Abstract: Provided is a rotary electric machine that is able to suppress vibration noise of the rotary electric machine caused by an out-of-plane deformation. The rotary electric machine includes a stator including a frame being an annular member, and a plurality of split cores arranged in an annular shape and fitted to and held by a radially inner portion of the frame, wherein the frame is formed such that an inner diameter of each of both end portions thereof is smaller than an inner diameter of an axial middle portion thereof, and fitting fastening force between the frame and each split core is set to be greater at both the end portions than at the axial middle portion.

Abstract: Provided is a rotary electric machine that is able to suppress vibration noise of the rotary electric machine caused by an out-of-plane deformation. The rotary electric machine includes a stator including a frame being an annular member, and a plurality of split cores arranged in an annular shape and fitted to and held by a radially inner portion of the frame, wherein the frame is formed such that an inner diameter of each of both end portions thereof is smaller than an inner diameter of an axial middle portion thereof, and fitting fastening force between the frame and each split core is set to be greater at both the end portions than at the axial middle portion.

Abstract: The rotary electric machine includes: a stator that includes: a stator core; and a stator coil; a ring member that accommodates the stator so as to hold the stator core in an internally fitted state; a housing case formed into a floored cylindrical shape with an opening at a first end portion, and that accommodates the ring member and the stator; and a cover mounted onto the first end portion of the housing case so as to cover the opening of the housing case, wherein a first end portion of each of the ring member and the housing case is fixed by fastening to the cover such that a fastening direction of each is oriented in an axial direction, and a second end portion of the ring member is fitted into and held by the housing case by means of an interfitting member.

Abstract: A piezoelectric material for a combustion pressure sensor, a method for producing the piezoelectric material, and a combustion pressure sensor using the piezoelectric material are provided. The piezoelectric material of the present invention includes a single crystal containing Ca, Ta, an element M (M is Al or Ga), Si, and O, the single crystal has the same crystal structure as the crystal structure of langasite represented by La3Ga5SiO14, and at least the content of the element M is insufficient for the stoichiometric composition represented by Ca3TaM3Si2O14. Preferably, in a case where the element M is Ga, each content of the Ca and the Si is excessive for the stoichiometric composition, and in a case where the element M is Al, the content of the Ca is excessive for the stoichiometric composition, and the content of the Ta is insufficient for the stoichiometric composition.

Abstract: This invention is concerning a rotary electric machine 1, this electric motor 1 being provided with an inner cylinder 2, a rotor 3 provided so as to be rotatable inside the inner cylinder 2, a stator 4 fixed to the inner cylinder 2 and separated via a gap from an outer periphery of the rotor 3, and an outer cylinder 8 that covers an entire periphery of the inner cylinder 2 and forms a space 15, which serves as a coolant passage, in conjunction with the inner cylinder 2, wherein both ends of the inner cylinder 2 and the outer cylinder 8 in an axial direction are fixed to each other by cylinder welding portions 9 formed by welding. Accordingly, a rotary electric machine that is small and light can be obtained at low cost.

Abstract: An intraperitoneal insertion member 10 includes: an inguinal-hernia repair mesh 1 folded or rolled into an elongated shape; and a cover material 2 that covers an external surface of the mesh.

Abstract: In the rotary electric machine according to the present invention, a first O-ring 13a is mounted between a pair of position regulating members 12 that are press-fitted onto and held in a vicinity of a second axial end of an outer circumferential surface of a stator core housing portion 10a so as to be spaced apart in an axial direction, and is pressed and held between the stator core housing portion 10a and a cylindrical portion 16, and a second O-ring 13b is mounted into an O-ring housing groove 11 that is recessed into an outer circumferential surface of a frame mounting portion 10b, and is pressed and held between the frame mounting portion 10b and the cylindrical portion 16, such that a coolant channel 22 is formed between the frame 10 and the cylindrical portion 16.

Abstract: Provided is a stator for rotating electric machine that enables reduction in imbalance of compression stress on a stator core between a thin portion due to formation of a cooling passage of a frame and a thick portion where there is no cooling passage. This stator for rotating electric machine includes: a stator core 2 formed in a cylindrical shape; and a frame 4 having an inner circumferential side to which the stator core 2 is fitted and fixed with a predetermined interference, and an outer circumferential side on which a passage 6 for cooling fluid for cooling the stator core 2 is formed, wherein the interference at a thin portion A due to formation of the cooling passage 6, of the frame 4 is greater than the interference at a thick portion B where there is no cooling passage 6.

Abstract: In the rotary electric machine, bus-bar lead terminals of bus bars, which are held by a connection component, are formed in such a way that the bus-bar lead terminals are protruded from the bus bars to an axis direction of a stator, and a plurality of bus-bar storage grooves are formed by using a plurality of partitions which are concentrically arranged in a diameter direction of the stator via gaps, and in the plurality of partitions, lengths, in the axis direction, of the most outer circumference partition, which is positioned at the most outer circumference side in the diameter direction, and the most inner circumference partition, which is positioned at the most inner circumference side in the diameter direction, are longer than lengths, in the axis direction, of a plurality of middle partitions, which are positioned between the most outer circumference partition and the most inner circumference partition.

Abstract: A piezoelectric material for a combustion pressure sensor, a method for producing the piezoelectric material, and a combustion pressure sensor using the piezoelectric material are provided. The piezoelectric material of the present invention includes a single crystal containing Ca, Ta, an element M (M is Al or Ga), Si, and O, the single crystal has the same crystal structure as the crystal structure of langasite represented by La3Ga5SiO14, and at least the content of the element M is insufficient for the stoichiometric composition represented by Ca3TaM3Si2O14. Preferably, in a case where the element M is Ga, each content of the Ca and the Si is excessive for the stoichiometric composition, and in a case where the element M is Al, the content of the Ca is excessive for the stoichiometric composition, and the content of the Ta is insufficient for the stoichiometric composition.

Abstract: This invention is concerning a rotary electric machine 1, this electric motor 1 being provided with an inner cylinder 2, a rotor 3 provided so as to be rotatable inside the inner cylinder 2, a stator 4 fixed to the inner cylinder 2 and separated via a gap from an outer periphery of the rotor 3, and an outer cylinder 8 that covers an entire periphery of the inner cylinder 2 and forms a space 15, which serves as a coolant passage, in conjunction with the inner cylinder 2, wherein both ends of the inner cylinder 2 and the outer cylinder 8 in an axial direction are fixed to each other by cylinder welding portions 9 formed by welding. Accordingly, a rotary electric machine that is small and light can be obtained at low cost.

Abstract: A cooling structure for cooling a stator core of a rotating electrical machine includes: a stator core (1b) arranged along an outer periphery of a rotor fixed to a rotary shaft (AX) of a rotating electrical machine; a stator frame (2) extending along an outer peripheral surface of the stator core (1b), the stator frame being configured to fix and support the stator core from the outer peripheral surface side thereof; and a motor case (7) having small-diameter end portions on both sides in an axial direction of the rotary shaft (AX), the small-diameter end portions being welded with airtightness onto an outer peripheral surface of the stator frame so that the motor case forms a space, which is the coolant flow path (CC), together with the outer peripheral surface of the stator frame.

Abstract: Provided is a stator for rotating electric machine that enables reduction in imbalance of compression stress on a stator core between a thin portion due to formation of a cooling passage of a frame and a thick portion where there is no cooling passage. This stator for rotating electric machine includes: a stator core 2 formed in a cylindrical shape; and a frame 4 having an inner circumferential side to which the stator core 2 is fitted and fixed with a predetermined interference, and an outer circumferential side on which a passage 6 for cooling fluid for cooling the stator core 2 is formed, wherein the interference at a thin portion A due to formation of the cooling passage 6, of the frame 4 is greater than the interference at a thick portion B where there is no cooling passage 6.

Abstract: In the rotary electric machine, bus-bar lead terminals of bus bars, which are held by a connection component, are formed in such a way that the bus-bar lead terminals are protruded from the bus bars to an axis direction of a stator, and a plurality of bus-bar storage grooves are formed by using a plurality of partitions which are concentrically arranged in a diameter direction of the stator via gaps, and in the plurality of partitions, lengths, in the axis direction, of the most outer circumference partition, which is positioned at the most outer circumference side in the diameter direction, and the most inner circumference partition, which is positioned at the most inner circumference side in the diameter direction, are longer than lengths, in the axis direction, of a plurality of middle partitions, which are positioned between the most outer circumference partition and the most inner circumference partition.

Abstract: A resistance switching device having a high resistance variation ratio, an excellent response characteristic, an excellent resistance memory characteristic (retention characteristics) and an excellent repeat resistance. The resistance switching device comprises an n-type oxide semiconductor and first and second electrodes which are disposed so as to interpose at least a part of the n-type oxide semiconductor therebetween wherein a Schottky junction which provides resistance variation/memory characteristics by the application of voltage having different polarities between the first and second electrodes is formed at an interface between the n-type oxide semiconductor and the first electrode; and the first electrode is positioned such that it is in contact with the n-type oxide semiconductor, and has a lower layer which is formed from Au oxide or a Pt oxide or Au or Pt containing oxygen having the thickness of 1-50 nm.

Abstract: A cooling structure for cooling a stator core of a rotating electrical machine includes: a stator core (1b) arranged along an outer periphery of a rotor fixed to a rotary shaft (AX) of a rotating electrical machine; a stator frame (2) extending along an outer peripheral surface of the stator core (1b), the stator frame being configured to fix and support the stator core from the outer peripheral surface side thereof; and a motor case (7) having small-diameter end portions on both sides in an axial direction of the rotary shaft (AX), the small-diameter end portions being welded with airtightness onto an outer peripheral surface of the stator frame so that the motor case forms a space, which is the coolant flow path (CC), together with the outer peripheral surface of the stator frame.

Abstract: In the rotary electric machine according to the present invention, a first O-ring 13a is mounted between a pair of position regulating members 12 that are press-fitted onto and held in a vicinity of a second axial end of an outer circumferential surface of a stator core housing portion 10a so as to be spaced apart in an axial direction, and is pressed and held between the stator core housing portion 10a and a cylindrical portion 16, and a second O-ring 13b is mounted into an O-ring housing groove 11 that is recessed into an outer circumferential surface of a frame mounting portion 10b, and is pressed and held between the frame mounting portion 10b and the cylindrical portion 16, such that a coolant channel 22 is formed between the frame 10 and the cylindrical portion 16.

Abstract: The objective is to prevent the flange of a ring member for holding the stator core from enlarging the diameter of a rotating electric machine and to eliminate a screwing space and a pedestal portion in the housing case so as to suppress the weight of the rotating electric machine from increasing; one end of the ring member for holding the stator core protrudes from the outer circumference of the stator core toward the rotation axle and the ring member is fixed to the cover or the housing case at the protruding portion.

Abstract: In a carbon black (CB)/PTFE composite porous sheet that can be used as a gas diffusion layer in an electrochemical device in applications involving electro chemical reaction such as a polymer electrolyte fuel cell, electrolysis, gas sensor and the like, wrinkle or breakage may be produced due to its flexibility. A method is provided which makes it possible to easily handle this sheet that is difficult to handle, without giving rise to wrinkle or breakage. The present invention relates to a method for laminating the composite sheet on MEA, comprising the steps of: providing a membrane electrode assembly (MEA); providing a composite sheet comprising functional powder and polytetrafluoroethylene (PTFE); providing a release film; superimposing the composite sheet on the release film and pressing them at normal temperature; superimposing the composite sheet having the release film pressed at normal temperature thereto on MEA and hot-pressing them; and separating the release film from the composite sheet.

Abstract: The rotary electric machine includes: a stator that includes: a stator core; and a stator coil; a ring member that accommodates the stator so as to hold the stator core in an internally fitted state; a housing case formed into a floored cylindrical shape with an opening at a first end portion, and that accommodates the ring member and the stator; and a cover mounted onto the first end portion of the housing case so as to cover the opening of the housing case, wherein a first end portion of each of the ring member and the housing case is fixed by fastening to the cover such that a fastening direction of each is oriented in an axial direction, and a second end portion of the ring member is fitted into and held by the housing case by means of an interfitting member.