Abstract: A blade of a hybrid type fan includes: a blade body 21 made of a synthetic resin; and a metallic insert 22 that is insert molded simultaneously with the blade body 21 and mounted to a mounting arm of a spider. At a corner on an outer side of a radial direction and a forward side of a rotary direction of the insert 22, a bulging portion 26 is provided to bulge toward the outer side of the radial direction and the forward side of the rotary direction. A bulging region 27 of the bulging portion 26 that the most prominently bulges toward the outer side of the radial direction is located to be forward in the rotary direction relative to a mounting center C of the insert 22 and the mounting arm along the radial direction.

Abstract: An EGR cooler includes: a casing in which cooling water flows; a plurality of tubes in which exhaust gas flows, the plurality of tubes being housed in the casing; a header plate to which ends of the plurality of tubes are bonded, the header plate being bonded to an end of the casing; an inlet tank into which the exhaust gas is introduced, the inlet tank being bonded to the end of the casing; and a shielding member being provided in the inlet tank to shield a circumferential wall of the inlet tank from the introduced exhaust gas.

Abstract: A turbocharger as a turbo machine includes: a compressor impeller (13) having a projected portion (19) at a center of a rear surface; a drive shaft (15) connected to a bottomed coupling hole (20) provided in the projected portion (19) of the compressor impeller (13) through interference fit only; and a sleeve (30) with a cylindrical portion (33) connected to the outer peripheral portion of the projected portion (19) of the compressor impeller (13) by fitting only. The sleeve (30) is formed of a material whose coefficient of linear expansion is smaller than that of the compressor impeller (13). Accordingly, even when the coupling hole (20) in the projected portion (19) undergoes thermal expansion and the diameter of the coupling hole (20) increases, a connection between the drive shaft (15) and the coupling hole (20) can be prevented from being loosened since the radial increase thereof is suppressed by the cylindrical portion (33). Thus, the state of the connection thereof can be well maintained.

Abstract: A blade of a hybrid type fan includes: a blade body 21 made of a synthetic resin; and a metallic insert 22 that is insert molded simultaneously with the blade body 21 and mounted to a mounting arm of a spider. At a corner on an outer side of a radial direction and a forward side of a rotary direction of the insert 22, a bulging portion 26 is provided to bulge toward the outer side of the radial direction and the forward side of the rotary direction. A bulging region 27 of the bulging portion 26 that the most prominently bulges toward the outer side of the radial direction is located to be forward in the rotary direction relative to a mounting center C of the insert 22 and the mounting arm along the radial direction.

Abstract: A turbocharger as a turbo machine includes: a compressor impeller (13) having a projected portion (19) at a center of a rear surface; a drive shaft (15) connected to a bottomed coupling hole (20) provided in the projected portion (19) of the compressor impeller (13) through interference fit only; and a sleeve (30) with a cylindrical portion (33) connected to the outer peripheral portion of the projected portion (19) of the compressor impeller (13) by fitting only. The sleeve (30) is formed of a material whose coefficient of linear expansion is smaller than that of the compressor impeller (13). Accordingly, even when the coupling hole (20) in the projected portion (19) undergoes thermal expansion and the diameter of the coupling hole (20) increases, a connection between the drive shaft (15) and the coupling hole (20) can be prevented from being loosened since the radial increase thereof is suppressed by the cylindrical portion (33). Thus, the state of the connection thereof can be well maintained.

Abstract: The invention provides a compressor of a turbo machine and its compressor wheel that do not easily undergo breaking even when rotated at a high number of revolutions. The compressor of the turbo machine includes a male screw portion integrally formed on a main body portion of the compressor wheel and a male screw portion disposed at a distal end of a shaft for driving the compressor wheel that are coupled with each other through a sleeve equipped at one of the ends thereof with a female screw portion capable of meshing with the male screw portion of the compressor wheel and at the other end with a female screw portion capable of meshing with the male screw portion of the shaft.

Abstract: A painting mask, which has an edge portion for defining a painting area parting line, is formed in a mask body which has a predetermined dimension enough to cover a work made from plastic, the mask body including a mask body base portion which is composed of a metal plate with a dimension substantially matching a work, and a painting area circumferential edge portion which is molded integrally with the mask body base portion by curing a thermosetting plastic (epoxy resin) prepared like clay and in which an edge portion for defining a parting line for a painting-presumptive area is formed. The mask body base portion does not shrink during the process where the mask body is manufactured, so that a painting mask with a proper dimension can be obtained.

Abstract: A paint mask apparatus in which portions that were difficult to paint conventionally can easily be painted by constructing the apparatus main body so as to be tiltable. A paint mask apparatus main body having a receiving jig for mounting a work on a base and a mask main body which covers the work mounted on the receiving jig is constructed so as to be tiltable around a horizontal axis. Spray painting is then carried out with the paint mask apparatus main body into which the work has been set tilted around the horizontal axis such that the areas to be painted of the work are pointed in a predetermined direction that makes it easy to apply paint. The paint mask apparatus enables paint to easily be applied to portions that were difficult to paint in the past, as well as a plurality of different places.

Abstract: A coating mask device for a lighting device in which a mask body is divided into a plurality of sections so that the mask body can be easily handled. The coating mask device for a lighting device includes a support jig 10, on which a component part 14 of the lighting device can be placed, and a mask body 20 having an opening 22 corresponding to a coat-forming region 15 of the lighting device component part 14. The mask body 20 is divided into a partial mask 21, having the opening 22, and a main mask 23 for covering that region of the component part other than that region covered by the partial mask 21. The partial mask 21 is removable from the main mask 23. The whole of the mask body 20 does not need to be exchanged, and it is only necessary to exchange the partial mask 21 which is compact and lightweight.

Abstract: A paint mask apparatus capable of accommodating different types of parts to be painted by constructing a mask body and a receiving jig so as to both be detachable with respect to the apparatus main body. A paint mask apparatus has a receiving jig for mounting a part to be painted supported by a jig base provided on an outer base, and a mask supporting frame with an integrated mask body of a predetermined shape which covers at least the peripheral edge portion of an area to be painted of a part to be painted attached to the outer base so as to be able to swing up and down such that the mask body can both cover and uncover the receiving jig from above. By constructing the mask body so as to be detachable from the mask supporting frame and constructing the receiving jig so as to be detachable from the jig base and only replacing the mask body and the receiving jig, the paint mask apparatus can be used for painting a different type of part to be painted without replacing the base and the jig base.

Abstract: A coating mask device includes a base 10 on which on a jig bed 30 is mounted. The jig bed 30 supports the support jig 40, which receives a product W to be coated. A mask support frame 20, having a mask body 22 formed integrally therewith, is mounted on the base 10 so as to be pivotally moveable between a closed position in which the mask body 22 covers the support jig 40 and an open position in which the mask body exposes an upper side of the support jig 40. The mask body 22 corresponds in shape to the product to be coated. The mask support frame 20 is detachably mounted on the base 10, and the support jig 40 is detachably mounted on the jig bed 30.

Abstract: Disclosed is a rotary actuator utilizing magnetic screws which are stably rotatable at a great torque with little torque variation. The rotary actuator comprising (a) a closed hollow cylinder, a piston sliding within the cylinder, and a rotary shaft which rotates with the sliding of the piston, has (b) a first magnetic screw member which makes a linear motion in synchronism with the sliding of the piston, and is provided with a first spiral magnetized band, and (c) a rotary shaft rotatably supported in relation to the first magnetic screw member, and having a second magnetic screw provided with a second spiral magnetized band. (d) With the sliding of the piston, the second magnetic screw receives the magnetic force from the first magnetic screw to thereby rotate the rotating shaft.

Abstract: An automotive headlamp which cuts off ultraviolet rays generated from a discharge bulb light source, even in the case where the front lens is broken. A reflector is provided having a bulb insertion hole formed in a rear portion thereof, and a socket portion supporting a discharge lamp bulb is attached to the reflector at the bulb insertion hole. A direct-ray shade for shielding direct rays of light is disposed in front of the lamp. An ultraviolet-shielding layer is formed on a front surface of the reflector.