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:
Apr. 18, 2023
Filed:
Sep. 08, 2021
Applicant:
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Inventor:
Alan W. Smith, Greenwood, IN (US);
Assignee:
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/06 (2006.01); F02C 3/04 (2006.01); F02C 7/16 (2006.01);
U.S. Cl.
CPC ...
F02C 7/06 (2013.01); F02C 3/04 (2013.01); F02C 7/16 (2013.01); F05D 2220/76 (2013.01); F05D 2260/98 (2013.01); F05D 2270/303 (2013.01);
Abstract
An oil pumping system for use with a gas turbine engine includes an electric machine, an oil pump assembly, and a variable frequency drive controller. The variable frequency drive is connected with the electric machine and the oil pump assembly. The variable frequency drive controller is programmed to control a torque and speed of the pump motor independent of the gas turbine engine speed so that a flow of oil moved by the oil pump assembly is controlled to cool or lubricate components of the gas turbine engine independent of the gas turbine engine speed.