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:
Dec. 19, 2017
Filed:
Oct. 08, 2013
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/08 (2006.01); B21D 15/12 (2006.01); B21D 53/06 (2006.01); F28D 7/00 (2006.01); F28D 7/08 (2006.01); F28F 1/02 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
F02C 7/08 (2013.01); B21D 15/12 (2013.01); B21D 53/06 (2013.01); F28D 7/0041 (2013.01); F28D 7/082 (2013.01); F28D 21/001 (2013.01); F28F 1/02 (2013.01); F28D 2021/0026 (2013.01); Y10T 29/49357 (2015.01);
Abstract
A method of manufacturing a recuperator segment uses metal tubes deformed into air cells in a waved configuration. The air cells are stacked one to another to form a double skinned recuperator segment providing cold air passages through the respective air cells and hot gas passages through spaces between adjacent air cells.