Dirt separator for compressor diffuser in gas turbine engine

摘要

A compressor diffuser (30) for a gas turbine engine (10) is provided with a dirt separator (42). The dirt separator (42) ensures the air having moved downstream of the compressor section (13), and moving toward the combustion section (14), is separated into a dirtier air flow path directly radially outwardly, and a cleaner airflow path directed radially inwardly. In this manner, the air reaching a combustion section, and the air being utilized for radially inner cooling air is relatively cleaner air. Further, the dirt separator (42) provides a convenient surface for mounting a pressure sensor (46). In one embodiment, the dirt separator (42) is mounted within the diffuser housing, and in a second embodiment (Figure 3), it is mounted immediately downstream.