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:
Mar. 07, 2000
Filed:
May. 28, 1998
Cooper Industries Italia Spa, , IT;
Abstract
An ignition system for internal combustion engines with spark ignition comprising an ignition coil, a spark plug connected to the secondary winding, an electric supply circuit associated with the primary winding of the coil, where the said circuit includes a semiconductor device controlled by an electronic control unit programmed to produce a charging cycle in the course of which the instantaneous current flowing in the primary winding gradually increases from a minimum value to a maximum value and then returns brusquely to the minimum value. The electronic control unit is programmed to produce a succession of charging cycles during one and the same engine cycle. Each of the said charging cycles is separated from the previous cycle by a time interval (W) of a duration that is either equal to or greater than the duration (DA) of a discharge cycle.