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. 04, 2022
Filed:
Mar. 22, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
David Waddleton, Candiac, CA;
Benjamin Renaud, Montreal, CA;
Sebastien Bergeron, Chambly, CA;
Etienne Plamondon, Candiac, CA;
Jean-Gabriel Gauvreau, Varennes, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 9/28 (2006.01); F02C 9/30 (2006.01); F04D 15/00 (2006.01); F02C 7/22 (2006.01); B64D 37/00 (2006.01);
U.S. Cl.
CPC ...
F02C 9/28 (2013.01); F02C 7/22 (2013.01); F02C 9/30 (2013.01); F04D 15/0022 (2013.01); B64D 37/00 (2013.01); F05D 2270/301 (2013.01);
Abstract
A rotodynamic pump for pumping a fluid includes an impeller, a housing surrounding the impeller, and a pressure regulating mechanism. The pressure regulating mechanism is configured to adjust the clearance between the impeller and the impeller housing to regulate pressure of the fluid downstream of the impeller. A method of regulating the delivery pressure is also disclosed.