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:
May. 31, 2022
Filed:
Jul. 30, 2019
Pratt & Whitney Canada Corp., Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
The compressor for a gas turbine engine includes a rotor with blades, and a shroud surrounding the rotor and having an inner surface surrounding tips of the blade. A plurality of grooves are defined in the inner surface of the shroud adjacent the blade tips, the grooves extending circumferentially about the shroud and extending radially from groove inlet openings defined in the inner surface to closed end surfaces of the grooves. The grooves are axially spaced-apart from each other and disposed axially between the leading and trailing edges of the blades. The grooves have a forwardly swept angle from the inner surface, and circumferential interruptions such that the grooves extend non-continuously around the shroud circumference.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile