The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
May. 26, 2010
Robert R. Pelletier, Chardon, OH (US);
Michael K. Teter, Madison, OH (US);
Robert R. Pelletier, Chardon, OH (US);
Michael K. Teter, Madison, OH (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
An airblast fuel nozzle assembly () comprising a sleeve structure having a series of coaxial sleeves forming an inner-air circuit, an outer-air circuit, a main-fuel-feed circuit, and a pilot-fuel-feed circuit. The pilot-fuel-feed circuit includes a channel (), and a discharge region () with exits (). The exits () have a combined cross-sectional area that is substantially less than the cross-sectional area of the channel () upstream of the discharge region (). In this manner, the pilot-fuel-feed circuit itself can provide a relatively large pressure drop across the channel region (), and thereby assist in self atomization during ignition stages of engine operation.