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:
Oct. 07, 2025
Filed:
Apr. 08, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Julien Simard-Bergeron, Montréal, CA;
David Gagnon-Martin, Longueuil, CA;
Jean-Gabriel Gauvreau, Varennes, CA;
Stephane Berube, St-Philippe, CA;
Sébastien Bolduc, St-Bruno-de-Montarville, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A housing assembly has: a rotor housing extending around a rotation axis and from a first side to a second side, and having an inner face; a housing secured to the first side; and a seal received within a groove at an interface between the rotor housing and the housing, the groove extending around a perimeter of the first side and located radially outwardly of the inner face, the seal including: an elastomeric member; and a shield disposed inwardly of the elastomeric member and in contact with both the housing and the rotor housing, the shield including a thermoset plastic member extending along at least a portion of a perimeter of the groove and axially overlapping the elastomeric member, the thermoset plastic member circumferentially overlapping a combustion region of the rotor cavity where combustion occurs during operation of the rotary internal combustion engine.