Turbofan gas turbine engine

Details Turbofan gas turbine engine Turbofan gas turbine engine

1987-07-31

1988-06-21

Stout, Donald E.

Power plants

Reaction motor

Interrelated reaction motors

60 39162, 60268, 416129, F02K 3072

Patent

active

047518162

ABSTRACT:
An improved arrangement of a turbofan engine comprises a core engine, an upstream fan, a downstream fan and a booster compressor. The upstream fan and downstream fan are both positioned upstream of the core engine, and are arranged to be driven in opposite directions by a gear assembly. The gear assembly is positioned axially between the upstream fan and downstream fan. The booster compressor is positioned upstream of the upstream fan and downstream fan, and comprises a first rotor carrying blades and a second rotor carrying blades. The first rotor is driven with the upstream fan and the second rotor is driven by the turbine of the core engine in opposite direction to the first rotor.

REFERENCES:
patent: 3448582 (1969-06-01), Bracey et al.
patent: 3729957 (1973-05-01), Petrie et al.
patent: 3830058 (1974-08-01), Ainsworth
patent: 3861139 (1975-01-01), Jones

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