MECHANICAL DRIVE ARCHITECTURES WITH HYBRID-TYPE LOW-LOSS BEARINGS AND LOW-DENSITY MATERIALS

摘要

Mechanical drive architectures can include a gas turbine having a compressor section, a turbine section, and a combustor section. A load compressor is driven by the gas turbine. A rotor shaft extends through the gas turbine and the load compressor. The rotor shaft has rotating blades arranged in a circumferential array to define a plurality of moving blade rows in the gas turbine and the load compressor. At least one of the rotating blades in one of the gas turbine and the load compressor includes a low-density material. Bearings support the rotor shaft within the gas turbine and the load compressor, wherein at least one of the bearings is a hybrid-type low-loss bearing.

主权项

1. A mechanical drive architecture, comprising:
a gas turbine having a compressor section, a turbine section, and a combustor section operatively coupled to the compressor section and the turbine section; a load compressor driven by the gas turbine; a rotor shaft extending through the compressor section and the turbine section of the gas turbine and the load compressor; and a plurality of bearings to support the rotor shaft within the gas turbine and the load compressor, wherein at least one of the bearings is a hybrid-type low-loss bearing; and wherein the compressor section, the turbine section, and the load compressor each have a plurality of rotating components, at least one of the rotating components in at least one of the compressor section, the turbine section, and the load compressor including a low-density material.