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. 03, 2009
Filed:
Mar. 14, 2006
Donn A. Frincke, Davison, MI (US);
Mark Stabinsky, Troy, MI (US);
William C. Albertson, Clinton Township, MI (US);
Donn A. Frincke, Davison, MI (US);
Mark Stabinsky, Troy, MI (US);
William C. Albertson, Clinton Township, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A variable displacement internal combustion engine having a cylinder block and a cylinder head attached thereto. The variable displacement internal combustion engine includes at least one switching hydraulic lash adjuster. A lash adjuster oil feed passage is at least partially defined by one of the cylinder block and the cylinder head. The lash adjuster oil feed passage is operable to communicate pressurized oil to the at least one switching hydraulic lash adjuster. A distributed accumulator is disposed within the lash adjuster oil feed passage and operates to attenuate oil pressure spikes within the lash adjuster oil feed passage.