Heat exchange – With vehicle feature
Reexamination Certificate
2005-04-25
2008-12-02
Ford, John K (Department: 3744)
Heat exchange
With vehicle feature
C165S047000, C165S119000, C165S132000, C165S169000, C165S916000, C210S167060, C210S175000, C210S186000, C210S167320, C210S167070, C184S104100, C060S456000, C060S912000, C123S1960AB
Reexamination Certificate
active
07458414
ABSTRACT:
Improvement, in hydraulic systems, such as for vehicle transmissions and the like, in the form of a hydraulic reservoir with integrated heat exchanger having fluid supply/return and fluid return ports, including a central section, having inner and outer shell portions with a first gap therebetween, the outer shell being provided with a plurality of radially-spaced, external cooling fins, longitudinally-directed for the length of the central section; the ends of the latter being closed off via respective bottom and top cap portions, thereby defining a central fluid cavity, the top cap portion having spaced outer and inner cap portions, with a second gap therebetween, with a fluid inlet port, in the outer cap portion, directing incoming fluid from the second gap into and through the entire length of the first gap before entering the central fluid cavity, thereby maximizing heat transfer from the fluid via the plurality of cooling fins.
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“Cumulo Hydrostatic Drive—a Vehicle Drive with Secondary Control”, authored by Conny Hugosson, presented at The Third Scandinavian International Conference on Fluid Power on May 25-26, 1993, in Sweden.
Ford John K
Hunter Christopher H.
Parker-Hannifin Corporation
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