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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.:

US 9840968 B1

PDFFull Text
Date of Patent:
Dec. 12, 2017

Filed:

Sep. 16, 2015

Topologies and methods for turbine engine start inverters

Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

Harry H. Chai, Caledonia, IL (US);

Waleed M. Said, Rockford, IL (US);

Assignee:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Attorneys:

Locke Lord LLP

Scott D. Wofsy

Christopher J. Cillié

Primary Examiner:

Adolf Berhane

Assistant Examiner:

Bart Iliya

Int. Cl.
CPC ...
F02C 7/26 (2006.01); H02P 27/08 (2006.01); H02M 1/14 (2006.01); H02M 1/00 (2006.01); H02M 7/483 (2007.01); H02M 7/487 (2007.01);
U.S. Cl.
CPC ...
F02C 7/26 (2013.01); H02M 1/00 (2013.01); H02M 1/14 (2013.01); H02M 7/483 (2013.01); H02M 7/487 (2013.01); H02P 27/08 (2013.01); F05D 2260/85 (2013.01);
Abstract

A start inverter for an electric engine start scheme includes an inverter phase leg with solid-state switches and a pulse width modulator operatively connected to the solid-state switches of the inverter phase leg. The pulse width modulator provides command signals to the solid-state switches of the inverter phase leg to invert direct current into alternating current with less ripple than a start inverter with two solid-state switches per phase leg.

Find Patent Forward Citations

Chai, Harry. (2017). Topologies and methods for turbine engine start inverters (U.S. Patent No. 9840968). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9840968

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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