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:
Apr. 19, 2011
Filed:
Aug. 17, 2006
Alex Gibson, Ann Arbor, MI (US);
Nate Trask, Dearborn, MI (US);
Dennis Reed, Dexter, MI (US);
Ilya V. Kolmanovsky, Novi, MI (US);
Alex Gibson, Ann Arbor, MI (US);
Nate Trask, Dearborn, MI (US);
Dennis Reed, Dexter, MI (US);
Ilya V. Kolmanovsky, Novi, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method of operating an engine for a vehicle having at least a first cylinder, the method comprising of operating the first cylinder to provide at least one of compression braking and expansion braking by holding one of an intake valve and an exhaust valve of the first cylinder closed while opening, closing, and opening the other of the intake valve and the exhaust valve during a cycle of the first cylinder and during a first vacuum level of an intake manifold upstream of the first cylinder; and operating the first cylinder to provide at least one of compression braking and expansion braking by operating both the intake valve and the exhaust valve of the first cylinder during a cycle of the first cylinder to allow at least some air to flow through the first cylinder during a second vacuum level of the intake manifold.