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US 6,746,207 B1Granted
Turboprop aircraft engine
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorsChristian Mundt, Dimitrie Negulescu, Marco Rose, Rene Spieweg
Life of this patent
Estimating the term…
Abstract
A turboprop aircraft engine includes at least one outer air intake 1 and at least one downstream inner duct system 2 for the delivery of air to a compressor, and the inner duct system 2 spirals around the center axis 3 of the engine.
Claims12
A turboprop aircraft engine with at least one outer air intake and at least one downstream inner duct system for the delivery of air to a compressor, wherein the inner duct system spirals around a center axis of the engine.
Dependencies are inferred from the claim text.