摘要:
A resin pulley includes: an outer cylindrical portion having an outer circumferential surface on which a belt is to be wound; an inner cylindrical portion which is disposed radially inwards of and concentrically with the outer cylindrical portion; and a plurality of ribs connecting an inner circumferential surface of the outer cylindrical portion and an outer circumferential surface of the inner cylindrical portion. The outer cylindrical portion, the inner cylindrical portion and the ribs are formed integrally from a resin material, and the ribs are provided in such a manner as to be inclined towards a circumferential direction relative to a radial imaginary line as viewed in an axial direction.
摘要:
A supercharger includes a housing, and a turbine shaft supported in a center hole in the housing through rolling bearings. Lubricating oil for the rolling bearings exists only within the housing. A cooling water jacket is provided within a body portion of the housing over a region from one axial end portion of the body portion to the other axial end portion thereof.
摘要:
A diameter of each first ball 3 is set larger than a diameter of each second ball 4. Under action of a radial load not more than a first radial load, the first balls 3 are in contact with a raceway groove 18 of an outer ring 1 and a raceway groove 19 of an inner ring 2, while the second balls 4 are in contact with none of the raceway groove 18 of the outer ring 1 and the raceway groove 19 of the inner ring 2. Also, under action of a radial load not less than a second radial load which is larger than the first radial load, both the first balls 3 and the second balls 4 are in contact with both the raceway groove 18 of the outer ring 1 and the raceway groove 19 of the inner ring 2. The first balls 3 and the second balls 4 are positioned in pockets 10, 11 of the cage 7 alternately along a circumferential direction of the cage 7.
摘要:
A helmet 1 with a visor formed by integrally joining the preliminarily injection-molded visor 5 to a cap body 3, wherein an opening end edge 9 formed on the cap body is joined to the outer side of a joining wall 17 formed on the visor 5, and the joining wall 17 is held by the opening end edge 9 and a tongue-shaped part 31 formed on the inside of the cap body 3. The joined faces of the visor 5 and the cap body 3 are joined to each other by fusing, an intruding engagement part intruded in a through hole 22 formed in the joining wall 17 is formed at the opening end edge of the cap body 3, and the joining portion of the visor and the cap body is formed in annular shapes.
摘要:
A supercharger includes a housing and a turbine shaft supported by the center hole within the housing through rolling bearings. A cooling water jacket within the housing is provided within the main body portion of the housing. The rolling bearings are supplied with lubricant by a tank portion formed within the housing for reserving the lubricant and a wick member provided between the tank portion and the center hole. The wick member 36 includes a core portion configured by a fiber portion and gaps. The lubricant is supplied by the capillary action of the gaps. The porosity of the gap is set to be 45.5% or more and less than 80%.
摘要:
A turbocharger includes a turbine wheel having a center hole and a turbine shaft having one end secured on a small-diameter inner circumferential surface of the center hole. A large-diameter inner circumferential surface and a large diameter outer circumferential surface are formed to provide a cylindrical clearance opening toward a bearing housing between the center hole and the outer circumferential surface of the turbine shaft.
摘要:
In a pulley assembly, an annular joint member made of a high polymer material is disposed between an outer ring of a bearing and a light metal pulley. The joint member has a coefficient of thermal expansion larger than that of the pulley. The outer ring has a coefficient of thermal expansion smaller than that of the pulley. The pulley has an annular boss, an annular rim, and a plurality of spokes which have side faces each consisting of a surface parallel to an axial direction of the pulley. Front faces of the spokes are positioned on one identical imaginary surface of revolution, and rear faces of the spokes are also positioned on one identical imaginary surface of revolution.
摘要:
An electrostatic capacitance tilt angle sensor having a size that is reduced without lowering detection capacity. The sensor is provided with a case including a first wall and a second wall facing each other. A common electrode is arranged on the first wall and a differential electrode is arranged on the second wall. A liquid electrostatic capacitance medium is accommodated in the case and contacts the common electrode and the differential electrode. The electrostatic capacitance medium includes an insulative liquid base and fine particles mixed in the base. The fine particles have a dielectric constant that is higher than that of the base.
摘要:
A catalyst for bulk polymerization of a polymerizable unsaturated compound comprises a compound having at least one thiol group and a secondary hydroxyl group and represented by the following formula (I): wherein R1 to R5 are each a hydrogen atom or an alkyl group, and R6 is a hydroxyl group, an alkyl group or the like. Also a process for bulk polymerization of the invention comprises polymerizing a polymerizable unsaturated compound in an inert gas atmosphere substantially in the absence of a solvent using, as a catalyst, a compound having at least one thiol group and a secondary hydroxyl group and represented by the above formula (I). According to the catalyst or the process, bulk polymerization can be carried out in one-component catalyst system in a high yield without suffering a runaway reaction.
摘要:
By providing a printing density controller for changing a printing density in a range from a dropout color to non-dropout color, an electrophotographic printing apparatus can conduct the light and shade adjustment of the printing density in a broad range, and also cope with the dropout color printing.