Method for modifying a fluid fuel metering jet orifice

Details Method for modifying a fluid fuel metering jet orifice Method for modifying a fluid fuel metering jet orifice

Filed on

1979-09-26

Date issued

1981-11-03

Examiner

Crane, Daniel C.

Patent Class

Metal working

SubClass

Means to assemble or disassemble

SubSubClass

Puller or pusher means, contained force multiplying operator

Other Related Categories

29557, 2940219, 72 68, 72340, B23P 1516, B23P 600

Type

Patent

Status

active

Patent number

042977746

Description

ABSTRACT:
Structure is provided for inwardly collapsing those portions of a needle jet defining at least the outlet end portion of the jet orifice extending therethrough and for providing the resultant smaller jet orifice with spiral grooves in its walls.

REFERENCES:
patent: 680991 (1901-08-01), Crosby
patent: 2205871 (1940-06-01), Young
patent: 3010126 (1961-11-01), Willcox
patent: 3150442 (1964-09-01), Straw et al.
patent: 3167860 (1965-02-01), Welles, Jr. et al.
patent: 3899912 (1975-08-01), Orain

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