Method of manufacturing a fuel injector core

Details Method of manufacturing a fuel injector core Method of manufacturing a fuel injector core

1995-03-24

1997-07-22

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

296021, 72 46, 83 22, 2395855, H01F 4102

Patent

active

056493541

ABSTRACT:
A block of material used for making a movable core for a fuel injector is prepared from a bar or coil of material by clamp shearing using a working fluid containing an extreme-pressure additive (such as sulfur, chlorine or phosphorus). The additive reacts with the material to form a protective layer (of e.g. sulfide, chloride or phosphate) on the cut-off surface of the block. The block is cold forged so that its cut-off surface having the protective layer may form a wall defining a fuel passage. The layer prevents the material from being seized with any die or punch used for cold forging.

REFERENCES:
patent: 3967484 (1976-07-01), Takahashi et al.
patent: 5033716 (1991-07-01), Mesenich
patent: 5458158 (1995-10-01), Kawanabe
"Plasticity and Working" (in Japanese Sosei to Kako) vol. 24, No. 271, pp. 830-839 was published in Aug., 1983. see abstract.

Affiliated with

Also associated with

Rating

Method of manufacturing a fuel injector core does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing a fuel injector core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a fuel injector core will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1553482