US 7,320,440 B2
Low cost pressure atomizer
Lev Alexander Prociw, Elmira (Canada); and Joseph Horace Brand, Mississauga (Canada)
Assigned to Pratt & Whitney Canada Corp., Longueuil, Quebec (Canada)
Filed on Feb. 07, 2005, as Appl. No. 11/50,685.
Prior Publication US 2006/0175428 A1, Aug. 10, 2006
Int. Cl. B05B 1/34 (2006.01); B05B 7/10 (2006.01)
U.S. Cl. 239—491  [239/468; 239/451; 239/402; 239/405; 239/492] 20 Claims
OG exemplary drawing
 
1. A fuel spray device comprising a body having a generally cylindrical central bore having a closed end and an open end thereof; a cap member mounted to the body and closing the open end of the bore to provide a swirl chamber within the body; fluid passages defined between the body and the cap member and positioned to introduce pressurized fuel only at the open end of the bore generally tangentially into the swirl chamber to axially travel the chamber; and an orifice extending through the cap member and communicating with the swirl chamber, the orifice being positioned generally coaxially with the swirl chamber to receive an exit fuel flow from the chamber.