Patent Number: 8,875,675

Title: Internal combustion engine having a plurality of exhaust ports per cylinder and charge exchange method for such an internal combustion engine

Abstract: A method for controlling valve actuation in an engine is provided. The method includes initiating combustion operation in a first cylinder, opening, via a first cam, a first exhaust valve coupled to the first cylinder for a first opening duration. The method further includes opening, via a second cam, a second exhaust valve coupled to the first cylinder for a second opening duration not equivalent to the first opening duration.

Inventors: Ruhland; Helmut Hans (Eschweiler, DE), Dunstheimer; Jens (Cologne, DE), Breuer; Albert (Cologne, DE), Yamada; Shuya Shark (Novi, MI)

Assignee: Ford Global Technologies, LLC

International Classification: F01L 1/34 (20060101)

Expiration Date: 2019-11-04 0:00:00