US2850884A - Refrigerating apparatus - Google Patents

Refrigerating apparatus Download PDF

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Publication number
US2850884A
US2850884A US527217A US52721755A US2850884A US 2850884 A US2850884 A US 2850884A US 527217 A US527217 A US 527217A US 52721755 A US52721755 A US 52721755A US 2850884 A US2850884 A US 2850884A
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passage
water
condenser
evaporator
refrigerant
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Expired - Lifetime
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US527217A
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James W Jacobs
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Motors Liquidation Co
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Motors Liquidation Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49083—Heater type

Definitions

  • This invention relates to refrigerating apparatus and more particularly to apparatus for cooling water.
  • Another object of this invention is to provide a water cooler having a minimum number of parts. More particularly, it is an object of this invention to provide a refrigerating system for use in a' water cooler in which the refrigerant condenser, the evaporator, and the water chilling passages are all formed in a single roll bonded heat exchange unit.
  • Another object of this invention is to provide an improved arrangement for mounting and cooling the refrigeration equipment.
  • Figure l is a vertical sectional view through a kitchen cabinet showing a water cooler unit constructed in accordance with my invention.
  • Figure 2 is a bottom view of the water cooler unit
  • Figure 3 is a side elevational view with parts broken away showing the arrangement for circulating condenser cooling air over the unit;
  • Figure 4 is a developed view showing the arrangement of the refrigerant and water passages in the roll bonded heat exchange element forming part of the water cooler unit;
  • Figure 5 is a sectional view taken substantially on line 5-5 of Figure 4.
  • Figure 6 is a sectional view taken substantially on line 6-6 of Figure 4.
  • reference numeral 10 generally designates a kitchen cabinet having a top 12 which provides work surface and also serves as a support for a water cooler assembly 14.
  • the water cooler is suspended from the bottom surface of the work top by means of the supporting means 16 which is constructed and arranged as shown.
  • the water cooler assembly includes a one-piece roll bonded plate type heat exchange unit 18 which has been bent into circular shape so as to form the outer shell of the water cooler assembly.
  • a conventional sealed motor-compressor unit 20 is carried by an apertured bottom plate 22 secured to the lower edge of the heat exchange unit 18.
  • the upper edge of the circular heat exchange unit 18 is secured to the mounting means 16 which serves to suspend the water cooler beneath the work surface 12.
  • the heat exchanger 18 consists of a one-piece roll bonded plate which has incorporated therein a condenser passage 24, an evaporator passage 26, and a water passage 28.
  • the plate element 18 is manufactured by the roll bonding Patented Sept. 9, 1 s
  • water to be cooled is supplied from a city water main or any other suitable source and enters the passage 28 through a line 30 which connects to the inlet 32 for the water cooling passage 28.
  • the chilled water leaves through the outlet 34 which connects to a water dispensing faucet 36 provided above the table top 12.as best shown in Figures 1 and 3.
  • the compressor discharge line 38 is connected to the condenser passage 24 of the roll forged plate 18 at 40 whereby the compressed refrigerant is required to pass through the condenser portion 24 of the plate before entering the fixed restrictor 42 which then directs the liquid refrigerant leaving the condenser 24 into the evaporator passage 26.
  • the fixed restrictor 42 is in the form of a small capillary tube inserted into the inlet end 44 of the evaporator passage.
  • the liquid refrigerant entering the evaporator passage 26 vaporizes therein prior to returning to
  • the evaporator passage 26 is arranged in close proximity to the water passage 28 and that the condenser portion of the roll bonded plate 18 is largely separated from the evaporator portion thereof by means of slots 48 which minimize the transfer of heat from the condenser portion of the plate 18 to the evaporator and water cooling portion of the plate.
  • the water passage includes a pair of enlargements 50 of the waffle plate type which serve as storage chambers for the water to be refrigerated. Suitable insulation 52 serves to enclose the evaporator and water chilling passages in the roll bonded plate 18 as best shownin Figure 1 of the drawing.
  • the condenser portion of the roll bonded plate 18 is fully exposed to the air flowing through the kitchen cabinet so as to dissipate the heat removed from the water by the refrigerating system.
  • the condenser cooling air enters the kitchen cabinet through an air inlet grille 60 provided adjacent the floor of the cabinet 19 andsome of this air flows around the outside of the water cooler assembly and some of it flows through air inlet passages 62 provided in the member 22 so as to cool the inner surface of the condenser portion 18 and so as to cool the motor-compressor unit 20.
  • the rear wall of the cabinet construction is provided with an air outlet 64 which communicates with an air flue 66 leading to an exhaust fan 68 which exhausts the air into the outside atmosphere.
  • the exhaust fan 68 may be provided solely for the water cooler assembly or it may also serve to exhaust air fro-m the entire kitchen as well as from the water cooling unit. As shown in Figure 3 of the drawing a canopy 70 of the type used over ranges hasbeen provided for withdrawing odors emanating from the food preparation center as well as for withdrawing the condenser cooling air.
  • a water cooling unit a one-piece metal plate having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through the motor-compressor unit through the usual suction line said water passage is cooled by the refrigerant vaporized I in said evaporator passage, said one piece plate type heat exchanger forming an outer shell surrounding said compressor.
  • a water cooling unit a one-piece metal platehaving formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; insulating means surrounding said evaporator and water passages, and means for circulating air in thermal exchange relationship with said condenser passage.
  • a circular outer housing element comprising a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; insulating means surrounding said evaporator and water passages, and means for circulating air in thermal exchange relationship with said condenser passage.
  • a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing waterfrom the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; a kitchen cabinet; means for supporting said plate type heat exchanger and said compressor within said cabinet; air inlet means for introducing condenser cooling air into one portion of said cabinet; and means for forcefully exhausting air from another portion of said cabinet; said heat exchanger being arranged in the path of said air.
  • a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship, means for supplying water to be refrigerated to said water passage; means for dispensing water.
  • said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; means forming an enclosure having therein a cabinet; means for supporting said plate type'heat exchanger and said compressor within said cabinet; means for introducing condenser cooling air into one portion of said cabinet; means for forcefully exhausting air from another portion of said cabinet; said last named means comprising an exhaust fan arranged to exhaust air from said enclosure and from said cabinet into the outside atmosphere.

Description

Sept. 9, 1958 J, w. JACOBS 2,850,884 REFRIGERATING APPARATUS 1 Filed Aug. 9, 1955 2 Sheets-Sheet 1 IN V EN TOR.
W. flea/M41151 HIS ATTORNEY Jamu WJaws p 9, 1958 J. w. JAcoBs- 2,850,884
' REFRIGERATING APPARATUS Filed Aug. 9, 1955 z Sheets-Sheet 2 IN VEN TOR.
By Jam W/Jawlw K. V? W HIS ATTORNEY United States Patent REFRIGERATIN G APPARATUS James W. Jacobs, Dayton, Ohio, assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application August 9, 1955, Serial No. 527,217
Claims. (Cl. 62258) This invention relates to refrigerating apparatus and more particularly to apparatus for cooling water.
It is an object of this invention to provide a small compact water cooler which may be manufactured at a low cost.
Another object of this invention is to provide a water cooler having a minimum number of parts. More particularly, it is an object of this invention to provide a refrigerating system for use in a' water cooler in which the refrigerant condenser, the evaporator, and the water chilling passages are all formed in a single roll bonded heat exchange unit.
Another object of this invention is to provide an improved arrangement for mounting and cooling the refrigeration equipment.
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 l is a vertical sectional view through a kitchen cabinet showing a water cooler unit constructed in accordance with my invention;'
Figure 2 is a bottom view of the water cooler unit;
Figure 3 is a side elevational view with parts broken away showing the arrangement for circulating condenser cooling air over the unit;
Figure 4 is a developed view showing the arrangement of the refrigerant and water passages in the roll bonded heat exchange element forming part of the water cooler unit;
Figure 5 is a sectional view taken substantially on line 5-5 of Figure 4; and
Figure 6 is a sectional view taken substantially on line 6-6 of Figure 4.
Referring now to the drawings wherein a preferred embodiment of the invention has been shown, reference numeral 10 generally designates a kitchen cabinet having a top 12 which provides work surface and also serves as a support for a water cooler assembly 14. The water cooler is suspended from the bottom surface of the work top by means of the supporting means 16 which is constructed and arranged as shown.
The water cooler assembly includes a one-piece roll bonded plate type heat exchange unit 18 which has been bent into circular shape so as to form the outer shell of the water cooler assembly. A conventional sealed motor-compressor unit 20 is carried by an apertured bottom plate 22 secured to the lower edge of the heat exchange unit 18. The upper edge of the circular heat exchange unit 18 is secured to the mounting means 16 which serves to suspend the water cooler beneath the work surface 12.
As best shown in Figure 4 of the drawing, the heat exchanger 18 consists of a one-piece roll bonded plate which has incorporated therein a condenser passage 24, an evaporator passage 26, and a water passage 28. The plate element 18 is manufactured by the roll bonding Patented Sept. 9, 1 s
water to be cooled is supplied from a city water main or any other suitable source and enters the passage 28 through a line 30 which connects to the inlet 32 for the water cooling passage 28. The chilled water leaves through the outlet 34 which connects to a water dispensing faucet 36 provided above the table top 12.as best shown in Figures 1 and 3.
The compressor discharge line 38 is connected to the condenser passage 24 of the roll forged plate 18 at 40 whereby the compressed refrigerant is required to pass through the condenser portion 24 of the plate before entering the fixed restrictor 42 which then directs the liquid refrigerant leaving the condenser 24 into the evaporator passage 26. As shown in Figure 4 of the drawing the fixed restrictor 42 is in the form of a small capillary tube inserted into the inlet end 44 of the evaporator passage. The liquid refrigerant entering the evaporator passage 26 vaporizes therein prior to returning to It will be noted that the evaporator passage 26 is arranged in close proximity to the water passage 28 and that the condenser portion of the roll bonded plate 18 is largely separated from the evaporator portion thereof by means of slots 48 which minimize the transfer of heat from the condenser portion of the plate 18 to the evaporator and water cooling portion of the plate. It will also be noted that the water passage includes a pair of enlargements 50 of the waffle plate type which serve as storage chambers for the water to be refrigerated. Suitable insulation 52 serves to enclose the evaporator and water chilling passages in the roll bonded plate 18 as best shownin Figure 1 of the drawing.
The condenser portion of the roll bonded plate 18 is fully exposed to the air flowing through the kitchen cabinet so as to dissipate the heat removed from the water by the refrigerating system. As best shown in Fig ures 1 and 3 the condenser cooling air enters the kitchen cabinet through an air inlet grille 60 provided adjacent the floor of the cabinet 19 andsome of this air flows around the outside of the water cooler assembly and some of it flows through air inlet passages 62 provided in the member 22 so as to cool the inner surface of the condenser portion 18 and so as to cool the motor-compressor unit 20. The rear wall of the cabinet construction is provided with an air outlet 64 which communicates with an air flue 66 leading to an exhaust fan 68 which exhausts the air into the outside atmosphere.
The exhaust fan 68 may be provided solely for the water cooler assembly or it may also serve to exhaust air fro-m the entire kitchen as well as from the water cooling unit. As shown in Figure 3 of the drawing a canopy 70 of the type used over ranges hasbeen provided for withdrawing odors emanating from the food preparation center as well as for withdrawing the condenser cooling air.
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 water cooling unit; a one-piece metal plate having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through the motor-compressor unit through the usual suction line said water passage is cooled by the refrigerant vaporized I in said evaporator passage, said one piece plate type heat exchanger forming an outer shell surrounding said compressor. V
2. In a water cooling unit; a one-piece metal platehaving formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; insulating means surrounding said evaporator and water passages, and means for circulating air in thermal exchange relationship with said condenser passage.
3. In a water cooling unit; a circular outer housing element comprising a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing water from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; insulating means surrounding said evaporator and water passages, and means for circulating air in thermal exchange relationship with said condenser passage.
4. In combination, a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship; means for supplying water to be refrigerated to said water passage; means for dispensing waterfrom the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; a kitchen cabinet; means for supporting said plate type heat exchanger and said compressor within said cabinet; air inlet means for introducing condenser cooling air into one portion of said cabinet; and means for forcefully exhausting air from another portion of said cabinet; said heat exchanger being arranged in the path of said air.
5. In combination; a one-piece plate type heat exchanger having formed therein a condenser passage, an evaporator passage, and a water passage; a refrigerant compressor; means for connecting said compressor, condenser passage, and evaporator passage in series refrigerant flow relationship, means for supplying water to be refrigerated to said water passage; means for dispensing water. from the outlet of said water passage; said water passage being arranged in close relationship with said refrigerant passage whereby the water flowing through said water passage is cooled by the refrigerant vaporized in said evaporator passage; means forming an enclosure having therein a cabinet; means for supporting said plate type'heat exchanger and said compressor within said cabinet; means for introducing condenser cooling air into one portion of said cabinet; means for forcefully exhausting air from another portion of said cabinet; said last named means comprising an exhaust fan arranged to exhaust air from said enclosure and from said cabinet into the outside atmosphere.
References Cited in the file of this patent UNITED STATES PATENTS 2,021,995 Heath Nov. 26, 1935 2,231,162 Hintze Feb. 11, 1941 2,304,359 Hommel Dec. 8, 1942 2,387,465 Peltier Oct. 23, 1945 2,415,243 Hickman Feb. 4, 1947 2,553,693 Wehr May 22, 1951
US527217A 1955-08-09 1955-08-09 Refrigerating apparatus Expired - Lifetime US2850884A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920463A (en) * 1957-03-04 1960-01-12 Gen Motors Corp Refrigerating apparatus
US3041846A (en) * 1960-04-04 1962-07-03 Robert L Ciarke Cold water means
US3117621A (en) * 1962-03-08 1964-01-14 Olin Mathieson Sheet metal structure
US4441334A (en) * 1981-03-10 1984-04-10 Alberto Cipelletti Ice-cream machine
WO2007070034A2 (en) * 2005-12-12 2007-06-21 Carrier Corporation Beverage dispenser with on-demand refrigeration

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021995A (en) * 1931-04-11 1935-11-26 Delos P Heath Heat exchanger
US2231162A (en) * 1938-03-17 1941-02-11 Hermes Patentverwertungs Gmbh Refrigerating apparatus of the compression type
US2304359A (en) * 1941-03-28 1942-12-08 Gen Motors Corp Refrigerating apparatus
US2387465A (en) * 1943-11-30 1945-10-23 Philco Corp Evaporator-condenser construction
US2415243A (en) * 1943-10-20 1947-02-04 Bohn Aluminium & Brass Corp Refrigeration apparatus and method of making same
US2553693A (en) * 1949-01-13 1951-05-22 Andrew H Wehr Liquid cooling device for refrigerators

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021995A (en) * 1931-04-11 1935-11-26 Delos P Heath Heat exchanger
US2231162A (en) * 1938-03-17 1941-02-11 Hermes Patentverwertungs Gmbh Refrigerating apparatus of the compression type
US2304359A (en) * 1941-03-28 1942-12-08 Gen Motors Corp Refrigerating apparatus
US2415243A (en) * 1943-10-20 1947-02-04 Bohn Aluminium & Brass Corp Refrigeration apparatus and method of making same
US2387465A (en) * 1943-11-30 1945-10-23 Philco Corp Evaporator-condenser construction
US2553693A (en) * 1949-01-13 1951-05-22 Andrew H Wehr Liquid cooling device for refrigerators

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920463A (en) * 1957-03-04 1960-01-12 Gen Motors Corp Refrigerating apparatus
US3041846A (en) * 1960-04-04 1962-07-03 Robert L Ciarke Cold water means
US3117621A (en) * 1962-03-08 1964-01-14 Olin Mathieson Sheet metal structure
US4441334A (en) * 1981-03-10 1984-04-10 Alberto Cipelletti Ice-cream machine
WO2007070034A2 (en) * 2005-12-12 2007-06-21 Carrier Corporation Beverage dispenser with on-demand refrigeration
WO2007070034A3 (en) * 2005-12-12 2007-12-06 Carrier Corp Beverage dispenser with on-demand refrigeration
US20080282724A1 (en) * 2005-12-12 2008-11-20 Carrier Corporation Beverage Dispenser with On-Demand Refrigeration
US8973786B2 (en) 2005-12-12 2015-03-10 Carrier Corporation Beverage dispenser with on-demand refrigeration

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