EP1744113A1 - Geräuscharme Eiserzeugungsvorrichtung - Google Patents

Geräuscharme Eiserzeugungsvorrichtung Download PDF

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Publication number
EP1744113A1
EP1744113A1 EP06019659A EP06019659A EP1744113A1 EP 1744113 A1 EP1744113 A1 EP 1744113A1 EP 06019659 A EP06019659 A EP 06019659A EP 06019659 A EP06019659 A EP 06019659A EP 1744113 A1 EP1744113 A1 EP 1744113A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
compressor
refrigerant
condenser
ice
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.)
Withdrawn
Application number
EP06019659A
Other languages
English (en)
French (fr)
Inventor
Daniel Leo Ziolowski
Gerald J. Stensrud
Matthew W. Allison
David Brett Gist
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.)
Scotsman Group LLC
Original Assignee
Scotsman Industries 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 Scotsman Industries Inc filed Critical Scotsman Industries Inc
Priority claimed from EP01973727A external-priority patent/EP1317645A4/de
Publication of EP1744113A1 publication Critical patent/EP1744113A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/02—Apparatus for disintegrating, removing or harvesting ice
    • F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
    • F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
    • F25C5/10—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using hot refrigerant; using fluid heated by refrigerant
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0403—Refrigeration circuit bypassing means for the condenser
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/051—Compression system with heat exchange between particular parts of the system between the accumulator and another part of the cycle
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/21—Modules for refrigeration systems
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/32—Weight
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures

Definitions

  • This invention relates to an ice cube-making machine that is quiet at the location where ice is dispensed.
  • Ice cube-making machines generally comprise an evaporator, a water supply and a refrigerant/warm gas circuit that includes a condenser and a compressor.
  • the evaporator is connected to the water supply and to a circuit that includes the condenser and the compressor. Valves and other controls control the evaporator to operate cyclically in a freeze mode and a harvest mode.
  • the water supply provides water to the evaporator and the circuit supplies refrigerant to the evaporator to cool the water and form ice cubes.
  • the circuit converts the refrigerant to warm gas that is supplied to the evaporator, thereby warming the evaporator and causing the ice cubes to loosen and fall from the evaporator into an ice bin or hopper.
  • ice making machines When installed in a location, such as a restaurant, where a small footprint is needed, ice making machines have been separated into two separate packages or assemblies.
  • One of the packages contains the evaporator and the ice bin and is located within the restaurant.
  • the other package contains the compressor and condenser, which are rather noisy. This package is located remotely from the evaporator, for example, outside the restaurant on the roof.
  • the evaporator package is relatively quiet as the condenser and compressor are remotely located.
  • This two package ice cube-making machine has some drawbacks. It is limited to a maximum height distance of about 35 feet between the two packages because of refrigerant circuit routing constraints. Additionally, the compressor/condenser package weighs in excess of about 250 pounds and requires a crane for installation. Furthermore, service calls require the mechanic to inspect and repair the compressor/condenser package in the open elements, since it is typically located on the roof of a building. Due to inclement weather, it would be highly desirable to be able to work on the compressor in doors, since it is only the condenser that requires venting to the atmosphere.
  • the condenser is bypassed so that refrigerant is supplied from the compressor in vapor phase to the evaporator.
  • the compressor When the compressor is located a distance from the evaporator, the refrigerant tends to partially change to liquid phase as it traverses the distance, thereby affecting the efficiency warming or defrosting the evaporator.
  • One prior art solution to this problem uses a heater to heat the vapor supply line.
  • Another prior art solution locates a receiver in the same package as the evaporator and uses the vapor ullage of the receiver to supply vapor to the evaporator. Both of these solutions increase the size of the package and, hence, its footprint in a commercial establishment.
  • the ice cube-making machine of the present invention satisfies the first need with a three package system.
  • the condenser, compressor and evaporator are located in separate ones of the packages, thereby reducing the weight per package and eliminating the need for a crane during installation.
  • the compressor package can be located up to 35 feet in height from the evaporator package.
  • the evaporator package can be located in a restaurant room where the ice cubes are dispensed and the compressor package can be located in a separate room on another floor of the building, such as a utility room. This allows for service thereof to be made indoors, rather than outdoors as required by prior two package systems.
  • the condenser package can be located up to 35 feet in height from the compressor package.
  • the condenser package can be located on the roof of the multistory building.
  • the evaporator package has a support structure that supports the evaporator.
  • the compressor package has a support structure that supports the compressor.
  • the condenser package has a support structure that supports the condenser.
  • the present invention satisfies the need for providing vapor to the evaporator during harvest mode by increasing the pressure and temperature of the refrigerant in the evaporator. This is accomplished by connecting a pressure regulator in circuit with the return line between the evaporator and the compressor.
  • the pressure regulator limits flow, which increases pressure and temperature of the refrigerant in the evaporator.
  • the pressure regulator can be located in the compressor package.
  • an ice cube-making machine 20 of the present invention includes an evaporator package 30, a compressor package 50, a condenser package 70 and an interconnection structure 80.
  • Evaporator package 30 includes a support structure 32 that has an upwardly extending member 34.
  • An evaporator 36 is supported by support structure 32 and upwardly extending member 34.
  • An ice bin or hopper 38 is disposed beneath evaporator 36 to receive ice cubes during a harvest mode.
  • Compressor package 50 includes a support structure 52 upon which is disposed a compressor 54, an accumulator 56 and a receiver 40.
  • Condenser package 70 includes a support structure 72 upon which is disposed a condenser 74 and a fan 76. It will be appreciated by those skilled in the art that support structures 32, 52 and 72 are separate from one another and may take on different forms and shapes as dictated by particular design requirements. It will be further appreciated by those skilled in the art that evaporator package 30, compressor package 50 and condenser package 70 suitably include various valves and other components of an ice cube-making machine.
  • Interconnection structure 80 connects evaporator 36, compressor 54 and condenser 74 in a circuit for the circulation of refrigerant and warm gas.
  • Interconnection structure 80 may suitably include pipes or tubing and appropriate joining junctions.
  • an ice-making machine 25 is identical in all respects to ice making machine, except that receiver 40 is disposed on support structure 32 in evaporator package 30 rather than in compressor package 50.
  • Circuit 82 includes interconnection structure 80 that connects the components within compressor package 50 to the components within evaporator package 30 and to the components within condenser package 70.
  • evaporator package 30 evaporator 36 is connected in circuit 82 with a defrost valve 42, an expansion valve 44, a liquid line solenoid valve 45, a drier 46 and an isolation valve 48.
  • compressor package 50, receiver 40, compressor 54 and accumulator 56 are connected in circuit 82 with a filter 51, a bypass valve 53, a check valve 55 and an output pressure regulator 57.
  • condenser package 70 condenser 74 is connected in circuit 82 with a head pressure control valve 58. Head pressure control valve 58 may alternatively be placed in compressor package 50. It will be appreciated by those skilled in the art that evaporator package 30, compressor package 50 and condenser package 70 may include other valves and controls for the operation of ice cube-making machine 20.
  • a heat exchanger loop 87 is in thermal relationship with the liquid refrigerant in accumulator so as to optimize the use thereof during the freeze cycle.
  • Circuit 182 includes interconnection structure 80 that connects the components within compressor package 50 to the components within evaporator package 30 and to the components within condenser package 70.
  • evaporator package 30 evaporator 36 is connected in circuit 182 with a defrost or cool vapor valve 142 and an expansion valve 144.
  • compressor package 50 receiver 40, compressor 54 and accumulator 56 are connected in circuit 182 with a filter 151, a bypass valve 153 and an output pressure regulator 157.
  • condenser package 70 condenser 74 is connected in circuit 182 with a head master or head pressure control valve 158.
  • a heat exchanger loop 187 is in thermal relationship with an output tube of accumulator 56 to optimize the use of liquid refrigerant in the accumulator during the freeze cycle.
  • evaporator package 30, compressor package 50 and condenser package 70 may include other valves and controls for the operation of ice cube-making machine 20.
  • ice-making machine 20 includes a controller 193 that controls the operations thereof including the activation of bypass solenoid valve 153 during the harvest cycle.
  • a pressure switch 192 during harvest mode can activate solenoid valve 153.
  • output pressure valve 157 operates to raise pressure and temperature of the refrigerant in evaporator 36 during ice harvesting.
  • cool vapor valve 142 and bypass valve 153 are open and expansion valve 144 is closed.
  • Refrigerant in vapor phase flows from the output of compressor 54 via either or both of bypass valve 153 or head pressure valve 158 through line 186 to receiver 40.
  • Flow continues via a vapor line 191, cool vapor valve 142, evaporator 36, return line 189, accumulator 56, output pressure regulator 157 to input 190 of compressor 54.
  • Output pressure regulator 157 operates during harvest to slow the flow and decrease pressure at input 190 to compressor 54. This results in a higher pressure in evaporator 36 and higher temperature of the vapor in evaporator 36. The higher temperature refrigerant in evaporator 36 enhances the harvest cycle.
  • Output pressure regulator 157 may be any suitable pressure regulator that is capable of operation at the pressure required in ice-making systems.
  • output pressure regulator may be Model No. OPR 10 available from Alco.
  • Circuit 282 includes interconnection structure 80 that connects the components within compressor package 50 to the components within evaporator package 30 and to the components within condenser package 70.
  • evaporator package 30 evaporator 36 and receiver 40 are connected in circuit 282 with a defrost valve 242, an expansion valve 244, a drier 246 and a check valve 248.
  • compressor package 50 compressor 54 and accumulator 56 are connected in circuit 282 with a head pressure control valve 258.
  • condenser package 70 condenser 74 is connected in circuit 282. Head pressure control valve 258 may alternatively be placed in condenser package 70. It will be appreciated by those skilled in the art that evaporator package 30, compressor package 50 and condenser package 70 may include other valves and controls for the operation of ice cube-making machine 20.
  • Ice cube-making machines 20 and 25 of the present invention provide the advantage of lightweight packages for ease of installation. In most cases, a crane will not be needed. In addition, the evaporator package is rather quiet in operation, as the compressor and the condenser are remotely located. Finally, the distance between evaporator package 30 and condenser package 70 is greatly enhanced to approximately 70 feet in height from the 35 feet height constraint of the prior art two package system.
  • Circuit 382 includes interconnection structure 80 that connects the components within compressor package 50 to the components within evaporator package 30 and to the components within condenser package 70.
  • evaporator package 30 evaporator 36 is connected in circuit 382 with a defrost or cool vapor valve 342 and an expansion valve 344.
  • compressor package 50, receiver 40, compressor 54 and accumulator 56 are connected in circuit 382 with a filter 351, a bypass valve 353, a head master or head pressure control valve 358 and an output pressure regulator 357.
  • a heat exchanger loop 387 passes through accumulator 56 and is in thermal relationship with an output tube of accumulator 56 to optimize the use of liquid refrigerant in the accumulator during the freeze cycle.
  • evaporator package 30, compressor package 50 and condenser package 70 may include other valves and controls for the operation of ice cube-making machine 20.
  • ice-making machine 20 includes a controller 393 that controls the operations thereof including the activation of bypass solenoid valve 353 during the harvest cycle.
  • a pressure switch 392 during harvest mode can activate solenoid valve 353.
  • output pressure valve 357 operates to raise pressure and temperature of the refrigerant in evaporator 36 during ice harvesting.
  • cool vapor valve 342 and bypass valve 353 are open and expansion valve 344 is closed.
  • Refrigerant in vapor phase flows from the output of compressor 54 to a vapor line 391 via either or both of a first path that includes bypass valve 353 or a second path that includes head pressure valve 358 line 386 and receiver 40.
  • Flow continues via vapor line 391, cool vapor valve 342, evaporator 36, return line 389, accumulator 56, output pressure regulator 357 to input 390 of compressor 54.
  • Output pressure regulator 357 operates during harvest to slow the flow and decrease pressure at input 390 to compressor 54. This results in a higher pressure in evaporator 36 and higher temperature of the vapor in evaporator 36. The higher temperature refrigerant in evaporator 36 enhances the harvest cycle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP06019659A 2000-09-15 2001-09-14 Geräuscharme Eiserzeugungsvorrichtung Withdrawn EP1744113A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23339200P 2000-09-15 2000-09-15
EP01973727A EP1317645A4 (de) 2000-09-15 2001-09-14 Geräuscharmes eiserzeugungsgerät

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01973727A Division EP1317645A4 (de) 2000-09-15 2001-09-14 Geräuscharmes eiserzeugungsgerät

Publications (1)

Publication Number Publication Date
EP1744113A1 true EP1744113A1 (de) 2007-01-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06019659A Withdrawn EP1744113A1 (de) 2000-09-15 2001-09-14 Geräuscharme Eiserzeugungsvorrichtung

Country Status (1)

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EP (1) EP1744113A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3660419A1 (de) * 2018-11-29 2020-06-03 Danfoss A/S Kühlsystem für effizienten betrieb

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766744A (en) * 1972-11-02 1973-10-23 W Morris Cube ice making machine and method
US4774815A (en) * 1986-04-16 1988-10-04 The Manitowoc Company, Inc. Harvest pressure regulator valve system
US5058395A (en) * 1990-03-02 1991-10-22 H. A. Phillips & Co. Slug surge suppressor for refrigeration and air conditioning systems
US5363671A (en) * 1993-07-12 1994-11-15 Multiplex Company, Inc. Modular beverage cooling and dispensing system
US5842352A (en) * 1997-07-25 1998-12-01 Super S.E.E.R. Systems Inc. Refrigeration system with improved liquid sub-cooling
EP0992749A2 (de) * 1998-10-06 2000-04-12 Manitowoc Foodservice Group, Inc. Eiserzeugungsmaschine mit Abtauung mittels Kaltgas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766744A (en) * 1972-11-02 1973-10-23 W Morris Cube ice making machine and method
US4774815A (en) * 1986-04-16 1988-10-04 The Manitowoc Company, Inc. Harvest pressure regulator valve system
US5058395A (en) * 1990-03-02 1991-10-22 H. A. Phillips & Co. Slug surge suppressor for refrigeration and air conditioning systems
US5363671A (en) * 1993-07-12 1994-11-15 Multiplex Company, Inc. Modular beverage cooling and dispensing system
US5842352A (en) * 1997-07-25 1998-12-01 Super S.E.E.R. Systems Inc. Refrigeration system with improved liquid sub-cooling
EP0992749A2 (de) * 1998-10-06 2000-04-12 Manitowoc Foodservice Group, Inc. Eiserzeugungsmaschine mit Abtauung mittels Kaltgas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3660419A1 (de) * 2018-11-29 2020-06-03 Danfoss A/S Kühlsystem für effizienten betrieb
WO2020109213A1 (en) * 2018-11-29 2020-06-04 Danfoss A/S Cooling system for efficient operation
CN113056644A (zh) * 2018-11-29 2021-06-29 丹佛斯有限公司 高效操作的冷却系统

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