United Technologies Corporation

Barry M Beckwith

Edward F Pietraszkiewicz

Lisa P O'Neill

Richard Silverman

Lisa O'Neill

A compressor diffuser for a gas turbine engine is provided with a dirt separator. The dirt separator ensures the air having moved downstream of the compressor section, and moving toward the combustion section, 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 provides a convenient surface for mounting a pressure sensor. In one embodiment, the dirt separator is mounted within the diffuser housing, and in a second embodiment, it is mounted immediately downstream.

Dirt separator for compressor diffuser in gas turbine engine

A gas turbine engine is provided with a dirt separator placed in a path of the radially outer cooling air flow, and includes a radially outer leg that defines a space to capture dirt or other impurities. An access port is provided in a turbine engine case in an area adjacent to the dirt separator. The access port has two openings at a tangent to the centerline of the gas turbine engine covered by access port covers which can be removed to allow a cleaning tool to have access through the access port.

Access port for dirt removal for gas turbine engine

A gas turbine engine is provided with a radially outer cooling air flow. A dirt separator is placed in the path of the radially outer cooling air flow, and includes a radially outer leg that defines a space to capture dirt or other impurities. A radially inner leg of the dirt separator includes open air flow passages to allow air to flow through the inner leg and downstream to cool various components within the gas turbine engine.

Dirt separator for gas turbine air supply

A gas turbine engine (10) is provided with a bypass conduit (56) for venting air (52) leaking past a rotating compressor seal (46). The leakage air (58) is returned to the working fluid flow path (64) upstream of this first turbine stage (32).

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Coventry, CT, United States of America

Barry M Beckwith