Heat exchange – Structural installation
Patent
1989-07-10
1992-04-07
Ford, John
Heat exchange
Structural installation
1841041, 184 622, 60912, 55190, 55195, 55192, 210188, B01D 1900
Patent
active
051018853
ABSTRACT:
A hydraulic fluid reservoir for a hydraulic power unit includes a built-in air to fluid heat exchanger. The reservoir includes a tank having a front wall, a back wall, two side walls, a top and a floor. Situated on the inner side of the back wall and parallel thereto is a vertical baffle plate which forms a narrow channel between the baffle plate and the inner surface of the back wall. Situated on the outer side of the same wall is a fan for cooling the outer wall surface by blowing air thereon. When heated hydraulic fluid is forced to flow into the channel at its lower end and circulates upward through the channel, the fluid transfers its heat to the cooler inner back wall surface. When the fluid flows out of the heat exchanger channel it still may have air and/or vapor bubbles in the fluid, the upward momentum of the aerated fluid forces the fluid to the fluid surface where the bubbles burst when they come in contact with atmospheric pressure. Fixed to the lower end of the vertical baffle and situated perpendicularly thereto is a horizontal baffle situated horizontally with respect to the floor. The horizontal baffle defines a hot fluid storage chamber below the baffle and a cool and de-aerated storage chamber above the baffle from which the pump draws fluid.
REFERENCES:
patent: 2188801 (1940-01-01), Worth
patent: 2450960 (1948-10-01), Heintz
patent: 2478428 (1949-08-01), Shaw et al.
patent: 3976124 (1976-08-01), Brown
patent: 4074752 (1978-02-01), Schlosberg
patent: 4256031 (1981-03-01), Ryan
patent: 4746335 (1988-05-01), Reimann et al.
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