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:
Nov. 20, 2012
Filed:
Dec. 15, 2009
Applicants:
Richard B. Roe, Henrietta, NY (US);
Jongmin Lee, Pittsford, NY (US);
Inventors:
Richard B. Roe, Henrietta, NY (US);
Jongmin Lee, Pittsford, NY (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a dual intake valve arrangement for an internal combustion engine, a variable valve lift system controls two intake valves for one or more engine cylinders. In each cylinder, one of the intake valves includes an associated two-step actuation device, and the other includes an associated valve deactivation device. To improve in-cylinder air flow turbulence, one valve may be operated in a high-lift or low-lift state while the other valve may be deactivated.