Fanuc Corporation

Mitsubishi Heavy Industries Limited

Ntt Docomo, Inc.

Fujitsu Fanuc Limited

Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.

Telefonaktiebolaget Lm Ericsson (Publ)

U-Mhi Platech Co., Ltd.

Eddio Corporation

Mitsubishi Industries Automotive Thermal Systems Co., Ltd.

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Shinichi Isobe

Hiroomi Fukuyama

Wataru Yamada

Shigeki Senoo

Atsushi Iwasaki

Mikito Sasaki

Hiroki Takeda

Ken Igarashi

Yoshitomo Noda

Takehiko Nishida

Yuichi Sekine

Kazuki Hosono

Takuyoshi Yamada

Makoto Hattori

Katsutoshi Nishida

Kazuo Sawada

Takashi Yamauchi

Yoshiaki Ikeda

Takashi Koshimizu

Hidetsugu Komiya

Takatoshi Okagawa

Kenji Nishimura

Mikio Yonekura

Takeshi Ikemi

Hiroshi Sato

Takashi Arai

Masanori Takahashi

Takao Sakurai

Shin Asano

Manhee Jo

Mitsuto Miyata

Makoto Yamazaki

Atsushi Yuge

Masahiro Sawada

Hisanobu Shinoda

Takuzo Shigihara

Csaba Keszei

Akihiko Umeda

Zoltan Richard Turanyi

Takeshi Ihara

Masafumi Hamasaki

Andras Valko

Mitsugu Nakamura

Yoshimasa Kagawa

Minoru Kataoka

Yoshihiro Hashimoto

Hideyuki Kudo

Satoshi Nakatsuka

Takaya Shirasu

Kazumi Ueda

Katsunari Sato

Masahiko Ezumi

Masahiro Nii

Akiko Kasami

Norihito Yanagita

A coil for a motor includes a coil which is formed of a conductor wound around an axis; and a plurality of cooling portions which are provided to correspond to different winding layers in the conductor. Each of the cooling portions includes a primary portion protruding from the winding layer radially outward and a secondary portion extending from a tip of the primary portion toward a first side in a direction of the axis. The primary portions are formed so that the protrusion length of one of the primary portions, which is located closer to a second side in the direction of the axis than another of the primary portions, is longer than that of the another of the primary portions.

Coil for motor, method for manufacturing coil for motor, and motor

A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion and having a diameter decreasing from an upstream side on one side in the axis direction toward a downstream side on another side in the axis direction, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller, the motor including a rotor having a ring-like shape and being fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and being fixed in the shroud, in which the motor is a conical motor in which diameters of the rotor and the stator decrease from the upstream side toward the downstream side.

Fluid machine and underwater vehicle

A fluid machine includes: a shaft portion; a shroud having an inside surface with a diameter decreasing from an upstream side toward a downstream side, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller and including a rotor having a ring-like shape fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and fixed in the shroud, in which a plurality of the propellers are provided to be spaced apart in the axis direction, the motors are provided in an identical number to the propellers to correspond to each of the propellers, and of a plurality of motors, the rotor of the motor positioned more on the downstream side has a smaller average outside diameter.

Fluid machine for underwater vehicle and underwater vehicle

A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a first propeller provided rotatably around the axis between the shaft portion and the shroud; a second propeller provided rotatably around the axis between the shaft portion and the shroud on the downstream side of the first propeller; an outer periphery driving motor provided in the shroud and configured to rotationally drive the first propeller; and an inner periphery driving motor provided in the shaft portion and configured to rotationally drive the second propeller in a direction opposite to the rotational direction of the first propeller.

A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a propeller provided rotatably around the axis between the shaft portion and the shroud; a motor provided in the shroud and configured to rotationally drive the propeller; and a bearing apparatus provided only to the shaft portion, out of the shroud and the shaft portion, and rotationally supporting the propeller.

An axial-gap coreless rotary electric machine includes rotors, stators, and a case. Armature coils of the stators include a first coil segment and a second coil segment facing the first coil segment. The case includes a first case segment and a second case segment facing the first case segment.

Rotary electric machine and method of manufacturing rotary electric machine

A rotor for an electric motor includes: a rotating element extending along an axis; and a retaining body formed of metal and configured to hold the rotating element from an outer peripheral side, where the retaining body includes: a plurality of annular members annularly surrounding an outer peripheral surface of the rotating element and arranged at intervals in the axis direction; and a plurality of connecting members arranged in a circumferential direction between the annular members adjacent to each other so as to connect the annular members. As a result, a path of eddy current is limited and the eddy current can be reduced.

Rotor for electric motor, and electric motor

A fluid machine includes: a shaft portion; a shroud surrounding the shaft portion and including an inside surface that forms a flow path-forming surface defining a flow path with the shaft portion; a first propeller rotatably provided in the flow path; a second propeller rotatably provided on a downstream side of the first propeller in the flow path; and a motor including a rotor that is fixed to an outer circumferential portion of the second propeller and that is accommodated in the shroud, and a stator that surrounds the rotor via a clearance and that is fixed in the shroud. A portion of the flow path-forming surface on a downstream side of the second propeller decreases in diameter toward the downstream side, and the shroud includes an inlet flow path that is open at a portion between the first propeller and the second propeller of the flow path-forming surface.

Fluid machine

A rotary electric machine includes an armature unit including an annular rotor configured to be rotatable around an axis and a stator disposed on a radially outer side of the annular rotor; an input or output shaft coupled at a first end thereof to an external device and extending along an axial direction of the annular rotor in a central space defined in a central portion of the annular rotor; and a coupling device disposed closer to a second end of the input or output shaft than an end of the annular rotor adjacent to the external device in the axial direction of the annular rotor and connecting the input or output shaft and the annular rotor so as to be able to transmit a torque.

Rotary electric machine, generator, and wind turbine power generation facility

A motor includes a stator that generates a rotating magnetic field; a rotor supported rotatably by a shaft within the stator; an outermost peripheral permanent magnet that is a permanent magnet embedded inside the rotor in an arced shape forming a convexity at the inner surface of the rotor; and an inner permanent magnet that is a permanent magnet embedded at the inside of the rotor in parallel to the outermost peripheral permanent magnet. The arc angle of the permanent magnets is greater than 90&#xb0;, the thickness at the center of both inner permanent magnets is thinner than the thickness at the center of the outermost peripheral permanent magnet, and the thickness at the ends of both inner permanent magnets is thicker than the thickness at the ends of the outermost peripheral permanent magnet.

Motor

In the regions around a magnetic shielding space, curved portions and having a rounded shape, which protrude toward the interior space of a magnetic shielding space, are formed at ends of a first side and a second side close to a first end and a second end of an outer-periphery side. In the vicinity of angular portions and of the magnetic shielding space that are positioned at both ends of the outer-periphery side, the magnetic flux density for a given cross-sectional area of a channel through which a short-circuit magnetic flux flows is reduced, and thus, the level of the short-circuit magnetic flux is reduced.

Motor having magnets embedded in a rotor and electric compressor using same

Provided is an electric motor in which magnets are reduced in size, thus achieving a reduction in cost, and in which a magnetic torque and a reluctance torque are effectively used by adjusting the magnetic flux density to improve the efficiency, thus achieving a reduction in size and cost. The electric motor is equipped with a rotor that includes a cylindrical rotor iron core in which main magnetic poles and auxiliary magnetic poles are alternately disposed in the circumferential direction, a substantially V-shaped magnet insertion hole that is provided for each of the main magnetic poles and whose convex portion faces a rotor center and is centered on a d-axis passing through the rotor center and the circumference-wise center of the main magnetic pole, and two magnets per pole that are embedded in the magnet insertion hole in a substantially V-shaped manner.

Electric motor and electric compressor using the same

When stator winding wires of respective phases are concentratedly wound on a plurality of tooth portions provided on a stator iron core via insulating bobbins the stator winding wires of the respective phases are wound in winding spaces in slot sides so that winding heights become gradually higher toward outside diameter sides from inside diameter sides of the insulating bobbins, and in spaces formed by the stator winding wires, at the radial insides of the insulating bobbins, at outsides in an axial direction relative to the stator winding wires, connecting wires of the stator winding wires of the respective phases and a neutral point at which distal ends thereof are star-connected are placed along the spaces.

Three-phase alternating current motor

When groovesA andB of an armatureand a rotorare formed by laser beam machining, a metal oxide layeris formed on wall surfaces defining the groovesA andB. The metal oxide layeris brought into sliding contact with a first contact surface Ato a fourth contact surface Ain a process in which an electromagnetic clutch is used, so that a part of the metal oxide layeris ground and peeled off, whereby particles made of a metal oxide are produced. The particles enter the contact surface between the armatureand the rotor, which increases the frictional force therebetween to thereby prevent slippage. As a result, the torque transmission capability of the electromagnetic clutch M is enhanced, and the increase in the torque of a scroll compressor is achieved.

Electromagnetic clutch, compressor, and manufacturing method for electromagnetic clutch

A mobile communication systemaccording to the present invention comprises handover control apparatusand radio terminal unit. The handover control apparatuscontrols handover of a radio terminal unitbetween access routers-provided in respective base stations-for radio communication with the radio terminal unit. The handover control apparatuscounts the number of relay routers for every candidate access router-for a destination of the radio terminal unit, from a gateway deviceand determines a COR on the basis of the number of relay routers for every access routerthus counted.

Handover control apparatus, relay router, gateway apparatus, access router, base station, mobile communication system, and handover control method

Growing community of inventors

Tokyo, Japan

Shinichi Isobe