Abstract: A top side-less pump system for managing multiphase fluid includes a pump subsystem having a suction and a discharge. A first gas liquid extraction unit has a multiphase fluid inlet and a liquid outlet. The liquid outlet is coupled to the suction for providing a liquid rich fluid to the bearing lubrications. An ejector is coupled to a gas outlet of the main gas liquid extraction unit to receive a gas rich fluid. A second gas liquid extraction unit is coupled to an outlet of the ejector. A water based lubrication liquid unit is coupled to the inlets of the pump and, after being energized at higher pressure, injected into the bearings through built in lubrication and cooling passages.

Abstract: A system configured to remotely maneuver a magnetic miniature device within a patient along a path conforming to a predetermined route is provided. The system comprises two coils, each configured to produce a magnetic field, and to be selectively pivoted about at least a first pivot axis within a first predetermined range of angles, a horizontal platform configured to support thereon the patient and to be disposed within the coils, and a controller configured to direct operation of the system. The predetermined range of angles constrains the system from maneuvering the miniature device along the route. The controller is configured to calculate a path comprising a plurality of segments, the path conforming to the route within a predetermined deviation. The controller is further configured to operate the coils within the predetermined range of angles to induce a magnetic field to maneuver the miniature device along the path.

Abstract: A novel integrated modular, multi-stage motor-pump/compressor device (10) is disclosed herein. In one example, the device (10) includes an outer housing (12) an electric motor stator (25) positioned within the outer housing (12) and a rotatable integrated motor/pump rotor (18) positioned within the electric motor stator (25). The rotatable integrated motor/pump rotor (18) comprises at least one electromagnet driver device (42, 33, 37) that is adapted to be electromagnetically coupled with the electric motor stator (25) and at least one impeller (28), where an inner surface (34A) of the rotatable integrated motor/pump rotor (18) and the impeller (28) define a primary process fluid flow path (36) within the rotatable integrated motor/pump rotor (18).

Abstract: A top side-less pump system for managing multiphase fluid includes a pump subsystem having a suction and a discharge. A first gas liquid extraction unit has a multiphase fluid inlet and a liquid outlet. The liquid outlet is coupled to the suction for providing a liquid rich fluid to the bearing lubrications. An ejector is coupled to a gas outlet of the main gas liquid extraction unit to receive a gas rich fluid. A second gas liquid extraction unit is coupled to an outlet of the ejector. A water based lubrication liquid unit is coupled to the inlets of the pump and, after being energized at higher to pressure, injected into the bearings through built in lubrication and cooling passages.

Abstract: A method includes monitoring electrical output in an open control loop from a variable speed drive to a remote permanent magnet motor, the variable speed drive electrically connected to the permanent magnet motor via a power transmission line. The method includes, in response to detecting a variation in the electrical output at the variable speed drive, synchronizing a frequency of a rotor shaft of the permanent magnet motor with a constant electromagnetic field frequency of a stator of the permanent magnet motor for a predetermined period of time. After the predetermined period of time, the method includes increasing the electromagnetic field frequency of the stator to an operational frequency threshold to accelerate the frequency of the rotor shaft of the permanent magnet motor. In response to reaching the operational frequency threshold, the method includes determining an internal position of the rotor based on the variable electromagnetic field frequency.

Abstract: A novel integrated modular, multi-stage motor-pump/compressor device (10) is disclosed herein. In one example, the device (10) includes an outer housing (12) an electric motor stator (25) positioned within the outer housing (12) and a rotatable integrated motor/pump rotor (18) positioned within the electric motor stator (25). The rotatable integrated motor/pump rotor (18) comprises at least one electromagnet driver device (42, 33, 37) that is adapted to be electromagnetically coupled with the electric motor stator (25) and at least one impeller (28), where an inner surface (34A) of the rotatable integrated motor/pump rotor (18) and the impeller (28) define a primary process fluid flow path (36) within the rotatable integrated motor/pump rotor (18).

Abstract: A method includes monitoring electrical output in an open control loop from a variable speed drive to a remote permanent magnet motor, the variable speed drive electrically connected to the permanent magnet motor via a power transmission line. The method includes, in response to detecting a variation in the electrical output at the variable speed drive, synchronizing a frequency of a rotor shaft of the permanent magnet motor with a constant electromagnetic field frequency of a stator of the permanent magnet motor for a predetermined period of time. After the predetermined period of time, the method includes increasing the electromagnetic field frequency of the stator to an operational frequency threshold to accelerate the frequency of the rotor shaft of the permanent magnet motor. In response to reaching the operational frequency threshold, the method includes determining an internal position of the rotor based on the variable electromagnetic field frequency.

Abstract: A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.

Abstract: A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.

Abstract: A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.

Abstract: A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.

Abstract: A brushless electric machine comprising a housing fabricated from a magnetically permeable material and having an interior region, a stator mounted within the interior region and attached to the housing wherein the stator has a stator winding, a rotor mounted for rotation about a rotational axis within the stator. The rotor comprises a plurality of magnetic pole pieces and permanent magnets circumferentially arranged in an alternating configuration such that each permanent magnet is positioned intermediate a pair of consecutive magnetic pole pieces and the axis of magnetization lies in the plane of rotation of the rotor. The rotor is separated from the stator windings by a first air gap so as to form a first magnetic circuit. The rotor further comprises a first side, a first rotor end cap attached to the first side, a second side, and a second rotor end cap attached to the second side. Each rotor end cap contacts at least some of the magnetic pole pieces.

Abstract: A rotor for an electric machine comprising a plurality of independent poles (58) having a triangular cross section shape and permanent magnets (56) having a trapezoidal cross section shape. The shapes of the independent poles and permanent magnets cooperate to improve the integrity of the lodgment of each permanent magnet.

Abstract: A brushless electric machine comprising a housing fabricated from a magnetically permeable material and having an interior region, a stator mounted within the interior region and attached to the housing wherein the stator has a stator winding, a rotor mounted for rotation about