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:
Sep. 11, 2007
Filed:
Apr. 28, 2005
Marco Tonetti, Orbassano, IT;
Enrico Lanfranco, Orbassano, IT;
Andrea Ruggiero, Orbassano, IT;
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
A method and a device for controlling the exhaust gas recirculation in an internal-combustion engine are described herein. The engine is provided with an air-intake system, a gas-exhaust system, and an exhaust-gas-recirculation system. A linear oxygen sensor is arranged along the air-intake system in a section traversed, in use, by the air/recirculated-exhaust-gas mixture, for measuring the oxygen concentration in the mixture itself An electronic control unit is connected to the oxygen sensor and to the exhaust-gas-recirculation system for controlling the flow rate of recirculated exhaust gases on the basis of the oxygen concentration in the mixture taken in by the engine. In particular, the oxygen sensor is a UHEGO probe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile