Heat exchanger arrangement

Details Heat exchanger arrangement Heat exchanger arrangement

2007-04-18

2010-10-12

Cuff, Michael (Department: 3741)

Power plants

Reaction motor

Including heat exchange means

C060S226100, C060S267000, C060S782000, C060S785000, C060S806000

Reexamination Certificate

active

07810312

ABSTRACT:
In certain circumstances recovery of a fluid flow presented through a heat exchanger into another flow can create problems with respect to drag and loss of thrust. In gas turbine engines heat exchangers are utilized for providing cooling of other flows such as in relation to compressor air taken from the core of the engine and utilized for cabin ventilation and de-icing functions. By providing an outlet valve through an outlet duct in a wall of a housing the exhaust fluid flow from the heat exchanger can be returned to the by-pass flow with reduced drag effects whilst recovering thrust. The valve may take the form of a flap displaceable into the by-pass flow before an exit plan to create a reduction in static pressure drawing fluid flow through the heat exchanger.

REFERENCES:
patent: 4254618 (1981-03-01), Elovic
patent: 4791782 (1988-12-01), Seed
patent: 5351476 (1994-10-01), Laborie
patent: 5438823 (1995-08-01), Loxley et al.
patent: 5729969 (1998-03-01), Porte
patent: 2 208 702 (1989-04-01), None
patent: 2 224 080 (1990-04-01), None

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