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:
Feb. 28, 2012
Filed:
Oct. 02, 2009
James B. Hicks, Shelby Township, MI (US);
William C. Albertson, Clinton Township, MI (US);
Mark Stabinsky, Troy, MI (US);
Mike M. Mcdonald, Macomb, MI (US);
James B. Hicks, Shelby Township, MI (US);
William C. Albertson, Clinton Township, MI (US);
Mark Stabinsky, Troy, MI (US);
Mike M. McDonald, Macomb, MI (US);
Abstract
A method of purging air from an oil passage in communication with a lifter assembly in an engine assembly may include isolating the oil passage from a pressurized oil source while the lifter assembly is engaged with a base region of a cam lobe to operate the first lifter assembly in the activated mode. The pressurized oil may be provided to the lifter assembly via the oil passage after the isolating when the lifter assembly is engaged with a lift region of the cam lobe. The lifter assembly may be maintained in the activated mode after the providing. Air may be purged from the oil passage based on the pressurized oil provided to the oil passage.