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. 20, 1998
Filed:
Jun. 17, 1996
Gaetan Monnier, Rueil-Malmaison, FR;
Institut Francais du Peetrole, Rueil-Malmaison, FR;
Abstract
The invention relates to a device for controlling the intake air of a spark-ignition four-stroke engine with direct injection of fuel into combustion chamber (1), comprising a main pipe (2) equipped with a throttling means (9), at least a first (3) and a second (4) intake pipe coming from main pipe (2) and opening each into combustion chamber (1), a pipe (7) for recycling the exhaust gases back to the intake equipped with a throttling means (8) and that opens downstream from the throttling means (9) of the main pipe and a means for controlling the air flow supplied to the combustion chamber. According to the invention, said air flow control means comprises a pipe (10) mounted as a bypass on said main pipe (2), around the throttling means (9) thereof, said pipe (10) having a section substantially equal to that of main pipe (2), and a means (11, 12; 14) allowing to seal at least said bypass (10) as a function of the running conditions of the engine.