摘要:
A fuel injection valve with high freedom to optimize the direction of fuel spray, the shape of spray, the length of penetration, the existence/absence of lead spray and the like, in correspondence with each type of internal combustion engine is provided. A swirling force about a central axis of an injection orifice is supplied by a swirler to fuel injected from the injection orifice. A central axis E of the injection orifice is slanted at a predetermined deflection angle to a central axis of a valve body. Further, a step portion is formed in an end surface of the injection orifice.
摘要:
In an optical connector ferrule comprising an insertion opening through which one end of a coated optical fiber with the coating removed is inserted. A guide groove is provided for guiding the bare fiber of the optical fiber. A fiber hole is provided for inserting therein the bare fibers guided by the guide groove. An injection port is provided for injecting therein adhesive for securing the coated optical fiber to the ferrule. Guide surfaces are provided for guiding the bare fiber to the guide grooves at sides of the guide groove. In the similar optical connector ferrule, there is provided an enlarged portion extending forwardly from a leading edge of the injection port in a fiber inserting direction and reaching a filling space into which the adhesive is filled. Further, a ceiling surface of the enlarged portion is inclined downwardly forwardly from the injection port.
摘要:
A pneumatic radial tire has a tread profile comprising a curved crown part having a radius of curvature R1, a pair of curbed middle parts having a radius of curvature R2 and a pair of curved shoulder parts having a radius of curvature R3 which extend continuously without forming any inflection point, wherein the radius R1 is in the range of from 2.0 to 3.5 times the tread width TW and is less than the radius R2 and more than the radius R3, and the camber quantity T1 which is the radial distance of the tread profile at the tread edges from the tread profile at the tire equator is 0.038 to 0.050 times the tread width TW.
摘要:
A head actuator for a disc drive and storage system having a plurality of discs and a plurality of read/write heads positioned on upper and lower surfaces of the discs. The head actuator includes a plurality of load springs. Each load spring has a plurality of through holes located at its inner end. A head is mounted to the outer end of each load spring for positioning the head on the upper or lower surface of a disc. The head actuator further includes an integrally formed head arm assembly. The head arm assembly has a plurality of parallel head arms integrally formed at their inner ends to a main head arm body member and extended in parallel therefrom such that they can be positioned between corresponding discs of the disc drive and storage system. Each head arm is formed with a plurality of through holes in its outer end for alignment with a plurality of corresponding through holes formed in each head load spring at its inner end. The load springs are connected to opposite sides of the head arms using the aligned through holes of the load springs and head arms. The head load springs are sequentially connected to the head arms in an assembly method using a plurality of screws for directly connecting the outer ends of the head arms to the inner ends of the load springs via two series of through holes of the head arms and the load springs.