WO2012092929A1 - Optimised surface for freezing cylinder - Google Patents
Optimised surface for freezing cylinder Download PDFInfo
- Publication number
- WO2012092929A1 WO2012092929A1 PCT/DK2011/050515 DK2011050515W WO2012092929A1 WO 2012092929 A1 WO2012092929 A1 WO 2012092929A1 DK 2011050515 W DK2011050515 W DK 2011050515W WO 2012092929 A1 WO2012092929 A1 WO 2012092929A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- freezing cylinder
- cooling fins
- grooves
- cylinder according
- flow
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
-
- 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
- A23G9/14—Continuous production
- A23G9/16—Continuous production the products being within a cooled chamber, e.g. drum
-
- 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
- A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
- A23G9/222—Freezing drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
-
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/087—Heat exchange elements made from metals or metal alloys from nickel or nickel alloys
Definitions
- the present invention relates to a freezing cylinder for use, for instance, in an apparatus for the production of frozen ice cream.
- freezers In the production of edible ice cream products, it is well-known to use so-called through-flow freezers. Often, such freezers comprise a freezing cylinder through which the ice cream mass is transported, typically by pumping or by means of a conveyor screw. The freezing cylinder is being cooled from its outside using a liquid coolant such as, for instance, ammonia ( 1 ⁇ 4), carbon dioxide (C0 2 ) or some sort of Freon, such as R404a. During the freezing process, the coolant absorbs heat energy from the outer cylinder surface mainly due to a phase-shift from liquid to gaseous phase of the coolant, whereby tiny gas bubbles containing evaporated coolant are formed on the outer cylinder surface.
- a liquid coolant such as, for instance, ammonia ( 1 ⁇ 4), carbon dioxide (C0 2 ) or some sort of Freon, such as R404a.
- the cooling efficiency of such a system depends on a number of factors.
- One important factor is the area of the cylinder surface to be cooled, which can be increased by well-known means, such as the use of cooling fins extending from the surface.
- the area of the cylinder surface to be cooled which can be increased by well-known means, such as the use of cooling fins extending from the surface.
- other factors affecting the evaporation rate, the size of the bubbles and the rate at which the bubbles leave the cylinder surface through the still liquid coolant are important for the efficiency of the cooling system. This is due to the fact that bubbles staying at the cylinder surface form an insulating layer between the cylinder surface and the liquid coolant, thus reducing the transportation of heat energy from the cylinder surface to the liquid coolant.
- the surface structure may be improved for a better cooling efficiency by means of so-called nano coating.
- nano coating This is a very expensive way of obtaining a better cooling efficiency.
- EP 0670461 Al discloses a freezing drum, in which a cylindrical freezing chamber is coaxially positioned inside a cylindrical external jacket, wherein a spiral-shaped path is provided in the hollow space between the jacket and the chamber, through which path a thermal exchange fluid circulates from an inlet to an outlet.
- the present invention relates to a through-flow freezing cylinder comprising on its outer surface a set of substantially parallel tangential cooling fins and a set of substantially parallel grooves intersecting the set of cooling fins.
- the use of the present invention does not involve a thermal exchange fluid circulating along a predefined path in a hollow space between a freezing chamber and an external jacket. Rather, a thermal exchange fluid in the form of a liquid coolant must simply be placed to be in contact with the outer surface of the freezing cylinder as described further below. This means that there are no requirements relating to the shape of an external jacket, in which the freezing cylinder may be placed or to the positioning of the freezing cylinder in relation to such a jacket.
- the freezing efficiency of a through-flow freezer comprising the freezing cylinder can be increased by up to about 20 % without increasing the size of the freezer.
- the grooves intersect the cooling fins at an angle of more than 30°, preferably at an angle of more than 60°, most preferably at a substantially right angle.
- the cooling fins and the grooves are oriented tangentially and axially, respectively, in relation to the freezing cylinder.
- this configuration of the cooling fins and the grooves requires a relatively simple set-up of tools, for instance for machining the grooves.
- the cooling fins have a substantially triangular cross-sectional shape.
- the maximum height of the cooling fins is between 0.5 mm and 10 mm, preferably between 1 mm and 5 mm, most preferably between 2.5 mm and 3.5 mm.
- the mutual distance between the centrelines of two neighbouring cooling fins is between 0.5 mm and 10 mm, preferably between 1 mm and 5 mm, most preferably between 2.5 mm and 3.5 mm.
- the maximum width of the cooling fins is between 0.5 mm and 10 mm, preferably between 1 mm and 5 mm, most preferably between 2.5 mm and 3.5 mm.
- the mutual distance and the maximum width of the cooling fins are substantially the same.
- the grooves have a substantially rectangular cross-sectional shape.
- the mutual distance between two neighbouring grooves is between 1 mm and 12 mm, preferably between 2 mm and 10 mm, most preferably between 5 mm and 7 mm.
- the maximum width of the grooves is between 0.2 mm and 4 mm, preferably between 0.5 mm and 2 mm, most preferably between 0.8 mm and 1.2 mm.
- the maximum depth of the grooves is between 0.2 mm and 6 mm, preferably between 0.5 mm and 6 mm, most preferably between 2 mm and 3 mm.
- the optimum freezing efficiency is obtained by choosing the properties of the cooling fins and the grooves within the above-specified ranges.
- the grooves are machined. Machining the grooves (and often also the cooling fins) rather than casting a complete freezing cylinder with cooling fins and intersecting grooves is
- the through-flow freezing cylinder is made from nickel, brass, stainless steel or black steel. Making the freezing cylinder from nickel is advantageous in that nickel has high specific heat conductivity.
- ammonia which is one of the preferred cooling media in through-flow freezers of the type comprising freezing cylinders like the one of the present invention
- the ammonia will react with the copper in the brass alloy, which can destroy the structure made from the brass.
- another cooling media such as carbon dioxide or Freon, is to be used, the freezing cylinder may
- brass which is substantially less expensive than nickel. Like nickel, brass has high specific heat conductivity.
- the freezing cylinder may also be made from stainless steel, which is less expensive than nickel and brass. However, the use of stainless steel results in a lower freezing capacity due to the relatively poor heat transfer capabilities of this material.
- the freezing cylinder will be coated on the inner side of its wall with a layer of hard chrome or the like in order to make it more wear-resistant.
- fig. 1 illustrates schematically a cross-section of a through-flow freezer
- fig. 2 illustrates schematically the structure of an outer surface of a freezing cylinder according to an embodiment of the invention.
- Fig. 1 illustrates schematically a cross-section of a through-flow freezer 1 in which a freezing cylinder 3 according to an embodiment of the invention is placed inside an outer cylinder 2.
- the distance between the walls of the two cylinders 2, 3, respectively, will often be relatively small, such as between 10 mm and 40 mm.
- the outer surface of the freezing cylinder 3 is provided with a number of tangentially oriented cooling fins 4, which are intersected by a number of longitudinally oriented grooves 5.
- the mass 6 to be frozen for instance edible ice cream mass 6, is transported through the freezing cylinder 3.
- one or more scrapers scrape the layer of frozen ice cream mass 6 continuously formed on the inner surface of the freezing cylinder 3 off the cylinder wall.
- a liquid coolant 7 is placed in the cavity between the inner surface of the outer cylinder 2 and the outer surface of the freezing cylinder 3 for cooling the freezing cylinder 3 and its contents 6 by absorbing heat energy from the freezing cylinder 3, mainly due to a phase-shift from liquid to gas phase of some of the coolant 7.
- the freezing cylinder 3 is typically made from nickel, brass, stainless steel or black steel depending on the type of coolant 7 with which it is meant to be used.
- Brass is an alloy of copper and zinc. Ammonia reacts with copper resulting in the formation of cracks in brass structures in contact with ammonia. Eventually, such structures may collapse. Therefore, the use of ammonia as coolant 7 generally requires that the freezing cylinder 3 is made from nickel or steel.
- Fig. 2 illustrates schematically the structure of an outer surface of a freezing cylinder 3 according to an embodiment of the invention in which a plurality of parallel and tangentially oriented cooling fins 4 are intersected by a number of parallel and longitudinally oriented grooves 5.
- the cooling efficiency can be optimized by choosing the height of the cooling fins 4 to be about 3 mm, the width and depth of the intersecting grooves 5 to be approximately 1 mm and 2.5 mm, respectively, and the mutual distance between two neighbouring grooves 5 to be between 5 mm and 7 mm.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/978,410 US20130319645A1 (en) | 2011-01-06 | 2011-12-22 | Optimised surface for freezing cylinder |
CN201180064267.1A CN103327825B (en) | 2011-01-06 | 2011-12-22 | For the surface of the optimization of freezing jar |
MX2013007788A MX2013007788A (en) | 2011-01-06 | 2011-12-22 | Optimised surface for freezing cylinder. |
EP11808570.3A EP2661177A1 (en) | 2011-01-06 | 2011-12-22 | Optimised surface for freezing cylinder |
BR112013016867A BR112013016867A2 (en) | 2011-01-06 | 2011-12-22 | bypass freezing cylinder |
RU2013136395/13A RU2592570C2 (en) | 2011-01-06 | 2011-12-22 | Optimised surface for freezing cylinder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201170004 | 2011-01-06 | ||
DKPA201170004A DK177178B1 (en) | 2011-01-06 | 2011-01-06 | Optimized surface for freezing cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012092929A1 true WO2012092929A1 (en) | 2012-07-12 |
Family
ID=45491191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2011/050515 WO2012092929A1 (en) | 2011-01-06 | 2011-12-22 | Optimised surface for freezing cylinder |
Country Status (8)
Country | Link |
---|---|
US (1) | US20130319645A1 (en) |
EP (1) | EP2661177A1 (en) |
CN (1) | CN103327825B (en) |
BR (1) | BR112013016867A2 (en) |
DK (1) | DK177178B1 (en) |
MX (1) | MX2013007788A (en) |
RU (1) | RU2592570C2 (en) |
WO (1) | WO2012092929A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015028725A1 (en) * | 2013-08-30 | 2015-03-05 | Gea Réfrigération France | Device for generating ice, using a double-walled cylindrical exchanger, of which an inner wall is a bi-material wall |
IT201800006520A1 (en) * | 2018-06-20 | 2019-12-20 | HEAT EXCHANGER. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062021A (en) * | 1960-12-12 | 1962-11-06 | Ansel B Grose | Device for dispensing frozen fluffy cream and the like |
DE2359710A1 (en) * | 1973-02-07 | 1974-08-08 | Egidio Prizzon | Continuous ice-cream prodn. appts - with pre-mixing element for the liq. starting material which is continuously fed in measured amts. to a cooled, mixing chamber |
US3893322A (en) * | 1974-08-21 | 1975-07-08 | Universal Oil Prod Co | Method for providing improved nucleate boiling surfaces |
EP0670461A1 (en) | 1994-03-04 | 1995-09-06 | G.R.B. S.n.c. di Grotti Renzo & C. | Freezing drum with built-in evaporator and method for the manufacture thereof |
EP1035387A1 (en) * | 1999-03-10 | 2000-09-13 | Speciality Equipment Companies Inc. | High efficiency refrigeration system |
WO2001007846A1 (en) * | 1999-07-28 | 2001-02-01 | Iskerfi Hf | Ice machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US3326283A (en) * | 1965-03-29 | 1967-06-20 | Trane Co | Heat transfer surface |
SU485297A1 (en) * | 1974-03-01 | 1975-09-25 | Центральный Научно-Исследовательский Котлотурбинный Институт Им.И.И. Ползунова | Heat exchanger tube |
US4330036A (en) * | 1980-08-21 | 1982-05-18 | Kobe Steel, Ltd. | Construction of a heat transfer wall and heat transfer pipe and method of producing heat transfer pipe |
US4402359A (en) * | 1980-09-15 | 1983-09-06 | Noranda Mines Limited | Heat transfer device having an augmented wall surface |
US5203404A (en) * | 1992-03-02 | 1993-04-20 | Carrier Corporation | Heat exchanger tube |
DE59403306D1 (en) * | 1994-02-26 | 1997-08-14 | Heidenhain Gmbh Dr Johannes | Interferometer |
JP3415013B2 (en) * | 1997-12-22 | 2003-06-09 | 株式会社神戸製鋼所 | Heat transfer tube for condenser |
ITBO20050706A1 (en) * | 2005-11-22 | 2007-05-23 | Ali Spa | METHOD FOR MANUFACTURING A FREEZING CHAMBER AND FREEZING CHAMBER SO IT HAS OBTAINED |
RU2305949C1 (en) * | 2005-12-16 | 2007-09-20 | Федеральное государственное унитарное предприятие УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ | Freezing cylinder for ice-cream making machine |
JP2009162395A (en) * | 2007-12-28 | 2009-07-23 | Showa Denko Kk | Double-wall-tube heat exchanger |
-
2011
- 2011-01-06 DK DKPA201170004A patent/DK177178B1/en active
- 2011-12-22 WO PCT/DK2011/050515 patent/WO2012092929A1/en active Application Filing
- 2011-12-22 RU RU2013136395/13A patent/RU2592570C2/en not_active IP Right Cessation
- 2011-12-22 EP EP11808570.3A patent/EP2661177A1/en not_active Ceased
- 2011-12-22 US US13/978,410 patent/US20130319645A1/en not_active Abandoned
- 2011-12-22 CN CN201180064267.1A patent/CN103327825B/en active Active
- 2011-12-22 BR BR112013016867A patent/BR112013016867A2/en not_active IP Right Cessation
- 2011-12-22 MX MX2013007788A patent/MX2013007788A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062021A (en) * | 1960-12-12 | 1962-11-06 | Ansel B Grose | Device for dispensing frozen fluffy cream and the like |
DE2359710A1 (en) * | 1973-02-07 | 1974-08-08 | Egidio Prizzon | Continuous ice-cream prodn. appts - with pre-mixing element for the liq. starting material which is continuously fed in measured amts. to a cooled, mixing chamber |
US3893322A (en) * | 1974-08-21 | 1975-07-08 | Universal Oil Prod Co | Method for providing improved nucleate boiling surfaces |
EP0670461A1 (en) | 1994-03-04 | 1995-09-06 | G.R.B. S.n.c. di Grotti Renzo & C. | Freezing drum with built-in evaporator and method for the manufacture thereof |
EP1035387A1 (en) * | 1999-03-10 | 2000-09-13 | Speciality Equipment Companies Inc. | High efficiency refrigeration system |
WO2001007846A1 (en) * | 1999-07-28 | 2001-02-01 | Iskerfi Hf | Ice machine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015028725A1 (en) * | 2013-08-30 | 2015-03-05 | Gea Réfrigération France | Device for generating ice, using a double-walled cylindrical exchanger, of which an inner wall is a bi-material wall |
FR3010176A1 (en) * | 2013-08-30 | 2015-03-06 | Gea Refrigeration France | ICE GENERATING DEVICE, IMPLEMENTING A DOUBLE-WALL CYLINDRICAL EXCHANGER, INCLUDING A BI-MATERIAL INTERNAL WALL |
IT201800006520A1 (en) * | 2018-06-20 | 2019-12-20 | HEAT EXCHANGER. | |
EP3583854A1 (en) * | 2018-06-20 | 2019-12-25 | Ali Group S.r.l. - Carpigiani | Heat exchanger |
US11187443B2 (en) | 2018-06-20 | 2021-11-30 | Ali Group S.R.L.—Carpigiani | Heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
BR112013016867A2 (en) | 2016-10-11 |
CN103327825B (en) | 2016-06-15 |
RU2592570C2 (en) | 2016-07-27 |
CN103327825A (en) | 2013-09-25 |
RU2013136395A (en) | 2015-02-20 |
EP2661177A1 (en) | 2013-11-13 |
DK177178B1 (en) | 2012-05-07 |
US20130319645A1 (en) | 2013-12-05 |
MX2013007788A (en) | 2013-08-21 |
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