Compressor discharge temperature sensing system
AssigneeGeneral Electric Company
InventorMichael McNulty
Life of this patent
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Abstract
A compressor discharge temperature sensing system senses compressor discharge temperature for a compressor located within a housing. A sensor mounted external to the flow path receives high pressure air discharged from the compressor. The high pressure air flows past at least one thermocouple in the housing and through a purge line. The thermocouple measures the high pressure air temperature and the high pressure air is then returned to the flow path.
Claims10
A compressor discharge temperature sensing system comprising:
- a compressor located within a casing and having a compressor air flow path;
- a sensor contained in a sensor housing and mounted external to the flow path for extracting air external to the compressor casing;
- at least one thermocouple associated with said sensor housing for measuring the air temperature of the extracted air;
- and
- a purge line associated with an outlet of the sensor for venting the air to a sink pressure to be used as cooling and purge flow.
A compressor discharge temperature sensing system comprising:
- a compressor having a compressor casing and further having compressor discharge via a flow path, the compressor discharge including high pressure air;
- a sensor contained in a sensor housing and mounted external to the flow path for receiving the high pressure air;
- at least one thermocouple mounted in the sensor housing for measuring the high pressure air temperature;
- a purge line located in an associated relation with the sensor to receive the high pressure air;
- means for returning the high pressure air to the flow path;
- and
- a purge line connected to an outlet of the sensor for venting the air to a sink pressure to be used as cooling and purge flow.
A method for sensing compressor discharge temperature comprising the steps of:
- providing a compressor located within a casing and having compressor discharge via a flow path, the compressor discharge including high pressure air;
- providing a sensor housed in a sensor housing and mounted external to the flow path for receiving the high pressure air;
- flowing the high pressure air past at least one thermocouple contained in the sensor housing for measuring the high pressure air temperature;
- connecting a purge line to an outlet of the sensor for venting the air to a sink pressure to be used as cooling and purge flow;
- and
- returning the high pressure air to the flow path.
Dependencies are inferred from the claim text.