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:
Jul. 18, 2006
Filed:
Aug. 28, 2004
Joachim Schmuecker, Raeren, BE;
Ing Gunter Guerich, Aachen, DE;
Herman-josef Laumen, Heinsberg, DE;
Adrain Tusinean, Windsor, CA;
Kevin Fuqua, Clarkston, MI (US);
Joachim Schmuecker, Raeren, BE;
Ing Gunter Guerich, Aachen, DE;
Herman-Josef Laumen, Heinsberg, DE;
Adrain Tusinean, Windsor, CA;
Kevin Fuqua, Clarkston, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A free piston engine has a pair of opposed cylinders on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each in a respective one of the cylinders, with a push rod connected therebetween. The push rod forms a fluid plunger. An outer piston assembly includes a pair of outer pistons, one each in a respective one of the cylinders, with a pull rod connected therebetween. The pull rod forms a fluid plunger. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output. A hydraulic coupler synchronizes the inner and outer piston assemblies.