Abstract 1. ELECTRO-CHEMICAL OXYGEN SENSOR, PARTICULARLY FOR OXYGEN CONTENT DETERMINATION IN THE HOT EXHAUST GASES OF INTERNAL COMBUSTION ENGINES, WHICH IS AN OXYGEN CONCENTRATION CELL COMPRISING A TUBE OF ION CONDUCTIVE SOLID ELECTROLYTE MATERIAL (10) CLOSED AT ONE END AND HAVING A THICKENED COLAR (11) AT ITS OTHER, OPEN END; AN ELECTRON CONDUCTIVE LAYER (12) LOCATED AT THE OUTER SURFACE OF THE ELECTROLYTE MATERIAL AND EXTENDING THEREOVER INTO THE REGION OF THE COLLAR (11); AN INNER ELECTRODE (13) IN THE HOLLOW INTERIOR OF THE TUBE OF ELECTROLYTE MATERIAL; A METAL SOCKET (14) AND RETAINING MEANS (15) FORMED THEREIN; AN ELECTRICALLY CONDUCTIVE HEAT RESISTANT SEALING MASS WHICH MAINTAINS ITS ELECTRICAL CONDUCTIVITY AND SEALING CHARACTERISTICS AT OPERATING TEMPERATURES OF BETWEEN ABOUT 350*C AND 450*C (16) CONNECTING THE COLLAR (11) OF THE ELECTROLYTE TUBE (10) TO THE SOCKET, SAID SEALING MASS FILLTING THE SPACE BETWEEN THE TUBE AND THE SOCKET TO FORM A GAS-TIGHT SEAL AND AN ELECTRICAL CONTACT BETWEEN THE CONDUCTIVE LAYER (12) AND THE SOCKET (14).
ELECTRO-CHEMICAL OXYGEN SENSOR, PARTICULARLY FOR OXYGEN CONTENT DETERMINATION IN THE HOT EXHAUST GASES OF INTERNAL COMBUSTION ENGINES, WHICH IS AN OXYGEN CONCENTRATION CELL COMPRISING A TUBE OF ION CONDUCTIVE SOLID ELECTROLYTE MATERIAL (10) CLOSED AT ONE END AND HAVING A THICKENED COLAR (11) AT ITS OTHER, OPEN END; AN ELECTRON CONDUCTIVE LAYER (12) LOCATED AT THE OUTER SURFACE OF THE ELECTROLYTE MATERIAL AND EXTENDING THEREOVER INTO THE REGION OF THE COLLAR (11); AN INNER ELECTRODE (13) IN THE HOLLOW INTERIOR OF THE TUBE OF ELECTROLYTE MATERIAL; A METAL SOCKET (14) AND RETAINING MEANS (15) FORMED THEREIN; AN ELECTRICALLY CONDUCTIVE HEAT RESISTANT SEALING MASS WHICH MAINTAINS ITS ELECTRICAL CONDUCTIVITY AND SEALING CHARACTERISTICS AT OPERATING TEMPERATURES OF BETWEEN ABOUT 350*C AND 450*C (16) CONNECTING THE COLLAR (11) OF THE ELECTROLYTE TUBE (10) TO THE SOCKET, SAID SEALING MASS FILLTING THE SPACE BETWEEN THE TUBE AND THE SOCKET TO FORM A GAS-TIGHT SEAL AND AN ELECTRICAL CONTACT BETWEEN THE CONDUCTIVE LAYER (12) AND THE SOCKET (14).
Claim 2
Dependent Claim
163 words
ELECTRO-CHEMICAL OXYGEN SENSOR, PARTICULARLY FOR OXYGEN CONTENT DETERMINATION IN THE HOT EXHAUST GASES OF INTERNAL COMBUSTION ENGINES, WHICH IS AN OXYGEN CONCENTRATION CELL COMPRISING A TUBE OF ION CONDUCTIVE SOLID ELECTROLYTE MATERIAL (10) CLOSED AT ONE END AND HAVING A THICKENED COLAR (11) AT ITS OTHER, OPEN END; AN ELECTRON CONDUCTIVE LAYER (12) LOCATED AT THE OUTER SURFACE OF THE ELECTROLYTE MATERIAL AND EXTENDING THEREOVER INTO THE REGION OF THE COLLAR (11); AN INNER ELECTRODE (13) IN THE HOLLOW INTERIOR OF THE TUBE OF ELECTROLYTE MATERIAL; A METAL SOCKET (14) AND RETAINING MEANS (15) FORMED THEREIN; AN ELECTRICALLY CONDUCTIVE HEAT RESISTANT SEALING MASS WHICH MAINTAINS ITS ELECTRICAL CONDUCTIVITY AND SEALING CHARACTERISTICS AT OPERATING TEMPERATURES OF BETWEEN ABOUT 350*C AND 450*C (16) CONNECTING THE COLLAR (11) OF THE ELECTROLYTE TUBE (10) TO THE SOCKET, SAID SEALING MASS FILLTING THE SPACE BETWEEN THE TUBE AND THE SOCKET TO FORM A GAS-TIGHT SEAL AND AN ELECTRICAL CONTACT BETWEEN THE CONDUCTIVE LAYER (12) AND THE SOCKET (14).