摘要:
What is disclosed are embodiments of a magnetic-drive axial-flow fluid displacement pump and turbine utilizing torque transfer by magnetic induction in which an induction cylinder fabricated from an electrical conductor is interposed into the gap between a pair of magnetically coupled primary and secondary rotors. Rotation of the induction cylinder relative to the coupled rotors evokes magnetic torque transfer in accordance with Lenz's Law. The primary rotor rotates within a toroid shaped stator. The stator may be configured for rolling biphasic coil control. The secondary rotor is attached to a propeller. The device may function as a turbine when fluid is directed to flow over the propeller. The device may function as a pump when AC power is supplied to the stator. Rolling biphasic motor control includes dividing motor coils into increments, then configuring groups of contiguous increments into virtual coils, which revolve in tandem with the primary rotor so to achieve continuous and optimal torque transfer with minimum torque ripple.
摘要:
Ein Rotor für einen Elektromotor umfasst einen Motorspalt (40), mit folgenden Merkmalen: einer Mehrzahl von miteinander befestigten Permanentmagneten (11, 12, 13, 14), wobei jeder Permanentmagnet eine dem Motorspalt zugewandte Seite (15c) aufweist; eine erste Beschichtung (20), die auf den dem Motorspalt (40) zugewandten Seiten (15c) der Permanentmagnete (11-14) angeordnet ist, wobei die erste Beschichtung (20) eine erste Wärmeleitfähigkeit aufweist; und eine zweite Beschichtung (30), die in Kontakt mit einer jeweils anderen Seite (15a, 15b) der Mehrzahl von Permanentmagneten (11-14) ist, wobei die zweite Beschichtung (30) eine zweite Wärmeleitfähigkeit aufweist, die größer ist als die erste Wärmeleitfähigkeit.
摘要:
The present invention relates to an active magnetic rotor-bearing assembly (1) for conveying a fluid comprising a rotor assembly (3) and a bearing assembly (2) for contactless bearing the rotor assembly (3), where the bearing assembly (2) comprises an even number of electromagnetic units (21) arranged around a central structure (22) each comprising a first salient (211) established by a magnetic material and a permanent magnet (211 p) providing a first magnetic pole and a coil (212) around the salient, further comprises an inter joke with inter joke portions (214) connected to the first salient (211) of each electromagnetic unit (21) and being separated from each other by structure spacers, providing a closed first magnetic flux (MF1) passing the rotor assembly (3) applying a first attractive force further comprising a position stabilizing portion perpendicular to the first attractive force on the rotor-assembly (3) and the coils (212) providing an electromagnetic flux (EF) between each first salient (211) and the rotor assembly (3) for applying adaptable axial force and/or tilting torque to the rotor assembly (3).
摘要:
A robot cleaner is disclosed. The robot cleaner includes a main body defining an outer appearance thereof, a suction device mounted inside the main body and including a suction motor and a suction fan, a suction port for sucking foreign substances from a floor upon operation of the suction device, a dust collection device for collecting foreign substances from air sucked through the suction port, one or more wheels for enabling the main body to travel autonomously, and a control unit for controlling the operation of the suction device and the wheels. The suction motor includes a stator and a rotor disposed around the stator and formed to be rotated with a rotating shaft. The rotor includes a first magnet for rotating the rotor around the stator, and a second magnet for preventing the rotating shaft of the suction motor from moving axially within a range of end play.
摘要:
A flywheel energy storage (1), particularly suitable to supply machines or installations in areas not served by electrical supply networks, and as alternative to traditional battery assemblies, comprising a box casing (2) defining a vacuum chamber (20) wherein a rotatable flywheel (3) being integral with a supporting shaft (4) is housed; said supporting shaft (4) being radially supported by a plurality of mechanical bearings (5) and being axially supported by magnets (6) suitable to partially or totally balance or to reverse the weight force acting on the flywheel.
摘要:
The support arrangement comprises an electric motor and a drive device fitted into a common frame so that the drive device is directly connected to a shaft of the electric motor. Each end of the shaft is rotatably supported on a radial magnetic bearing (100) and the radial magnetic bearing (100) is supported with a bearing shield (20) at the frame of the electric machine. The radial magnetic bearing (100) and the bearing shield (20) are integrated into a single unit.
摘要:
The disclosed embodiments provide a highly efficient, utility scale energy storage and retrieval system. The system is characterized by a chain of multiple rotating interconnected masses (8), a hollow toroid- shaped housing (1), plural pairs of permanent magnets (7, 11), magnets (7, 11) and coils (10) for the charging and discharging of electric energy and is operated by an automated control system. The mass (8) chain is fitted and rotating inside the housing (1), and the energy is stored into the rotational energy of the chain. The transformation of electrical energy into rotational energy or vice versa is carried out by using coil units (10). In order to minimize losses, the chain is magnetically levitating and a vacuum is pumped into the housing (1).
摘要:
A stator can for an electric motor of a motor-compressor is provided. The stator can may include an annular body configured to be disposed radially outward of a rotor of the electric motor. An inner radial surface of the annular body and an outer radial surface of the rotor may at least partially define a radial gap therebetween, and a first axial end portion of the annular body may at least partially define an inlet of the radial gap. The stator can may include a plurality of swirl breaks disposed about the first axial end portion of the annular body. The plurality of swirl breaks may be configured to reduce a swirling flow of the process fluid flowing to the inlet of the radial gap-