公开(公告)号：US20210065948A1

公开(公告)日：2021-03-04

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.

公开(公告)号：US10702889B2

公开(公告)日：2020-07-07

申请号：US15536485

申请日：2015-11-25

Applicant: CEDRAT TECHNOLOGIES

Inventor： Timothée Forissier ,  Nabil Bencheikh ,  Frank Claeyssen ,  Alexandre Pages

IPC: H01L41/053 ,  H01L41/09 ,  B06B1/06 ,  B06B3/00 ,  G10K15/04 ,  B08B3/12 ,  G10K11/24 ,  H04R17/10

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：US20030159735A1

公开(公告)日：2003-08-28

申请号：US10369611

申请日：2003-02-21

Applicant: CEDRAT TECHNOLOGIES

Inventor： Francois Barillot ,  Gilles Patient ,  Ronan Le Letty

IPC: F16K037/00

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.

Abstract translation: 该阀包括一个可移动的针头，该移动针头在阀体中具有由放大的压电致动器控制的运动。 围绕针的中间区域的波纹管在与阀体的第一端处成一体，并且在第二端处与针头成一体，以将致动器与压力室隔离。 针的至少一个柔性引导片一方面固定到阀体上，另一方面固定到针上。 这种柔性引导使得除了座椅和针之外，可以避免任何部分相对于另一部分滑动，容易产生磨损或污染颗粒。