| Patent application number | Description | Published |
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| 20090064486 | METHOD OF MANUFACTURING PERMANENT-MAGNET SYNCHRONOUS MOTOR - In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque. | 03-12-2009 |
| 20090302788 | REGENERATING BRAKING SYSTEM INCLUDING SYNCHRONOUS MOTOR WITH FIELD EXCITATION AND CONTROL METHOD THEREOF - A regenerating braking system is provided, which includes: a synchronous motor with field coil excitation including a cylindrical stator coil, an inverter electrically connected to the stator coil, a battery electrically connected to the inverter, a rotor coil provided in an internal space of the stator coil, a two-way switch electrically connected to the rotor coil, and a capacitor electrically connected to the two-way switch; and a controller, wherein when the first differential calculus of acceleration of a load on the synchronous motor becomes negative, the controller stores regenerative power regenerated in the rotor coil from the stator coil, in the capacitor through the two-way switch, and wherein the controller supplies the regenerative power stored in the capacitor to the rotor coil through the two-way switch. | 12-10-2009 |
| 20110047782 | METHOD OF MANUFACTURING PERMANENT-MAGNET SYNCHRONOUS MOTOR - In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque. | 03-03-2011 |
| Patent application number | Description | Published |
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| 20100248561 | HYBRID OUTBOARD MOTOR - There is provided a hybrid outboard motor capable of transmitting motive power of a power source appropriately and efficiently in a limited space while achieving compactness, high performance, and the like. The hybrid outboard motor includes: a casing; a power unit housed in the casing; a screw disposed outside the casing, the screw being driven by the power unit; a power transmission system transmitting motive power of the power unit to the screw; an internal combustion engine and an electric motor serving also as a generator, the internal combustion engine and the electric motor being arranged in parallel in a beam direction in the casing; and a first clutch disposed between the internal combustion engine and the electric motor, wherein one or both of the internal combustion engine and the electric motor are connected to a propulsion unit including the screw so as to rotate it. | 09-30-2010 |
| 20100248562 | HYBRID OUTBOARD MOTOR - A power unit is housed in a casing, and a screw (propeller) is disposed outside the casing, the screw being driven by the power unit. The casing is formed as a watertight case in a substantially rectangular parallelepiped shape with a left-right width direction being a longitudinal direction, and the case has at least a front face portion coupled to a stern portion and a substantially flat upper face portion at a substantially same height as a top portion of the stern portion. | 09-30-2010 |
| 20110244738 | ELECTRIC OUTBOARD MOTOR - In an electric outboard motor to be driven by an electric motor, the electric motor is formed in a watertight manner and is disposed to be exposed to the outside. Further, the electric motor is an air cooled type, and a shape of the electric motor is in a substantially flat shape in which a dimension in a horizontal direction perpendicular to an output shaft of the electric motor is made larger than a dimension in a height direction. The electric motor, when a hull is seen in plan view, is disposed in a manner that a front portion of the electric motor overlaps a transom board of the hull at the rear. | 10-06-2011 |
| 20110244739 | ELECTRIC OUTBOARD MOTOR - An electric outboard motor to be driven by an electric motor separately includes an electric outboard motor main body including the electric motor and a propulsion section that applies the electric motor as motive power and a power supply section supplying power to the electric motor, in which the electric outboard motor main body and the power supply section are detachably connected by couplers via a cable. Further, the coupler of the cable is allowed to be attached and detached to and from the coupler on a side of the power supply section. | 10-06-2011 |
| 20110244740 | ELECTRIC OUTBOARD MOTOR - An electric outboard motor main body including an electric motor and a propulsion section that applies the electric motor as motive power, and a power supply section supplying power to the electric motor and a control section controlling the electric motor that are disposed inside a hull separately from the electric outboard motor main body are provided, and the electric motor and the propulsion section are attached to enable a tilt-up operation via a tilt pin provided in a horizontal direction, and the electric motor is disposed higher than the tilt pin in a state before the tilt-up operation. | 10-06-2011 |
