US 7,475,831 B2
Modified high efficiency kinetic spray nozzle
Thomas Hubert Van Steenkiste, Ray, Mich. (US); Taeyoung Han, Bloomfield Hills, Mich. (US); and Bryan A. Gillispie, Warren, Mich. (US)
Assigned to Delphi Technologies, Inc., Troy, Mich. (US)
Filed on Jan. 23, 2004, as Appl. No. 10/763,824.
Prior Publication US 2005/0161532 A1, Jul. 28, 2005
Int. Cl. B05B 1/24 (2006.01)
U.S. Cl. 239—13  [239/8; 239/79; 239/85; 239/135; 239/433; 239/589; 118/308; 427/180] 14 Claims
OG exemplary drawing
 
1. A supersonic kinetic spray nozzle comprising:
a converging region and a diverging region separated by a throat, said diverging region extending from said throat to an exit end; and
at least a portion of said diverging region adjacent said throat having a cross-sectional expansion rate of at least 1.0 millimeters squared per millimeter;
wherein said portion is located within a first one third of a length of said diverging region adjacent to said throat and wherein said cross-sectional expansion rate decreases between said first one third and said exit end of said diverging region.