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:
May. 10, 1977
Filed:
Jan. 15, 1975
Applicant:
Inventors:
Assignees:
Les Usines Laprade, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ; F02B / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 1231 / ; 1231 / ;
Abstract
A carburettor for an internal combustion engine including a main duct and an auxiliary duct which receive air from a valved inlet, a main valve in each of the ducts for controlling flow through the ducts. Fuel is introduced into the auxiliary duct upstream of the main valve therein but downstream of an auxiliary valve in the auxiliary duct which is used to control the fuel to air ratio of the fuel/air mixture produced by the carburettor. The auxiliary valve is controlled in accordance with engine temperature, pressure drop across air filter, degree of dilution of recycled exhaust gases, degree of combustion of exhaust gases, temperature of air entering the engine, or atmospheric pressure.