WO2001007846A1 - Ice machine - Google Patents

Ice machine Download PDF

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Publication number
WO2001007846A1
WO2001007846A1 PCT/IB2000/001060 IB0001060W WO0107846A1 WO 2001007846 A1 WO2001007846 A1 WO 2001007846A1 IB 0001060 W IB0001060 W IB 0001060W WO 0107846 A1 WO0107846 A1 WO 0107846A1
Authority
WO
WIPO (PCT)
Prior art keywords
ice
cylinder
production machine
inner cylinder
ice production
Prior art date
Application number
PCT/IB2000/001060
Other languages
French (fr)
Inventor
Kjartan Ragnarsson
Original Assignee
Iskerfi Hf
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 Iskerfi Hf filed Critical Iskerfi Hf
Priority to AU63094/00A priority Critical patent/AU6309400A/en
Publication of WO2001007846A1 publication Critical patent/WO2001007846A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/045—Production of frozen sweets, e.g. ice-cream of slush-ice, e.g. semi-frozen beverage
    • 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
    • F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
    • F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
    • F25C1/145—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the inner walls of cooled bodies
    • F25C1/147—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the inner walls of cooled bodies by using augers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F25C2400/00—Auxiliary features or devices for producing, working or handling ice
    • F25C2400/02—Freezing surface state

Definitions

  • the present invention relates to an ice generating machine, in particular a machine for producing flowable ice.
  • aqueous solutions than brine can be used. Normally, the brine will be pre- cooled below O°C prior to passing to the ice generation cylinder.
  • a flowable ice producing machine comprising:
  • scraping means for scraping ice formed in the internal bore and • a pump for pumping aqueous solution to the cylinder and ice from the cylinder;
  • the cylinder is of aluminium or light alloy.
  • the ice generation cylinder includes an outer cylinder and end plates welded to the inner cylinder to provide an outer cooling space for receiving the refrigerant to cool the cylinder
  • the cylinder In order to avoid electrolytic corrosion of the cylinder, it is preferably isolated, by use of plastics material end caps and one or more plastics material scrappers in contact with the bore.
  • the internal bore is treated to provide a surface layer isolating the aqueous solution.
  • This can enhance the isolation of the corrosion prone metal of the cylinder from the aqueous solution. Further it can enhance the hardness and lower the surface coefficient of friction, both of which are advantageous as regards the scraper in contact with the bore.
  • the preferred surface treatment is hard anodising. Preferably this is augmented by deposition of a friction reducing substance, in particular PTFE. Alternatively, the friction reducing substance can be used without initial hard anodising.
  • the cylinder is preferably honed prior to hard anodising and subsequently polished again in a honing machine.
  • the outer surface of the cylinder can be provided with surface undulations, such as ribs or fins.
  • surface undulations such as ribs or fins.
  • a similar effect can be achieved that the outer surface has shallow porosity.
  • Figure 1 is a block diagram of an ice producing machine of the invention
  • Figure 2 is a cross-sectional view of an ice generator of the machine of Figure 1
  • Figure 3 is a cross-sectional end view on the line III-III in Figure 2 of a finned variant.
  • the ice producing machine shown in the drawings is arranged for use on board ship, as will be apparent from the use of sea water. However, its adaptation for use on land will be apparent to the man skilled in the art. It has a refrigeration unit 1, including:
  • a condenser 13 for condensing the compressed gaseous refrigerant 3 to liquid 4, the condenser being cooled by sea water 5; • a refrigerant heat exchanger 15 for further cooling the liquid refrigerant with spent gaseous refrigerant 6;
  • the ice generator 2 includes an inner aluminium cylinder 22, having an outer cooling space provided around it by an outer cylinder 23 and end plates 24, all these parts being of aluminium and welded together.
  • the internal bore 25 is hard anodised and PTFE treated. Its production will be described in more detail below.
  • the cylinder has upper and lower, plastics material end caps 26,27, each including a brine passage 28 and a bearing 29 sealed 30 from the interior of the generator and supporting a shaft 31 passing therethrough. This shaft supports a pair of upper and lower scrapers 32, which are driven in rotation around the internal bore 25 of the cylinder 22.
  • the scrapers are pivotally supported on and extend forwards in the direction of rotation from radial studs 33 fast with the shaft in such a way that water pressure on them due to rotation urges their edges into scrapping contact with the internal bore 25.
  • a motor 34 is provided on the upper cap 26 for driving the scrapper shaft.
  • the latter and the studs 33 are of stainless steel, but the scrapers 32 are of plastics material.
  • brine 8 - in fact sea water - is pumped 35 through the pre-cooler 21, where it is cooled to below 0°C by the refrigerant
  • the brine is passed into the ice generation cylinder 22, where it is cooled further in contact with the interior 25 of the cylinder.
  • the brine and any ice crystals forming are continuously scraped from the interior bore by the scrappers, which traverse the entire inside surface of the cylinder between the end caps. Ice crystals form and grow in the body of the brine in the cylinder.
  • the crystals and remaining brine 9 is driven from the generator by the action of the pump 35.
  • the refrigerant 8 fed to the aluminium ice generator 2 can be at -10&C, which compares with -19&C as would be required for an equivalent stainless steel ice generator. This enables the machine to utilise a small, more economic refrigeration unit. Alternatively, an increase of the order of 40% more ice output can be achieved for the same refrigeration energy input.
  • the scrappers are of polyamide and set up with their pivot axes and the central axis of the shaft 31 truly parallel with the central axis of the cylinder. With this treatment, no corrosion of the cylinder is experienced and good ice production is achieved.
  • the variant shown in Figure 3 has longitudinally extending fins 50, which increase the outer surface area of the inner cylinder and enhance its heat transfer properties. This is further enhanced by rendering the outer surface porous to a depth of lmm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

A flowable ice production machine, the machine includes a refrigeration unit (1) for supplying cold refrigerant and an ice generator (2). This has an inner cylinder (22) having an internal bore for ice generation. An outer cylinder (23) and end plates (24) are welded to the inner cylinder to provide an outer cooling space for receiving the refrigerant to cool the cylinder the outer surface of the inner cylinder. Within the bore of the inner cylinder, scrapers (32) are provided for scraping off ice formed in the internal bore. The inner cylinder is of aluminium alloy, honed, hard anodised and treated with PTFE for corrosion resistance and ready removal of ice.

Description

ICE MACHINE
The present invention relates to an ice generating machine, in particular a machine for producing flowable ice.
It is known from US Patent No. 4,551 , 159 to produce ice crystals in brine by:
• passing the brine into a cooled ice generation cylinder,
• scraping away from the cooled wall of the cylinder both any ice crystals formed on the wall and the brine cooled against the wall by means of a scrapper continuously rotated around the wall,
• allowing ice crystals to form in the cylinder and
• removing the brine and ice from the cylinder.
Other aqueous solutions than brine can be used. Normally, the brine will be pre- cooled below O°C prior to passing to the ice generation cylinder.
Production of ice by this method is limited by the rate of heat transfer from the brine via the cooled cylinder. Conventionally, stainless steel cylinders have been used. However, stainless steel is a relatively poor thermal conductor, with the result that for a given heat flux, the external wall of the cylinder must be cooled to a lower temperature than would otherwise be necessary for a metal having a higher conductivity. Nevertheless, the aggressively corrosive nature of brine has appeared to render use of other metals highly undesirable. The problem of corrosion is alluded to in US Patent No 5,383,342, where a magnet at the inlet to the ice generation cylinder is said to reduce corrosion. Further it is known that aluminium should not be used for sea water heat exchangers on board ship.
However, we have experimented with aluminium ice generation cylinders and surprisingly found that corrosion can be avoided. Since the conductivity of aluminium is an order of magnitude higher than that of stainless steel, we are anticipating substantial improvements in thermal efficiency. In particular since we expect to be able to cool the outside of the cylinder with refrigerant at a higher temperature than previously, we expect to be able to use smaller refrigeration equipment for the same ice output. This is a further surprising advantage. According to the invention there is provided a flowable ice producing machine, the machine comprising:
• a refrigeration unit for supplying cold refrigerant; • an ice generation cylinder having:
• an inner cylinder having an internal bore for ice generation, the outer surface of the inner cylinder being arranged for cooling thereof by the cold refrigerant,
• scraping means for scraping ice formed in the internal bore and • a pump for pumping aqueous solution to the cylinder and ice from the cylinder; wherein
• the cylinder is of aluminium or light alloy.
Preferably, the ice generation cylinder includes an outer cylinder and end plates welded to the inner cylinder to provide an outer cooling space for receiving the refrigerant to cool the cylinder
In order to avoid electrolytic corrosion of the cylinder, it is preferably isolated, by use of plastics material end caps and one or more plastics material scrappers in contact with the bore.
Preferably, the internal bore is treated to provide a surface layer isolating the aqueous solution. This can enhance the isolation of the corrosion prone metal of the cylinder from the aqueous solution. Further it can enhance the hardness and lower the surface coefficient of friction, both of which are advantageous as regards the scraper in contact with the bore.
The preferred surface treatment is hard anodising. Preferably this is augmented by deposition of a friction reducing substance, in particular PTFE. Alternatively, the friction reducing substance can be used without initial hard anodising. The cylinder is preferably honed prior to hard anodising and subsequently polished again in a honing machine.
To enhance heat transfer between the inner cylinder and the refrigerant, the outer surface of the cylinder can be provided with surface undulations, such as ribs or fins. Alternatively, a similar effect can be achieved that the outer surface has shallow porosity.
To help understanding of the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawings, in which:
Figure 1 is a block diagram of an ice producing machine of the invention; Figure 2 is a cross-sectional view of an ice generator of the machine of Figure 1; and Figure 3 is a cross-sectional end view on the line III-III in Figure 2 of a finned variant.
The ice producing machine shown in the drawings is arranged for use on board ship, as will be apparent from the use of sea water. However, its adaptation for use on land will be apparent to the man skilled in the art. It has a refrigeration unit 1, including:
• a compressor 11 for compressing evaporated refrigerant 10;
• a condenser 13 for condensing the compressed gaseous refrigerant 3 to liquid 4, the condenser being cooled by sea water 5; • a refrigerant heat exchanger 15 for further cooling the liquid refrigerant with spent gaseous refrigerant 6;
• evaporation valves 17, 18 downstream of both an ice generator 2 and a sea water pre-cooler 21, the spent refrigerant 6 from the ice generator and the evaporation valve 17 passing to the refrigerant heat exchanger 15 to cool the liquefied refrigerant below the sea water temperature to which it was cooled in the condenser and thence back to the compressor, whilst the spent refrigerant 7 from the sea water pre-cooler 21 passes directly back to the compressor. The man skilled in the art will appreciate that control of the refrigerant unit will require a number of conventional components, which have not been further described since they are essentially conventional.
The ice generator 2 includes an inner aluminium cylinder 22, having an outer cooling space provided around it by an outer cylinder 23 and end plates 24, all these parts being of aluminium and welded together. The internal bore 25 is hard anodised and PTFE treated. Its production will be described in more detail below. The cylinder has upper and lower, plastics material end caps 26,27, each including a brine passage 28 and a bearing 29 sealed 30 from the interior of the generator and supporting a shaft 31 passing therethrough. This shaft supports a pair of upper and lower scrapers 32, which are driven in rotation around the internal bore 25 of the cylinder 22. The scrapers are pivotally supported on and extend forwards in the direction of rotation from radial studs 33 fast with the shaft in such a way that water pressure on them due to rotation urges their edges into scrapping contact with the internal bore 25. A motor 34 is provided on the upper cap 26 for driving the scrapper shaft. The latter and the studs 33 are of stainless steel, but the scrapers 32 are of plastics material. Thus it can be seen that the aluminium of the ice generating cylinder is not in electrolytic contact with any other metallic component in contact with brine within the cylinder.
In use, brine 8 - in fact sea water - is pumped 35 through the pre-cooler 21, where it is cooled to below 0°C by the refrigerant The brine is passed into the ice generation cylinder 22, where it is cooled further in contact with the interior 25 of the cylinder. The brine and any ice crystals forming are continuously scraped from the interior bore by the scrappers, which traverse the entire inside surface of the cylinder between the end caps. Ice crystals form and grow in the body of the brine in the cylinder. The crystals and remaining brine 9 is driven from the generator by the action of the pump 35.
The refrigerant 8 fed to the aluminium ice generator 2 can be at -10&C, which compares with -19&C as would be required for an equivalent stainless steel ice generator. This enables the machine to utilise a small, more economic refrigeration unit. Alternatively, an increase of the order of 40% more ice output can be achieved for the same refrigeration energy input.
The aluminium cylinder 22 is of AlMg3Si0.5 and was honed truly parallel to a surface roughness of R2< 0.3 μm. Then it was hard anodised, with PTFE treatment, to a thickness of 50 μm. Again it was polished to a surface roughness of Rz= 0.6μm. The scrappers are of polyamide and set up with their pivot axes and the central axis of the shaft 31 truly parallel with the central axis of the cylinder. With this treatment, no corrosion of the cylinder is experienced and good ice production is achieved.
The variant shown in Figure 3 has longitudinally extending fins 50, which increase the outer surface area of the inner cylinder and enhance its heat transfer properties. This is further enhanced by rendering the outer surface porous to a depth of lmm.
The invention is not intended to be restricted to the details of the above described embodiment. For instance where the bore of the inner cylinder is not to be hard anodised, a different aluminium alloy which is suitable for direct deposition of PTFE can be used.

Claims

CLAIMS:
1. A flowable ice production machine, the machine comprising
• a refrigeration unit for supplying cold refrigerant,
• an ice generation cylinder having • an inner cylinder having an internal bore for ice generation, the outer surface of the inner cylinder being arranged for cooling thereof by the cold refrigerant,
• scraping means for scraping ice formed in the internal bore and
• a pump for pumping aqueous solution to the cylinder and ice from the cylinder; wherein
• the cylinder is of aluminium or light alloy
2. An ice production machine as claimed in claim 1, wherein the ice generation cylinder includes an outer cylinder and end plates welded to the inner cylinder to provide an outer cooling space for receiving the refrigerant to cool the cylinder
3. An ice production machine as claimed in claim 1 or claim 2, including electrically insulating end caps, preferably of plastics material
4. An ice production machine as claimed in claim 1 , claim 2 or claim 3, wherein the scraping means includes electrically insulating scrapers for scraping ice from the internal bore.
5. An ice production machine as claimed in claim in any preceding claim, wherein the internal bore is treated to provide a surface layer isolating the aqueous solution from the body of the inner cylinder
6. An ice production machine as claimed in claim 5, wherein the surface treatment is hard anodising.
7. An ice production machine as claimed in claim 6, wherein internal bore is honed prior to hard anodising and subsequently polished again in a honing machine
8. An ice production machine as claimed in claim 5, wherein the surface treatment is deposition of a friction reducing substance
9. An ice production machine as claimed in claim 6 or claim 7, wherein the surface treatment hard anodising followed by PTFE deposit
10. An ice production machine as claimed in any preceding claim, wherein the outer surface of the inner cylinder has surface undulations, such as ribs or fins
11. An ice production machine as claimed in any preceding claim, wherein the outer surface of the inner cylinder has shallow porosity
12. An ice generation cylinder for an ice production machine as claimed in any preceding claim, the cylinder being of aluminium or light alloy
PCT/IB2000/001060 1999-07-28 2000-07-28 Ice machine WO2001007846A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63094/00A AU6309400A (en) 1999-07-28 2000-07-28 Ice machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9917652.1 1999-07-28
GBGB9917652.1A GB9917652D0 (en) 1999-07-28 1999-07-28 Liquid ice generator

Publications (1)

Publication Number Publication Date
WO2001007846A1 true WO2001007846A1 (en) 2001-02-01

Family

ID=10858043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/001060 WO2001007846A1 (en) 1999-07-28 2000-07-28 Ice machine

Country Status (3)

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AU (1) AU6309400A (en)
GB (1) GB9917652D0 (en)
WO (1) WO2001007846A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014757A1 (en) * 2000-08-11 2002-02-21 Paul Mueller Company Bimetallic tube in a heat exchanger of an ice making machine
WO2012092929A1 (en) * 2011-01-06 2012-07-12 Tetra Laval Holdings & Finance S.A. Optimised surface for freezing cylinder
CN104034186A (en) * 2014-06-24 2014-09-10 中国神华能源股份有限公司 Heat exchanger
CN107655248A (en) * 2017-10-20 2018-02-02 中国科学院广州能源研究所 A kind of fluid state ice ice making bucket
IT201700038243A1 (en) * 2017-04-06 2018-10-06 Ali Group Srl Carpigiani ALLOCATED EVAPORATOR.
WO2019140495A1 (en) * 2018-01-17 2019-07-25 Hadziibrisevic Nurset Cylindrical chamber heat exchanger
US20200173700A1 (en) * 2018-11-29 2020-06-04 Industria Tecnica Valenciana, S.A. Evaporator for an ice machine
WO2020215130A1 (en) * 2019-04-23 2020-10-29 Hadziibrisevic Nusret Chamber heat exchanger with the ice removal mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551159A (en) 1979-04-03 1985-11-05 Vladimir Goldstein Ice making machine and method
FR2629903A1 (en) * 1988-04-06 1989-10-13 Anhydride Carbonique Ind Process and plant for the production of ground solid carbon dioxide from liquid carbon dioxide
EP0503274A1 (en) * 1991-03-08 1992-09-16 Carpigiani S.r.L. Stirring device for machines for the manufacture of ice-cream
US5383342A (en) 1992-05-14 1995-01-24 Ontec Ltd. Method and installation for continuous production of liquid ice
EP0670461A1 (en) * 1994-03-04 1995-09-06 G.R.B. S.n.c. di Grotti Renzo &amp; C. Freezing drum with built-in evaporator and method for the manufacture thereof
US5735136A (en) * 1995-09-11 1998-04-07 Howe Corporation Flake freezing machine and system using same
US5884501A (en) * 1996-04-19 1999-03-23 Goldstein; Vladimir Ice-making machine and heat exchanger therefor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551159A (en) 1979-04-03 1985-11-05 Vladimir Goldstein Ice making machine and method
FR2629903A1 (en) * 1988-04-06 1989-10-13 Anhydride Carbonique Ind Process and plant for the production of ground solid carbon dioxide from liquid carbon dioxide
EP0503274A1 (en) * 1991-03-08 1992-09-16 Carpigiani S.r.L. Stirring device for machines for the manufacture of ice-cream
US5383342A (en) 1992-05-14 1995-01-24 Ontec Ltd. Method and installation for continuous production of liquid ice
EP0670461A1 (en) * 1994-03-04 1995-09-06 G.R.B. S.n.c. di Grotti Renzo &amp; C. Freezing drum with built-in evaporator and method for the manufacture thereof
US5735136A (en) * 1995-09-11 1998-04-07 Howe Corporation Flake freezing machine and system using same
US5884501A (en) * 1996-04-19 1999-03-23 Goldstein; Vladimir Ice-making machine and heat exchanger therefor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014757A1 (en) * 2000-08-11 2002-02-21 Paul Mueller Company Bimetallic tube in a heat exchanger of an ice making machine
US6477846B2 (en) 2000-08-11 2002-11-12 Paul Mueller Company Bimetallic tube in a heat exchanger of an ice making machine
WO2012092929A1 (en) * 2011-01-06 2012-07-12 Tetra Laval Holdings & Finance S.A. Optimised surface for freezing cylinder
CN104034186A (en) * 2014-06-24 2014-09-10 中国神华能源股份有限公司 Heat exchanger
IT201700038243A1 (en) * 2017-04-06 2018-10-06 Ali Group Srl Carpigiani ALLOCATED EVAPORATOR.
EP3384781A1 (en) * 2017-04-06 2018-10-10 Ali Group S.r.l. - Carpigiani Flooded evaporator
US10660349B2 (en) 2017-04-06 2020-05-26 Ali Group S.R.L.—Carpigiani Flooded evaporator
CN107655248A (en) * 2017-10-20 2018-02-02 中国科学院广州能源研究所 A kind of fluid state ice ice making bucket
WO2019140495A1 (en) * 2018-01-17 2019-07-25 Hadziibrisevic Nurset Cylindrical chamber heat exchanger
US20200173700A1 (en) * 2018-11-29 2020-06-04 Industria Tecnica Valenciana, S.A. Evaporator for an ice machine
WO2020215130A1 (en) * 2019-04-23 2020-10-29 Hadziibrisevic Nusret Chamber heat exchanger with the ice removal mechanism

Also Published As

Publication number Publication date
GB9917652D0 (en) 1999-09-29
AU6309400A (en) 2001-02-13

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