US3877242A - Harvest control unit for an ice-making machine - Google Patents

Harvest control unit for an ice-making machine Download PDF

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Publication number
US3877242A
US3877242A US40529573A US3877242A US 3877242 A US3877242 A US 3877242A US 40529573 A US40529573 A US 40529573A US 3877242 A US3877242 A US 3877242A
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United States
Prior art keywords
water
ice
orifice
tube
switch
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Expired - Lifetime
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English (en)
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Olen R Creager
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INTERNATIONAL REFRIGERATION ENGINEERS
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INTERNATIONAL REFRIGERATION ENGINEERS
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Priority to US40529573 priority Critical patent/US3877242A/en
Priority to JP11701074A priority patent/JPS5522711B2/ja
Priority to DE19742449026 priority patent/DE2449026A1/de
Priority to GB4418074A priority patent/GB1455059A/en
Priority to FR7434288A priority patent/FR2247685B1/fr
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Publication of US3877242A publication Critical patent/US3877242A/en
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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
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/04—Producing ice by using stationary moulds
    • F25C1/06—Producing ice by using stationary moulds open or openable at both ends
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2534—Liquid level response

Definitions

  • ABSTRACT A harvest control unit for an ice-marking machine characterized by an actuatable switch adapted to provide an output signal for electrically initiating a harvest of ice from the machine, and switch-actuating means responsive to variations in the flow of water for actuating said switch including a receiver pan for receiving the variable flow of water, a manifold chamber connected with the receiver pan having a metering orifice defined within the chamber for discharging water from the manifold at a substantially fixed rate, a holding tank for confining a relatively warm body of water supported in spaced relation with the manifold chamber and communicating therewith, and a buoyant mass supported by said body of water and connected with the switch means for actuating the switch in response to variations in the level of the body of water.
  • the invention relates to a harvest control unit for an ice-making machine, and more particularly to a harvest control unit for controlling the harvest of ice in response to variations in the rate of flow of water through the ice-making machine;
  • Ice-making machines suited for automatically and cyclically producing ice pellets are well known andfrequently are found in various commercial establishments including hotels, restaurants, dairies and the like.
  • U.S. Letters Pat. No. 3,068,660 which issued Dec. 18. 1962 and U.S. Letters Pat. No. 3,392,540 which issued July 16. 1968 disclose typical ice-making machines.
  • the prior art machines typified by the aforementioned patents include an evaporator section having a first tube through which water is circulated continuously, and an outer tube which constitutes a tempera.- ture control jacket. Through the temperature control jacket a gaseous refrigerant and a heated gas alternately are circulated for cyclically freezing water within the tube, to thus form an ice deposit along the wall thereof. and thereafter heating the tube for initiating an ice-harvesting operation.
  • Still another approach to achieving cyclic control has encompassed the concept of utilizing a control unit which responds to variations in the rate of discharge flow from the evaporator section, for initiating iceharvesting operations; as more fully described in the aforementioned U.S Letters Pat. No. 3,068,660.
  • the control unit suggested by the aforementioned patent for performing the desired function of responding to variations in the rate of discharge flow for initiating ice-harvesting operations includes a tank for receiving the discharge flow from the evaporator section, an
  • a receiver pan for receiving the flow of water discharged from the evaporator section of an ice-making machine
  • a manifold chamber connected with the receiver pan including therein an ice-free metering orifice disposed in spaced relation with the receiving pan
  • a holding tank for confining a relatively warm body of water having a variable level supported in spaced relation with the manifold chamber and communicating therewith through a port disposed within the lower portion of the holding tank
  • a float switch connected with the holding tank responsive to variations in the level of the body of water for actuating a switch to provide an electrical output signal for initiating ice-harvesting operations
  • FIG. 1 is a partially sectioned schematic view of an ice-making machine including a control unit which e m bodies the principles of the instant invention.
  • FIG. 2 is a partially sectioned side elevation illustrating a manifold chamber embodied within the control unit shown in FIG. 1.
  • FIG. 3 is a fragmented end view of the manifold chamber shown in FIG. 2.
  • FIG. 1 an ice-making machine, generally designated 10, having a harvest control unit, generally designated 12, through which cyclic operation control is imposed on the machine.
  • the machine 10 includes an evaporator section 14 provided with an ice-making tube 16 concentrically related to an outer tube 18.
  • the tube 18 defines about the tube 16 a void which serves as a temperature control jacket, not designated.
  • the concentrically related tubes 16 and 18 are of a helical configuration, however, for reasons which should readily be apparent, the tubes may be of any other suitable configuration.
  • a pump 20 is connected with the ice-making tube 16 through a feed line 22 and continuously serves to supply a head of water to the evaporator section 14. It is important to note that at the discharge end of the icemaking tubes I6, there is provided a discharge orifice 24 through which water is discharged from the evaporator section 14. As a practical matter, the configuration of the tube 16, adjacent to the discharge orifice 24, is varied for causing the ice to crack as it is forced from the tube during ice-harvesting operations.
  • the temperature control jacket formed by the outer tube 18 communicates with a condensor-reservoir section, designated 26, through a suitable feeder line 28.
  • a compressor section is connected, at its input side, with the outlet side of the temperature control jacket through a discharge line 32.
  • the output side of the compressor section 30 is connected with a selector valve 34 through a pressure line 36, which, in turn, is connected to the condensor-reservoir section 26, through a feeder line 38, and to a by-pass line 40.
  • the by-pass line terminates at a suitable T-fitting. not designated, provided in the feeder line 28.
  • valve 34 when in a first position, serves to connect the compressor section 30 with the condensor-reservoir section 26 and, when in a second position, serves to connect the compressor section 30 with the feeder line 28, directly, whereby the condensonreservoir section 26 is by-passed. Consequently, it is to be understood that when the valve 34 is in its first position, a gaseous refrigerant is delivered from the condensor-reservoir section to the temperature control jacket, defined by the outer tube 18, and when the valve is in its second position heated gas derived from the compressor section 30 is delivered to the temperature control jacket, via the by-pass line 40.
  • the pump 20 delivers a continuous stream of water through the evaporator section 14. Therefore, as refrigerant is introduced into the temperature control jacket, defined by the outer tube 18, a collection of ice adheres to the inner walls of the ice-making tube 16. As this collection of ice continues to thicken so that the flow rate, or quantity per unit of time, of the stream of water discharged from the discharge orifice 24 is substantially reduced.
  • the machine initiates an ice-harvesting operation. This is effected by switching the valve 34 to its second position whereupon heated gas is delivered to the temperature control jacket, defined by the outer tube 18, via the by-pass line 40 and the feeder line 28.
  • the wall of the icemaking tube 16 is thus heated so that ice adhered thereto tends to release, whereupon back pressure established in the feeder line 22 serves to force the ice from the evaporator section 14.
  • a spring-loaded solenoid 42 is provided for actuating the selector valve 34. Therefore, it is to be understood that the valve is maintained in its first position in response to the effects of the spring of the solenoid, while an electrical signal ,applied across the solenoid 42 causes the valve 34 to switch to its second position, all in a manner well understood by those familiar with solenoid-actuated valves. Accordingly. it should be apparent that ice-harvesting operations are initiated in response to an electrical signal applied to the solenoid 42.
  • the solenoid 42 is electrically connected to a float switch 44 provided within the control unit 12.
  • a suit able signal conductor 46 serves quite satisfactorily for this purpose.
  • the float switch 44 includes a pivotally supported mercury switch, not shown, connected with a buoyant mass 48 through a suitable lever arm 50. Since float switches are well known, a detailed description of the switch 44 is omitted in the interest of brevity. However, it is to be understood that the switch includes means defining a shorting bar through which an electrical circuit is completed between the signal conductor 46 and a source of electrical potential not shown, response to a lowering of the mass 48. A raising of the mass 48 permits the switch to open for thus interrupting a circuit between the signal conductor 46 and the source of electrical potential, all in a manner well understood by those familiar with float switches and similar devices.
  • the float switch 44 While the switch 44 is mounted in any suitable manner, the float switch 44, as illustrated, is supported on a vertical wall of a holding tank 52 through a suitable bracket 54 attached thereto. A wing-nut and stud assembly 58 are readily employable for coupling the float switch 44 with the bracket 54, preferably in a manner such that the float switch 44 can be adjusted vertically relative to the holding tank 52.
  • the buoyant mass 48 is supported by a body of water of a variable level, designated 60, confined within the holding tank 52, and activation of the float switch 44 is dictated by the positions assumed by the lever arm 50, as the level of the body of water 60 is caused to vary.
  • water is supplied to and extracted from the holding tank 52 via a port 62, provided in the lowermost portion thereof, and tubular conduit 64 connected therewith and extended to communicate with a manifold housing 66. While not shown, it is to be understood that suitable fittings are provided for coupling the conduit 64 with the holding tank 52 and the mani fold housing.
  • the manifold housing 66 is mounted at one side of a receiver pan 68 and in coaxial alignment with an outlet orifice 70 provided in the lower portion of the receiver pan 68.
  • the receiver pan 68 serves to confine a body of water, designated 71, and is disposed immediately beneath a funnel-like structure 72 which serves to direct into the pan the stream of water discharged from the discharge orifice 24.
  • the funnel-like structure 72 is provided with an inclined cover screen 74 over which a delivery of ice is effected as the ice is discharged from the orifice 24 and deposited in an ice repository 76.
  • a manifold chamber 80 within the manifold housing 66 there is defined a manifold chamber 80.
  • the manifold chamber 80 is of a diameter substantially equal to the diameter of the outlet orifice 70 and is provided with a metering orifice 82 through which a flow of water is discharged at a constant rate.
  • communication between the holding tank 52 and the manifold chamber 80 is established through a delivery orifice 84 provided in the manifold housing 66 in coaxial alignment with the orifice 70.
  • the metering orifice 82 and the delivery orifice 84 are of a common diameter, substantially less than the diameter of the outlet orifice 70 for the receiver pan 68.
  • a retainer wire 85 may be welded in diametric relation across the orifice 70, where so desired.
  • a delivery pan 86 Disposed immediately beneath the orifice 82, in receiving relation therewith, there is a delivery pan 86. This pan is connected with the input side of the pump 20 via a delivery line 88. Thus the water discharged from the metering orifice 82 ultimately returns to the input side of the pump 20 for recirculation through the evaporator section 14 of the machine 10.
  • control unit 12 coupled with the ice-making machine 10, in the manner hereinbefore described, the control unit 12 is employable for imposing cyclic control over the operation of the ice-making machine.
  • a continuous stream of water is established through the evaporator section 14. This stream is, of course, discharged from the discharge end of the tube 16, at the port 24, and is received in the receiver pan 68.
  • the selector valve 34 is in its first position, so that a flow of gaseous refrigerant is established through the temperature control jacket formed by the outer tube 18 about the icemaking tube 16, a chilling of the wall of the ice-making tube 16 is occurring. As chilling of the water flowing through the ice-making tube 16 occurs, the thickness of a collection of ice thus formed and deposited on the inner surface of the wall of the tube 16 is substantially increased.
  • the flow rate for the water discharged from the discharge orifice 24 is decreased, whereupon the level of the body of water 71, within the receiver pan 68, and the body of water 60 confined within the holding tank 52, begins to drop, as water is discharged from the manifold chamber 80 via the metering orifice 82.
  • the temperature of the water discharged from the discharge orifice 24 is substantially lower than the temperature of the body 60 confined within the holding tank 52.
  • the water from the receiver pan 68 is co-mingled with the water returned from the holding tank 52, within the manifold chamber 80, a collection of ice and slush within the manifold chamber is substantially eliminated.
  • the metering orifice 82 is permitted to discharge water at a constant rate for continuing to lower the level of the bodies 71 and 60.
  • the elevation of the buoyant mass 48 is lowered as the level of the body 60 is lowered.
  • the arm 50 causes the float switch 44 to achieve a circuit-closed condition for completing an electrical circuit between the source of electrical potential, not shown. and the solenoid 42.
  • an electrical signal is applied to the solenoid 42 for causing the solenoid to responsively reposition the selector valve 34 to its second position.
  • valve 34 causes the discharge side of the compressor section 30 to communi cate with the by-pass line 40 whereby compressed refrigerant in its heated condition is caused to by-pass the condensor-reservoir section 26 and be delivered to the temperature control jacket defined by the outer tube 18 about the ice-making tube 16.
  • the heated gas serves to heat the wall of the ice-making tube 16 for causing the collection of ice adhered thereto to be released. Due to the back pressure now established within the feeder line 22, the released deposits of ice are ejected from the evaporator section 14, via the discharge orifice 24.
  • the flow rate of water through the ice-making tube is rapidly increased, whereupon the level of the bodies of water 71 and 60 is rapidly increased for thus causing the mass 48 to be elevated for thereby causing the switch element of the float switch 44 to open the previously established electrical circuit between the source of electrical potential and the solenoid 42.
  • the spring-load of the solenoid 42 causes the selector valve 34 to switch to its first position whereupon the ice-harvesting phase of the machines cycle of operation is completed and the iceforming phase of the cycle is initiated.
  • An improved harvest control unit in combination with an ice-making machine of the type including an ice making tube, means for delivering a continuous flow of water through said tube at a variable rate. and a hot-gas circuit including means responsive to an electrical harvesting signal for initiating ice-harvesting operations, comprising:
  • a float switch connected with said holding tank for providing an electrical harvesting signal in response to a predetermined variation in the level of said body
  • E. means defining in said manifold a metering orifice for discharging from the chamber. at a substantially fixed rate, water delivered thereto from said pan and from said holding tank.
  • said harvest control unit of claim 3 wherein said float switch includes a buoyant mass supported by said body of water and means for closing an electrical circuit in response to a lowering of said mass relative to the bottom portion of the holding tank.
  • control unit of claim 4 further including means for vertically adjusting said float switch relative to said tank.
  • an ice-making machine of the type including an ice-making tube confined within tubular means defining a concentrically related temperature control jacket; a water delivery circuit connected with said tube and having a pump for forcing a continuous stream of water through the tube; and a gas delivery circuit connected with said jacket and having refrigerant means connectable with the jacket for delivering a flow of refrigerant gas therethrough for chilling the wall of said tube sufficiently for causing a collection of ice to adhere to the wall, and further having harvesting means connectable with the jacket for delivering a flow of heated gas therethrough for heating said wall sufficiently for initiating a release of the ice from said wall, and selectively operable valve means connected with the refrigerant means, the harvesting means and the jacket for alternately connecting said refrigerant means and said harvesting means with said jacket, the improvement comprising:
  • means for varying the level of said body of water including a receiver pan supported in spaced relation with said holding tank and disposed beneath the discharge end of said tube for receiving the stream of water as it is forced through said tube.
  • means defining an outlet orifice adjacent to the bottom portion of said receiver pan means defining a manifold chamber connected with said outlet orifice for receiving the water from said receiver pan.
  • means defining within the chamber a metering orifice for discharging water from said chamber at a preselected. substantially constant rate.
  • means defining within the chamber a delivery orifice.
  • the improvement of claim 6 further comprising a flow tubular conduit extending between the deli ⁇ '- wire extended diametrically across said outlet orifice ery orifice of the manifold chamber and the inlet for restraining from entry to said manifold chamber ice orifice of the holding tank, and means for deliversuspended in the water received thereby. ing water discharged from said metering orifice to

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
US40529573 1973-10-11 1973-10-11 Harvest control unit for an ice-making machine Expired - Lifetime US3877242A (en)

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Application Number Priority Date Filing Date Title
US40529573 US3877242A (en) 1973-10-11 1973-10-11 Harvest control unit for an ice-making machine
JP11701074A JPS5522711B2 (de) 1973-10-11 1974-10-11
DE19742449026 DE2449026A1 (de) 1973-10-11 1974-10-11 Auswurfsteuerung fuer eine eismaschine
GB4418074A GB1455059A (en) 1973-10-11 1974-10-11 Harvest control unit in an ice-making machine
FR7434288A FR2247685B1 (de) 1973-10-11 1974-10-11

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US40529573 US3877242A (en) 1973-10-11 1973-10-11 Harvest control unit for an ice-making machine

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US3877242A true US3877242A (en) 1975-04-15

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JP (1) JPS5522711B2 (de)
DE (1) DE2449026A1 (de)
FR (1) FR2247685B1 (de)
GB (1) GB1455059A (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075863A (en) * 1976-08-23 1978-02-28 Storm King Products, Inc. Freeze-harvest control system for a tubular ice maker
US4230470A (en) * 1977-01-21 1980-10-28 Hitachi, Ltd. Air conditioning system
US4440188A (en) * 1979-07-27 1984-04-03 Carrou J Le Process and devices for controlling the level of a liquid
US4448598A (en) * 1981-02-27 1984-05-15 Samifi Babcock Samifi Internationale S.A. Pneumatic system for operating the mechanism of ice separation from evaporating plates in a plate or slab ice generator by using the condensing gas, simultaneously with circuit reversal for defrosting the ice product
US4455843A (en) * 1981-06-21 1984-06-26 Quarles James H Ice making machine for selectively making solid and hollow ice
US4510761A (en) * 1982-05-19 1985-04-16 Quarles James H Ice making machine with reverse direction hot gas thawing and pressurized gas discharge
US4791792A (en) * 1985-09-27 1988-12-20 Hoshizaki Electric Co., Ltd. Ice making machine
US4970869A (en) * 1989-01-13 1990-11-20 Shimizu Construction Co., Ltd. Tube type freezing unit and in-tube freezing method
US5787723A (en) * 1995-08-21 1998-08-04 Manitowoc Foodservice Group, Inc. Remote ice making machine
US20080163638A1 (en) * 2006-12-13 2008-07-10 Mile High Equipment Llc. Ice-machine evaporator and control system
US20080178614A1 (en) * 2007-01-31 2008-07-31 Mile High Equipment Llc. Ice-making machine with control system
US20080184729A1 (en) * 2007-01-31 2008-08-07 Mile High Equipment Llc. Ice-making machine
WO2008140809A3 (en) * 2007-05-11 2009-04-30 Du Pont Method for exchanging heat in a vapor compression heat transfer system and a vapor compression heat transfer system comprising an intermediate heat exchanger with a dual-row evaporator or condenser
US20090173085A1 (en) * 2007-12-17 2009-07-09 Mile High Equipment L.L.C. Ice-making machine with water flow sensor
EP2181294A1 (de) * 2007-01-31 2010-05-05 Mile High Equipment LLC Maschine zur herstellung von eis
US20120031126A1 (en) * 2010-08-06 2012-02-09 Manitowoc Foodservice Companies,Llc Control system for an ice maker
WO2012106484A2 (en) 2011-02-02 2012-08-09 Robert Amblad Positive air pressure ice making and dispensing system
EP2685182A3 (de) * 2012-07-11 2014-08-13 Manitowoc Foodservice Companies, LLC Verfahren und Vorrichtung zur Einstellung der Eistafelbrückendicke und Einleitung der Eisernte nach dem Gefrierzyklus
US9003824B2 (en) 2011-02-02 2015-04-14 Robert Almblad Positive air pressure ice making and dispensing system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618538B1 (fr) * 1987-07-20 1989-11-17 Bonnasse Olivier Dispositif destine a la fabrication automatique et continue des glacons avec evaporateur horizontal a conduits verticaux

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068660A (en) * 1961-03-08 1962-12-18 Council Mfg Corp Ice making machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068660A (en) * 1961-03-08 1962-12-18 Council Mfg Corp Ice making machine

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075863A (en) * 1976-08-23 1978-02-28 Storm King Products, Inc. Freeze-harvest control system for a tubular ice maker
US4230470A (en) * 1977-01-21 1980-10-28 Hitachi, Ltd. Air conditioning system
US4440188A (en) * 1979-07-27 1984-04-03 Carrou J Le Process and devices for controlling the level of a liquid
US4448598A (en) * 1981-02-27 1984-05-15 Samifi Babcock Samifi Internationale S.A. Pneumatic system for operating the mechanism of ice separation from evaporating plates in a plate or slab ice generator by using the condensing gas, simultaneously with circuit reversal for defrosting the ice product
US4455843A (en) * 1981-06-21 1984-06-26 Quarles James H Ice making machine for selectively making solid and hollow ice
US4510761A (en) * 1982-05-19 1985-04-16 Quarles James H Ice making machine with reverse direction hot gas thawing and pressurized gas discharge
US4791792A (en) * 1985-09-27 1988-12-20 Hoshizaki Electric Co., Ltd. Ice making machine
US4970869A (en) * 1989-01-13 1990-11-20 Shimizu Construction Co., Ltd. Tube type freezing unit and in-tube freezing method
US5787723A (en) * 1995-08-21 1998-08-04 Manitowoc Foodservice Group, Inc. Remote ice making machine
US5953925A (en) * 1995-08-21 1999-09-21 Manitowoc Foodservice Group, Inc. Remote ice making machine
US6134907A (en) * 1995-08-21 2000-10-24 Manitowoc Foodservice Group, Inc. Remote ice making machine
US20080163638A1 (en) * 2006-12-13 2008-07-10 Mile High Equipment Llc. Ice-machine evaporator and control system
US20080178614A1 (en) * 2007-01-31 2008-07-31 Mile High Equipment Llc. Ice-making machine with control system
US20080184729A1 (en) * 2007-01-31 2008-08-07 Mile High Equipment Llc. Ice-making machine
EP2181294A1 (de) * 2007-01-31 2010-05-05 Mile High Equipment LLC Maschine zur herstellung von eis
EP2181294A4 (de) * 2007-01-31 2010-09-29 Mile High Equipment Llc Maschine zur herstellung von eis
EP2145150B1 (de) 2007-05-11 2016-04-13 E. I. du Pont de Nemours and Company Verfahren zur wärmetauschung in einem dampfkompressions-wärmeübertragungssystem und dampfkompressions-wärmeübertragungssystem mit einem zwischenwärmetauscher mit einem zweireihigen verdampfer oder kondensator
US20090120619A1 (en) * 2007-05-11 2009-05-14 E. I. Du Pont De Nemours And Company Method for exchanging heat in vapor compression heat transfer systems
US11867436B2 (en) 2007-05-11 2024-01-09 The Chemours Company Fc, Llc Method for exchanging heat in vapor compression heat transfer systems and vapor compression heat transfer systems comprising intermediate heat exchangers with dual-row evaporators or condensers
US11624534B2 (en) 2007-05-11 2023-04-11 The Chemours Company Fc, Llc Method for exchanging heat in vapor compression heat transfer systems and vapor compression heat transfer systems comprising intermediate heat exchangers with dual-row evaporators or condensers
EP3091320A1 (de) * 2007-05-11 2016-11-09 The Chemours Company FC, LLC Dampfkompressionswärmeübertragungssystem
WO2008140809A3 (en) * 2007-05-11 2009-04-30 Du Pont Method for exchanging heat in a vapor compression heat transfer system and a vapor compression heat transfer system comprising an intermediate heat exchanger with a dual-row evaporator or condenser
US20090173085A1 (en) * 2007-12-17 2009-07-09 Mile High Equipment L.L.C. Ice-making machine with water flow sensor
US8082742B2 (en) 2007-12-17 2011-12-27 Mile High Equipment L.L.C. Ice-making machine with water flow sensor
US20120031126A1 (en) * 2010-08-06 2012-02-09 Manitowoc Foodservice Companies,Llc Control system for an ice maker
US9476632B2 (en) 2011-02-02 2016-10-25 Robert Almblad Positive air pressure ice making and dispensing system
US9003824B2 (en) 2011-02-02 2015-04-14 Robert Almblad Positive air pressure ice making and dispensing system
US9557086B2 (en) 2011-02-02 2017-01-31 Robert Almblad Positive air pressure ice making and dispensing system
US10190811B2 (en) 2011-02-02 2019-01-29 Robert Almblad Positive air pressure ice making and dispensing system
US10605514B2 (en) 2011-02-02 2020-03-31 Robert Almblad Positive air pressure ice making and dispensing system
WO2012106484A2 (en) 2011-02-02 2012-08-09 Robert Amblad Positive air pressure ice making and dispensing system
US9625199B2 (en) 2012-07-11 2017-04-18 Mainitowoc Foodservice Companies, Llc Methods and apparatus for adjusting ice slab bridge thickness and initiate ice harvest following the freeze cycle
EP2685182A3 (de) * 2012-07-11 2014-08-13 Manitowoc Foodservice Companies, LLC Verfahren und Vorrichtung zur Einstellung der Eistafelbrückendicke und Einleitung der Eisernte nach dem Gefrierzyklus

Also Published As

Publication number Publication date
JPS5522711B2 (de) 1980-06-18
FR2247685B1 (de) 1978-10-13
FR2247685A1 (de) 1975-05-09
GB1455059A (en) 1976-11-10
JPS5088648A (de) 1975-07-16
DE2449026A1 (de) 1975-04-30

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