EP 2577042 A1 20130410 - LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
LASERINDUZIERTE FREMDZÜNDUNG FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
ALLUMAGE INDUIT PAR LASER POUR UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 102010029398 A 20100527
- EP 2011055246 W 20110405
Abstract (en)
[origin: WO2011147623A1] Disclosed is a laser spark plug for an internal combustion engine (10), comprising at least one means (26) for guiding, forming, and/or generating laser radiation (24), further comprising a combustion chamber window (58) and a housing (38). Said laser spark plug is characterized in that the housing (38) includes a diaphragm (74) to allow the laser radiation (24) guided, formed, and/or generated by the means (26) to penetrate into a precombustion chamber (110) located at the combustion chamber end (381) of the housing (38), said diaphragm (74) being located on the side of the combustion chamber window (58) that lies opposite the means (26). At least one overflow duct (120) provides a fluid connection between an interior (111) of the precombustion chamber (110) and a combustion chamber surrounding the precombustion chamber (110). Said at least one overflow duct (120) is disposed and designed such that a fluid flow (F) is generated which enters the interior of the diaphragm (74) at a minimum angle e of 45°, in particular measured in relation to the longitudinal axis of the laser spark plug, when a fluid flows into the interior (111) of the precombustion chamber (110) via the overflow duct (120).
IPC 8 full level
F02P 23/04 (2006.01); F02B 19/12 (2006.01)
CPC (source: EP US)
F02B 17/005 (2013.01 - EP US); F02B 23/105 (2013.01 - EP US); F02P 23/04 (2013.01 - EP US); F02P 13/00 (2013.01 - EP); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2011147623A1
Citation (examination)
EP 2504564 A1 20121003 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010029398 A1 20111201; EP 2577042 A1 20130410; JP 2013527376 A 20130627; JP 5766280 B2 20150819; US 2013133602 A1 20130530; US 9284939 B2 20160315; WO 2011147623 A1 20111201
DOCDB simple family (application)
DE 102010029398 A 20100527; EP 11711934 A 20110405; EP 2011055246 W 20110405; JP 2013511584 A 20110405; US 201113699924 A 20110405