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:
Oct. 23, 2012
Filed:
Nov. 26, 2008
Marcello Sciuto, San Giovanni in Persiceto, IT;
Gabriele Giuliani, Budrio, IT;
Mario Marconi, Bologna, IT;
Alessandro Peciarolo, Bologna, IT;
Marcello Sciuto, San Giovanni in Persiceto, IT;
Gabriele Giuliani, Budrio, IT;
Mario Marconi, Bologna, IT;
Alessandro Peciarolo, Bologna, IT;
Magneti Marelli Powertrain S.p.A., Corbetta, IT;
Abstract
A method of manufacturing and controlling a butterfly valve for an internal combustion engine; the manufacturing and control method includes the steps of: establishing a maximum gaseous flow rate value which may flow through the feeding pipe when the butterfly plate is in the closing position; determining a conventional closing position at which the gaseous flow rate which flows through the feeding pipe is essentially equal to the maximum gaseous flow rate value; driving an actuator device so as not to normally pass the conventional closing position; and dimensioning the position of a catch element, so that when a rotational shaft abuts against the catch element the gaseous flow rate which flows through the feeding pipe is essentially lower than the maximum gaseous flow rate value.