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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.:

US 10927734 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Mar. 05, 2019

Turboprop engine assembly with combined engine and cooling exhaust

Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Andre Julien, Ste-Julie, CA;

Serge Dussault, Ste-Julie, CA;

Jean Thomassin, Ste-Julie, CA;

Assignee:

PRATT & WHITNEY CANADA CORP., Longueuil, CA;

Attorney:

Norton Rose Fulbright Canada LLP

Primary Examiner:

Devon C Kramer

Assistant Examiner:

Kelsey L Stanek

Int. Cl.
CPC ...
F01N 3/05 (2006.01); F02K 1/38 (2006.01); F02C 5/00 (2006.01); F02C 6/20 (2006.01); F02C 7/18 (2006.01); B64D 27/02 (2006.01); B64D 27/08 (2006.01); B64D 33/10 (2006.01); B64D 27/10 (2006.01); B64D 33/04 (2006.01); F01N 13/08 (2010.01); F02B 53/14 (2006.01); F02B 61/04 (2006.01); F02B 53/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/055 (2013.01); B64D 27/02 (2013.01); B64D 27/08 (2013.01); B64D 27/10 (2013.01); B64D 33/04 (2013.01); B64D 33/10 (2013.01); F01N 13/082 (2013.01); F02B 53/14 (2013.01); F02B 61/04 (2013.01); F02C 5/00 (2013.01); F02C 6/206 (2013.01); F02C 7/18 (2013.01); F02K 1/386 (2013.01); F01N 2260/022 (2013.01); F01N 2270/02 (2013.01); F02B 2053/005 (2013.01); F05D 2260/213 (2013.01); Y02T 50/60 (2013.01);
Abstract

A turboprop engine assembly for an aircraft, including an internal combustion engine having a liquid coolant system, an air duct in fluid communication with an environment of the aircraft, a heat exchanger received within the air duct having coolant passages in fluid communication with the liquid coolant system and air passages air passages in fluid communication with the air duct, and an exhaust duct in fluid communication with an exhaust of the internal combustion engine. The exhaust duct has an outlet positioned within the air duct downstream of the heat exchanger and upstream of an outlet of the air duct, the outlet of the exhaust duct spaced inwardly from a peripheral wall of the air duct. In use, a flow of cooling air surrounds a flow of exhaust gases. A method of discharging air and exhaust gases in an turboprop engine assembly having an internal combustion engine is also discussed.

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