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Heat exchanger having an inlet distributor and outlet collector

a technology of inlet distributor and collector, which is applied in the direction of indirect heat exchangers, lighting and heating apparatus, transportation and packaging, etc., can solve the problems of poor refrigerant distribution throughout the refrigerant tube, uneven temperature distribution over the core, and the length of the inlet and outlet headers, so as to achieve less sensitive to criteria

Inactive Publication Date: 2011-10-06
DELPHI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]The modified automotive style heat exchanger assembly having both a distributor tube and a collector tube together with the cooperating features of the distributor and collector tubes has the advantage of being less sensitive to criteria for archiving uniform refrigerant distribution. A distributor tube and a collector tube designed for one particular application may be used for other applications having different operating parameters without having to redesign or optimize the distributor tube or collector tube.

Problems solved by technology

Momentum and gravity effects due to the large mass differences between the liquid and gas phases can result in separation of the phases within the inlet header and cause poor refrigerant distribution throughout the refrigerant tubes.
Poor refrigerant distribution degrades evaporator performance and can result in uneven temperature distribution over the core.
The increased in scale of the automotive heat exchanger for residential and commercial applications dramatically increases the lengths of the inlet and outlet headers, which may result in increased refrigerant mal-distribution through the core of the heat exchanger.

Method used

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  • Heat exchanger having an inlet distributor and outlet collector
  • Heat exchanger having an inlet distributor and outlet collector
  • Heat exchanger having an inlet distributor and outlet collector

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Embodiment Construction

[0020]The present invention will be further described with reference to the accompanying drawings, wherein like numerals indicate corresponding parts throughout the views.

[0021]Shown in FIG. 1 is a prior art modified automotive style heat exchanger assembly 10 modified for stationary use in a residential or commercial setting. The heat exchanger assembly 10 includes an inlet header 12 in hydraulic communication with an outlet header 14 via a plurality of extruded multi-port refrigerant tubes16. Interconnecting the refrigerant tubes 16 are corrugated fins 18 for enhanced heat transfer and increased structural integrity of the heat exchanger assembly 10. The plurality of refrigerant tubes 16 together with the fins 18 defines the core 30 of the heat exchanger assembly 10. Disposed within the inlet header 12 is a distributor tube 20 to assist in the even distribution of refrigerant within the inlet header 12 with the objective of evenly distributing the refrigerant through the plurality...

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PUM

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Abstract

An improved heat exchanger assembly having an inlet header in hydraulic communication with an outlet header via a plurality of multi-channel flat refrigerant tubes, in which the multi-channel flat refrigerant tubes are substantially perpendicular to the headers. Interconnecting the refrigerant tubes are corrugated fins. The plurality of refrigerant tubes together with the fins defines the core of the heat exchanger assembly. The heat exchanger assembly also includes a distributor tube disposed in the inlet header cavity and a collector tube disposed in the outlet header cavity. The distributor tube and collector tube have cooperating features for archiving uniform refrigerant distribution through the refrigerant tubes.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Patent Application Ser. No. 61 / 320,014 for an IMPROVED HEAT EXCHANGER HAVING AN INLET DISTRIBUTOR AND OUTLET COLLECTOR FOR IMPROVED REFRIGERANT DISTRIBUTION, filed on Apr. 1, 2010, which is hereby incorporated by reference in its entirety.TECHNICAL FIELD OF INVENTION[0002]The invention relates to a heat exchanger having a plurality of refrigerant tubes extending from an inlet header to an outlet header for use with a two phase refrigerant; more particularly, to a heat exchanger having an inlet distributor disposed in the inlet header together with an outlet collector disposed in the outlet header for uniform refrigerant distribution through the core of the heat exchanger.BACKGROUND OF INVENTION[0003]Residential and commercial air conditioning and heat pump systems are known to employ modified automotive heat exchangers because of the automotive heat exchangers' high heat transfer effi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F28F9/02
CPCF28F9/0273F28D1/05383B60H1/3227
Inventor WINTERSTEEN, DOUGLAS C.SAMUELSON, DAVID E.JOHNSON, RUSSELL S.PAUTLER, DONALD R.XIA, YANPING
Owner DELPHI TECH INC
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