Heat exchanger

US20070235174A1Inactive Publication Date: 2007-10-11CATERPILLAR INC
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[0022] Reference will now be made in detail to the drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0023]FIG. 1 shows a heat exchanger 10. Heat exchanger 10 includes a stack assembly 20 made up of alternating layers of plates 30 and frames 40, a bottom cover 50, a top cover 60, and manifolds 82, 84, 86, and 88. Heat exchanger 10 is shown assembled along a stack direction 12 that is oriented vertically, but this is only for purposes of illustration.

[0024] Stack assembly 20 is made up of layers of plates 30 and frames 40. As seen in FIG. 1, plates 30 are flat plates formed of a thin sheet of material such as stainless steel, aluminum, brass, copper, bronze, or any other material with desired heat transfer characteristics. In addition, while plates 30 are depicted as rectangular, other shapes may also be used. In one exemplary embodiment plates 30 have dimensions of 279 mm long by 179 mm wide by 0.1 mm th...

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Abstract

A heat exchanger is provided. The heat exchanger includes a stack assembly with a plurality of plates and a plurality of frames arranged in an alternating stacked relationship with the plates along a predetermined direction. Each of the plates has a plurality of first openings and each of the frames has a plurality of second openings. A plurality of first and second fluid channels extends through the stack assembly along the predetermined direction and through the plurality of first and second openings. A first fluid flow path includes a first inlet channel in fluid communication with the plurality of first fluid channels, and a first outlet channel in fluid communication with the plurality of second fluid channels. A second fluid flow path is in thermal contact with the first fluid flow path and fluidically isolated from the first fluid flow path.

Description

CLAIM FOR PRIORITY [0001] The present application claims priority from U.S. Provisional Application Ser. No. 60 / 753,812, filed Dec. 23, 2005, which is fully incorporated herein.TECHNICAL FIELD [0002] The present disclosure is directed to a heat exchanger, and more particularly to a stacked plate heat exchanger and method of assembly thereof. BACKGROUND [0003] Plate-type heat exchangers are used for certain industrial applications in place of fin and tube or shell and tube type heat exchangers because they are less expensive and easier to make than most forms of heat exchangers. In one form of such plate-type heat exchangers, a plurality of primary surface plates are brazed together in a unitary structure with spacer frames located between adjacent plates and traversing a course adjacent to the plate peripheries. Flow of the two fluids involved in heat exchange is through alternate layers defined by the brazed plates. The space between the plates may be occupied by protuberances or f...

Claims

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Application Information

Patent Timeline
11 Oct 2007
Publication
US20070235174A1
IPC
F28F3/08; F28D9/00
CPC
F28D9/0075; F28D2021/0049; F28F13/003; F28F3/083; F28F9/0278; F28F3/044
Inventors
DAKHOUL, YOUSSEF M.