Actively cooled gas turbine sensor probe housing

摘要

An actively cooled turbine sensor assembly is designed to withstand post-combustion gas-path conditions of gas turbine engines. The housing forms part of a cooling system and includes an elongated tubular structure that may be inserted into the hot flow path. The distal end portion of the sensor assembly is contoured to minimize heat transfer. The housing also includes leading and trailing plenums for flowing cooling air through the housing and out through the distal end portion. Additional side cavities may also be provided for active cooling of the sensor and reducing possible heat conduction paths to the sensor.

主权项

1. A sensor assembly comprising:
an elongated housing including a proximal end and a distal end portion with a housing body disposed therebetween, the proximal end including an opening for accommodating a sensor, the sensor extending through the housing body to the distal end portion of the housing, the distal end portion of the housing including a port extending generally radially through a trailing side of the distal end portion, the distal end portion including a leading side disposed diametrically opposite the port and the trailing side of the distal end portion, and the leading side of the distal end portion curving towards and terminating at the trailing side of the distal end portion and distally of the port, the housing body includes a continuous sidewall with a leading plenum extending through the sidewall between the proximal end and the distal end portion of the housing, the leading plenum being disposed generally diametrically opposite the port, the housing body further includes a trailing plenum disposed generally diametrically opposite the leading plenum and extending through the sidewall between the proximal end of the housing and the port.