Method of forming an injector valve nut seal

Details Method of forming an injector valve nut seal Method of forming an injector valve nut seal

1976-05-21

1978-04-04

Larson, Lowell A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

277170, 2853323, 239584, B23P 1500

Patent

active

040818900

ABSTRACT:
A method of forming an injector valve nut seal between the spray tip body and the sleeve type valve nut of, for example, a unit fuel injector, the method including the steps of fabricating an annular ring of a predetermined area in cross-section and of a suitable deformable material, positioning the seal ring to encircle the straight cylindrical portion on the lower end of the spray tip body prior to inserting this lower end of the spray tip body through the open lower end of the valve nut, securing the valve nut onto the threaded end of the body of the injector whereby as this occurs, the ring seal will be caused to move up to and be shaped to conform around the intermediate conical portion of the spray tip body and conform to the conical inner peripheral surface at the lower end of the valve nut so that the annular ring seal thus formed in place is in press fit engagement with both the outer peripheral surface of the intermediate conical portion of the spray tip body and the conical inner peripheral surface of the valve nut.

REFERENCES:
patent: RE19184 (1934-05-01), Junkers
patent: 1930003 (1933-10-01), Erny
patent: 2003813 (1935-06-01), Taylor
patent: 2090232 (1937-08-01), Ritz
patent: 2250355 (1941-07-01), Bruck
patent: 2459286 (1949-01-01), Rabezzana et al.
patent: 2632431 (1953-03-01), Suter
patent: 3166345 (1965-01-01), Pinkard
patent: 3263025 (1966-07-01), Wheeler
patent: 3275348 (1966-09-01), Scott

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