Ihi Corporation

Osaka University

Ishikawajima-harima Heavy Industries Co., Ltd.

Narifumi Tojima

Takehiro Jikumaru

Norihisa Handa

Koshi Ishimoto

Toshiyuki Hirao

Satoru Ohashi

Gen Kuwata

Yukio Takahashi

Yasuyuki Shibui

Katsuhiro Hirata

Noboru Niguchi

Sho Hashizume

Eiki Morimoto

Takashi Majima

Ariff Zaini

Tetsuya Fukumoto

Mitsunao Sakamoto

Tsubasa Oshiumi

Hikaru Ishikawa

Dai Shizume

Nao Ota

This double stator-type rotary machine is provided with: an annular rotor; an outer stator that is disposed on the outer side of the rotor; and an inner stator that is disposed on the inner side of the rotor. The rotor is provided with permanent magnets that are arranged on the inner stator side.

Double stator-type rotary machine

The rotary machine of the present disclosure is provided with an annular stator that has: an annular yoke section; multiple salient poles that protrude radially inward and are arranged circumferentially; and coils disposed on the salient poles. Circumferential surfaces of the salient poles are formed into tapered surfaces that taper toward the tip of the salient poles, and the coils include a first coil and a second coil.

Rotary machine and method for manufacturing rotary machine

A double-stator switched reluctance motor includes an annular rotor, an outer stator disposed outside the rotor, and an inner stator disposed inside the rotor. Phases of the salient poles in a rotational direction of the rotor are different from each other in at least one of a set of first stator salient poles and second stator salient poles and a set of first rotor salient poles and second rotor salient poles.

Double-stator switched reluctance rotating machine

A magnetic wave gear device (A,B,F) includes: a first member (), a second member (), and a third member () which are rotatable relative to one another around a rotation axis (R). The second member () is disposed between the first member () and the third member (), and includes magnetic material pieces (). The first member () includes first permanent magnets (A,B). The third member () includes: a plurality of pole teeth (), a pole tooth () being wound with a coil (); and second permanent magnets (B), each second permanent magnet (B) being disposed between pole teeth () next to each other, and the magnetic poles of sides of the second permnanent magnets (B) facing the second member () being the same pole.

Magnetic wave gear device

A double stator switched reluctance rotating machine includes an annular rotor, an outer stator that is disposed outside the rotor, and an inner stator that is disposed inside the rotor; and employs a structure in which the rotor is provided with a bolt fastening hole passing through the rotor in an axial direction and the bolt fastening hole is provided at a position depending on magnetic characteristics of the outer and inner stators.

Double stator switched reluctance rotating machine

A double stator switched reluctance rotating machine includes an annular rotor, an outer stator that is disposed outside the rotor, and an inner stator that is disposed inside the rotor, and has a structure in which the outer and inner stators are connected to each other in parallel.

An object of the present invention to accurately and reliably detect rotational positions of a rotor irrespective of noise overlapping inductor voltage. Employed for accomplishing the aforementioned object in the present invention is a motor-driving device for rotating and driving a rotor by supplying predetermined drive signals to stator coils each corresponding to each phase of a DC brushless motor, the device comprising: a drive-signal-generating unit for generating the drive signals by switching direct current power based on a pulse-control signal; and a control-signal-generator unit for generating the pulse-control signal that controls the drive-signal-generating unit by intermittently generating the pulse-control signal; and for detecting the rotational position and the rotational velocity of the rotor based on inductor voltage obtained from the stator coils in a period in which generation of the pulse-control signal is suspended in each phase.

Motor-driving apparatus

There are provided with a motor rotor () fixed to a turbine shaft () and rotating together with the turbine shaft, a motor stator () surrounding the motor rotor and fixed within a bearing housing (), an inverted () converting a dc power into an ac power, and an inverter controller () controlling a frequency and a voltage of the ac power by the inverter. The inverter and the inverter controller are accommodated in a driver container (), and are coupled to a compressor housing () by an insulating coupling member ().

Growing community of inventors

Tokyo, Japan

Narifumi Tojima