GB1367389A - Electrochemical element for determining the oxygen content of gases - Google Patents

Electrochemical element for determining the oxygen content of gases

Info

Publication number
GB1367389A
GB1367389A GB1495872A GB1495872A GB1367389A GB 1367389 A GB1367389 A GB 1367389A GB 1495872 A GB1495872 A GB 1495872A GB 1495872 A GB1495872 A GB 1495872A GB 1367389 A GB1367389 A GB 1367389A
Authority
GB
United Kingdom
Prior art keywords
cell
march
gases
solid
heater
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.)
Expired
Application number
GB1495872A
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 GB1367389A publication Critical patent/GB1367389A/en
Expired 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
    • G01N27/4067—Means for heating or controlling the temperature of the solid electrolyte
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

1367389 Electro-chemical analysis ROBERT BOSCH GmbH 30 March 1972 [31 March 1971] 14958/72 Heading G1N A solid-electrolyte cell to screw through the wall of an I.C. engine exhaust pipe to determine oxygen in the exhaust gases is provided with a temperature controlled electric heater, and comprises a screwed steel cap 1 holding an insulator 3 e.g. of ceramic on which the cell 10 is mounted, and a perforated sheet steel protection cover 13. A Pt/PtRh temperature sensor 9 is attached to the base of the cell, and a rigid heating coil 5 surrounds the cell. A metal/metal oxide reference source 11 is contacted by an electrode 6. The reference mixture may be Ni/NiO; Cu/ Cu 2 O; Co/CoO; Fe 3 O 4 /Fe 2 O 3 or FeO/Fe 3 O 4 . The solid electrolyte may be stabilized zirconia or thoria, or mullite (3Al 2 O 3 .2SiO 2 ). The outer electrode may be platinum or tungsten carbide, or high-temperature resistant oxides such as Fe 3 O 4 . The thermocouple controls the heater through a transistor switching circuit Fig.2 (not shown).
GB1495872A 1971-03-31 1972-03-30 Electrochemical element for determining the oxygen content of gases Expired GB1367389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712115619 DE2115619A1 (en) 1971-03-31 1971-03-31 Sensor for determining the oxygen content in vehicle exhaust gases

Publications (1)

Publication Number Publication Date
GB1367389A true GB1367389A (en) 1974-09-18

Family

ID=5803403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1495872A Expired GB1367389A (en) 1971-03-31 1972-03-30 Electrochemical element for determining the oxygen content of gases

Country Status (7)

Country Link
AT (1) AT313650B (en)
CH (1) CH537018A (en)
DE (1) DE2115619A1 (en)
FR (1) FR2131365A5 (en)
GB (1) GB1367389A (en)
IT (1) IT950819B (en)
NL (1) NL7204359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110749638A (en) * 2019-09-23 2020-02-04 中国航空工业集团公司上海航空测控技术研究所 Zirconia-based micro oxygen concentration sensing element

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA995756A (en) * 1972-04-25 1976-08-24 William H. Mcintyre Gas measuring probe for industrial applications
DE2251167C3 (en) * 1972-10-19 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Device for exhaust gas detoxification from internal combustion engines
DE2606625C2 (en) * 1976-02-19 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Device for reducing harmful proportions of exhaust gases from internal combustion engines
JPS5950863B2 (en) * 1976-10-08 1984-12-11 日産自動車株式会社 Air-fuel ratio control method and device
JPS5348594A (en) * 1976-10-14 1978-05-02 Nissan Motor Oxygen sensor
US4129099A (en) * 1977-04-15 1978-12-12 General Motors Corporation Galvanic exhaust gas sensor with solid electrolyte
US4148211A (en) * 1978-03-22 1979-04-10 Beckman Instruments, Inc. Sampling system for engine exhaust gas analysis apparatus
US4384934A (en) * 1978-05-31 1983-05-24 The Flinders University Of South Australia Means for determining the partial pressure of oxygen in an atmosphere
DE2909201C2 (en) * 1979-03-09 1986-11-20 Robert Bosch Gmbh, 7000 Stuttgart Electrochemical measuring sensor for the determination of the oxygen content in gases, especially in exhaust gases from internal combustion engines
US4314996A (en) * 1979-04-04 1982-02-09 Matsushita Electric Industrial Company, Limited Oxygen sensor
FR2466016A1 (en) * 1979-09-21 1981-03-27 Thomson Csf Exhaust gas analyser for IC engine - has metallic cap protecting measuring cell screwed into exhaust assembly
DE2942494A1 (en) * 1979-10-20 1981-04-30 Bosch Gmbh Robert HEATABLE SENSOR FOR COMPONENTS OF GASES, ESPECIALLY IN EXHAUST GASES FROM COMBUSTION ENGINES
JPS5694257A (en) * 1979-12-28 1981-07-30 Nissan Motor Co Ltd Supporting structure of oxygen sensor element
DE3138547A1 (en) * 1981-09-28 1983-04-07 Bosch Gmbh Robert TEMPERATURE CONTROL DEVICE FOR AN OXYGEN SENSOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110749638A (en) * 2019-09-23 2020-02-04 中国航空工业集团公司上海航空测控技术研究所 Zirconia-based micro oxygen concentration sensing element
CN110749638B (en) * 2019-09-23 2024-04-09 中国航空工业集团公司上海航空测控技术研究所 Zirconia-based miniature oxygen concentration sensing element

Also Published As

Publication number Publication date
IT950819B (en) 1973-06-20
DE2115619A1 (en) 1972-10-12
FR2131365A5 (en) 1972-11-10
AT313650B (en) 1974-02-25
NL7204359A (en) 1972-10-03
CH537018A (en) 1973-05-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee