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WO2008151054A3 - Thermal shock resistant gas sensor element - Google Patents

Thermal shock resistant gas sensor element Download PDF

Info

Publication number
WO2008151054A3
WO2008151054A3 PCT/US2008/065375 US2008065375W WO2008151054A3 WO 2008151054 A3 WO2008151054 A3 WO 2008151054A3 US 2008065375 W US2008065375 W US 2008065375W WO 2008151054 A3 WO2008151054 A3 WO 2008151054A3
Authority
WO
WIPO (PCT)
Prior art keywords
thermal shock
shock resistant
sensor element
gas sensor
resistant gas
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2008/065375
Other languages
French (fr)
Other versions
WO2008151054A2 (en
Inventor
James Richard Waldrop
Juergen Sindel
Juergen Reiss
Jeffrey Mccollum
Heiner Scheer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2008151054A2 publication Critical patent/WO2008151054A2/en
Publication of WO2008151054A3 publication Critical patent/WO2008151054A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4077—Means for protecting the electrolyte or the electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

A thermal shock resistant sensor element that includes a sensor element (10) having a gamma alumina coating (62) on at least a portion thereof. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 600°C. A method of making a thermal shock resistant element that includes plasma spraying gamma alumina onto a sensor element to form a thermal shock resistant element. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 500°C. A thermal shock resistant sensor element that includes a sensor element having an alumina coating on at least a portion thereof. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 500°C and demonstrates a Si poisoning resistance.
PCT/US2008/065375 2007-06-01 2008-05-30 Thermal shock resistant gas sensor element Ceased WO2008151054A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US94162607P 2007-06-01 2007-06-01
US60/941,626 2007-06-01
US94716707P 2007-06-29 2007-06-29
US60/947,167 2007-06-29

Publications (2)

Publication Number Publication Date
WO2008151054A2 WO2008151054A2 (en) 2008-12-11
WO2008151054A3 true WO2008151054A3 (en) 2009-02-19

Family

ID=39710966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/065375 Ceased WO2008151054A2 (en) 2007-06-01 2008-05-30 Thermal shock resistant gas sensor element

Country Status (1)

Country Link
WO (1) WO2008151054A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8906214B2 (en) 2003-02-10 2014-12-09 Robert Bosch Gmbh Contamination-resistant gas sensor element
JP4992744B2 (en) * 2008-02-04 2012-08-08 トヨタ自動車株式会社 Exhaust gas sensor
KR101328777B1 (en) * 2012-10-31 2013-11-13 주식회사 현대케피코 Oxygen sensor with porous ceramic coating layer and method for porous ceramic coating there of
US9297791B2 (en) 2012-12-20 2016-03-29 Robert Bosch Gmbh Gas sensor with thermal shock protection

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199425A (en) * 1978-11-30 1980-04-22 General Motors Corporation Solid electrolyte exhaust gas sensor with increased NOx sensitivity
US4272349A (en) * 1979-02-07 1981-06-09 Toyota Jidosha Kogyo Kabushiki Kaisha Catalyst supported oxygen sensor with sensor element having catalyst and protective layers and a method of manufacturing same
JPS6179155A (en) * 1984-09-27 1986-04-22 Nissan Motor Co Ltd Oxygen sensor element
JPS61207961A (en) * 1985-03-13 1986-09-16 Japan Electronic Control Syst Co Ltd Oxygen sensor
EP1164371A1 (en) * 2000-06-12 2001-12-19 Denso Corporation Gas sensing element incorporated in a gas sensor for an internal combustion engine
US6630062B1 (en) * 2000-08-04 2003-10-07 Delphi Technologies, Inc. Poison resistant sensor
WO2004061445A1 (en) * 2002-12-23 2004-07-22 Robert Bosch Gmbh Probe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199425A (en) * 1978-11-30 1980-04-22 General Motors Corporation Solid electrolyte exhaust gas sensor with increased NOx sensitivity
US4272349A (en) * 1979-02-07 1981-06-09 Toyota Jidosha Kogyo Kabushiki Kaisha Catalyst supported oxygen sensor with sensor element having catalyst and protective layers and a method of manufacturing same
JPS6179155A (en) * 1984-09-27 1986-04-22 Nissan Motor Co Ltd Oxygen sensor element
JPS61207961A (en) * 1985-03-13 1986-09-16 Japan Electronic Control Syst Co Ltd Oxygen sensor
EP1164371A1 (en) * 2000-06-12 2001-12-19 Denso Corporation Gas sensing element incorporated in a gas sensor for an internal combustion engine
US6630062B1 (en) * 2000-08-04 2003-10-07 Delphi Technologies, Inc. Poison resistant sensor
WO2004061445A1 (en) * 2002-12-23 2004-07-22 Robert Bosch Gmbh Probe

Also Published As

Publication number Publication date
WO2008151054A2 (en) 2008-12-11

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