Abstract: Disclosed is a compact and integrated fan, pump, and heat exchanger system where air-cooling is performed via the fan, liquid cooling is performed via a pump, and heat exchange fins in thermal contact with a fluid channel act as a heat exchanger. Heated fluid is carried inside the fluid channel, where heat therein is conducted to the fins. The air flows around the outside surfaces of the fins so that the heat transfers from the heated fluid into the air stream.

Abstract: A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.

Abstract: A rolling bearing for an inverter-driven motor has the thickness of an oil film in a steady operation condition stably maintained in a specific range, by which the withstand voltage can be controlled, and the discharge due to the shaft voltage of the inverter-driven motor is prevented and electrolytic corrosion can be suppressed. The rolling bearing for an inverter-driven motor has an inner ring, an outer ring, a rolling element, and grease, wherein a root mean square roughness of a raceway surface of at least one of the inner ring and the outer ring is 4 to 16 nm, and an oil film parameter ? in steady operation is at least 17.5.

Abstract: A DC-DC converter (1) is provided having a resonant half-bridge circuit (2) and a transformer (TX1) that has a primary winding (P1) and a secondary winding (S1, S2) on a transformer core (4). The voltage converter (1) has a secondary circuit (3) with which the secondary winding (S1, S2) is associated and a switch (Q3, Q4) that is connected in series to the secondary winding (S1, S2), and a smoothing capacitor (C0, C01). The switch (Q3, Q4) is operated as a synchronous rectifier.

Abstract: A spread illuminating apparatus includes: a light guide plate including a plurality of protrusions disposed along a side surface thereof such that a plurality of interspaces are formed with each interspace being located between two adjacent protrusions; and a plurality of LEDs which include first row LEDs and second row LEDs disposed in two rows respectively at the interspaces and the protrusions. The distal portion of the protrusion has, at its top end surface, a width which is larger than the width of an opening area of the recess of a lamp house and also smaller than the overall width of the lamp house. The first and second row LEDs adjacent to each other are disposed such that respective lamp houses of two adjacent LEDs partly overlap with each other when viewed from the light emission direction.

Abstract: A PM stepping motor includes: a stator assembly composed of two stator units which are axially coupled to each other with a molding resin material, and each of which includes: inner and outer yokes each having a plurality of pole teeth; a bobbin including inner and outer flanges; and a coil wound around the bobbin, thus providing two such inner yokes, outer yokes, bobbins and coils in total; a rotor assembly which includes a shaft and a magnet, and which is rotatably disposed in the hollow of the stator assembly; and two bearings to rotatably support the shaft of the rotor assembly, wherein the two bobbins are formed of the molding resin material to be consolidated with the two inner yokes, and wherein a plurality of protrusions are formed of the molding resin material to extend integrally from the outer flange of each of the two bobbins.

Abstract: An illuminator includes a light source unit having an emitting surface for emitting light, and a light distribution control member having a prism surface including a plurality of prisms that have inclined surfaces and are arranged in a plane for two-dimensionally controlling light distribution of light emitted from the light source unit, wherein the prism surface has flat parts. With the light distribution control member, in the light distribution properties of the illumination light of the illuminator, the luminous intensity angular distribution is properly adjusted to have uniform illuminance distributions.

Abstract: The invention provides a grease composition having (A) a lithium soap thickener, (B) as a base oil an ester type synthetic oil obtainable from an esterification reaction of trimethylolpropane with a fatty acid, and (C) (c-1) a 1-naphthylamine type antioxidant and (c-2) a diphenylamine type antioxidant, wherein the contents of (c-1) and (c-2) are 1.0 to 10 mass% in total, based on the total mass of the composition, and the ratio by mass of (c-1) to (c-2) is in the range from 30:70 to 70:30.

Abstract: A spread illuminating apparatus includes a point-like light source, and a light guiding plate with a light incident face at which the point-like light source direct and an emission surface that exits spread illuminated light emitted from the point-like source and then introduced through the light incident face. A pair of inclined surfaces is provided between the adjacent point-like light sources arranged at the light incident face, the inclined surfaces being configured to incline and narrow as moving toward a front of the light guiding plate in a light emitted direction.

Abstract: A rolling bearing is provided. The rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements disposed in a space between the inner ring and the outer ring, and a grease composition enclosed in the space. The grease composition including (A) a lithium soap thickener, (B) a base oil which is an ester synthetic oil obtained by an esterification reaction of trimethylolpropane with a fatty acid; and (C) (c-1) a 1-naphthylamine antioxidant and (c-2) a diphenylamine antioxidant, a total amount of (c-1) and (c-2) ranging from 1.0 to 10 mass % based on an entire amount of the grease composition, and a blending ratio of (c-1) and (c-2) ranging from 30:70 to 70:30 in terms of mass ratio.

Abstract: A pivot assembly bearing capable to decrease the pressing force when it is pressed into a mounting hole of a swing arm and to prevent the formation of particles on the outer circumferential surface of a sleeve of pivot assembly bearing is provided. The pivot assembly bearing comprises a shaft, and a sleeve 13 rotatably supported around the shaft, a plurality of grooves extending along a circumferential direction are successively formed in an axial direction on an outer circumferential surface of the sleeve 13, and the surface roughness of the outer circumferential surface of the sleeve 13 is 0.5 to 8 ?m in terms of center line average roughness (Ra) and 5 to 30 ?m in terms of maximum height (Rmax).

Abstract: A VR resolver with a shaft angle multiplier of 3× has a rotor core 104 that is provided with magnetic poles 104a and 104b, which project in a radial direction, and a magnetic pole 104c, which does not project in a radial direction. The VR resolver also has a stator core 101 provided with salient poles 102c and 102e that are wound with a cosine wave detection wire and that are connected. A zero point detecting terminal is led from the cosine wave detection wire between the cosine winding wound portions of the salient poles 102c and 102e. The zero point detecting terminal provides a voltage waveform. By setting a threshold value for the voltage waveform, an absolute angle of the rotor core 104 is measured.

Abstract: A radial position sensor includes a rotating element configured to rotate about an axis of rotation, which subject to displacement. The displacement from a first position to a second position can be represented by polar coordinates, e.g., (?, ?), where ? is a distance and ? is an angle. The sensor also includes a non-rotating emitting element configured to provide a plurality of electromagnetic fields and a non-rotating receiving element configured to receive the plurality of electromagnetic fields. The plurality of electromagnetic fields are electromagnetically coupled to the non-rotating receiving element through the rotating element. The electromagnetic coupling varies in dependence on the radial position of the axis of rotation of the rotating element. The non-rotating receiving element produces an output signal in response to the amount of coupling of the plurality of electromagnetic fields, and so the output signal is an indication of the radial position of the axis of rotation.

Abstract: A fluid dynamic bearing includes an auxiliary bearing portion, a first radial bearing portion and a second radial bearing portion arranged along an axial direction of the fluid dynamic bearing, wherein the auxiliary groove formed in the auxiliary bearing portion is shallower in depth than the radial dynamic pressure groove formed in the first radial bearing portion, and wherein a gap size in the auxiliary bearing portion is set to be equal to or larger than a gap size in the radial bearing portions.

Abstract: A coolant application device includes a nozzle which spouts coolant and a motor which adjusts the rotation angle of the nozzle. The coolant application device also includes a housing, a hollow shaft rotatively and fluid-tightly inserted into the housing, a coolant passage formed in the hollow shaft, a port arranged at a lateral wall of the hollow shaft and communicating with the coolant passage, and an inlet passage arranged in the housing and communicating with the coolant passage through the port. The nozzle is connected to the hollow shaft and communicates with the coolant passage. The hollow shaft is coaxially arranged and directly connected to an output shaft of the motor.

Abstract: A light emitting device comprises: a light guiding plate including two facing principal surfaces and circumferential end surfaces connecting the principal surfaces; and a point-like light source facing at least one surface of the circumferential end surfaces of the light guiding plate. One surface of the circumferential end surfaces except the surface where the light source is arranged is a light emitting surface, the thickness of the light guiding plate facing the light source is smaller than the thickness of a portion constituting the light emitting surface and is smaller than the thickness of a light emitting surface of the light source, a diffusing unit is formed on at least one of the principal surfaces; and a reflection member covering peripheries of the light source and the light guiding plate except portions constituting the light emitting surfaces of the light source and the light guiding plate is provided.

Abstract: An angle detecting device has a combined structure of plural resolvers, but is simple and is easily produced, and has redundancy reducing the risk of failure. The angle detecting device has two resolvers which are combined in the axial direction and has a stator core 100. The stator core 100 is formed by laminating a first stator core 103 on a second stator core 104. The first stator core 103 is provided with plural salient poles 101 which extend to a center of an axis. The second stator core 104 is provided with plural salient poles 102 which extend to the center of the axis. The salient poles 101 and 102 differ in position when viewed from the axial direction, and the salient poles 102 are positioned between the adjacent salient poles 101 when viewed from the axial direction.

Abstract: A sidelight type spread illuminating apparatus includes a light guiding plate; a plurality of circuit boards arranged so as to face a side end face of the light guiding plate; a light source mounted on the circuit boards; and a connector that electrically connects the circuit boards adjacent to each other. The connector includes a socket and a plug that are removable therebetween. The socket and the plug are configured to be removable in a direction parallel to each mounting surface of the light sources of the circuit boards in a state that either the socket or the plug is fixed to ends of the circuit boards adjacent to each other.

Abstract: A stepping motor includes a rotor assembly and a stator assembly including two stator units axially coupled to each other. The two stator units each include a pair of yokes which each include a base portion and a plurality of pole teeth extending from the base portion and which are disposed such that each of the pole teeth of one yoke and each of the pole teeth of the other yoke are arranged alternately in the circumferential direction. The pole teeth are shaped symmetric and each include a pair of slant sides inclined so as to become closer to each other with an increase of distance from the base portion, and the slant sides of adjacent pole teeth are located close to each other wherein a magnetic pole gap between the adjacent pole teeth pole teeth is about 0.2 times as large as the thickness of the pole teeth.

Abstract: A side-light type spread illuminating apparatus includes a light guiding plate; a light source arranged along a light entering face of the light guiding plate; a double-sided prism sheet arranged at a light emitted face side of the light guiding plate; and an optical member arranged at a back face side facing the light emitted face of the light guiding plate. The optical member includes a light absorption member allowing prevention of reflection of light that has been introduced into the optical member.