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. 10, 2012
Filed:
May. 27, 2009
Konstantin S. Majarov, Redondo Beach, CA (US);
Thomas P. O'meara, Venice, CA (US);
Konstantin S. Majarov, Redondo Beach, CA (US);
Thomas P. O'Meara, Venice, CA (US);
GM Global Technology Operations LLC, Detroit, MA (US);
Abstract
A hydrogen fuel cell system () for charging a battery () of an electric vehicle, includes at least one tank () for storing hydrogen under pressure. A combined heat exchanger and air engine () expands the pressurized hydrogen and converts the expanding hydrogen into mechanical energy. A plurality of fuel cells () receive the expanded hydrogen for supplying heat to the heat exchanger and air engine () and supplying a first current for charging the battery (). A generator () generates a multi-phase voltage in response to the mechanical energy. A electrical power converter () responsive to the multi-phase voltage provides a second current for charging the battery ().