Heat exchanger for a rocket engine

Details Heat exchanger for a rocket engine Heat exchanger for a rocket engine

2011-03-01

2011-03-01

Cuff, Michael (Department: 3741)

Power plants

Reaction motor

Including heat exchange means

C060S267000

Reexamination Certificate

active

07895823

ABSTRACT:
A cylindrical rocket engine exhaust duct has a liner that fits inside an outer jacket. The outer periphery of the liner has circumferentially spaced ribs defining a sinuous path for a fluid to be heated. The liner has a least one, preferably several, transverse fins with internal serpentine passages for carrying the fluid to be heated through the fins. The fluid to be heated is directed around the periphery of the liner (between the liner and the jacket), and consecutively through the separate fins, along sinuous and serpentine paths for heating of the fluid by heat transfer from the exhaust gas of the rocket engine.

REFERENCES:
patent: 2424795 (1947-07-01), Burns
patent: 3721093 (1973-03-01), Wolf et al.
patent: 5609034 (1997-03-01), Mita et al.
patent: 5765360 (1998-06-01), Schmidt et al.
patent: 2006/0124284 (2006-06-01), Ushio et al.
“Final Report, Development History of the 200,000- and 225,000-Pound-Thrust J-2 Rocket Engines,” Rocketdyne Engineering, Contract NAS8-19, Exhibit D, Paragraph B.2.b of Modification 126, Canoga Park, California, Dec. 13, 1996.
“J-2 Data Package,” Rocketdyne Engineering, pp. 1-114, publication date unknown.

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