Ryoji OKABE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A magnetic geared rotary electric machine includes: a stator which includes a stator core formed in an annular shape centered on an axis, a coil installed inside a slot of the stator core, and a plurality of stator magnets installed inside the stator core at intervals in a circumferential direction about the axis; a first rotor which includes a plurality of pole pieces provided inside the stator at intervals in the circumferential direction of the axis; and a second rotor which includes a rotor core provided inside the first rotor and a plurality of rotor magnets provided in the rotor core at intervals in the circumferential direction. The stator further includes an anti-vibration member that is made of fiber-reinforced plastic and is installed on an inner surface of the stator core.
Abstract: A magnetic pole piece device for a magnetic gear is provided with: an outer circumferential cover member and an inner circumferential cover member coaxially disposed on an outer side and an inner side in a radial direction, respectively; a magnetic pole piece holder defined by wall members between the outer circumferential cover member and the inner circumferential cover member; and a magnetic pole piece held by the magnetic pole piece holder. The inner ring member, the outer ring member, and the wall members are integrally configured.
Abstract: A composite material blade molding method is for molding a composite material blade by curing a prepreg. The composite material blade has a back-side blade member and a belly-side blade member which are superposed and joined. The composite material blade molding method includes: a lamination step for forming a back-side laminate in a back-side molding die and forming a belly-side laminate in a belly-side molding die; an inner surface cowl plate disposition step for disposing an inner surface cowl plate for maintaining an inner space formed by the back-side laminate and the belly-side laminate; a die mating step for die-mating the back-side molding die and the belly-side molding die and disposing a foaming agent in the inner space maintained by the inner surface cowl plate; and a curing step for heating and expanding the foaming agent and heat-curing the back-side laminate and the belly-side laminate.
Abstract: This composite material blade, which is formed using a composite material including reinforcing fibers and resin, and which has a positive pressure surface and a negative pressure surface, is provided with a ventral part, being the part on the positive pressure surface side in a blade thickness direction, which is the direction joining the positive pressure surface and the negative pressure surface, a dorsal part, being the part on the negative pressure surface side in the blade thickness direction, and a metal shield portion which is provided on the leading edge side, being the upstream side in a flow direction in which a fluid flows, wherein: the metal shield portion includes a main body portion provided on the leading edge side, and an embedded portion which is provided on the trailing edge side, being the downstream side in the flow direction, of the main body portion, and which is provided between the ventral part and the dorsal part; and the plate thickness of the metal shield portion in the blade thick
Abstract: This composite-material blade formed by using a fiber-reinforced resin containing a resin and reinforcing fibers is provided with: a base material part provided on the inner surface of the composite-material blade; and a first cover part for covering the outer surface of the base material part. The base material part is formed by using a carbon fiber-reinforced resin containing a first resin and carbon fibers. The first cover part is formed from an elastic polymer fiber-reinforced resin containing a second resin and elastic polymer fibers, and has more resistance to impact than the base material part.
Abstract: An outer diameter side magnet field pole piece assembly for a magnetic gear which is disposed on an outer circumferential side of a plurality of magnetic pole pieces disposed on an outer circumferential side of the outer diameter side magnet field pole piece assembly along a circumferential direction, includes: a plurality of magnetic pole pairs disposed on the outer circumferential side of the plurality of magnetic pole pieces along the circumferential direction; and a support member for supporting the plurality of magnetic pole pairs from the outer circumferential side. A space along an axial direction is formed in at least a part between an outer circumferential surface of each of the plurality of magnetic pole pairs and an opposite surface of an inner circumferential surface of the support member opposite to the outer circumferential surface of each of the plurality of magnetic pole pairs.
Abstract: A magnetic pole piece device, which is disposed between an inner diameter side magnet field and an outer diameter side magnet field of a magnetic gear, includes a plurality of magnetic pole pieces disposed at intervals in a circumferential direction of the magnetic gear. Each of the plurality of magnetic pole pieces includes a plurality of plate-shaped electrical steel sheets having a longitudinal direction. The plurality of electrical steel sheets are laminated along the circumferential direction, with the longitudinal direction being along an axial direction of the magnetic gear.
Abstract: A magnetic pole piece device disposed between an inner diameter side magnet field and an outer diameter side magnet field of a magnetic gear, includes: an outer circumferential cover member disposed opposite to the outer diameter side magnet field and having a cylindrical shape; an inner circumferential cover member disposed opposite to the inner diameter side magnet field and having a cylindrical shape; and a plurality of magnetic pole pieces disposed at intervals in a circumferential direction between the outer circumferential cover member and the inner circumferential cover member. The outer circumferential cover member includes a plurality of outer circumferential side facing portions facing outer circumferential surfaces of the plurality of magnetic pole pieces, and a plurality of outer circumferential side connecting portions for connecting two adjacent outer circumferential side facing portions of the plurality of outer circumferential side facing portions.
Abstract: A fuel tank dam comprises a first section, a second section, a third section, and a flange section. The first section can be fixed to a first structural component, and the second section can be fixed to a second structural component. The third section has a bellows comprising a plurality of folded sections and is disposed between the first section and the second section. The flange section extends along an outer plate at least from an edge section of the third section and can be fixed to the outer plate.
June 28, 2018
Date of Patent:
September 13, 2022
MITSUBISHI HEAVY INDUSTRIES, LTD.
Eizaburo Yamaguchi, Tadasuke Kurita, Hajime Tada, Yoko Taguchi, Kana Sakon, Akihisa Okuda, Ryoji Okabe
Abstract: A composite blade made of prepreg obtained by impregnating reinforcement fibers with resin and curing the resin-impregnated reinforcement fibers, the composite blade including: a blade root provided on a base end and fitted into a blade groove; an airfoil provided extending from the blade root toward a tip end; and a metal patch provided between the blade groove and the blade root and placed on the blade root. The metal patch includes a plurality of projections protruding toward the blade root.
Abstract: A composite blade formed by laying up composite layers containing reinforcing fiber and resin, the composite blade comprising: a blade root mounted in a blade groove; an airfoil extending from the blade root to a front end side; and a metal patch mounted between the blade groove and the blade root, and bonded to the blade root.
Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin. The composite layers are laid up in a blade thickness direction that is a direction connecting a suction side and a pressure side of the composite blade. The composite blade includes a thick part that has a surface layer area from a surface of the thick part to a predetermined depth in the blade thickness direction and a deep layer area at a depth larger than the predetermined depth from the surface in the blade thickness direction. A median value in a predetermined range of thicknesses of each composite layer in the surface layer area is smaller than a median value in a predetermined range of thicknesses of each composite layer in the deep layer area.
Abstract: A compressor (100) comprises a compressor body (10), a pipe (20) connected to the compressor body (10), and an acoustic cover disposed so as to surround the compressor body (10). The acoustic cover (30) has an insertion hole (31) through which the pipe (20) is inserted while being in close contact with the pipe (20), and an inner surface (30A) of the acoustic cover has a shape that traces an outer surface (10A) of the compressor body (10). Due to this configuration, it is possible to reduce the size and the weight of the acoustic cover (30), and by using the acoustic cover (30) with a simpler structure, it is possible to reduce the noise of the compressor (100) of this automobile air conditioning device.
February 28, 2020
June 2, 2022
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
Abstract: A composite blade includes an airfoil; and a blade root including a straight section from a blade end part being a connection location with the airfoil to an inclination start part between the blade end part and a base end, and a bearing section from the inclination start part to the base end. A laminate of composite layers with reinforced fibers impregnated with resin is provided across the airfoil and the blade root. A metal body is provided on the blade root. The laminate extends along the longitudinal direction in the airfoil and in the straight section, and extends to be inclined away from a center axis in the bearing section. The metal body is provided on both surfaces of the laminate in the blade root, extends along the longitudinal direction in the straight section, and extends to be inclined away from the center axis in the bearing section.
Abstract: Provided is a method of shaping a composite blade made of a composite material by curing prepreg in which reinforcing fibers are impregnated with resin. A foaming agent disposed in an internal space of the composite blade contains a plurality of foaming bodies and foaming agent resin. The foaming bodies foam by being heated. The foaming agent resin cures by being heated. The foaming bodies include low-temperature side foaming bodies and high-temperature side foaming bodies. The low-temperature side foaming bodies foam in a low temperature range during a curing step. The high-temperature side foaming bodies foam in a high temperature range corresponding to temperatures higher than the low temperature range during the curing step.
Abstract: The present invention prevents internal cracks occurring when an impeller molded using a fiber reinforced resin is manufactured by injection molding. This method for manufacturing an impeller is provided with: an injection step of filling a cavity with a molten resin containing reinforced fibers, from a gate side into which the molten resin flows, toward an opposite-gate side opposite to the gate side; and a dwell step of applying required pressure to the filled molten resin. In the injection step and the dwell step, directional cooling is performed with a temperature gradient such that the temperature becomes lower from the gate side toward the opposite-gate side. According to this method for manufacturing the impeller, the opposite-gate side shrinks with a decrease in the temperature of the molten resin since the temperature of the opposite-gate side is lower.
Abstract: A front end body structure (3) has a front wall portion (4) which forms a front surface (4b) in a front-rear direction (Da) and has edge portions which form an opening portion (4a) opened; and a ceiling wall portion (5) which is continuous with the front wall portion (4) and forms a ceiling surface (5a) facing an upper side. In t front wall portion (4), side edge portions (41, 42) on both sides in the width direction (Dw) and an upper edge portion (40) on the upper side among edge portions surrounding the opening portion (4a) have a multi-axial fiber-reinforced plastic material in which at least two directions along the outer surface are set as a fiber direction. At least a partial region of the ceiling wall part (5) including a central portion in the width direction (Dw) has a core material sandwiched between the multi-axial fiber-reinforced plastic materials.
Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin, and has a blade root and an airfoil extending from the blade root in a longitudinal direction. The composite blade includes a first laminate of the composite layers extending along the longitudinal direction in the airfoil and extending along a first inclination direction inclined toward a direction intersecting the longitudinal direction in the blade root; a second laminate of the composite layers extending along the longitudinal direction and contacting the first laminate in the airfoil, the second laminate extending along a second inclination direction inclined toward a direction opposite to the first inclination direction in the blade root and being separated from the first laminate; and a third laminate of the composite layers provided between the first and second laminates in the blade root.
Abstract: This molding method involves: a first step in which a perforation pin (2) is made to protrude into a cavity (13) in a mold (1); a second step in which a molten resin (16) is injected to fill the cavity (13) so as to envelop the protruding part of the perforation pin (2); a third step in which, in a state in which the resin (16) is in an uncured state, the perforation pin (2) is made to protrude further; and a fourth step in which the resin (16) is cured to obtain a molded resin article.
Abstract: In the present invention, it is possible to reduce the occurrence of a local deformation in a plate material during solidification and shrinkage of an injection molding material. The composite material injection molding method includes an injection step of injecting an injection molding material containing reinforcing fibers onto one surface of a plate material; and a molding step of solidifying the injection molding material to mold a frame part so as to surround the outer periphery of the plate material and to mold a rib so as to define an inner peripheral-side space on the inner peripheral side of the frame part. In the injection step, the injection molding material is injected so that a weld part at which the injection molding material converges is formed in a region not overlapping the plate material of the frame part.