Abstract: A tire noise reduction device includes a noise absorbing member formed of a porous material, a band member formed of a thermoplastic resin, the band member being formed in an annular shape in a tire circumferential direction for mounting the noise absorbing member on a tire inner surface; a bonding member bent into a concave cross-sectional shape, a band bonding section at a key point where the noise absorbing member, the band member, and the bonding member are bonded by interposing the noise absorbing member between the bonding member and the band member. A band width (WB) (mm) of the band member and length (WY) (mm) of the band bonding section in a band width direction satisfy the following Formula (a) and a yield strength of the band section at the band bonding position in an 80° C. environment is 320 N or greater 0.01<WY/WB<0.75??(a).

Abstract: A stator for an electric rotary machine including a stator core and a coil, wherein the coil has plural slot coils, each slot coil being inserted into the slot, and plural connection coils, each connection coil connecting the slot coils in a position lying further axially outwards than an axial end face of the stator core, and is constituted in such a way that the slot coil and the connection coil are joined at an abutment portion; the slot coil and the connection coil are formed by plate conductors, the plate conductor having a plate surface that is planar and that intersects a thickness direction thereof; and the plate surface of the slot coil is brought into surface contact with the plate surface of the connection coil in the abutment portion.

Abstract: A tire noise reduction device includes a noise absorbing member formed of a porous material, a band member formed of a thermoplastic resin, the band member being an annular shape for mounting the noise absorbing member on a tire inner surface, a bonding member bent into a V-shaped cross section, and a band bonding section at a key point where the noise absorbing member, the band member, and the bonding member are bonded by interposing the noise absorbing member between the bonding member and the band member. The band member has a band width WB satisfying the following formula (a). A band thickness H (mm) of the band bonding section and a thickness h (mm) of the band member have a relationship satisfying the following formula (b). 20 mm?WB?noise absorbing member width (mm)??(a) 0.4?H/h?0.

Abstract: An acoustic insert comprises a sleeve having a first end and a second end. The sleeve comprises segments between the first end and the second end. A first acoustic septum is placed within the sleeve at a first depth. A second acoustic septum placed within the sleeve at a second depth.

Abstract: Systems and methods for reducing vibration in an electric motor using rotor bearing assemblies that are positioned within a bore of the stator to support the motor's shaft and rotor sections so that they can rotate within the stator bore. Each rotor bearing assembly includes an outer bearing and an inner bearing sleeve that rotates within the bearing. The bearing is secured so that its rotation within the stator is inhibited, but it can move axially. Each end of the bearing sleeve has a conically tapered contact surface which contacts and secures the corresponding rotor section and centers the rotor section with respect to the axis of rotation of the bearing. The contact surfaces of the rotor sections may be chamfered at an angle complementary to the tapered contact surface of the bearing sleeve to distribute the contact pressure between them over a greater contact surface area.

Abstract: A configurable door panel cover includes a first face of a first door that is perforated and includes one or more attachment points, which one or more configurable panels may attach to. The configurable door panel cover includes a fastener assembly that includes at least one fastener that attaches to the configurable door panel cover, and a spacing mechanism. The spacing mechanism attaches to the fastener that is attached to the configurable door panel cover and to one of the one or more attachment points on the first face of the first door. The spacing mechanism attaches the first configurable door panel cover at a first orientation that includes a first angle between the configurable door panel cover and the first spacing mechanism. The fastener assembly may be rotated to the configurable door panel cover.

Abstract: A three-phase rotating electrical machine includes a stator including a stator core provided with a plurality of teeth and a plurality of slots, and winding, the three-phase rotating electrical machine including a rotor including a rotor core and a north magnetic pole and a south magnetic pole, the three-phase rotating electrical machine including a fractional slot configuration, the rotor core including a north magnetic pole acting portion, a south magnetic pole acting portion, a magnetic pole boundary dividing the north magnetic pole acting portion and the south magnetic pole acting portion in the circumferential direction, and a magnetic resistance portion, the magnetic resistance portion restricting the magnetic flux from passing through.

Abstract: Earpieces and methods of forming earpieces for radio frequency (RF) mitigation are provided. An earpiece is configured to be inserted in an ear canal. The earpiece includes an insertion element and a sealing section disposed on the insertion element and configured to conform to the ear canal. The sealing section is configured to substantially mitigate radio frequency (RF) transmission and to substantially isolate the ear canal from an ambient environment.

Abstract: Provided acoustic devices include an external housing defining an expansion chamber and a wall extending through and partitioning the expansion chamber into a central chamber and a peripheral chamber adjacent the central chamber, wherein an inlet and outlet communicate with the central chamber, and wherein the wall includes a plurality of apertures formed therethrough to allow air movement to and from the central and expansion chambers, the plurality of apertures sized to provide an average flow resistance ranging from 100 MKS Rayls to 5000 MKS Rayls. The acoustic devices advantageously show significant sound attenuation while streamlining air flow to reduce pressure drop across the expansion chamber.

Abstract: An object of the present invention is to provide an exhaust device capable of preventing a silencer from interfering with a component disposed in front of the silencer by allowing the silencer to slide down even when a load is input from a rear of the vehicle. A first tailpipe 34 is provided with an inclined bracket member 37. The inclined bracket member 37 has a sliding contact surface 37b inclined rearward and downward of a vehicle. A pressing portion 44 inclined rearward and downward of the vehicle is provided in an exhaust finisher bracket member 42 attached to an exhaust finisher 40. The pressing portion 44 contacts the sliding contact surface 37b when the exhaust finisher 40 is displaced forward of the vehicle. Then, the pressing portion 44 transmits the load so as to push down a silencer 32 via the sliding contact surface 37b.

Abstract: Disclosed is a shock absorption mechanism of a steering motor, comprising an upper cover buffering assembly (1), and an oil distributor (2) disposed below the upper cover buffering assembly (1), the oil distributor (2) being fitted with the upper cover buffering assembly (1) to form a sealed axial cavity (4). A cylinder assembly (5) is fixedly arranged below the oil distributor (2). The cylinder assembly (5) comprises a cylinder (51) opened at both ends, and an elastic oil bag (52) arranged in the cylinder (51) and having an opening at the upper end, the upper end of the elastic oil bag (52) being fixedly connected to an inner wall of the cylinder (51), and the upper end of the elastic oil bag (52) being in communication with the axial cavity (40). The cylinder (51) is further provided internally with a piston (53) axially sliding along the cylinder (51), the piston (53) being connected to the lower end of the elastic oil bag (52).

Abstract: Disclosed is a double oil passage structure of a steering motor, comprising an upper cover buffering assembly (1) and an oil distributor (2), which are fitted with each other to form an axial cavity (4), wherein an oil flow passage (23), an oil inlet (22) and a hollow column (21) are provided in the oil distributor (2), the oil flow passage (23) being in communication with the axial cavity (4), and an inner wall of the hollow column (21) being provided with an oil flow port in communication with the oil flow passage (23); a directional control valve (3) including a valve core (31) is provided in the hollow column (21), and a first radial cavity is formed between the hollow column (21) and the directional control valve (3) and partitioned by a pin (7) into oil inlet and outlet cavities (24, 25) of the oil distributor which are respectively in communication with the oil inlet (22) and the axial cavity (4); a directional control valve oil flow passage (33) is provided on an upper part of a side wall of a valve c

Abstract: An acoustical seal system that utilizes a sound absorbing material-based sound seal for the gap or flanking path between a closed door and the nearby surfaces (e.g., the door jam or frame and the floor). When the door is in a closed position, the acoustical seal system may leave a small gap around the door so that the door does not have to make contact with the surrounding structural components. The small gap is an air passage between the two adjacent rooms. The acoustical seal system includes a housing with one or more cavities. The housing is mounted on the sides of the door core or body or on the surrounding components such that the cavities face the small air gap when the door is in the closed position. The cavities are filled with sound-absorbing material, such as an acoustical foam, that is exposed to the air gap.

Abstract: A suppressor assembly for a firearm including a barrel, a bore and a muzzle end. The suppressor assembly may include a gas block mount positioned about the barrel, and outer tube configured to be attached to the gas block mount, and a baffle configured to be attached to the muzzle end of the firearm. The baffle is telescopically received and configured to have a clearance fit with the outer tube. The baffle may also include one or more outer edges configured to scrape debris from the inner surface of the outer tube when the baffle is removed from the outer tube.

Abstract: A generator for converting mechanical energy or hydropower or wind energy into electrical energy is disclosed. The generator includes a first member and a second member in contact with the first member to generate triboelectric charges. The second member rolls against the first member to generate a flow of electrons between two electrodes. Another embodiment of the generator includes two electrodes, and a member in contact with the two electrodes to generate triboelectric charges. The member rolls against the electrodes to generate a flow of electrons between the two electrodes.

Abstract: Caging structures are disclosed for caging or otherwise reducing the mechanical shock pulse experienced by MEMS device beam structures during events that may cause mechanical shock to the MEMS device. The caging structures at least partially surround the beam such that they limit the motion of the beam in a direction perpendicular to the beam's longitudinal axis, thereby reducing stress on the beam during a mechanical shock event. The caging structures may be used in combination with mechanical shock-resistant beams.

Abstract: A panel for attenuating noise includes a porous first skin, a second skin, and a core connected between the porous first skin and the second skin. The core includes a corrugated body and a stringer body. The corrugated body includes a plurality of corrugations configured from at least a plurality of baffles and a plurality of porous septums. Each of the corrugations includes a respective one of the baffles and a respective one of the porous septums. A first of the corrugations forms a first channel that extends laterally between and longitudinally along a first of the baffles and a first of the porous septums. The stringer body includes a plurality of sidewalls arranged longitudinally along the first channel. Each of the sidewalls is disposed within the first channel and configured to fluidly isolate longitudinally adjacent portions of the first channel from one another.

Abstract: A panel is provided for attenuating noise. This panel includes a porous first skin, a second skin and a core, which is connected between the porous first skin and the second skin. The core includes a corrugated body and a plurality of stringer bodies. The corrugated body includes a plurality of corrugations configured from at least a plurality of baffles and a plurality of porous septums. Each of the corrugations includes a respective one of the baffles and a respective one of the porous septums. A first of the corrugations forms a first channel that extends laterally between a first of the baffles and a first of the porous septums. The stringer bodies are spaced longitudinally along the first channel. Each of the stringer bodies includes a first sidewall disposed within the first channel and configured to fluidly isolate longitudinally adjacent portions of the first channel from one another.

Abstract: The present disclosure provides a frictional electricity-generating device and a method for manufacturing the same, an electronic apparatus and a wearable apparatus. The frictional electricity-generating device comprises at least one friction unit, which comprises a first conductive electrode, an organic friction unit and a second conductive electrode. The first conductive electrode and the organic friction unit can generate electricity by contact friction, the first conductive electrode comprises a friction layer with a concave-convex friction surface, and the friction layer comprises a base layer and a metal nanowire.

Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.