Appeal No. 2003-0470
Application 09/671,870
specification goes on to note in the paragraph bridging
pages 7 and 8 that
[t]hose skilled in the art will under-
stand, however, that the configuration of
the rotor 30 (e.g., the quantity of the
blades 40, the shape of the blades 40 and
the rotational speed of the rotor 30)
must allow enough time and room for the
entrained portion 18a of the secondary
flow 18 to move into the low pressure
voids 34.
In the context of the embodiment seen in Figure
3A, the specification (page 10) notes that the voids (34)
entrain a portion of the fan flow (82) (i.e., the secondary
flow), causing the engine core flow (80) and the fan flow
(82) to mix and produce a mixed flow (86) having a rela-
tively higher flow rate and a relatively lower velocity than
the exhaust flow (80). The specification goes on to note
that such operation of the “unsteady flow ejector” (10)
attenuates the noise produced by operation of the turbojet
engine core (64). The specification (page 6) indicates that
essentially, the low static pressure of each of the voids
4
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