A motorized pump system includes a switched reluctance motor with a motor rotor and a motor stator, and a pump surrounding the switched reluctance motor. The motor rotor is positioned radially inward or outward of the motor stator, and the pump includes a pump rotor integrated with the motor rotor. The pump rotor includes at least one impeller connected to the motor rotor.

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.

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.

An adjustable force device comprises a member that is mechanically guided for allowing a displacement according to a predetermined trajectory, and means for magnetically indexing the displacement by the magnetic interaction between a first ferromagnetic structure and a second ferromagnetic structure integral with a magnet, wherein the magnet is at least partially surrounded by an electric coil that modifies the magnetization of the permanent magnet according to the direction and the amplitude of the electric current flowing in the coil.

An adjustable force device comprises a member that is mechanically guided for allowing a displacement according to a predetermined trajectory, and means for magnetically indexing the displacement by the magnetic interaction between a first ferromagnetic structure and a second ferromagnetic structure integral with a magnet, wherein the magnet is at least partially surrounded by an electric coil that modifies the magnetization of the permanent magnet according to the direction and the amplitude of the electric current flowing in the coil.

A working unit includes a tool rotation mechanism, a first turning mechanism turning the tool rotation mechanism about a first axis, and a second turning mechanism turning the tool rotation mechanism and the first turning mechanism about a second axis perpendicular to the first axis. The first turning mechanism includes a motor having a stator connected to the second turning mechanism and a hollow shaft-shaped rotor arranged inside the stator in such a manner that the rotor is capable of rotating about the first axis, and a second rotating body including one arm portion coupled to one end portion of the rotor, the other arm portion coupled to the other end portion of the rotor, and an arm coupling portion that couples the arm portions to each other. The tool rotation mechanism is provided on the second rotating body.

A working unit includes a tool rotation mechanism, a first turning mechanism turning the tool rotation mechanism about a first axis, and a second turning mechanism turning the tool rotation mechanism and the first turning mechanism about a second axis perpendicular to the first axis. The first turning mechanism includes a motor having a stator connected to the second turning mechanism and a hollow shaft-shaped rotor arranged inside the stator in such a manner that the rotor is capable of rotating about the first axis, and a second rotating body including one arm portion coupled to one end portion of the rotor, the other arm portion coupled to the other end portion of the rotor, and an arm coupling portion that couples the arm portions to each other. The tool rotation mechanism is provided on the second rotating body.

An electric actuator comprises a housing, an electric motor comprising a wound stator and a rotor mounted on a shaft, a printed circuit for powering the stator, an intermediate plate, a mechanical reduction gear driven by the rotor and comprising toothed wheels mounted on axes, a cover and two centering pins. The motor is housed in a cavity of the housing, which guides one end of the shaft. The printed circuit is located above the stator. The intermediate plate is located above the circuit. The cover is located above the intermediate plate. The reduction gear is housed in a cavity of the cover, which guides one end of each axis. The intermediate plate guides the other end of the shaft and of the axes. Three pairs of centering holes receive the centering pins. The housing comprises a single sealing gasket positioned at the interface between the housing and the cover.

An electric actuator comprises a housing, an electric motor comprising a wound stator and a rotor mounted on a shaft, a printed circuit for powering the stator, an intermediate plate, a mechanical reduction gear driven by the rotor and comprising toothed wheels mounted on axes, a cover and two centering pins. The motor is housed in a cavity of the housing, which guides one end of the shaft. The printed circuit is located above the stator. The intermediate plate is located above the circuit. The cover is located above the intermediate plate. The reduction gear is housed in a cavity of the cover, which guides one end of each axis. The intermediate plate guides the other end of the shaft and of the axes. Three pairs of centering holes receive the centering pins. The housing comprises a single sealing gasket positioned at the interface between the housing and the cover.

An actuator includes an electric motor having a stator and a rotor that can be rotated relative to the stator about an axis of rotation (D). The stator comprises an inner stator part, a first outer stator part and a second outer stator part, wherein the inner stator part, the first outer stator part and the second outer stator part are aligned with one another along the axis of rotation (D) and the inner stator part forms an arrangement of first inner stator poles on a first side axially facing the first outer stator part, and forms an arrangement of second inner stator poles on a second side axially facing the second outer stator part, wherein the first inner stator poles and the second inner stator poles are integrally connected to one another as a single piece.