the other plate (14). The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
摘要翻译： 一种用于控制具有偏移孔的第一（16）和第二（14）板的流体的流动的阀，以及设置在板周围的板之间的侧壁（12），以形成与所述板的流体连通的空腔（15） 公开了孔。 所述阀还包括翼片（17），其在所述第一和第二板之间设置和移动，并且具有基本上偏离一个板（16）的孔（20）的孔（22）并且基本上与另一个的孔（18）对准 板（14）。 响应于穿过阀门的流体压差的方向改变，翼片被激活在两个板之间。
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公开(公告)号：US08123502B2
公开(公告)日：2012-02-28
申请号：US11918796
申请日：2006-04-21
IPC分类号： F04B45/04 , F04B45/047 , F04B25/00
CPC分类号： F04B43/046 , F04B45/047 , F04F7/00
摘要： A fluid pump comprising one or more actuators, two end walls, a side wall; a cavity which, in use, contains fluid, the cavity having a substantially cylindrical shape bounded by the end walls and the side walls, at least two apertures through the cavity walls, at least one of which is a valved aperture, wherein the cavity radius, a, and height, h, satisfy the following inequalities: a/h is greater than 1.2; and h2/a is greater than 4×10−10 m; and wherein, in use, the actuator causes oscillatory motion of one or both end walls in a direction perpendicular to the plane of the end walls; whereby, in use, the axial oscillations of the end walls drive radial oscillations of fluid pressure in the cavity.
摘要翻译： 一种流体泵，包括一个或多个致动器，两个端壁，侧壁; 在使用中，所述空腔包含流体，所述空腔具有由所述端壁和所述侧壁限定的基本上圆柱形的形状，至少两个穿过所述空腔壁的孔，其中至少一个是阀门孔，其中所述腔半径 ，a和height，h满足以下不等式：a / h大于1.2; h2 / a大于4×10-10 m; 并且其中，在使用中，致动器在垂直于端壁平面的方向上引起一个或两个端壁的振荡运动; 由此，在使用中，端壁的轴向振动驱动空腔中的流体压力的径向振荡。
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公开(公告)号：US10975855B2
公开(公告)日：2021-04-13
申请号：US13983472
申请日：2012-02-03
IPC分类号： F04B43/04 , F04B19/00 , F04F7/00 , F04B45/047
摘要： A pump comprising a side wall closed at each end by an end wall forming a cavity for, in use, containing a fluid, one or more actuators each operatively associated with one or more of the end walls to cause an oscillatory motion of the associated end wall(s) whereby, in use, these axial oscillations of the end wall(s) drive substantially radial oscillations of the fluid pressure in the cavity, two or more apertures in the cavity, a valve disposed in at least one of the apertures, wherein the actuator(s) is arranged to be non-axisymmetric in use such that, in use, a pressure oscillation with at least one nodal diameter is generated within the cavity.
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