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. 20, 2014
Filed:
Oct. 20, 2011
Russell P. Durrett, Bloomfield Hills, MI (US);
Venkatesh Gopalakrishnan, Troy, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
Russell P. Durrett, Bloomfield Hills, MI (US);
Venkatesh Gopalakrishnan, Troy, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A free piston linear alternator including a pair of pistons, each piston axially opposed from the other and generating electric current when linearly translating within the cylinder, a combustion chamber disposed between the pistons, a return mechanism configured to return the pistons to respective first positions from respective second positions after combustion; and an exhaust system fluidly coupled to the combustion chamber and including a power turbine transforming exhaust gas feedstream pressure into a mechanical output.