초록 ▼

A gas turbine engine ducted to have the air pass sequentially through a single stage axial-flow compressor, a single-stage hybrid axial-radial centrifugal compressor, a burner, an inward flow radial turbine, an axial-flow, high-pressure turbine, and then exit nozzles. The axial compressor and axial

A gas turbine engine ducted to have the air pass sequentially through a single stage axial-flow compressor, a single-stage hybrid axial-radial centrifugal compressor, a burner, an inward flow radial turbine, an axial-flow, high-pressure turbine, and then exit nozzles. The axial compressor and axial turbine are on a common core shaft. The centrifugal compressor and the radial turbine are on a common porous hub and form an integral, modular unit in which forces on the radial turbine blades drive the centrifugal compressor. The porous common hub permits air to transpire from the compressor to the turbine, serving to cool the turbine. Fuel is burned in annular, “folded-comma”shaped burners with multiple fuel-injection and ignition zones (two-stage combustion).

대표청구항 ▼

A core gas turbine engine having enhanced efficiency relative to its weight said engine including an inlet compressor, an outlet turbine, gas ducting means running between said inlet compressor and said outlet turbine, an outwardly centrifugal compressor, burners, and an inwardly radial turbine posi

A core gas turbine engine having enhanced efficiency relative to its weight said engine including an inlet compressor, an outlet turbine, gas ducting means running between said inlet compressor and said outlet turbine, an outwardly centrifugal compressor, burners, and an inwardly radial turbine positioned in said gas ducting means between said inlet compressor and said outlet turbine, said outwardly centrifugal compressor and said inwardly radial turbine being mounted on a common hub such that their faces form an integral interface, whereby said inwardly radial turbine will drive said outwardly centrifugal compressor at a common speed of rotation, said hub being rotatable independently of said inlet compressor and said outlet turbine, and said hub being made of porous material whereby air in the boundary layer of said centrifugal compressor can seep from said centrifugal compressor to said inwardly radial turbine and cool same.