公开(公告)号：US06994110B2

公开(公告)日：2006-02-07

申请号：US10369611

申请日：2003-02-21

Applicant: François Barillot ,  Gilles Patient ,  Ronan Le Letty

Inventor： François Barillot ,  Gilles Patient ,  Ronan Le Letty

IPC: F16K37/00

CPC classification number: F16K31/004 ,  F16K31/126 ,  F16K41/10 ,  Y10T137/8242

Abstract: The valve comprises a mobile needle having a movement in the valve body which is controlled by an amplified piezoelectric actuator. A bellows, surrounding an intermediate zone of the needle, is integral at a first end with the valve body and at a second end with the needle so as to isolate the actuator from the pressure chamber. At least one flexible guide blade of the needle is fixed on the one hand to the valve body and on the other hand to the needle. This flexible guiding enables any part sliding with respect to another part, liable to generate wear or contaminating particles, to be avoided, except for the seat and needle.

公开(公告)号：US20170341109A1

公开(公告)日：2017-11-30

申请号：US15536485

申请日：2015-11-25

Applicant: CEDRAT TECHNOLOGIES

Inventor： Timothée FORISSIER ,  Nabil BENCHEIKH ,  Frank CLAEYSSEN ,  Alexandre PAGES

IPC: B06B1/06 ,  G10K15/04 ,  G10K11/24 ,  H04R17/10 ,  B08B3/12

Abstract: The ultrasonic tubular transducer is activated at the centre thereof by two symmetrical electromechanical converters. The vibration generated by the two electromechanical converters is converted and then transmitted to the tube via a coupler. The ultrasonic transducer can be vibrationally isolated from the interfaces thereof by caps equally suitable for connecting the transducer to a stationary frame, a free end or another similar ultrasonic transducer. A device for pre-stressing electromechanical converters has a hole bored at the centre thereof in order to allow cables from the transducer as well as from adjacent transducers to pass therethrough.

公开(公告)号：US06927528B2

公开(公告)日：2005-08-09

申请号：US10754716

申请日：2004-01-12

Applicant: François Barillot ,  Frank Claeyssen ,  Ronan Le Letty

Inventor： François Barillot ,  Frank Claeyssen ,  Ronan Le Letty

IPC: H01L41/09 ,  H02N2/02 ,  H02N2/04 ,  H01L41/08

CPC classification number: H02N2/028 ,  H02N2/0095 ,  H02N2/043

Abstract: The piezoactive actuator with amplified movement comprises a first sub-assembly formed by a mechanical movement amplifier and a second sub-assembly equipped with piezoactive elements. An interface with a load and an interface with a base, respectively placed at the peaks of a small axis of the shell and designed for actuating the load with respect to the base, define an actuating axis. A longitudinal deformation of the large axis enables a deformation of the small axis to be induced, designed to generate a movement at the interface with the load, the component of which movement along the small axis is amplified. At least one zone made of elastomer material is arranged at least substantially along the actuating axis to dampen deformations and increase the capacity of the actuator to resist external stresses. The actuator comprises at least one free space adjacent to the elastomer material zones in a direction orthogonal to the actuating axis.

Abstract translation: 具有放大运动的压电致动器包括由机械运动放大器和装备有压电元件的第二子组件形成的第一子组件。 具有负载和与基座的接口的接口分别放置在壳体的小轴的峰部处，并被设计成相对于基座致动负载，限定致动轴。 大轴的纵向变形使得能够感应的小轴的变形被设计成在与负载的界面处产生运动，沿着小轴的运动的分量被放大。 至少一个由弹性体材料制成的区域至少基本沿着致动轴线布置以阻尼变形并增加致动器抵抗外部应力的能力。 所述致动器包括与所述弹性体材料区域相邻的至少一个与所述致动轴线正交的方向的自由空间。

公开(公告)号：US20230266563A1

公开(公告)日：2023-08-24

申请号：US18113673

申请日：2023-02-24

Applicant: CEDRAT TECHNOLOGIES

Inventor： Gérald AIGOUY ,  Adrien GUIGNABERT ,  Etienne BETSCH ,  Augustin BEDEK ,  Nicolas BOURGEOT ,  Frank CLAEYSSEN

IPC: G02B7/182 ,  G02B26/08 ,  H02N2/02

CPC classification number: G02B7/182 ,  G02B26/0816 ,  H02N2/028

Abstract: A piezoelectric device comprises a fixed frame and a mirror carrier defining several support points securing a mirror. The mirror carrier is mounted rotatable. Several piezoelectric actuators are fixed to the support and deform independently in translation in a first direction. Each piezoelectric actuator moves the support area of the mirror carrier. The mirror carrier defines several attachment points. Each attachment point connects the mirror carrier mechanically with a piezoelectric actuator. The support points and attachment points are distinct from one another. The mirror carrier defines a plurality of flexion areas. The support points are movable with respect to one another. The piezoelectric actuators supplied in push-pull mode drive the support points making the mirror rotate perpendicularly to the first direction.

公开(公告)号：US20040140737A1

公开(公告)日：2004-07-22

申请号：US10754716

申请日：2004-01-12

Applicant: CEDRAT TECHNOLOGIES

Inventor： Francois Barillot ,  Frank Claeyssen ,  Ronan Le Letty

IPC: H01L041/08

CPC classification number: H02N2/028 ,  H02N2/0095 ,  H02N2/043

Abstract: The piezoactive actuator with amplified movement comprises a first sub-assembly formed by a mechanical movement amplifier and a second sub-assembly equipped with piezoactive elements. An interface with a load and an interface with a base, respectively placed at the peaks of a small axis of the shell and designed for actuating the load with respect to the base, define an actuating axis. A longitudinal deformation of the large axis enables a deformation of the small axis to be induced, designed to generate a movement at the interface with the load, the component of which movement along the small axis is amplified. At least one zone made of elastomer material is arranged at least substantially along the actuating axis to dampen deformations and increase the capacity of the actuator to resist external stresses. The actuator comprises at least one free space adjacent to the elastomer material zones in a direction orthogonal to the actuating axis.

Abstract translation: 具有放大运动的压电致动器包括由机械运动放大器和装备有压电元件的第二子组件形成的第一子组件。 具有负载和与基座的接口的接口分别放置在壳体的小轴的峰部处，并被设计成相对于基座致动负载，限定致动轴。 大轴的纵向变形使得能够感应的小轴的变形被设计成在与负载的界面处产生运动，沿着小轴的运动的分量被放大。 至少一个由弹性体材料制成的区域至少基本沿着致动轴线布置以阻尼变形并增加致动器抵抗外部应力的能力。 所述致动器包括与所述弹性体材料区域相邻的至少一个与所述致动轴线正交的方向的自由空间。

公开(公告)号：US11009110B2

公开(公告)日：2021-05-18

申请号：US16781339

申请日：2020-02-04

Applicant: CEDRAT TECHNOLOGIES

Inventor： François Barillot ,  Christian Belly ,  Adrien Guignabert

IPC: F16H25/20 ,  F16H25/24 ,  H02N2/02 ,  G02B26/08

Abstract: The motion control mechanism comprises a rotor mounted rotating around an axis. The rotor has a first threaded part and a second threaded part separated by a central part placed in contact with a stator excited by an oscillator. A frame defines a first threaded part collaborating with the first threaded part of the rotor. The second threaded part of the rotor collaborates with an output shaft. Rotation of the rotor with respect to the frame results in movement of the output shaft along the axis. The oscillator comprises an oscillating mass excited by an angular actuator formed by piezoelectric actuators arranged around a star-shaped support. The oscillator is fitted inside the rotor configured in the form of a bell and comprising several stressed sectors.

公开(公告)号：US20200248787A1

公开(公告)日：2020-08-06

申请号：US16781339

申请日：2020-02-04

Applicant: CEDRAT TECHNOLOGIES

Inventor： François BARILLOT ,  Christian BELLY ,  Adrien GUIGNABERT

IPC: F16H25/20 ,  F16H25/24 ,  H02N2/02

Abstract: The motion control mechanism comprises a rotor mounted rotating around an axis. The rotor has a first threaded part and a second threaded part separated by a central part placed in contact with a stator excited by an oscillator. A frame defines a first threaded part collaborating with the first threaded part of the rotor. The second threaded part of the rotor collaborates with an output shaft. Rotation of the rotor with respect to the frame results in movement of the output shaft along the axis. The oscillator comprises an oscillating mass excited by an angular actuator formed by piezoelectric actuators arranged around a star-shaped support. The oscillator is fitted inside the rotor configured in the form of a bell and comprising several stressed sectors.

公开(公告)号：US09780290B2

公开(公告)日：2017-10-03

申请号：US14572558

申请日：2014-12-16

Applicant: THALES ,  CEDRAT TECHNOLOGIES

Inventor： Christophe Devilliers ,  Félix Aguilar ,  Julien Ducarne ,  Francois Barillot ,  Frank Claeyssen

IPC: H01L41/09 ,  H01L41/12 ,  H02N2/02 ,  H02N2/06

CPC classification number: H01L41/0986 ,  H01L41/12 ,  H02N2/02 ,  H02N2/06

Abstract: A nanometer-scale precision actuator comprises a base, an intermediate structure, an output interface, and two linear elements producing a controllable extension in the same longitudinal direction, each between a first and a second end. A first of the two elements has a first end fixed onto the intermediate structure and a second end fixed onto the base, a second of the two elements has a first end fixed onto the intermediate structure and a second end fixed to the output interface. The base and the intermediate structure are positioned in such a manner that the controllable extension of the second element produces a displacement of the actuator in a first direction and the controllable extension of the first element produces a displacement of the actuator in a second direction, opposite to the first direction, with respect to the base.

公开(公告)号：US08004153B2

公开(公告)日：2011-08-23

申请号：US12450119

申请日：2008-03-12

Applicant: Frank Claeyssen ,  Francois Barillot

Inventor： Frank Claeyssen ,  Francois Barillot

IPC: H02N2/00 ,  H01L41/09

CPC classification number: H02N2/101 ,  H02N2/025 ,  H02N2/043 ,  H02N2/108

Abstract: The invention relates to a fine positioning system using an inertial motor based on a mechanical amplifier that comprises a first amplified inertial sub-assembly including a mechanical amplifier, a piezoactive member and a countermass. A second relative drive sub-assembly includes a clamp and a clamped member attached to the first amplified inertial sub-assembly. Asymmetric excitation cycles of the first inertial sub-assembly generate impact forces and movements amplified in a driving direction (z), thus resulting in sliding and adhesion successions of the clamped member in the clamp in order to generate a relative translation movements of the points A and B relative to the point D. The mechanical amplifier increases the step size and reduces the supply inrush currents. Fine and dynamic positioning of the point B relative to the point D can be achieved with augmented strokes using the amplifier.

Abstract translation: 本发明涉及一种使用基于机械放大器的惯性电动机的精细定位系统，该机械放大器包括包括机械放大器，压电构件和反质量的第一放大惯性子组件。 第二相对驱动子组件包括附接到第一放大惯性子组件的夹具和夹紧构件。 第一惯性子组件的不对称激励循环产生沿驱动方向（z）放大的冲击力和运动，从而导致夹紧构件在夹具中的滑动和粘附继续，以产生点A的相对平移运动 和B相对于点D.机械放大器增加了步长并减少了供电浪涌电流。 点B相对于点D的精细动态定位可以通过使用放大器的增强行程来实现。

公开(公告)号：US11501903B2

公开(公告)日：2022-11-15

申请号：US17011091

申请日：2020-09-03

Applicant: CEDRAT TECHNOLOGIES

Inventor： Frank Claeyssen ,  Gérald Aigouy ,  Kevin Benoit

IPC: H01F7/08 ,  H01F7/02 ,  H01F7/06 ,  H01F7/16

Abstract: The actuator comprises a movable armature swivelling with respect to a stator provided with flanges on which magnets are fitted and a coil fitted around one of the flanges. The magnets have an axial magnetisation in a z axis and are aligned in an x axis. The movable armature is arranged between the magnets in the x axis. The movable armature is mounted on a guide imposing swivelling around a y axis perpendicular to the x and z axes. The movable armature is separated from the magnets by air-gaps. Each magnet forms a static magnetic circuit with one end of the movable armature and one of the flanges. The coil forms a dynamic magnetic circuit with the ends of the movable armature and the flanges.