Abstract: A gas turbine having internal cooling and method of operating the same includes the bypassing of a portion of the cool air from the compressor section into the turbine section along the suction side of the turbine blades while maintaining stable flow conditions in which there is relatively low intermixing between the cool airflow on the suction side and the hot gases on the pressure side.

Abstract: Energy is extracted from a high-temperature high-pressure working fluid by augmenting flow of the working fluid with a flow of gas having a molecular weight less than the fluid, utilizing some of the energy from the working fluid to induce addition and mixture of the gas in an ejector creating a flow of the mixed fluids having a greater mass and lower temperature than the initial flow of working fluid and supplying the mixed fluids to a turbine which converts the energy in the mixed fluids into mechanical energy. The exhausted fluids are separated and at least the augmenting gas is recycled to the ejector. The gas is selected from the group consisting of hydrogen, helium, nitrogen, air, water vapor, or an organic compound having a molecular weight less than the working fluid, and the working fluid is selected from the group consisting of an inorganic element, an inorganic compound, or a fluorocarbon.

Abstract: A centrifugal compressor is provided with means to centrifugally accelerate a gas stream and to simultaneously centrifugally accelerate a stream of dense small solid particles and discharging both streams into a vane free radial diffuser to form a composite flow in which kinetic energy from the particles is absorbed by the gas molecules while the heat of compression of the gas is absorbed by the solid particles, the composite flow then entering a centrifugal particle separator to give a clean high pressure gas for subsequent utilization.