Global Patent Index - EP 2232028 A1

EP 2232028 A1 20100929 - DISSYMMETRICAL COMBUSTION CHAMBER FOR THERMAL ENGINE

Title (en)

DISSYMMETRICAL COMBUSTION CHAMBER FOR THERMAL ENGINE

Title (de)

ASYMMETRISCHE BRENNKAMMER FÜR VERBRENNUNGSMOTOR

Title (fr)

CHAMBRE DE COMBUSTION DISSYMETRIQUE POUR MOTEUR THERMIQUE

Publication

EP 2232028 A1 20100929 (FR)

Application

EP 08861953 A 20081215

Priority

  • EP 2008067565 W 20081215
  • FR 0759982 A 20071219

Abstract (en)

[origin: WO2009077507A1] The invention relates to a piston (3) for an internal combustion engine, in particular a diesel engine, that comprises a body defined laterally by a skirt capable of interaction with the walls of a cylinder having a revolution axis C in which the piston (3) is capable of sliding along said axis C, said piston (3) including a front face that comprises a central lug (321), a peripheral crown (322) and a bowl (323) having a revolution axis B extending from the central lug (321) to the peripheral crown (322) to which it is connected at a lip (3220) having a thickness Ep, said bowl (323) including substantially over the lip (3220) a tore (3230) preferably having a half-dome profile with a maximum radius Rt and capable of guiding a fuel injected under the lip (3220) in the region of a re-entrant R towards said central lug (321), characterised in that the central lug has separate upper A1 and lower A2 slopes, the upper slope A1 being more gentle than the lower slope A2.

IPC 8 full level

F02B 23/06 (2006.01)

CPC (source: EP US)

F02B 23/0672 (2013.01 - EP US); F02B 23/069 (2013.01 - EP US); F02F 3/26 (2013.01 - EP US); F02F 3/28 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)

Citation (search report)

See references of WO 2009077507A1

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

FR 2925602 A1 20090626; CN 101952567 A 20110119; EP 2232028 A1 20100929; JP 2011506848 A 20110303; RU 2010129531 A 20120127; RU 2472949 C2 20130120; US 2011011365 A1 20110120; WO 2009077507 A1 20090625

DOCDB simple family (application)

FR 0759982 A 20071219; CN 200880127014 A 20081215; EP 08861953 A 20081215; EP 2008067565 W 20081215; JP 2010538636 A 20081215; RU 2010129531 A 20081215; US 80931208 A 20081215