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:
Mar. 01, 2022
Filed:
Dec. 17, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Serge Dussault, Ste-Julie, CA;
Andre Julien, Ste-Julie, CA;
Michael Lanktree, La Prairie, CA;
Edwin Schulz, St-Bruno, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 29/12 (2006.01); F04C 18/22 (2006.01); F02B 55/14 (2006.01); F01C 1/22 (2006.01); F01C 11/00 (2006.01); F02B 55/02 (2006.01); F04B 39/02 (2006.01); F04B 39/12 (2006.01); F02B 55/08 (2006.01); F02B 53/08 (2006.01); F01C 20/18 (2006.01); F01C 21/08 (2006.01); F01C 21/18 (2006.01); F01C 21/10 (2006.01); F02B 53/00 (2006.01); F01C 21/00 (2006.01);
U.S. Cl.
CPC ...
F02B 55/14 (2013.01); F01C 1/22 (2013.01); F01C 11/002 (2013.01); F01C 11/008 (2013.01); F01C 20/18 (2013.01); F01C 21/0809 (2013.01); F01C 21/104 (2013.01); F01C 21/18 (2013.01); F02B 53/08 (2013.01); F02B 55/02 (2013.01); F02B 55/08 (2013.01); F01C 2021/125 (2013.01); F01C 2021/1606 (2013.01); F02B 2053/005 (2013.01); F04C 2250/20 (2013.01);
Abstract
A rotary internal combustion engine including a rotor assembly where at least a first and a second of the combustion chambers have unequal theoretical volumetric ratios. Also, a rotary internal combustion engine including first and second rotor assemblies where at least one of the combustion chambers of the first rotor assembly and at least one of the combustion chambers of the second rotor assembly have unequal effective volumetric compression ratios and/or unequal effective volumetric expansion ratios.