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:
Jul. 08, 2003
Filed:
Jun. 27, 2002
Jin-Kook Kong, Suwon, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
The present invention relates to a variable valve lift system that varies a valve lift in two stages by selectively rigidly engaging a tappet shim. The system includes a tappet shim receiving an operational force of a cam; a body for transmitting an operational force of the tappet shim to a valve; first and second supports, the first supports being provided on a surface of the tappet shim opposing the body and the second supports being provided on a surface of the body opposing the tappet shim, the first and second supports being supported by elastic members; first and second stoppers mounted respectively in first and second hydraulic pressure chambers, elastic members being interposed between the first and second stoppers and the body, and the first and second stoppers undergoing operation to selectively rigidly support the tappet shim; and a third stopper mounted in a third hydraulic pressure chamber, which is formed opposing the tappet shim, an elastic member being interposed between the third stopper and the body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile