Exhaust diffuser assembly with tunable velocity profile

Details Exhaust diffuser assembly with tunable velocity profile Exhaust diffuser assembly with tunable velocity profile

2007-09-25

2007-09-25

Koczo, Jr., Michael (Department: 3746)

Power plants

Reaction motor

Particular exhaust nozzle feature

C239S265190

Reexamination Certificate

active

10671290

ABSTRACT:
A turbine engine exhaust diffuser assembly having a tuneable exhaust velocity profile is disclosed. The assembly includes structure that generates a desired, tunable velocity profile within working fluid exiting the exhaust diffuser assembly. The exhaust assembly includes an concentric boundary sleeves that extend along a central axis and form an exhaust flowpath between them. A flow deflecting member disposed within the flowpath longitudinally divides the flowpath into a first region and a second region. The first region is characterized by a first predetermined velocity profile, and the second region is characterized by a second predetermined velocity profile. The second velocity profile is determined by at least one pre-selected dimension of the flow deflecting member. Methods of maximizing HRSG energy extraction capacity and extending HRSG lifespan are also disclosed.

REFERENCES:
patent: 3058302 (1962-10-01), Kuzyk
patent: 4284170 (1981-08-01), Larson et al.
patent: 4731991 (1988-03-01), Newton
patent: 4930308 (1990-06-01), Fage

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