Asymmetric turboprop booster

Details Asymmetric turboprop booster Asymmetric turboprop booster

1998-01-09

2000-03-28

Kim, Ted

Power plants

Reaction motor

Interrelated reaction motors

602263, 60262, F02K 302

Patent

active

060415894

ABSTRACT:
A booster-compressor assembly for supercharging air into a core engine that powers propellers of a turboprop aircraft engine includes an asymmetric annular booster duct aft of the propellers and disposed about a centerline with at least one symmetric annular rotor section with a row of rotor blades disposed therein. The booster duct has a booster flowpath that includes a core flowpath to a core engine inlet and a bypass flowpath around the core engine inlet and the flowpaths circumscribed about the centerline and not symmetric with respect to each other. A low bypass flow rate means sets the airflow through the bypass flowpath such that a bypass flow rate per unit area through the bypass flowpath is substantially less than a core flow rate per unit area through the core flowpath.

REFERENCES:
patent: 3070131 (1962-12-01), Wheatley
patent: 4446696 (1984-05-01), Sargisson et al.
patent: 4892269 (1990-01-01), Greco et al.
patent: 5694768 (1997-12-01), Johnson et al.
patent: 5725180 (1998-03-01), Chamay et al.

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