Hybrid inlet

Power plants – Reaction motor – Including mechanical air compressor or air flow inducing means

Reexamination Certificate

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Details

C137S015100, C244S05300R

Reexamination Certificate

active

06990798

ABSTRACT:
A turboprop powerplant with at least a compressor having a forward compressor inlet and a shaft extending axially through the compressor and having a shaft axis, an inlet duct encircling the shaft passing therethrough, the inlet duct having an aft end in gas communication with the compressor inlet and a forward end having at least two branches each with an inlet orifice, each inlet orifice having a centroid in a radial plane through and transverse to the shaft axis, the centroids and shaft axis defining an angle less than 180°.

REFERENCES:
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patent: 4617028 (1986-10-01), Ray et al.
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patent: 4930725 (1990-06-01), Thompson et al.
patent: 5284012 (1994-02-01), Laborie et al.
patent: 5345760 (1994-09-01), Giffin, III
patent: 5483791 (1996-01-01), Kotwal et al.
patent: 5725180 (1998-03-01), Chamay et al.
patent: 0 000754 (1980-12-01), None
patent: 0 385 294 (1992-04-01), None

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