초록 ▼

A gas turbine engine having a core gas generator engine for generating combustion gases, with an additional power turbine, an additional fan section, and a booster compressor. The power turbine includes two counter rotatable turbine blade rows which are alternately interdigitized and serve to rotate

A gas turbine engine having a core gas generator engine for generating combustion gases, with an additional power turbine, an additional fan section, and a booster compressor. The power turbine includes two counter rotatable turbine blade rows which are alternately interdigitized and serve to rotate counter rotating first and second drive shafts, respectively. The fan section also includes counter rotating spaced apart fan blade sections which are respectively connected to the first and second drive shafts. A booster compressor is axially positioned between the spaced apart fan sections. The booster compressor likewise includes first and second blade rows which are counter rotating alternately interdigitized and are likewise driven by the first and second drive shafts. The engine is supported from the two frames to permit the nacelle to be non-structural. The core engine is a modular unit so that it can be separable from the counter rotating turbine, fans and booster.

대표청구항 ▼

A gas turbine engine, comprising: a pair of spaced apart annular stationery frame supports; a core gas generator engine comprising an outer casing and including a core compressor, combustor, and turbine in serial flow relationship effective for generating combustion gases, said core engine with its

A gas turbine engine, comprising: a pair of spaced apart annular stationery frame supports; a core gas generator engine comprising an outer casing and including a core compressor, combustor, and turbine in serial flow relationship effective for generating combustion gases, said core engine with its outer casing supported by said frame supports; a power turbine aft of said core engine, including first and second counter rotatable turbine blade rows effective for rotating first and second drive shafts, respectively, said power turbine supported by one of said frame supports; a fan section forward of said core section including a first fan blade row connected to said first drive shaft and a second fan blade row connected to said second drive shaft, said fan section supported by one of said frame supports; a booster compressor including a first compressor blade row connected to said first drive shaft and a second compressor row connected to said second drive shaft and supported by one of said frame supports, and a non structure supporting outer annular nacelle disposed coaxially about a center line of said engine and outwardly of said casing.