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Tube design for an air-to-air aftercooler

A cooler and air technology, applied in the direction of mechanical equipment, tubular elements, indirect heat exchangers, etc., can solve the problems that aluminum brazed ATAAC tubes cannot provide long enough life and cannot generate turbulent flow

Inactive Publication Date: 2008-08-27
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the geometry and size of the depression, the tube described by Kiser does not create sufficient turbulence for some applications
Also, there is the issue that aluminum brazed ATAAC tubes may not provide long enough life for newer engines with higher charge air temperatures than older engines

Method used

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  • Tube design for an air-to-air aftercooler
  • Tube design for an air-to-air aftercooler
  • Tube design for an air-to-air aftercooler

Examples

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Embodiment Construction

[0020] Referring to FIG. 1 , there is shown a work machine 10 , such as an off-road truck. Work machine 10 may include a frame 12 and a dump body 14 pivotally mounted on frame 12 . An operator cab 16 may be mounted forward of the frame 12 and above the engine compartment 18 . Work machine 10 may be supported on the ground by a pair of front tires 20 (one shown) and a pair of rear tires 22 (one shown).

[0021] One or more engines 24 may be located within the engine compartment 18 . An example engine 24 is shown in FIG. 2 . Engine 24 may be used to provide power to drive components of work machine 10 via a mechanical or electric powertrain. As shown in FIG. 2 , engine 24 may include an internal combustion engine. The internal combustion engine 24 may include a turbocharger 26 for compressing intake air 38a into heated charge air 38b and an air-to-air aftercooler for cooling the heated charge air 38b prior to entering the intake manifold 32 (ATAAC)36. The various subcompon...

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Abstract

The present invention relates to an air-to-air aftercooler (36) includes tube (44) configured to direct a flow of charged air (38b). The tube includes at least one first protrusion (58) located on a first interior surface (60) of the tube, and a first longitudinal plane extends through the at least one first protrusion (58). The tube (44) also includes at least one second protrusion (62) located on a second interior surface (64) of the tube, and a second longitudinal plane extends through the at least one second protrusion (62). Furthermore, the f-ir-st longitudinal plane and the second longitudinal plane intersect.

Description

technical field [0001] This invention relates to air-to-air aftercoolers, and more particularly to flow tube designs for air-to-air aftercoolers. Background technique [0002] Construction and earthmoving equipment and many other work machines are commonly used in a wide variety of fields. Typically, work machines are powered by internal combustion engines. For optimum performance of a work machine, the engine must run as efficiently as possible. Since many work machines are powered by internal combustion engines, various methods have been developed for increasing the efficiency of internal combustion engines. One approach is to incorporate a turbocharger in the internal combustion engine. A turbocharger compresses air before it enters the engine's intake or combustion chamber. Supplying compressed air ("charge air") to the engine intake will result in more complete combustion. This results in reduced emissions, improved performance and a more efficient engine. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F13/12F28D1/053
CPCY02T10/146F28F13/12F28F3/04F28D2021/0082F28D1/05366F02B29/0456F28F1/40Y02T10/12
Inventor K·C·海因斯K·C·胡梅尔金培彤马九波
Owner CATERPILLAR INC