Heat exchanger

Inactive Publication Date: 2007-10-11
CATERPILLAR INC
View PDF21 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one problem that arises with some designs is that the pressure loss across the heat exchanger increases.
While the configuration of the '273 patent attempts to decrease pressure losses, it results in an increased manifold volume or supply conduit volume to heat exchanger volume ratio.
For applications requiring a compact construction, this may prove to be unacceptable.
In addition, there may be non-uniform heat exchange such that layers farthest from the supply conduit inlets may receive less flow than layers closest to the supply conduit inlets.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat exchanger
  • Heat exchanger
  • Heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F28F3/08F28D9/00
CPCF28D9/0075F28D2021/0049F28F13/003F28F3/083F28F9/0278F28F3/044
InventorDAKHOUL, YOUSSEF M.
OwnerCATERPILLAR INC