Sampling system for exhaust gas sensors and method of using same
First Claim
Patent Images
1. System for measuring gaseous constituents of a flowing gas mixture comprising:
- a gas flow control device;
at least one sensor which is in use in contact with the flowing gas mixture; and
at least one mixing device inserted in a flow of the gas mixture, the mixing device having a first end at which the at least one sensor is provided and a second end adapted to rest against a wall of a pipe through which the gas mixture can flow, and in use homogenizing the gas mixture to mixed gas before it is detected by the sensor.
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Abstract
A system is provided for measuring gaseous constituents of a flowing gas mixture, having a gas flow control device and at least one sensor which is in contact with the flowing gas mixture. At least one mixing device is placed in the flow of the gas mixture, which mixing device homogenizes the gas mixture to mixed gas before it is detected by the sensor. The system is adapted for use in exhaust gas systems of internal-combustion engines.
19 Citations
21 Claims
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1. System for measuring gaseous constituents of a flowing gas mixture comprising:
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a gas flow control device;
at least one sensor which is in use in contact with the flowing gas mixture; and
at least one mixing device inserted in a flow of the gas mixture, the mixing device having a first end at which the at least one sensor is provided and a second end adapted to rest against a wall of a pipe through which the gas mixture can flow, and in use homogenizing the gas mixture to mixed gas before it is detected by the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 21)
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18. A system for measuring gas constituents of an exhaust gas flow mixture from a combustion engine of a motor vehicle comprising:
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a gas flow control device;
at least one sensor which is in use in contact with the flowing gas mixture; and
at least one mixing device inserted in a flow of the gas mixture, the mixing device having a first end at which the at least one sensor is provided and a second end adapted to rest against a wall of a pipe through which the gas mixture can flow, and in use homogenizing the gas mixture to mixed gas before it is detected by the sensor. - View Dependent Claims (19, 20)
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Specification