Global Patent Index - EP 1573191 A1

EP 1573191 A1 20050914 - DIRECT-INJECTION SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Title (en)

DIRECT-INJECTION SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Title (de)

DIREKTEINSPRITZENDE OTTO-BRENNKRAFTMASCHINE

Title (fr)

MOTEUR A COMBUSTION INTERNE A ALLUMAGE PAR ETINCELLE ET INJECTION DIRECTE

Publication

EP 1573191 A1 20050914 (DE)

Application

EP 03779929 A 20031114

Priority

  • DE 10261185 A 20021220
  • EP 0312732 W 20031114

Abstract (en)

[origin: WO2004059153A1] The invention relates to a direct-injection spark-ignition internal combustion engine comprising one injector (8) per cylinder (2) for injecting fuel into a combustion chamber (4). The injector (8) has an injection nozzle (11) comprising several injection orifices (12) that are distributed around its periphery, the fuel jets (13) of said orifices forming a conical cloud of fuel (14) during an injection operation when mixed with combustion air that is supplied separately. To improve the geometry of the combustion chamber, a plunger basin (6), which enlarges the combustion chamber (4) and lies opposite the injection nozzle (11), can be provided in the plunger head (5) of the plunger (3). In order to counteract a wetting of the plunger by the fuel, in particular for a late fuel injection in a stratified charge mode, the invention is equipped with a plunger basin (6), which is radially enlarged by several radial cavities (16) that are hollowed out of the plunger head (5) and that receive injected fuel.

IPC 1-7

F02F 3/26; F02B 17/00; F02B 23/10

IPC 8 full level

F02B 17/00 (2006.01); F02B 23/10 (2006.01); F02F 3/26 (2006.01); F02B 75/12 (2006.01)

CPC (source: EP US)

F02B 17/00 (2013.01 - EP US); F02B 23/101 (2013.01 - EP US); F02F 3/26 (2013.01 - EP US); F02B 2023/103 (2013.01 - EP US); F02B 2075/125 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)

Citation (search report)

See references of WO 2004059153A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 2004059153 A1 20040715; DE 10261185 A1 20040715; EP 1573191 A1 20050914; JP 2006510843 A 20060330; JP 4280928 B2 20090617; US 2005252483 A1 20051117; US 7143738 B2 20061205

DOCDB simple family (application)

EP 0312732 W 20031114; DE 10261185 A 20021220; EP 03779929 A 20031114; JP 2004562547 A 20031114; US 15716505 A 20050620