公开(公告)号：US20220316618A1

公开(公告)日：2022-10-06

申请号：US17596782

申请日：2020-06-19

Applicant: Moving Magnet Technologies

Inventor： Lionel Billet

IPC: F16K31/04 ,  F25B41/35 ,  F16K37/00

Abstract: A valve for controlling the circulation of a fluid, having a valve body comprising a movable control member, an electrical actuator comprising a stator and a rotor, a sealing cover extending from the valve body to the inside of the stator, the sealing cover being positioned at the interface between the rotor and the stator in such a way that the rotor is inside the cover and submerged in the fluid, the stator being isolated from the fluid, the rotor rotating about a first axis and being secured to a shaft extending along the first axis, the movable control member moving in a linear manner along a second axis or in rotation about the second axis, characterized in that the shaft has an end forming, with a toothed wheel driving the movable control member, a gear pair with non-intersecting or intersecting axes.

公开(公告)号：US20240283305A1

公开(公告)日：2024-08-22

申请号：US18570207

申请日：2022-06-14

Applicant: Moving Magnet Technologies

Inventor： Lionel Billet

IPC: H02K1/14 ,  H02K1/2713 ,  H02K7/116

CPC classification number: H02K1/146 ,  H02K1/2713 ,  H02K7/116

Abstract: A three-phase electric motor, formed by a stator part excited by three electric windings and a rotor comprising a plurality of magnetized poles, the stator part having radially extending teeth, the stator part comprising: three consecutive wound teeth, each carrying a winding, in a first angular sector, and one to three non-wound complementary teeth, in a second angular sector complementary to the first angular sector.

公开(公告)号：US20220255413A1

公开(公告)日：2022-08-11

申请号：US17595489

申请日：2020-05-15

Applicant: Moving Magnet Technologies

Inventor： Damien Laforge ,  Lionel Billet

IPC: H02K37/24 ,  H02K7/116 ,  H02K37/16

Abstract: A gear motor comprising a reduction gear train and a three-phase electric motor comprising a stator formed of a stack of sheets and 3*k electric coils and a rotor having 5 k*N pairs of magnetized poles, with k=1 or 2, the stator having two separate angular sectors alpha 1 and alpha 2, which are centered on the center of rotation of the motor and comprise an alternation of notches and 3*k*N teeth, which are regularly spaced and converge toward the center of rotation and define a cavity in which the rotor is arranged, the gear motor being characterized in that N=4 and in that alpha 1 is less than or equal to 180° and comprises all of the coils of the motor.

公开(公告)号：US11742737B2

公开(公告)日：2023-08-29

申请号：US17595489

申请日：2020-05-15

Applicant: Moving Magnet Technologies

Inventor： Damien Laforge ,  Lionel Billet

IPC: H02K37/16 ,  H02K37/24 ,  H02K7/116

CPC classification number: H02K37/24 ,  H02K7/1166 ,  H02K37/16

Abstract: A gear motor comprising a reduction gear train and a three-phase electric motor comprising a stator formed of a stack of sheets and 3*k electric coils and a rotor having 5 k*N pairs of magnetized poles, with k=1 or 2, the stator having two separate angular sectors alpha 1 and alpha 2, which are centered on the center of rotation of the motor and comprise an alternation of notches and 3*k*N teeth, which are regularly spaced and converge toward the center of rotation and define a cavity in which the rotor is arranged, the gear motor being characterized in that N=4 and in that alpha 1 is less than or equal to 180° and comprises all of the coils of the motor.

公开(公告)号：US11329531B2

公开(公告)日：2022-05-10

申请号：US16770306

申请日：2018-12-05

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Lionel Billet ,  Michaël Delbaere ,  Valentin Preault ,  Gaël Andrieux

IPC: H02K7/14 ,  F16K31/04 ,  H02K11/215 ,  F16K37/00 ,  H02K21/16

Abstract: The disclosure relates to a valve for controlling the circulation of a fluid, having a valve body and a housing containing an electric motor composed of a stator and of a rotor, a needle, a sealing bell and also a fixed screw or a fixed nut. The fixed screw or the fixed nut is secured to the valve body, and the stator is secured to the valve body via the housing. The sealing bell is positioned at the interface between the rotor and the stator in such a way that the screw/nut, the rotor and the needle are within this bell and submerged in the fluid, the stator being isolated from the fluid. Furthermore, the rotor has the function of a nut or of a screw, and has a helical movement imposed by the fixed screw or the fixed nut and drives the needle axially. The motor is a brushless polyphase motor with radial principal magnetic flux.

公开(公告)号：US10050487B2

公开(公告)日：2018-08-14

申请号：US15025148

申请日：2014-10-07

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Stéphane Biwersi ,  Lionel Billet

IPC: H02K3/46 ,  H02K1/14 ,  H02K3/34 ,  H02K3/52 ,  H02K1/27 ,  H02K3/04 ,  H02K15/00 ,  H02K15/03

Abstract: An electrical machine includes a tubular rotor magnetised to have circumferential polar alternations, and a stator including a body that is traversed by a channel having an inner transverse section that substantially corresponds to the outer transverse section of the rotor, the body carrying a plurality of windings, the stator being surrounded by an outer ferromagnetic envelope, the body being extended by three, four or six radial projections made from an electrically insulating material having, in the transverse cross section, a longitudinal core for receiving a winding, the core being extended by a peripheral extension having an outer surface that matches the inner surface of the envelope and covers the wound area. A method for producing such an electrical machine is also provided.