Thin-walled valve-closed-orifice spray tip for fuel injection no

Details Thin-walled valve-closed-orifice spray tip for fuel injection no Thin-walled valve-closed-orifice spray tip for fuel injection no

1993-02-26

1995-09-12

Merritt, Karen B.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

23953312, F02M 4700, F02M 6118

Patent

active

054491215

ABSTRACT:
A valve-closed-orifice (VCO) spray tip having an internal tip seat and one or more fuel spray orifices. The thickness of the tip in the wall portion defining the internal tip seat and upstream entrance of each orifice is made less than that of previously known VCO tips. The length to diameter ratio of each orifice is also relatively smaller than that of previously known VCO tips. Advantages of the thinner wall portion include improved fuel injection spray characteristics as well as reduced cost of forming orifices through the tip.

REFERENCES:
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patent: 5092039 (1992-03-01), Gaskell
patent: 5121730 (1992-06-01), Ausman et al.
ASME Paper by K. -J. Wu et al Entitled "Measurements of the Spray Angle of Atomizing Jets From Trans. of the ASME", vol. 150 DTD 12/83.
SAE Paper No. 840275 by Arai, et al DTD 1984 Entitled "Disintegrating Process and Spray Char. of Fuel Jet Injected by a Diesel Nozzle".
SAE Paper No. 830448 by K. S. Varde et al Dated 1983 Entitled "Diesel Fuel Spray Penetration at High Injection Pressures".

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