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. 08, 2013
Filed:
Jun. 11, 2010
Xavier Gautrot, Rueil Malmaison, FR;
Xavier Gautrot, Rueil Malmaison, FR;
IFP, Cedex, FR;
Abstract
The present invention relates to a method of controlling the intake of a supercharged engine comprising a cylinder () with at least two intake pipes () associated with their intake valves () and connected to an intake distributor (), and at least one exhaust pipe () with its exhaust valve (), a method according to which, before the end of the exhaust phase of said engine, an exhaust gas scavenging operation is carried out by overlap of exhaust valve () and intake valve () and, at the end of the scavenging operation, a stage of fuel mixture preparation is performed for combustion of this mixture in said cylinder. According to the invention, the method consists in introducing supercharged air from a first zone () of the intake distributor to carry out the scavenging operation, in using supercharged air from a second zone () of the distributor to produce a fuel mixture for the cylinder and, after the end of the intake phase, in sending to this second zone () part of the fuel mixture contained in the cylinder.