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US 2012/0237359 A1Published application
Cooled pusher propeller system
AssigneeUnited Technologies Corporation
InventorAlfred M. Stern
Life of this patent
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Abstract
A propulsion system and method includes an annular exhaust nozzle about an axis radially outboard of the annular cooling flow nozzle and ejecting an exhaust flow through an annular exhaust nozzle about an axis radially outboard of the annular cooling flow nozzle.
Claims10
A propulsion system comprising:
- a first row of propeller blades which rotate about an axis;
- an annular cooling flow nozzle about said axis, said annular cooling flow nozzle upstream of said first row of propeller blades;
- and
- an annular exhaust nozzle about said axis radially outboard of said annular cooling flow nozzle, said annular exhaust nozzle upstream of said first row of propeller blades.
1 more element
Dependencies are inferred from the claim text.