METHOD FOR CONCENTRICALLY ASSEMBLING A PAIR OF CYLINDRICAL MEMBERS AND METHOD FOR ASSEMBLING A NOZZLE IN A FUEL INJECTOR

• Main Authors: KOSHIZAKA; ATSUSHI, KANAMARU; HISANOBU, YOKOYAMA; MIZUHO, GUNJI; KENICHI
• Format: Patent
• Language: English
• Published: 07.07.1992
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; BURNERS; COMBINED OPERATIONS; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; NOZZLES; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS

An inner cylindrical component is disposed on a bottom portion of an outer cylindrical component with a clearance which is formed between an outer diameter portion of the inner component and an inner diameter portion of the outer component. A guiding pin for positioning is inserted concentrically through the inner component and a tip end portion of the guiding pin engages with the bottom portion of the outer component. An outer peripheral portion of the positioned inner component is locally and vertically pressure-pressed. A portion of the inner component is extended in an outer diameter direction according to the pressure-pressing plastic deformation. The extended member of the inner component is joined together with the inner diameter portion of the outer component. The extended member of the inner component and the outer component are mutually combined together. After the pressing operation the guiding pin is withdrawn.