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. 04, 2006
Filed:
Feb. 10, 2005
Mario Ricco, Orbassano, IT;
Sisto Luigi DE Matthaeis, Orbassano, IT;
Claudio Amorese, Orbassano, IT;
Dario Manodoro, Orbassano, IT;
Raffaele Ricco, Orbassano, IT;
Mario Ricco, Orbassano, IT;
Sisto Luigi De Matthaeis, Orbassano, IT;
Claudio Amorese, Orbassano, IT;
Dario Manodoro, Orbassano, IT;
Raffaele Ricco, Orbassano, IT;
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The reduced pressure supplied by the pressure-reducing valve is further reduced via a pressure-regulating solenoid valve, to an extent that depends upon the supply current of its solenoid. The electrical supply to the solenoid of said solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail and according to stored maps, which supply the optimal pressure value for each operating condition of the engine.