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:
Jul. 17, 2018
Filed:
Apr. 08, 2015
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Lionel Martinez, Vaulnaveys le Bas, FR;
Stéphane Richard, Bazainville, FR;
Olivier Laget, Rueil-Malmaison, FR;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
Abstract
The present invention relates to a compression-ignition direct-injection internal-combustion engine with a compression ratio ranging between 13.5 and 16.5 including a combustion chamber limited on one side by upper face () of a piston () comprising a projection () arranged in the center of a concave bowl () with at least two mixing zones (Z, Z), a fuel injection comprising at least one injector () projecting fuel in at least two fuel jet sheets () with different sheet angles (A, A). The fuel injector comprises two rows of injection orifices () arranged one above the other with the number of orifices of each row (Ninf, Nsup) is greater than or equal to −4·Ns+14 and less than or equal to −4·Ns+16 for the lower sheet or −4·Ns+18 for the upper sheet. Ns is the swirl number of this engine with a swirl number less than 1.5.