Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides an improved cooling circuit for a trailing edge of a turbine blade. The cooling circuit includes an inlet passage that receives a airflow and distributes the airflow through a feed passage. The feed passage primarily includes trip strips, at least one barrier including cross-over holes, teardrop shaped protrusions, and pockets disposed along a trailing edge. The geometry and positioning of both the cross-over holes and teardrop shaped protrusions downstream of the cross-over holes have been optimized to maximize cooling efficiency and reduce airflow. An improved transition between the inlet passage and the feed passage is also provided, which is arcuate and allows the airflow to maintain attachment and flow unimpeded from the inlet passage to the feed passage. The geometry of the pockets disposed along the trailing edge is optimized to improve cooling.

Abstract: The present invention provides a turbine blade having a revised under-platform structure including a unique coating combination that reduces mechanical stress factors within the turbine blade. The turbine blade includes a platform with an airfoil extending upwardly from the airfoil and a root portion extending downwardly from the platform. Two suction side tabs extend a first distance outward from a suction side of the root potion. Two pressure side tabs extend outward from a pressure side of the root portion. One of the two pressure side tabs extends outward a distance similar to the first distance, however, the other of the two pressure side tabs extends outward a distance much smaller than the first distance, which reduces stresses acting on the turbine blade. In addition, a plurality of coatings are systematically applied to the turbine blade to further reduce mechanical stress factors and improve cooling.

Abstract: A system according to invention principles automatically calculates anatomical feature (e.g., tumor, body part, organ) size electronically to provide a clinician with useful information when assessing the tumor response during treatment. A system for monitoring change in patient anatomical features, includes a volumetric analyzer for automatically analyzing data derived from an imaging unit that represents a three dimensional view of a patient anatomical feature in order to determine spatial characteristics of the anatomical feature. A comparison processor automatically compares a first set of spatial characteristics of a patient anatomical feature derived at a first time with a second set of corresponding spatial characteristics of the patient anatomical feature derived at a subsequent second time, to provide change data representing change in spatial characteristics of the patient anatomical feature over a period of time. A repository stores change data for access by a user.

Abstract: A system provides a comprehensive overview of patient health problems and treatments over an extended period of time in a graphical representation of diagnostic procedures, sites of disease and interventions. A user interface system for presenting patient medical information, includes at least one medical data repository including medical data identifying treatments previously received by a patient. A display processor initiates generation of data representing a graphical image of at least a portion of human anatomy. The graphical image includes multiple data items identifying the treatments previously received by the patient and corresponding user selectable links to associated treatment medical information in the at least one medical data repository.