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:
Apr. 15, 2003
Filed:
Mar. 07, 2001
Massimo Marchioni, Bologna, IT;
Nicola Morelli, Rende, IT;
Magnetic Marelli S.p.A., Milan, IT;
Abstract
An electromagnetic actuator for intake or exhaust valves of an internal combustion engine, in which an oscillating arm has an end in abutment on the upper end of the stem of the intake or exhaust valve; two electromagnets being provided to move the oscillating arm so as axially to displace this valve; a frame supporting the arm being connected to the head of the engine so as to be able to oscillate about an axis perpendicular to the axis of movement of the intake or exhaust valve and the electromagnetic actuator being provided with a device for adjusting the position of the frame with respect to the head to rotate the frame so as to maintain the mechanical play between the end of the oscillating arm and the stem of the valve at a predetermined value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile