EP 2504565 B1 20171115 - LASER SPARK PLUG AND METHOD FOR OPERATING THE SAME
Title (en)
LASER SPARK PLUG AND METHOD FOR OPERATING THE SAME
Title (de)
LASERZÜNDKERZE UND BETRIEBSVERFAHREN HIERFÜR
Title (fr)
BOUGIE D'ALLUMAGE LASER ET PROCÉDÉ PERMETTANT DE FAIRE FONCTIONNER LADITE BOUGIE
Publication
Application
Priority
- DE 102009047010 A 20091123
- EP 2010064053 W 20100923
Abstract (en)
[origin: WO2011060983A1] The invention relates to a laser spark plug (100), in particular for an internal combustion engine of a motor vehicle, having a combustion chamber window (120) arranged in an end region (100a) facing toward a combustion chamber. According to the invention, means (130) are provided for cooling a volume region (210) situated in the region of the combustion chamber window (120) and/or for cooling a medium situated in the volume region (210). The means for cooling (130) have a cooling body which has material with relatively high thermal conductivity, in particular with a thermal conductivity of approximately 90 watts per kelvin-meter at room temperature or higher. The cooling body (131) is formed substantially in the shape of a circular ring. An inner diameter (D1) of the cooling body (131) in the region of an end side (131a) of the cooling body (131) facing toward the combustion chamber is smaller than an inner diameter (D2) of the cooling body (131) in the region of an end side of the cooling body (131) facing away from the combustion chamber. Heat conducting means (140) are provided which permit a dissipation of heat from an end region (100a) of the laser spark plug (100) facing toward the combustion chamber in the direction of an end region (100b) facing away from the combustion chamber.
IPC 8 full level
F02P 23/04 (2006.01); H01S 3/04 (2006.01)
CPC (source: EP US)
F02P 23/04 (2013.01 - EP US)
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009047010 A1 20110526; CN 102612595 A 20120725; CN 102612595 B 20151125; EP 2504565 A1 20121003; EP 2504565 B1 20171115; JP 2013511658 A 20130404; JP 5436693 B2 20140305; US 2013025549 A1 20130131; US 8789497 B2 20140729; WO 2011060983 A1 20110526
DOCDB simple family (application)
DE 102009047010 A 20091123; CN 201080052801 A 20100923; EP 10770515 A 20100923; EP 2010064053 W 20100923; JP 2012540332 A 20100923; US 201013511324 A 20100923