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:
Jun. 13, 2017
Filed:
Jun. 12, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Russell P. Durrett, Bloomfield Hills, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
Peter P. Andruskiewicz, Ann Arbor, MI (US);
Elliott Ortiz-Soto, Ann Arbor, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
A single-shaft dual expansion internal combustion engine includes an engine block, a cylinder head, a single crankshaft, a control shaft and first, second and third multi-link connecting rod assemblies. First and second power cylinders and an expander cylinder are formed in the engine block. First and second power pistons are moveable in the first and second power cylinders and are connected to respective first and second crankpins of the crankshaft. An expander piston is moveable in the expander cylinder and is connected to a third crankpin of the crankshaft. First and second multi-link connecting rod assemblies are coupled to first and second swing arms of the control shaft. A third multi-link connecting rod assembly is coupled to a third swing arm of the control shaft.