US20110139425A1 - Two row bent evaporator - Google Patents

Two row bent evaporator Download PDF

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Publication number
US20110139425A1
US20110139425A1 US12/637,814 US63781409A US2011139425A1 US 20110139425 A1 US20110139425 A1 US 20110139425A1 US 63781409 A US63781409 A US 63781409A US 2011139425 A1 US2011139425 A1 US 2011139425A1
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US
United States
Prior art keywords
leg
bend
manifolds
extending
legs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/637,814
Inventor
Henry E. Beamer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to US12/637,814 priority Critical patent/US20110139425A1/en
Assigned to DELPHI TECHNOLOGIES, INC. reassignment DELPHI TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BEAMER, HENRY E.
Publication of US20110139425A1 publication Critical patent/US20110139425A1/en
Abandoned legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • F28D1/0476Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00Removing ice or water from heat-exchange apparatus
    • F28F17/005Means for draining condensates from heat exchangers, e.g. from evaporators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins

Abstract

A core (26) extends through a circular bend (28) greater than 180 degrees to define a first leg (30) between the bend (28) and an inlet manifold (22) and a second leg (32) between the bend (28) and an outlet manifold (24). The legs (30, 32) are disposed in converging relationship from the bend (28) towards the manifolds (22, 24) to define an acute angle (α) between the legs (30, 32). The manifolds (22, 24) are aligned in juxtaposed relationship along an alignment axis (Y) and the legs (30, 32) are disposed in angular relationship to a reference axis (X) to define first and second drainage angles (Θ1, Θ2) between the corresponding legs (30, 32) and the reference axis (X). The second drainage angle (Θ2) is >10 degrees and the first drainage angle is (Θ1)>20 degrees and the acute angle (α) is >10 degrees for draining condensate along the legs (30, 32) toward the juxtaposed manifolds (22, 24) to establish a common drainage point of the condensate.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The subject invention relates to a heat exchanger assembly including a core extending through a bend for greater heat transfer capacity.
  • 2. Description of the Prior Art
  • The heat exchanger assemblies to which the subject invention pertains are systems which include overlapping or double flows of working fluid to improve performance while minimizing space requirements. The design and manufacture of such a heat exchanger normally includes a first heat exchanger in fluid communication with a second heat exchanger. However, complex and costly communication manifolds are required to establish fluid communication between the first and second heat exchangers while optimally containing the pressures normally occurring in such systems. As a result, it is common to bend the core of a heat exchanger to provide the functionality of a heat exchanger with overlapping or double flows of working fluid while eliminating the complexity and cost limitations of conventional communication manifolds.
  • One such heat exchanger assembly is disclosed in U.S. Pat. No. 5,341,870 to Hughes, et al, wherein the heat exchanger assembly includes an inlet manifold and an outlet manifold and a core extending between the manifolds for conveying a working fluid from the inlet manifold to the outlet manifold. The core extends through a bend to define a first leg between the bend and the inlet manifold and a second leg between the bend and the outlet manifold for arranging the heat exchanger in a U or V shape.
  • Although the prior art heat exchangers are able to establish overlapping or double flows of working fluid without the use of conventional communication manifolds, there remains a need for a heat exchanger design which improves condensate drainage.
  • SUMMARY OF THE INVENTION
  • The invention provides for a bend extending through a circular bend greater than 180 degrees for disposing the legs in converging relationship from the bend towards the manifolds to define an acute angle α between the legs.
  • One advantage of the invention is that the heat exchanger assembly can be inclined in both horizontal and vertical airflow systems for increasing the heat transfer while also providing positive drainage toward both manifolds. In addition, the vertical juxtaposition of the manifolds provides for a common drainage point of the condensate at the manifolds.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Other advantages of the present invention will be readily appreciated, as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
  • FIG. 1 is a perspective view of the heat exchanger assembly;
  • FIG. 2 is an edge view of the heat exchanger assembly disposed in a vertical airflow system and illustrating the first and second legs disposed in angular relationship to a reference or horizontal axis X and the inlet and outlet manifolds aligned in juxtaposed relationship along an alignment or vertical axis Y; and
  • FIG. 3 is an edge view of the heat exchanger assembly disposed in a horizontal airflow system.
  • DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
  • Referring to the Figures, wherein like numerals indicate corresponding parts throughout the several views, the invention comprises a heat exchanger assembly 20 generally shown including an inlet manifold 22 and an outlet manifold 24 being cylindrical and extending in spaced and parallel relationship to one another. A core 26 extends between the manifolds 22, 24 for conveying a working fluid from the inlet manifold 22 to the outlet manifold 24, and includes a plurality of tubes 28 extending in spaced and parallel relationship to one another between the manifolds 22, 24. The core 26 also includes a plurality of air fins 30 extending back and forth between adjacent ones of the tubes 28 to present a serpentine pattern extending between the adjacent tubes 28. The inlet manifold 22 defines an inlet port 32 for receiving the working fluid, and the outlet manifold 24 defines an outlet port 34 for dispensing the working fluid.
  • The core 26 extends through a bend 36 to define a first leg 38 having a first length L1 between the bend 36 and the inlet manifold 22 and a second leg 40 having a second length L2 between the bend 36 and the outlet manifold 24. As shown in FIGS. 2 and 3, the inlet and outlet manifolds 22, 24 are aligned on an alignment or vertical axis Y for receiving the flow of air in a transverse direction successively through the second leg 40 and the first leg 38. Typically the bend 36 will be placed at or close to the midpoint of the core 26 between the manifolds 22, 24, but the bend 36 may be offset as required. In the preferred embodiment, the bend 36 extends through a circular bend 36 greater than 180 degrees for disposing the legs 38, 40 in converging relationship from the bend 36 towards the manifolds 22, 24 to define an acute angle α between the legs 38, 40.
  • As shown in FIGS. 2 and 3, the first and second legs 38, 40 are disposed in angular relationship to a reference or horizontal axis X extending perpendicular to the alignment axis Y to define a first drainage angle Θ1 between the first leg 38 and the reference axis X and a second drainage angle Θ2 between the second leg 40 and the reference axis X for draining condensate along the legs 38, 40 toward the manifolds 22, 24. Accordingly, the acute angle α between the legs 38, 40 is equal to the difference between the drainage angles (Θ21). As shown in FIGS. 2 and 3, the heat exchanger assembly 20 can accommodate the needs of both vertical and horizontal airflow systems while positioning the inlet and outlet manifolds 22, 24 close together to facilitate simple system plumbing and condensate drainage from the manifolds 22, 24.
  • In the preferred embodiment, the second drainage angle Θ2 is equal to or greater than 10 degrees and the first drainage angle Θ1 is equal to or greater than 20 degrees and the acute angle α is equal to or greater than 10 degrees for improving condensate drainage along the tubes 28 toward the manifolds 22, 24. In addition, the first length L1 of the first leg 38 is less than the second length L2 of the second leg 40 for aligning the manifolds 22, 24 in juxtaposed relationship along the alignment axis Y for establishing a common draining point of the condensate at the juxtaposed manifolds 22, 24.
  • While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing form the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (6)

1. A heat exchanger assembly comprising;
an inlet manifold and an outlet manifold,
a core extending between said manifolds for conveying a working fluid from said inlet manifold to said outlet manifold,
said core extending through a bend to define a first leg between said bend and said inlet manifold and a second leg between said bend and said outlet manifold, and
said bend extending through a circular bend greater than 180 degrees for disposing said legs in converging relationship from said bend towards said manifolds to define an acute angle α between said legs.
2. An assembly as set forth in claim 1 wherein said inlet and outlet manifolds are aligned on an alignment axis Y for receiving the flow of air in a transverse direction successively through said second leg and said first leg.
3. An assembly as set forth in claim 2 wherein said first and second legs are disposed in angular relationship to a reference axis X extending perpendicular to said alignment axis Y to define a first drainage angle Θ1 between said first leg and said reference axis X and a second drainage angle Θ2 between said second leg and reference axis X and said acute angle α is equal to the difference between said drainage angles (Θ21) for draining condensate along said legs toward said manifolds.
4. An assembly as set forth in claim 3 wherein said first leg has a first length L1 between said bend and said inlet manifold and said second leg has a second length L2 between said bend and said outlet manifold and said first length L1 is less than said second length L2 for aligning said manifolds in juxtaposed relationship along said alignment axis Y for establishing a common draining point of said condensate at said juxtaposed manifolds.
5. An assembly as set forth in claim 4 wherein said second drainage angle Θ2 is equal to or greater than 10 degrees and said first drainage angle Θ1 is equal to or greater than 20 degrees and said acute angle α is equal to or greater than 10 degrees.
6. A heat exchanger assembly comprising;
an inlet manifold and an outlet manifold being cylindrical and extending in spaced and parallel relationship to one another,
a core extending between said manifolds for conveying a working fluid from said inlet manifold to said outlet manifold,
said core including a plurality of tubes extending in spaced and parallel relationship to one another between said manifolds,
said core including a plurality of air fins extending back and forth between adjacent ones of said tubes to present a serpentine pattern extending between said adjacent tubes,
said inlet manifold defining an inlet port for receiving the working fluid,
said outlet manifold defining an outlet port for dispensing the working fluid,
said core extending through a bend to define a first leg having a first length L1 between said bend and said inlet manifold and a second leg having a second length L2 between said bend and said outlet manifold,
said first and second manifolds being aligned on an alignment axis Y for receiving the flow of air in a transverse direction successively through said second leg and said first leg,
said first and second legs being disposed in angular relationship to a reference axis X extending perpendicular to said alignment axis Y to define a first drainage angle Θ1 between said first leg and said reference axis X and a second drainage angle Θ2 between said second leg and said reference axis X, and
said bend extending through a circular bend greater than 180 degrees for disposing said legs in converging relationship from said bend towards said manifolds to define an acute angle α between said legs equal to the difference between said drainage angles (Θ21),
said first length L1 of said first leg being less than said second length L2 of said second leg for aligning said manifolds in juxtaposed relationship along said alignment axis Y for establishing a common draining point of said condensate at said juxtaposed manifolds,
said second drainage angle Θ2 being equal to or greater than 10 degrees and said first drainage angle Θ1 being equal to or greater than 20 degrees and said acute angle α being equal to or greater than 10 degrees for draining condensate along said tubes toward said manifolds.
US12/637,814 2009-12-15 2009-12-15 Two row bent evaporator Abandoned US20110139425A1 (en)

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US12/637,814 US20110139425A1 (en) 2009-12-15 2009-12-15 Two row bent evaporator

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140007600A1 (en) * 2012-07-09 2014-01-09 Mark W. Johnson Evaporator, and method of conditioning air
US20140060778A1 (en) * 2012-05-18 2014-03-06 Modine Manufacturing Company Heat exchanger, and method for transferring heat
US20150096311A1 (en) * 2012-05-18 2015-04-09 Modine Manufacturing Company Heat exchanger, and method for transferring heat
JP2015169358A (en) * 2014-03-06 2015-09-28 パナソニックIpマネジメント株式会社 heat exchanger
US20150323229A1 (en) * 2014-05-09 2015-11-12 Samwon Industrial Co., Ltd. Condenser for refrigerator
JP2015224844A (en) * 2014-05-29 2015-12-14 パナソニックIpマネジメント株式会社 Heat exchanger
EP2985546A3 (en) * 2014-08-13 2016-06-29 Mefa Befestigungs- und Montagesysteme GmbH Heat transfer element; arrangement of a heat exchanging element for the production of an energy storage device
WO2017064531A1 (en) * 2015-10-12 2017-04-20 Carrier Corporation Heat exchanger for residential hvac applications
USD787033S1 (en) * 2015-12-24 2017-05-16 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
WO2017107490A1 (en) * 2015-12-24 2017-06-29 丹佛斯微通道换热器(嘉兴)有限公司 Heat exchanger and air conditioning system
US20170343288A1 (en) * 2014-11-17 2017-11-30 Carrier Corporation Multi-pass and multi-slab folded microchannel heat exchanger
USD844763S1 (en) * 2016-07-05 2019-04-02 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
US10317141B2 (en) * 2014-11-25 2019-06-11 Hydro Extruded Solutions As Multi port extrusion tubing design
US10584921B2 (en) * 2014-03-28 2020-03-10 Modine Manufacturing Company Heat exchanger and method of making the same
USD907752S1 (en) 2016-08-26 2021-01-12 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger

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US1917042A (en) * 1928-05-09 1933-07-04 Carrier Res Corp Heating coil
US2525172A (en) * 1948-03-11 1950-10-10 Leon B French Refrigerating apparatus
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US4474173A (en) * 1983-02-17 1984-10-02 Energy Design Corporation Solar energy collector
JPS63282490A (en) * 1987-05-13 1988-11-18 Showa Alum Corp Manufacture of heat exchanger
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US20070204977A1 (en) * 2006-03-06 2007-09-06 Henry Earl Beamer Heat exchanger for stationary air conditioning system with improved water condensate drainage
US20070204978A1 (en) * 2006-03-06 2007-09-06 Henry Earl Beamer Heat exchanger unit
US20080141708A1 (en) * 2006-11-22 2008-06-19 Johnson Controls Technology Company Space-Saving Multichannel Heat Exchanger

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1917042A (en) * 1928-05-09 1933-07-04 Carrier Res Corp Heating coil
US2525172A (en) * 1948-03-11 1950-10-10 Leon B French Refrigerating apparatus
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US4474173A (en) * 1983-02-17 1984-10-02 Energy Design Corporation Solar energy collector
US5341870A (en) * 1985-10-02 1994-08-30 Modine Manufacturing Company Evaporator or evaporator/condenser
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US5163509A (en) * 1991-08-22 1992-11-17 Stark Manufacturing, Inc. Manifold assembly and method of making same
US20070204977A1 (en) * 2006-03-06 2007-09-06 Henry Earl Beamer Heat exchanger for stationary air conditioning system with improved water condensate drainage
US20070204978A1 (en) * 2006-03-06 2007-09-06 Henry Earl Beamer Heat exchanger unit
US20080141708A1 (en) * 2006-11-22 2008-06-19 Johnson Controls Technology Company Space-Saving Multichannel Heat Exchanger

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140060778A1 (en) * 2012-05-18 2014-03-06 Modine Manufacturing Company Heat exchanger, and method for transferring heat
US20150096311A1 (en) * 2012-05-18 2015-04-09 Modine Manufacturing Company Heat exchanger, and method for transferring heat
US9671176B2 (en) 2012-05-18 2017-06-06 Modine Manufacturing Company Heat exchanger, and method for transferring heat
US20140007600A1 (en) * 2012-07-09 2014-01-09 Mark W. Johnson Evaporator, and method of conditioning air
CN103542620A (en) * 2012-07-09 2014-01-29 摩丁制造公司 Evaporator, and method of conditioning air
US9689594B2 (en) * 2012-07-09 2017-06-27 Modine Manufacturing Company Evaporator, and method of conditioning air
JP2015169358A (en) * 2014-03-06 2015-09-28 パナソニックIpマネジメント株式会社 heat exchanger
US10584921B2 (en) * 2014-03-28 2020-03-10 Modine Manufacturing Company Heat exchanger and method of making the same
US20150323229A1 (en) * 2014-05-09 2015-11-12 Samwon Industrial Co., Ltd. Condenser for refrigerator
US10197313B2 (en) * 2014-05-09 2019-02-05 Samwon Industrial Co., Ltd. Condenser for refrigerator
JP2015224844A (en) * 2014-05-29 2015-12-14 パナソニックIpマネジメント株式会社 Heat exchanger
EP2985546A3 (en) * 2014-08-13 2016-06-29 Mefa Befestigungs- und Montagesysteme GmbH Heat transfer element; arrangement of a heat exchanging element for the production of an energy storage device
EP3156740A1 (en) * 2014-08-13 2017-04-19 Mefa Befestigungs- und Montagesysteme GmbH Arrangement of a heat exchanging element for the production of an energy storage device
US20170343288A1 (en) * 2014-11-17 2017-11-30 Carrier Corporation Multi-pass and multi-slab folded microchannel heat exchanger
US10317141B2 (en) * 2014-11-25 2019-06-11 Hydro Extruded Solutions As Multi port extrusion tubing design
US20180299205A1 (en) * 2015-10-12 2018-10-18 Charbel Rahhal Heat exchanger for residential hvac applications
WO2017064531A1 (en) * 2015-10-12 2017-04-20 Carrier Corporation Heat exchanger for residential hvac applications
USD787033S1 (en) * 2015-12-24 2017-05-16 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
US10612856B2 (en) 2015-12-24 2020-04-07 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger and air conditioning system
WO2017107490A1 (en) * 2015-12-24 2017-06-29 丹佛斯微通道换热器(嘉兴)有限公司 Heat exchanger and air conditioning system
USD852339S1 (en) * 2016-07-05 2019-06-25 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD849216S1 (en) 2016-07-05 2019-05-21 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD852338S1 (en) * 2016-07-05 2019-06-25 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD853541S1 (en) * 2016-07-05 2019-07-09 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD849215S1 (en) 2016-07-05 2019-05-21 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD844763S1 (en) * 2016-07-05 2019-04-02 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD907752S1 (en) 2016-08-26 2021-01-12 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger
USD910821S1 (en) 2016-08-26 2021-02-16 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchanger

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AS Assignment

Owner name: DELPHI TECHNOLOGIES, INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BEAMER, HENRY E.;REEL/FRAME:023904/0640

Effective date: 20100120

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION