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:
Nov. 20, 1990
Filed:
Dec. 15, 1987
Applicant:
Inventors:
Robert H Ealba, Grosse Pointe Farms, MI (US);
Robert W Paterson, Simsbury, CT (US);
Walter M Presz, Jr, Wilbraham, MA (US);
Michael J Werle, West Hartford, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ; F01N / ; B01D / ;
U.S. Cl.
CPC ...
422176 ; 422177 ; 422180 ; 422205 ; 422220 ; 422222 ; 55440 ; 55464 ; 55473 ; 55529 ; 55DI / ; 55199 ; 55319 ; 165160 ; 165174 ;
Abstract
A thin, convoluted wall member disposed upstream of the inlet of a diffuser generates large-scale vortices having axes in the downstream direction. The vortices enhance mixing within the diffuser and can also energize the boundary layer, thereby improving diffuser performance and delaying the onset of stall. Greater diffusion angles without stall are possible. The member itself creates low losses.