Heat exchange – Movable heating or cooling surface
Patent
1974-09-10
1977-01-04
Myhre, Charles J.
Heat exchange
Movable heating or cooling surface
62499, 60669, F28F 500, F22B 500, F25B 300
Patent
active
040007774
ABSTRACT:
A heat exchanger for a thermodynamic machine, such as a heat pump or an expansion motor, comprises two corotating and coaxial sections, namely an evaporator section and a condenser section, interconnected by conduits in a closed circuit for the passage of a vaporizable working fluid. Each rotary section comprises an annular collector, centered on the axis of rotation, and an array of axially extending tubes closed at one end, the open tube ends being partly obstructed by barriers serving to retain a pool of liquefied working fluid by centrifugal force in an outer peripheral sector of each tube; the pool on the condenser side overflows into the corresponding collectors to form a reservoir for the liquid. A pump continuously delivers liquid working fluid from that reservoir to a set of injector pipes in the evaporator tubes at a mass-flow rate exceeding the mass-flow rate of the evolving vapors to maintain a steady supply of liquid in the evaporator tubes as well as an overflow which, after temporary storage in the evaporator collector, is recirculated to the injector pipes for reintroduction into the evaporator tubes together with fresh liquid from the condenser-side reservoir.
REFERENCES:
patent: 1628391 (1927-05-01), Collingham
patent: 2811841 (1957-11-01), Grimshaw
patent: 2991979 (1961-07-01), Lincoln
patent: 3456454 (1969-07-01), Kantor
patent: 3773106 (1963-11-01), Levy
patent: 3850147 (1974-11-01), Doerner
patent: 3863454 (1975-02-01), Doerner
patent: 3866668 (1975-02-01), Doerner
patent: 3911694 (1975-10-01), Doerner
Dubno Herbert
Myhre Charles J.
Ross Karl F.
Streule, Jr. Theophil W.
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