Claims
- 1. In an oxygen partial pressure measuring device for determining oxygen partial pressure in exhaust gases, the device comprising a cylindrical body and an oxygen concentration cell of oxygen ion conductive solid electrolyte therein, said device to be inserted into the exhaust gas stream, the improvement comprising a monolithic structure, which is formed with a multiplicity of substantially parallel channels through which said exhaust gases are burnt and become under the equilibrium condition, accommodated within said cylindrical body and so located therein that exhaust gas to be measured reaches said oxygen concentration cell after it has passed through said monolithic structure.
- 2. A device as set forth in claim 1, wherein said monolithic structure has a catalytic action which oxidizes unburnt components in the exhaust gas to be measured contacting said monolithic structure.
- 3. A device as set forth in claim 2, wherein said catalyst consists of a ceramic catalyst carrier and a catalytic material carried thereby.
- 4. A device as set forth in claim 2, wherein said catalyst is of ceramics having a catalytic action.
- 5. A device as set forth in claim 2, wherein said catalyst is of ceramics having a catalytic material uniformly distributed therein.
- 6. A device as set forth in claim 1, wherein a space is provided between said oxygen concentration cell and said monolithic structure.
- 7. A device as set forth in claim 6, wherein a further space is provided between said one end of said cylindrical body and said monolithic structure.
Priority Claims (1)
Number |
Date |
Country |
Kind |
51/129335 |
Oct 1976 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 846,185 filed Oct. 26, 1977 and now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2416629 |
Oct 1975 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
846185 |
Oct 1977 |
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