US2792201A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- US2792201A US2792201A US450962A US45096254A US2792201A US 2792201 A US2792201 A US 2792201A US 450962 A US450962 A US 450962A US 45096254 A US45096254 A US 45096254A US 2792201 A US2792201 A US 2792201A
- Authority
- US
- United States
- Prior art keywords
- tubes
- return bends
- refrigerant
- tubing
- condenser
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/047—Heat-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
- F28D1/0477—Heat-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 being bent in a serpentine or zig-zag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
- Y10S165/471—Plural parallel conduits joined by manifold
- Y10S165/48—Elongated support members extending between spaced manifolds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49377—Tube with heat transfer means
- Y10T29/49378—Finned tube
- Y10T29/4938—Common fin traverses plurality of tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49922—Overedge assembling of seated part by bending over projecting prongs
Definitions
- This invention relates to al refrigerating apparatus and more particularly to a refrigerant condenser.
- Still another object of this invention is to provide a condenser which is small and compact but which does not unduly restrict the ilow of refrigerant through the refrigerant passages.
- Still another object of this invention is to provide an improved return bend and frame construction for use in a multiple passage refrigerant condenser.
- Figure 1 is a vertical elevational view showing a preferred embodiment of the invention
- Figure 2 is a plan view with parts broken away
- Figure 3 is a fragmentary sectional view taken substantially on line 3 3 of Figure l;
- Figure 4 is a fragmentary elevational view showing the arrangement of the tubes at the point where they enter the header.
- Figure 5 is a fragmentary sectional view taken substantially on line 5 5 of Figure 4.
- reference numeral designates a first set of live parallel tubes arranged in side-by-side relationship and which have been bent into serpentine shape so as to convey refrigerant to be condensed from an inlet header 12 to an outlet nited States Patent O 2,792,201 Patented May 14, 1957 header 14.
- Reference numeral 16 designates a somewhat similar set of tive parallel tubes also located in sideby-side relationship and which likewise serve to convey refrigerant to be condensed from the inlet header 12 to the outlet header 14.
- the arrangement is such that refrigerant ows through all ten tubes in parallel whereby the restriction to the flow of refrigerant through the condenser is very small in comparison to the size of the tubing used in making the condenser.
- the novel arrangement of the return bends of the two Sets of tubes 10 ⁇ and 16 makes it possible to arrange the two sets of tubes in parallel and to form the return bends integral with the straight portions of the tubes. It will be noted that at each returnrbend the one set of tubes is provided with a relatively sharp bend whereas the other is provided with relatively wide bends. Corrugated fin elements 18 are disposed between the adjacent straight portions of the sets of tubes 10 and 16 so as to facilitate the transfer of heat between air circulated over the condenser and the refrigerant flowing through the internal refrigerant passages formed by the sets of tubes 10 and 16. It will also be noted that the straight portions of the tubes are spaced from one another but that the tubes 10 contact the tubes 16 at each of the return bends.
- Stamped sheet metal frame members 20 and 22 are constructed and arranged as shown and serve to hold the adjacent tube sections in proper assembled relationship with one another prior to the brazing operation which serves to braze the tubes, the fins and the headers into a single unitary device. and 22 are U-shaped in cross section and are provided with inturned ears 24 at the return bends which help to hold the frame members in proper assembled relationship relative to the return ben-ds of the tubes.
- each of the brackets include an integral projecting arm 30 in contact with the adjacent header.
- a iirst set of parallel tubes located in side-by-side relationship, a second set of parallel tubes located in side-by-side relationship, header means for connecting the respective ends of said tubes, said tubes being arranged in a serpentine shape with the one set of tubes arranged in parallel spaced relationship to the other set of tubes throughout the straight portions of said sets of tubes, corrugated lin means interposed between said adjacent straight portions of said sets of tubes, said straight portions being connected by return bends, said lirst set of tubes being ice,
- the frame members 20 ⁇ arranged to contact aid second set of tubes at each of the return bends, and stamped sheet metal channel members engaging opposite sides of said sets of tubes at said return bends, said channel members having integrally formed ears projecting int'o said return bends to hold said set of tubes in contact with one another at said return bends.
- a plurality of sets of parallel tubes in which the tubes in each set are located in side-by-side relationship, header means for connecting the ends of said tubes, said tubes being bent into serpentine shape with the straight portions of one set of tubes arranged in parallel spaced relationship to the straight portion of another set of tubes, individual strips of corrugated tins interposed between a-djacent straight portions of said sets of tubes, said straight portions being connected by return bends, the return bends of one set of tubes being arranged to contact with the return bends of another set of tubes at each return bend, end brackets contacting said return bends, said end brackets being substantially U-shaped in cross section with the arms of the U contacting opposite sides of said set of tubes so as to hold the tubes in each of said sets in contact with the tubes in each set, integral tongues provided on said arms and projecting into the bight of the return bends so as to hold said brackets in assembled relationship relative to said return bends.
Description
May 14f, 1957 c. c. wHlsTLER, JR 2,792,201
HEAT EXCHANGER 2 Sheets-Sheva?l l Filed Aug. 19, 1954 A L n INVENToR. Char/es C, Whisf/er Jr.
His Aforney May 14, 1957 c. c. wHlsTLER, JR 2,792,201
HEAT EXCHANGER Filed Aug. 19, 1954 '2 sheets-sheet 2 INVENTOR. Char/es C. Whistler Jr.
His Attorney 27,792,201 HEAT EXCHANGER Charles C. Whistler, Jr., Dayton, Ohio, assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application August 19, 1954, Serial No. 450,962
2 Claims. (Cl. 257-255) This invention relates to al refrigerating apparatus and more particularly to a refrigerant condenser.
It has generally been considered desirable to use ilat tubing in the manufacture of condensers and the like but fiat tubing cannot withstand high internal pressures due to the tendency of the flat walls to bulge outwardly at higher pressures. To overcome this bulging tendency it has been customary to form the tubing with corrugated strips within the flat tubing and to braze the corrugated strips to the walls of the tubing. This arrangement not only increases the cost of the tubing but also makes it impractical to bend the tubing due to the presence of the internal corrugated strip. This then makes it necessary to cut the lat tubing into short lengths and to attach special return bends at the ends of the tubing thereby further increasing the cost and running the risk of introducing dangerous leaks. It is an object of this invention to obtain the advantages of fiat walled condenser tubing by placing several small round tubes in side-byside relationship. With such an arrangement the return bends can be made integral with the straight sections.
It is another object of this invention to 'provide a rugged and efficient condenser which may be manufactured with a minimum of tooling costs.
Still another object of this invention is to provide a condenser which is small and compact but which does not unduly restrict the ilow of refrigerant through the refrigerant passages.
More particularly it is an object of this invention to provide a refrigerant condenser having a plurality of passages which are connected in parallel in a novel mannel'.
Still another object of this invention is to provide an improved return bend and frame construction for use in a multiple passage refrigerant condenser.
Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings,
wherein a preferred form of the present invention is clearly shown.
In the drawings:
Figure 1 is a vertical elevational view showing a preferred embodiment of the invention;
Figure 2 is a plan view with parts broken away;
Figure 3 is a fragmentary sectional view taken substantially on line 3 3 of Figure l;
Figure 4 is a fragmentary elevational view showing the arrangement of the tubes at the point where they enter the header; and,
Figure 5 is a fragmentary sectional view taken substantially on line 5 5 of Figure 4.
Referring now to the drawings wherein a preferred embodiment of the invention has been shown, reference numeral designates a first set of live parallel tubes arranged in side-by-side relationship and which have been bent into serpentine shape so as to convey refrigerant to be condensed from an inlet header 12 to an outlet nited States Patent O 2,792,201 Patented May 14, 1957 header 14. Reference numeral 16 designates a somewhat similar set of tive parallel tubes also located in sideby-side relationship and which likewise serve to convey refrigerant to be condensed from the inlet header 12 to the outlet header 14. The arrangement is such that refrigerant ows through all ten tubes in parallel whereby the restriction to the flow of refrigerant through the condenser is very small in comparison to the size of the tubing used in making the condenser.
The novel arrangement of the return bends of the two Sets of tubes 10` and 16 makes it possible to arrange the two sets of tubes in parallel and to form the return bends integral with the straight portions of the tubes. It will be noted that at each returnrbend the one set of tubes is provided with a relatively sharp bend whereas the other is provided with relatively wide bends. Corrugated fin elements 18 are disposed between the adjacent straight portions of the sets of tubes 10 and 16 so as to facilitate the transfer of heat between air circulated over the condenser and the refrigerant flowing through the internal refrigerant passages formed by the sets of tubes 10 and 16. It will also be noted that the straight portions of the tubes are spaced from one another but that the tubes 10 contact the tubes 16 at each of the return bends.
Stamped sheet metal frame members 20 and 22 are constructed and arranged as shown and serve to hold the adjacent tube sections in proper assembled relationship with one another prior to the brazing operation which serves to braze the tubes, the fins and the headers into a single unitary device. and 22 are U-shaped in cross section and are provided with inturned ears 24 at the return bends which help to hold the frame members in proper assembled relationship relative to the return ben-ds of the tubes.
As best shown in Figures 4 and 5 of the drawings there are ten individual tubes connected to each of the 'headers and in order to prevent undue weakening of the header at the point where these ten tubes enter the header, the points of entry for the tubes are arranged in staggered relationship as shown. By virtue of this construction, it is possible to drill holes into the header wall without having the holes contact one another. The headers 12 and 14 cooperate with the brackets 20 and 22 to hold the individual tubes in proper assembled relationship prior to the brazing operation. Each of the brackets include an integral projecting arm 30 in contact with the adjacent header.
While the construction described hereinabove was developed for use as a refrigerant condenser in an automobile air conditioning system wherein it is desirable to use a relatively thin condenser of light-weight construction, it is obvious that certain aspects of the invention are equally applicable to refrigerant evaporators, oil coolers and any other type of heat exchanger.
While the form of embodiment of the invention as herein disclosed constitutes a preferred form, it is to be understood that other forms might be adopted, as may come within the scope of the claims which follow.
What is claimed is as follows:
1. In a heat exchange device, a iirst set of parallel tubes located in side-by-side relationship, a second set of parallel tubes located in side-by-side relationship, header means for connecting the respective ends of said tubes, said tubes being arranged in a serpentine shape with the one set of tubes arranged in parallel spaced relationship to the other set of tubes throughout the straight portions of said sets of tubes, corrugated lin means interposed between said adjacent straight portions of said sets of tubes, said straight portions being connected by return bends, said lirst set of tubes being ice,
The frame members 20` arranged to contact aid second set of tubes at each of the return bends, and stamped sheet metal channel members engaging opposite sides of said sets of tubes at said return bends, said channel members having integrally formed ears projecting int'o said return bends to hold said set of tubes in contact with one another at said return bends.
2. In a heat exchange device, a plurality of sets of parallel tubes in which the tubes in each set are located in side-by-side relationship, header means for connecting the ends of said tubes, said tubes being bent into serpentine shape with the straight portions of one set of tubes arranged in parallel spaced relationship to the straight portion of another set of tubes, individual strips of corrugated tins interposed between a-djacent straight portions of said sets of tubes, said straight portions being connected by return bends, the return bends of one set of tubes being arranged to contact with the return bends of another set of tubes at each return bend, end brackets contacting said return bends, said end brackets being substantially U-shaped in cross section with the arms of the U contacting opposite sides of said set of tubes so as to hold the tubes in each of said sets in contact with the tubes in each set, integral tongues provided on said arms and projecting into the bight of the return bends so as to hold said brackets in assembled relationship relative to said return bends.
References Cited in the tile of this patent UNITED STATES PATENTS
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450962A US2792201A (en) | 1954-08-19 | 1954-08-19 | Heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450962A US2792201A (en) | 1954-08-19 | 1954-08-19 | Heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
US2792201A true US2792201A (en) | 1957-05-14 |
Family
ID=23790229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US450962A Expired - Lifetime US2792201A (en) | 1954-08-19 | 1954-08-19 | Heat exchanger |
Country Status (1)
Country | Link |
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US (1) | US2792201A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333317A (en) * | 1964-03-12 | 1967-08-01 | Reynolds Metals Co | Method for making a heat exchanger means |
US4344482A (en) * | 1979-12-29 | 1982-08-17 | Suddeutsche Kuhlerfabrik Julius Fr. Behr Gmbh & Co. Kg | Multiple flow condenser for air conditioning units of motor vehicles |
US4615383A (en) * | 1984-05-01 | 1986-10-07 | Sanden Corporation | Serpentine heat exchanging apparatus having corrugated fin units |
US4881312A (en) * | 1988-07-22 | 1989-11-21 | General Motors Corporation | Method for manufacturing a fitting for a heat exchanger |
US4901791A (en) * | 1988-07-25 | 1990-02-20 | General Motors Corporation | Condenser having plural unequal flow paths |
US5209290A (en) * | 1991-05-10 | 1993-05-11 | Sanden Corporation | Heat exchanger |
US5224537A (en) * | 1991-02-26 | 1993-07-06 | Valeo Thermique Moteur | Connecting device for connecting a serpentine heat exchanger to a fluid flow pipe |
US5881803A (en) * | 1997-02-25 | 1999-03-16 | Thmx Holdings, Llc | Heat exchanger construction |
US6070659A (en) * | 1997-02-06 | 2000-06-06 | Sanden Corporation | External connection for heat exchanger unit |
US20070240445A1 (en) * | 2006-04-14 | 2007-10-18 | Baltimore Aircoil Company, Inc. | Heat transfer tube assembly with serpentine circuits |
US20110168367A1 (en) * | 2008-10-03 | 2011-07-14 | Honda Motor Co., Ltd. | Heat Exchanger With Recessed Fins |
US20170198986A1 (en) * | 2016-01-12 | 2017-07-13 | Hussmann Corporation | Heat exchanger including coil end close-off cover |
EP3994408A4 (en) * | 2019-08-12 | 2023-10-11 | Enjay AB | A battery device for a ventilation system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818446A (en) * | 1930-01-28 | 1931-08-11 | Superheater Co Ltd | Reheater |
US2181354A (en) * | 1939-07-28 | 1939-11-28 | Winters John | Condenser for refrigerators |
GB603467A (en) * | 1945-11-29 | 1948-06-16 | Goetaverken Ab | Improvements in heat exchangers |
US2477950A (en) * | 1944-08-05 | 1949-08-02 | Babcock & Wilcox Co | Superheater |
DE822395C (en) * | 1949-10-24 | 1951-11-26 | Manfred Behr Dipl Ing | Circular condenser for refrigeration machines |
US2619328A (en) * | 1950-01-07 | 1952-11-25 | Rudy Mfg Company | Plate type condenser |
-
1954
- 1954-08-19 US US450962A patent/US2792201A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818446A (en) * | 1930-01-28 | 1931-08-11 | Superheater Co Ltd | Reheater |
US2181354A (en) * | 1939-07-28 | 1939-11-28 | Winters John | Condenser for refrigerators |
US2477950A (en) * | 1944-08-05 | 1949-08-02 | Babcock & Wilcox Co | Superheater |
GB603467A (en) * | 1945-11-29 | 1948-06-16 | Goetaverken Ab | Improvements in heat exchangers |
DE822395C (en) * | 1949-10-24 | 1951-11-26 | Manfred Behr Dipl Ing | Circular condenser for refrigeration machines |
US2619328A (en) * | 1950-01-07 | 1952-11-25 | Rudy Mfg Company | Plate type condenser |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333317A (en) * | 1964-03-12 | 1967-08-01 | Reynolds Metals Co | Method for making a heat exchanger means |
US4344482A (en) * | 1979-12-29 | 1982-08-17 | Suddeutsche Kuhlerfabrik Julius Fr. Behr Gmbh & Co. Kg | Multiple flow condenser for air conditioning units of motor vehicles |
US4615383A (en) * | 1984-05-01 | 1986-10-07 | Sanden Corporation | Serpentine heat exchanging apparatus having corrugated fin units |
US4881312A (en) * | 1988-07-22 | 1989-11-21 | General Motors Corporation | Method for manufacturing a fitting for a heat exchanger |
US4901791A (en) * | 1988-07-25 | 1990-02-20 | General Motors Corporation | Condenser having plural unequal flow paths |
US5224537A (en) * | 1991-02-26 | 1993-07-06 | Valeo Thermique Moteur | Connecting device for connecting a serpentine heat exchanger to a fluid flow pipe |
US5209290A (en) * | 1991-05-10 | 1993-05-11 | Sanden Corporation | Heat exchanger |
US6070659A (en) * | 1997-02-06 | 2000-06-06 | Sanden Corporation | External connection for heat exchanger unit |
US5881803A (en) * | 1997-02-25 | 1999-03-16 | Thmx Holdings, Llc | Heat exchanger construction |
US20070240445A1 (en) * | 2006-04-14 | 2007-10-18 | Baltimore Aircoil Company, Inc. | Heat transfer tube assembly with serpentine circuits |
US7779898B2 (en) * | 2006-04-14 | 2010-08-24 | Baltimore Aircoil Company, Inc. | Heat transfer tube assembly with serpentine circuits |
US20110168367A1 (en) * | 2008-10-03 | 2011-07-14 | Honda Motor Co., Ltd. | Heat Exchanger With Recessed Fins |
US8146651B2 (en) * | 2008-10-03 | 2012-04-03 | Honda Motor Co., Ltd. | Heat exchanger with recessed fins |
US20170198986A1 (en) * | 2016-01-12 | 2017-07-13 | Hussmann Corporation | Heat exchanger including coil end close-off cover |
US10563930B2 (en) * | 2016-01-12 | 2020-02-18 | Hussmann Corporation | Heat exchanger including coil end close-off cover |
EP3994408A4 (en) * | 2019-08-12 | 2023-10-11 | Enjay AB | A battery device for a ventilation system |
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