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:
May. 01, 2007
Filed:
Jun. 17, 2005
Applicant:
Tae-kyung Kim, Sterling Heights, MI (US);
Inventor:
Tae-kyung Kim, Sterling Heights, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic fluid cam providing variable valve actuation in an engine is disclosed. In one embodiment, the hydraulic fluid cam is adapted to vary valve timing while holding valve displacement constant. In another embodiment, the hydraulic fluid cam is adapted to vary valve displacement, while holding valve timing constant. Some embodiments are adapted to vary both valve timing and displacement simultaneously to optimize engine performance.