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:
Jan. 01, 1980
Filed:
Feb. 06, 1978
Francesco Bellicardi, Bologna, IT;
Edoardo Weber - Fabbrica Italiana Carburatori S.p.A., Bologna, IT;
Abstract
The system is comprised of an electromagnetically operated valve for controlling the supply of air to the main and idle ducts of each carburetor stage to vary the fuel-air mixture in response to a signal from an oxygen concentration probe disposed upstream of the catalytic converter in the exhaust system of an internal combustion engine. The device is mounted on the vehicle structure rather than the engine and is comprised of a rotary cam disposed in operative relation with the plurality of metering valves to control the air supply from a single conduit leading from the air filter to a plurality of conduits leading to the various carburetor ducts.