Method of assembling fuel injector pump components

Details Method of assembling fuel injector pump components Method of assembling fuel injector pump components

1996-12-10

1998-10-06

Solis, Erick R.

Metal working

Method of mechanical manufacture

Valve or choke making

29517, B21K 124

Patent

active

058159207

ABSTRACT:
Methods of swaging fuel injector pump components are provided. A method of securing an armature plate to a control valve of a solenoid-actuated fuel injector pump comprises: (1) providing a control valve stem extending from the control valve, the stem having a body with a body width, a head with a head width narrower than the body width, and a neck with a neck width narrower than the head width, the neck forming an annular groove between the head and body; (2) providing a central aperture formed in the armature plate having an aperture width between the head and body widths; and (3) forcing the stem into the central aperture in a manner to cause a portion of the armature plate to deform into the groove to secure the armature plate to the stem. Also provided is a method of plugging a fuel flow passage in a fuel injector pump body, comprising: (1) providing a plug; (2) inserting the plug at least partially into the passage; and (3) swaging the plug into the passage in a manner to deform a portion of the pump body around the plug to secure the plug in the passage.

REFERENCES:
patent: 3189672 (1965-06-01), Lyman, Jr.
patent: 3577850 (1971-05-01), Harris, Sr.
patent: 5333836 (1994-08-01), Fukuyo et al.
IBM Technical Disclosure Bulletin No. 9172, vol. 21, No. 11, pp. 4586-4587, Apr. 1979.

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