US Patent Issued to Pratt & Whitney Canada on June 23 for "Combustor scroll de-swirler" (Canadian Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,944, issued on June 23, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Combustor scroll de-swirler" was invented by Paul Weaver (Chateauguay, Canada), Guillaume Landry-Drolet (Boucherville, Canada) and Michel Desjardins (Saint-Hubert, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inlet scroll for a combustor includes an inlet, an annular outlet, a volute duct, and a transition. The volute extends from the inlet to circumscribe an axis to form a monotonically decreasing cross-sectional flow area from the inlet. The transition fluidly connects a radially inner boundary of the volute duct to the annular outlet. The transi...