Fuel injector adapted to remove deposits by sonic shock

Details Fuel injector adapted to remove deposits by sonic shock Fuel injector adapted to remove deposits by sonic shock

2006-08-29

2006-08-29

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

C239S089000, C239S090000, C239S091000, C239S092000, C239S533200, C239S533400, C239S585100, C239S585200, C239S585300, C239S585400, C239S585500, C239S005000, C239S104000

Reexamination Certificate

active

07097114

ABSTRACT:
The present disclosure provides a self-cleaning injector nozzle or other fluid conduit that maintains deposits at a low level by sonic tuning the shock wave generated during fluid flow through that nozzle or conduit. Methods of producing an injector nozzle and a method of cleansing deposits from liquid or gaseous fluids are also disclosed.

REFERENCES:
patent: 3552370 (1971-01-01), Briggs
patent: 4203393 (1980-05-01), Giardini
patent: 5237967 (1993-08-01), Willermet et al.
patent: 5249554 (1993-10-01), Tamor et al.
patent: 5309874 (1994-05-01), Willermet et al.
patent: 6334434 (2002-01-01), Imoehl et al.
Gautam T. Kalghatgi, Deposits in Gasoline Engines—A Literature Review, Paper No. 902105, pp. 639-667, Shell Research Ltd., Thornton Research Centre, Chester, UK.
Allen A. Aradi (Ethyl Corporation); Bill Imoehl (Siemens Automotive Corporation); and Noyes L. Avery, Paul P. Wells, & Richard W. Grosser (Mobil Technology Company), “The Effect of fuel Composition and Engine Operating Parameters on Injector Deposits in High-Pressure Direct Injection Gasoline (DIG) Research Engine,” Society of Automotive Engineers, Inc. (SAE) Paper No. 1999-01-3690, pp. 1-9.

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