WO2009097635A3 - Laser ignition device - Google Patents

Laser ignition device Download PDF

Info

Publication number
WO2009097635A3
WO2009097635A3 PCT/AT2009/000017 AT2009000017W WO2009097635A3 WO 2009097635 A3 WO2009097635 A3 WO 2009097635A3 AT 2009000017 W AT2009000017 W AT 2009000017W WO 2009097635 A3 WO2009097635 A3 WO 2009097635A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
chamber window
base
fastening element
ignition device
Prior art date
Application number
PCT/AT2009/000017
Other languages
German (de)
French (fr)
Other versions
WO2009097635A2 (en
Inventor
Friedrich Gruber
Original Assignee
Ge Jenbacher Gmbh & Co Ohg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ge Jenbacher Gmbh & Co Ohg filed Critical Ge Jenbacher Gmbh & Co Ohg
Priority to EP09707237A priority Critical patent/EP2238341A2/en
Publication of WO2009097635A2 publication Critical patent/WO2009097635A2/en
Publication of WO2009097635A3 publication Critical patent/WO2009097635A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P23/00—Other ignition
    • F02P23/04—Other physical ignition means, e.g. using laser rays

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Disclosed is a laser ignition device comprising a base (1) and a combustion chamber window (2) for injecting laser light into the combustion chamber (4) of an internal combustion engine. The combustion chamber window (2) rests against a receiving collar (5) of the base (1) in the area of the surface (2a) from which the laser light emerges. By applying pressure, a fastening element (6) fixes the combustion chamber window (2) to the base (1) in the area of the surface (2b) on which the laser light is incident. Said fastening element (6) is designed such that the pressure applied to the combustion chamber window (2) by the fastening element (6) remains substantially constant or is increased when the temperature of the base (1) and/or the combustion chamber window (2) rises. Also disclosed is an internal combustion engine comprising such a laser ignition device. The fastening element (6) has a higher coefficient of thermal expansion than the base (1) and/or the combustion chamber window. The fastening element (6) is designed as a clamping sleeve and applies pressure to the combustion chamber window (2) under the effect of a spring.
PCT/AT2009/000017 2008-02-07 2009-01-20 Laser ignition device WO2009097635A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09707237A EP2238341A2 (en) 2008-02-07 2009-01-20 Laser ignition device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA200/2008 2008-02-07
AT2002008A AT506343B1 (en) 2008-02-07 2008-02-07 laser ignition device

Publications (2)

Publication Number Publication Date
WO2009097635A2 WO2009097635A2 (en) 2009-08-13
WO2009097635A3 true WO2009097635A3 (en) 2009-10-29

Family

ID=40718835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2009/000017 WO2009097635A2 (en) 2008-02-07 2009-01-20 Laser ignition device

Country Status (3)

Country Link
EP (1) EP2238341A2 (en)
AT (1) AT506343B1 (en)
WO (1) WO2009097635A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9742156B2 (en) 2007-08-31 2017-08-22 Robert Bosch Gmbh Laser spark plug having an improved seal between the combustion chamber window and the casing
DE102007041528A1 (en) * 2007-08-31 2009-03-05 Robert Bosch Gmbh Ignition device for a laser ignition of an internal combustion engine
DE102011087192A1 (en) 2011-11-28 2013-05-29 Robert Bosch Gmbh Housing for a laser spark plug
DE102008041130A1 (en) 2008-08-08 2010-02-11 Robert Bosch Gmbh Ignition device for a laser ignition of an internal combustion engine
US8833323B2 (en) 2009-02-02 2014-09-16 Robert Bosch Gmbh Ignition laser
AT512253B1 (en) * 2011-11-22 2013-11-15 Ge Jenbacher Gmbh & Co Ohg laser spark plug
DE102011087191A1 (en) * 2011-11-28 2013-05-29 Robert Bosch Gmbh Housing for a laser spark plug and manufacturing method thereof
DE102011087193A1 (en) * 2011-11-28 2013-05-29 Robert Bosch Gmbh Housing for a laser spark plug
JP6290739B2 (en) * 2014-07-17 2018-03-07 京セラ株式会社 Insulating substrate for laser plug and laser plug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422323A (en) * 1981-02-20 1983-12-27 Robert Bosch Gmbh Combustion process observation element construction
JPS59101585A (en) * 1982-11-30 1984-06-12 Nippon Denso Co Ltd Ignition device for internal-combustion engine
EP1820948A1 (en) * 2006-02-20 2007-08-22 GE Jenbacher GmbH & Co. OHG Support arrangement for combustion chamber window
WO2009027145A1 (en) * 2007-08-31 2009-03-05 Robert Bosch Gmbh Ignition device for a laser ignition of an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422323A (en) * 1981-02-20 1983-12-27 Robert Bosch Gmbh Combustion process observation element construction
JPS59101585A (en) * 1982-11-30 1984-06-12 Nippon Denso Co Ltd Ignition device for internal-combustion engine
EP1820948A1 (en) * 2006-02-20 2007-08-22 GE Jenbacher GmbH & Co. OHG Support arrangement for combustion chamber window
WO2009027145A1 (en) * 2007-08-31 2009-03-05 Robert Bosch Gmbh Ignition device for a laser ignition of an internal combustion engine

Also Published As

Publication number Publication date
WO2009097635A2 (en) 2009-08-13
AT506343B1 (en) 2010-12-15
AT506343A1 (en) 2009-08-15
EP2238341A2 (en) 2010-10-13

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