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.

Date of Patent:
Sep. 29, 2009

Filed:

Dec. 26, 2006
Applicant:

Michael P. Harmon, Dunlap, IL (US);

Inventor:

Michael P. Harmon, Dunlap, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A valve actuation system for an engine is provided. The valve actuation system can include two or more engine cylinders, each cylinder having at least one intake valve configured to control air-flow into each of the two or more cylinders and at least one exhaust valve configured to control the flow of exhaust gases out of each of the two or more cylinders. The at least one first cylinder includes an exhaust cam lobe configured to control the valve timing of an exhaust valve of the at least one first cylinder and to cause an exhaust valve of a second cylinder to open during an expansion stroke of the second cylinder.


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