Abstract: Provided is an electric propulsion device 106 including a propeller 131 and a motor 121 for rotating the propeller, wherein the propeller includes a rotary boss 132 secured to a rotating shaft 123 of the motor, and blades 133 protruding radially outward from the rotary boss. Further, the blades include a base end portion with an airfoil continuously changing such that a trailing edge comes to be in parallel to the rotating shaft of the motor from a radially outer side to the rotary boss, in a vicinity of the rotary boss.

Abstract: The purpose of the present invention is to provide a low-cost heat cycle system that can reduce power consumption; an in-wheel motor that is driven by using this heat cycle system; and a vehicle in which this heat cycle system is installed. This heat cycle system is provided with: a compressor; an accumulator; an electric drive unit comprising an electric motor; a refrigerant compressed by the compressor; and an indoor heat exchanger and an outdoor heat exchanger responsible for heat exchange of the refrigerant. The heat cycle system comprises a four-way valve that comprises a single circulation path for circulating the refrigerant and that can switch the connection destination of a refrigerant discharge section of the compressor to the indoor heat exchanger or the outdoor heat exchanger. A cooling unit of the electric drive unit is arranged upstream of the accumulator in the flow of the refrigerant.

Abstract: A dynamo-electric machine comprising: a stator core with plurality of slots, a coil covered with insulated conductor wire, wherein the coil comprising plurality of storages stored in the slots and plurality of coil ends that are outside of the slots, conductor of coil end close to the conductor of the heterophase coil having insulating materials at only one of the surfaces, either the inner diameter surface close to the conductor of the heterophase coil or outer diameter surface of the heterophase coil.

Abstract: The invention is to provide a semiconductor manufacturing apparatus system and a semiconductor device manufacturing method for reducing particles having an adverse effect in a manufacturing step of a semiconductor device.

Abstract: A radial-gap-type rotary electric machine, a production method therefore, a production device for a rotary electric machine teeth piece, and a production method therefore can achieve a high efficiency and have excellent productivity. A radial-gap-type rotary electric machine includes a rotation shaft, a rotator including an inner-peripheral-side rotator iron core rotatable around the rotation shaft and an outer-peripheral-side rotator iron core arranged on an outer peripheral side of the inner-peripheral-side rotator iron core and rotatable around the rotation shaft, and a stator disposed between the inner-peripheral-side rotator iron core and the outer-peripheral-side rotator iron core. A permanent magnet is provided on at least one of an outer-peripheral-side surface of the inner-peripheral-side rotator iron core and an inner-peripheral-side surface of the outer-peripheral-side rotator iron core.

Abstract: A radial gap type rotating electrical machine using amorphous metal that can realize high efficiency and is excellent in productivity is provided. The radial gap type rotating electrical machine according to the present invention includes a rotor including a rotary shaft and a rotor iron core that rotates around the rotary shaft, and a stator including a stator iron core that is disposed to face the rotor iron core. The stator iron core has an annular shape and has a back yoke (4) having a plurality of recesses provided along inner periphery, and a tooth (3) having one end fitted to the recess and the other end protruding toward the rotor iron core, the tooth (3) has a laminate in which amorphous metal foil strips are laminated in an axial direction of the rotary shaft, and an insulating member (2) that holds the laminate, and a magnetic material (1) is provided in an end portion on a side facing the rotor of the insulating member (2).

Abstract: A plurality of electrochemical corrosion protection systems (30) for underground buried structure installed geographically dispersed are utilized so as to predict an earthquake. Changes in amounts of current flowing through closed loop electric circuits (W) for electrochemical corrosion protection in the electrochemical corrosion protection systems (30) are detected and an earthquake is predicted based on the detected changes in the amounts of current.

Abstract: A coil bobbin of the present disclosure is a coil bobbin attached to a stator core of a distributed winding radial gap-type rotating electric machine, and includes a teeth holding portion and a slot insulator which are made of an insulator. The teeth holding portion has: a first wall surface that covers a first circumferential side surface of a tooth of the stator core; a second wall surface that covers at least a part of a second circumferential side surface of the tooth; and a third wall surface that covers both side surfaces in an axial direction of the tooth. The slot insulator is formed integrally with the first wall surface of the teeth holding portion, and has a plurality of through-holes extending in the axial direction and arrayed in a radial direction.

Abstract: An axial air-gap rotary electric machine includes a stator, a coil, and a bobbin. The bobbin includes a tube and a flange. The coil is wound on the outer periphery of the tube portion with regular winding. A number of turns of each of a plurality of layers wound around an external side of a last layer in contact with the flange is at least one less than a number of turns of each of a plurality of layers wound around an adjacent internal side of the last layer.

Abstract: The purpose of the present invention is to obtain a structure with which it is possible to improve the heat dissipation performance and efficiency of an axial gap dynamo-electric machine. Accordingly, the present invention is an axial gap dynamo-electric machine of such construction that a disc-shaped rotor in which permanent magnets are disposed is provided in the axial direction and a stator is disposed in the axial-direction center portion, wherein the outer circumferential side of a stator winding is in intimate contact with the inside diameter of a housing, embedding with a mold resin is used for the housing and a stator core and for a stator coil and the housing so that a connection is established with the housing, and the housing comprises a nonmagnetic, electrically nonconductive material.

Abstract: This invention reduces the shaft voltage of an axial-air-gap dynamo-electric machine while ensuring high output and high efficiency. Said axial-air-gap dynamo-electric machine comprises the following: a stator comprising a plurality of stator cores, each of which comprises a core and a coil, arranged in a circle around a shaft; a housing, the inside surface of which faces the stator radially; and at least one rotor, the surface of which faces the surface of the stator with a prescribed air gap interposed therebetween in the radial direction of the shaft. The rotor has, on the outside thereof, a conductive section comprising a conductive member. This axial-air-gap dynamo-electric machine has a first region where the inside surface of the housing faces the aforementioned conductive section radially and a second region, closer to the stator than the first region is, that extends to the coil side surfaces that face the rotor.

Abstract: A coil bobbin of the present disclosure is a coil bobbin attached to a stator core of a distributed winding radial gap-type rotating electric machine, and includes a teeth holding portion and a slot insulator which are made of an insulator. The teeth holding portion has: a first wall surface that covers a first circumferential side surface of a tooth of the stator core; a second wall surface that covers at least a part of a second circumferential side surface of the tooth; and a third wall surface that covers both side surfaces in an axial direction of the tooth. The slot insulator is formed integrally with the first wall surface of the teeth holding portion, and has a plurality of through-holes extending in the axial direction and arrayed in a radial direction.

Abstract: A radial gap type rotating electrical machine using amorphous metal that can realize high efficiency and is excellent in productivity is provided. The radial gap type rotating electrical machine according to the present invention includes a rotor including a rotary shaft and a rotor iron core that rotates around the rotary shaft, and a stator including a stator iron core that is disposed to face the rotor iron core. The stator iron core has an annular shape and has a back yoke (4) having a plurality of recesses provided along inner periphery, and a tooth (3) having one end fitted to the recess and the other end protruding toward the rotor iron core, the tooth (3) has a laminate in which amorphous metal foil strips are laminated in an axial direction of the rotary shaft, and an insulating member (2) that holds the laminate, and a magnetic material (1) is provided in an end portion on a side facing the rotor of the insulating member (2).

Abstract: A plurality of electrochemical corrosion protection systems (30) for underground buried structure installed geographically dispersed are utilized so as to predict an earthquake. Changes in amounts of current flowing through closed loop electric circuits (W) for electrochemical corrosion protection in the electrochemical corrosion protection systems (30) are detected and an earthquake is predicted based on the detected changes in the amounts of current.

Abstract: A highly reliable electromechanical integral motor is provided. In the electromechanical integral motor including an axial gap type motor and a power conversion control device, the power conversion control device is mounted on an end bracket portion of the motor. Additionally, a space is provided between the end bracket portion of the motor and the power conversion control device. Further, the end bracket portion of the motor and the power conversion control device are fixed by a plurality of fixing members, and at least one set of the plurality of fixing members is disposed to be spaced apart from each other.

Abstract: An axial-air-gap rotating electric machine with a stator bobbin is provided. The bobbin renders the respective turn counts of windings in the machine the same and minimizes the lengths of connecting wires between continuous windings regardless of the continuous turn count, the direction in which each winding is wound, and whether the number of stages is odd or even. The bobbin, which has a tubular shape that substantially matches the exterior shape of a core, is provided with flanges that extend outwards from near the respective openings in the bobbin. One of the flanges has two first notches, and the other flange has a second notch. The axial positions of the starting and finishing ends of coils on adjacent stator cores are the same, and the flanges containing the notches through which the ends of the coils are run are on the same side with respect to the openings.

Abstract: To reduce an axial voltage while securing a high output, high efficiency, and assemblability of an axial gap rotary electric machine. An axial gap rotary electric machine includes: a stator, formed by arranging a plurality of core members circularly about a shaft in a direction in which magnetic lines are parallel with the shaft, the core member having at least an iron core and a coil wound around an outer circumference of the iron core; at least one rotor facing the stator with a predetermined air gap interposed therebetween in a shaft axial direction; and a housing having an inner circumferential surface opposing the stator and the rotor in a radial direction. The axial gap rotary electric machine further includes a wiring board that has: a bus portion continuous in the circumferential direction; a coil connection portion protruding from the bus portion and connected to the coil; and an external connection portion protruding from the bus portion.

Abstract: A radial-gap-type rotary electric machine, a production method therefore, a production device for a rotary electric machine teeth piece, and a production method therefore can achieve a high efficiency and have excellent productivity. A radial-gap-type rotary electric machine includes a rotation shaft, a rotator including an inner-peripheral-side rotator iron core rotatable around the rotation shaft and an outer-peripheral-side rotator iron core arranged on an outer peripheral side of the inner-peripheral-side rotator iron core and rotatable around the rotation shaft, and a stator disposed between the inner-peripheral-side rotator iron core and the outer-peripheral-side rotator iron core. A permanent magnet is provided on at least one of an outer-peripheral-side surface of the inner-peripheral-side rotator iron core and an inner-peripheral-side surface of the outer-peripheral-side rotator iron core.

Abstract: To significantly improve a heat dissipation property of an axial gap rotary electric machine within a size necessary for configuring a motor. In an axial gap rotary electric machine comprising a stator and a rotor in an axial direction, the stator has a plurality of stator cores arranged in a circumferential direction and coils wound around the stator cores, and a heat pipe obtained by filling an inside of a metal hollow pipe with a refrigerant is arranged in a gap between adjacent coils formed in an outer diameter portion of the stator in a radial direction and a housing with a necessary insulation distance between the coils and the heat pipe. The heat pipe extends in a direction of a rotation axis and an opposite output side, and is in contact with a heat dissipating fin outside an end bracket on the opposite output side.

Abstract: To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.