EP 2587156 A4 20171227 - GLOWPLUG, PRODUCTION METHOD THEREOF AND HEATING DEVICE
Title (en)
GLOWPLUG, PRODUCTION METHOD THEREOF AND HEATING DEVICE
Title (de)
GLÜHKERZE, HERSTELLUNGSVERFAHREN DAFÜR UND ERHITZUNGSVORRICHTUNG DAMIT
Title (fr)
BOUGIE DE PRÉCHAUFFAGE, PROCÉDÉ DE PRODUCTION ASSOCIÉ ET DISPOSITIF DE CHAUFFAGE
Publication
Application
Priority
- JP 2010141149 A 20100622
- JP 2011062373 W 20110530
Abstract (en)
[origin: WO2011162074A1] The disclosed glowplug (1) is provided with a cylindrical tube (7) that is closed at the tip, a heating coil (9) that is inserted into the tube (7), and a seal (11) that is provided to the open rear end of the tube (7) and seals the tube (7). The heating coil (9) is formed by a metal member that has tungsten (W) or molybdenum (Mo) as the primary component and the tube (7) is formed from an alloy that contains 0.5-5.0 mass% aluminium (Al) and 20-40 mass% chromium (Cr). Due to the tube (7) containing Al and Cr in designated amounts, as well as the tube having high anti-oxidation properties, the oxygen partial pressure within the tube (7) is reduced and the oxidation of the heating coil (9) can be controlled. As a result, the durability of both the heating coil (9) and the tube (7) is increased and high temperature heating over a long period is possible.
IPC 8 full level
F23Q 7/00 (2006.01)
CPC (source: EP)
F23Q 7/001 (2013.01); H05B 3/06 (2013.01); H05B 3/48 (2013.01); F02P 19/02 (2013.01); F23Q 2007/004 (2013.01); H05B 2203/027 (2013.01)
Citation (search report)
- [Y] WO 9118244 A1 19911128 - CATERPILLAR INC [US]
- [Y] WO 2010056411 A1 20100520 - FEDERAL MOGUL IGNITION CO [US], et al
- [A] US 5575972 A 19961119 - MITSUHASHI AKIRA [JP], et al
- [A] JP 2008014567 A 20080124 - NGK SPARK PLUG CO
- [A] JP 2009257666 A 20091105 - NGK SPARK PLUG CO
- [A] EP 0924468 A2 19990623 - DAIMLER CHRYSLER AG [DE], et al
- [A] JP H06264169 A 19940920 - INKO AROISU LTD
- See references of WO 2011162074A1
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 102011077239 A1 20111222; EP 2587156 A1 20130501; EP 2587156 A4 20171227; EP 2587156 B1 20190417; JP 5255706 B2 20130807; JP WO2011162074 A1 20130819; WO 2011162074 A1 20111229
DOCDB simple family (application)
DE 102011077239 A 20110609; EP 11794611 A 20110530; JP 2011062373 W 20110530; JP 2011538563 A 20110530