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:
Feb. 06, 2018
Filed:
Sep. 17, 2014
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Lionel Martinez, Maulette, FR;
Stephane Richard, Bazainville, FR;
Olivier Laget, Rueil-Malmaison, FR;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
AIRBUS HELICOPTERS, Marignane, FR;
Abstract
The present invention is a compression-ignition direct-injection internal-combustion engine comprising at least a cylinder (), a cylinder head () carrying fuel injection means (), a piston () sliding in this cylinder, a combustion chamber () having on one side an upper face () of the piston comprising a projection () extending in the direction of the cylinder head and located at the center of a concave bowl (). The engine comprises an injector projecting fuel in at least two fuel jet sheets with sheet injection angles (A, A), a lower sheet () of jet axis Cand an upper sheet () of jet axis C, at least two mixing zones (Z, Z) of the combustion chamber. According to the invention, one of the zones comprises a toroidal volume () of center B into which fuel jets () of the lower jet are injected in such a way that axis Cof the lower jet is contained between center B and projection ().