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:
Aug. 16, 2011
Filed:
Jul. 03, 2008
Gabriele Serra, San Lazzaro di Savena, IT;
Matteo DE Cesare, Torremaggiore, IT;
Francesco Paolo Ausiello, Bologna, IT;
Gabriele Serra, San Lazzaro di Savena, IT;
Matteo De Cesare, Torremaggiore, IT;
Francesco Paolo Ausiello, Bologna, IT;
Magneti Marelli Powertrain, S.p.A., Corbetta, IT;
Abstract
A method for controlling the overpressure in a fuel-supply system of a common-rail type for an internal-combustion engine provided with a number of cylinders; the method has the steps of: supplying fuel under pressure to a common rail connected to a number of injectors by means of a high-pressure pump; detecting the effective value of the pressure of the fuel within the common rail; comparing the effective value of the pressure of the fuel within the common rail with a safety value; determining a condition of emergency if the effective value of the pressure of the fuel within the common rail is higher than the safety value; and driving, in the case of emergency, the injectors for discharging part of the fuel present in the common rail so as to contain the increase in pressure of the fuel within the common rail.