DE2804236A1 - REFRIGERATOR FOR FOOD - Google Patents
REFRIGERATOR FOR FOODInfo
- Publication number
- DE2804236A1 DE2804236A1 DE19782804236 DE2804236A DE2804236A1 DE 2804236 A1 DE2804236 A1 DE 2804236A1 DE 19782804236 DE19782804236 DE 19782804236 DE 2804236 A DE2804236 A DE 2804236A DE 2804236 A1 DE2804236 A1 DE 2804236A1
- Authority
- DE
- Germany
- Prior art keywords
- usable space
- food
- compartment
- refrigerator
- coolant
- 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.)
- Ceased
Links
- 239000002826 coolant Substances 0.000 claims description 7
- 239000000112 cooling gas Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 235000013361 beverage Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
- F25D3/125—Movable containers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B31/00—Service or tea tables, trolleys, or wagons
- A47B2031/004—Service or tea tables, trolleys, or wagons having four vertical uprights
- A47B2031/005—Service or tea tables, trolleys, or wagons having four vertical uprights with movable trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2202/00—Indexing codes relating to type or characteristics of transported articles
- B62B2202/67—Service trolleys, e.g. in aircraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
- F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
- F25D2303/084—Position of the cold storage material in relationship to a product to be cooled
- F25D2303/0844—Position of the cold storage material in relationship to a product to be cooled above the product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/38—Refrigerating devices characterised by wheels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
Description
BUDERUS AKTIENGESELLSCHAFT 2804236BUDERUS AKTIENGESELLSCHAFT 2804236
TP/Be/St/PG 1119 - 2 -TP / Be / St / PG 1119 - 2 -
Kühlgerät für NahrungsmittelFood refrigerator
Die Erfindung betrifft ein Kühlgerät zum Frisch- und Kühlhalten von Nahrungsmitteln, insbesondere einen Servierwagen für Flugzeuge, bestehend aus einem Nutzraum für das Kühlgut und einem über dem Nutzraum angeordneten Abteil für ein vergasendes Kühlmittel.The invention relates to a cooling device for keeping food fresh and cold, in particular a serving trolley for aircraft, consisting of a usable space for the refrigerated goods and a compartment above the usable space for a gasifier Coolant.
Als Kühlmittel wird bei solchen Geräten vorwiegend CO2 - Trockeneis benutzt, welches sublimiert und dabei der Umgebung Wärme entzieht. Das bei der Sublimation entstehende Kühlgas strömt infolge seines höheren spezifischen Gewichtes durch entsprechende Kanäle in den Nutzraum und hält die dort aufbewahrten Lebensmittel auf einer gewünschten Temperatur.The main coolant used in such devices is CO 2 dry ice, which sublimates and removes heat from the environment. Due to its higher specific weight, the cooling gas produced during sublimation flows through appropriate channels into the usable space and keeps the food stored there at the desired temperature.
In der Regel ist eine gleichmäßig niedrige Temperatur im gesamten Nutzraum erwünscht. Um dies zu erreichen, sind bereits verschiedene Schikanen vorgeschlagen worden, welche den Kühlgasstrom so aufteilen sollen, daß sich möglichst gleichmäßige Temperaturen einstellen.As a rule, a uniformly low temperature in the entire usable space is desirable. To achieve this, are already Various baffles have been proposed, which should divide the cooling gas flow so that it is as uniform as possible Set temperatures.
Die DT-OS 2 227 313 schlägt hierzu einen seitlichen Fallschacht vor, von welchem in die einzelnen Etagen des Nutzraumes unterschiedlich dosierte Partialströme abzweigen. In der DT-OS 2 238 führen verschieden dimensionierte Kanäle in die einzelnen Abteile des Nutzraumes.DT-OS 2 227 313 suggests a lateral drop shaft from which the individual floors of the usable space differ branch off metered partial flows. In DT-OS 2 238, differently dimensioned channels lead into the individual Compartments of the usable space.
Das angestrebte Ziel kann auf diese Weise aber nicht erreicht werden.However, the desired goal cannot be achieved in this way.
- 3 909*31/0473 - 3 909 * 31/0473
Es hat sich herausgestellt, daß das COp - Kühlgas sehr träge ist und jeder Strömungswiderstand, seien es Wandungen, enge Kanäle, Umlenkungen oder dgl. eine natürliche Zirkulation unterbindet.It has been found that the COp cooling gas is very sluggish and any flow resistance, be it walls, is tight Channels, diversions or the like. A natural circulation prevents.
Die Erfindung geht von der Aufgabe aus, die natürliche Zirkulation des Kühlgases in möglichst großem Umfang zu ermöglichen, weil dies die beste Gewähr für ein gutes Kühlergebnis ist. Es hat sich herausgestellt, daß dies überraschenderweise durch einfache, senkrecht verlaufende rinnenförmige Einprägungen in den seitlichen Begrenzungswänden des Nutzraumes erreicht wird, welche mit dem oberen Kühlmittelabteil in Verbindung stehen und zum Nutzraum hin über die gesamte Länge offen sind.The invention is based on the task of enabling the natural circulation of the cooling gas to the greatest possible extent, because this is the best guarantee for a good cooling result. It has been found that, surprisingly, this by means of simple, vertical, channel-shaped embossments in the side walls of the usable space is achieved, which are in communication with the upper coolant compartment and across the entire usable space Length are open.
Besonders gute Ergebnisse werden erzielt, wenn die Einprägungen in der Beschickungstür angeordnet werden und mit den seitlichen dichtungslosen Türspalten in Verbindung stehen.Particularly good results are achieved if the embossments are arranged in the loading door and with the side sealless door gaps are connected.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:An exemplary embodiment of the invention is shown in the drawing. Show it:
Fig. 1 einen Kühlservierwagen
Fig. 2 einen waagrechten und1 shows a refrigerated serving trolley
Fig. 2 shows a horizontal and
Fig. 3 einen senkrechten Schnitt im Bereich der Beschickungstür. 3 shows a vertical section in the area of the loading door.
Der quaderförmige Kühlservierwagen 1 besitzt an den beiden Stirnseiten die Beschickungstüren 2 durch welche das kühl zu haltende Gut in den Nutzraum 3 gebracht werden kann. Oberhalb des Nutzraumes 3 befindet sich das mit COp - Trockeneis füllbare Kühlmittelabteil 4, vom Nutzraum durch die Wand 5 getrennt.The cuboid refrigerated serving trolley 1 has on the two The front sides of the loading doors 2 through which the goods to be kept cool can be brought into the usable space 3. Above of the usable space 3 is the one with COp - dry ice fillable coolant compartment 4, from the usable space through the wall 5 separated.
Die Beschickungstür 2 hat auf der Innenseite zwei senkrechte Einprägungen 6, welche mit dem oberen Kühlmittelabteil 4 über die Kühlgasdurchtrittsöffnungen 7 in Verbindung stehen. Das bei der Sublimation entstehende kühle COp - Gas kann infolge seines spezifischen Gewichtes durch die Einprägungen nach unten fallen und sich in den Nutzraum 3 ausbreiten. Wegen der glatten Wände und der geringen Umlenkungen geschieht dies so, daß ein einwandfreier Nachschub von Kühlgas und damit eine gute und gleichmäßige Kühlung des Nutzraumes gewährleistet ist.The loading door 2 has two vertical indentations 6 on the inside, which are connected to the upper coolant compartment 4 the cooling gas passage openings 7 are in communication. The cool COp gas produced during sublimation can result its specific weight fall down through the impressions and spread into the usable space 3. Because of the smooth walls and the small deflections, this is done so that a proper supply of cooling gas and thus a good and uniform cooling of the usable space is guaranteed.
Eine Abdichtung der Tür ist nicht erforderlich, weil offensichtlich das im Bereich der seitlichen Türspalte 8, welche eine 90° Umlenkung aufweisen, vorbeiströmende Gas, sehr träge ist und wie ein Schleier wirkt. Die zu verdrängende Luft kann dagegen durch die Türspalte 8 entweichen, so daß auch ohne eine besondere Ausströmöffnung für die Luft, das COp - Gas sich gleichmäßig im Kühlgerät verteilen kann, nicht aber durch die Türspalte nach außen entweicht.The door does not need to be sealed because it is obvious the gas flowing past in the area of the side door gaps 8, which have a 90 ° deflection is sluggish and acts like a veil. The air to be displaced, however, can escape through the door gap 8, so that even without a special outflow opening for the air, the COp gas can be evenly distributed in the cooling device but escapes through the crack in the door.
Mit einfachsten Maßnahmen kann auf diese Weise ein Ergebnis erreicht werden, was man vorher mit erheblichem Aufwand vergeblich versucht hat.With the simplest of measures, a result can be achieved in this way, which was previously in vain with considerable effort tried.
Claims (3)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782804236 DE2804236A1 (en) | 1978-02-01 | 1978-02-01 | REFRIGERATOR FOR FOOD |
| FR7832941A FR2416434A1 (en) | 1978-02-01 | 1978-11-22 | Carbon di:oxide cold box for food and drinks - has internal side channels promoting downwards flow of gaseous carbon di:oxide |
| IT7952814U IT7952814V0 (en) | 1978-02-01 | 1979-01-08 | COOLING DEVICE FOR FOOD PRODUCTS PARTICULARLY FOOD TROLLEY FOR AIRCRAFT |
| IT67026/79A IT1118262B (en) | 1978-02-01 | 1979-01-08 | COOLING EQUIPMENT FOR FOOD PRODUCTS PARTICULARLY TROLLEY FOR AIRCRAFT |
| NL7900194A NL7900194A (en) | 1978-02-01 | 1979-01-10 | FOOD COOLING DEVICE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782804236 DE2804236A1 (en) | 1978-02-01 | 1978-02-01 | REFRIGERATOR FOR FOOD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2804236A1 true DE2804236A1 (en) | 1979-08-02 |
Family
ID=6030881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782804236 Ceased DE2804236A1 (en) | 1978-02-01 | 1978-02-01 | REFRIGERATOR FOR FOOD |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2804236A1 (en) |
| FR (1) | FR2416434A1 (en) |
| IT (2) | IT7952814V0 (en) |
| NL (1) | NL7900194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8805753U1 (en) * | 1988-04-30 | 1989-09-07 | Rolf Rodehau GmbH & Co KG Metallwarenfabrik, 6070 Langen | Box-shaped refrigerator, especially serving trolley for commercial aircraft |
| DE202006011143U1 (en) * | 2006-07-13 | 2007-10-25 | Storopack Hans Reichenecker Gmbh | cooling box |
| EP2745062A4 (en) * | 2011-08-16 | 2015-07-22 | Ferguson Gary Wayne | Delivery container for temperature sensitive goods |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU556605B2 (en) * | 1981-11-16 | 1986-11-13 | Ptc Aerospace Inc. | Food trolley with cooling means |
| FR2696158B1 (en) * | 1992-09-29 | 1994-11-10 | Carboxyque Francaise | Insulated container, especially for transporting fresh or frozen products. |
| NL1028463C2 (en) * | 2005-03-04 | 2006-09-06 | Driessen Aerospace Group Nv | Refrigerated catering trolley for e.g. aircraft, has cooling device housed inside trolley casing |
-
1978
- 1978-02-01 DE DE19782804236 patent/DE2804236A1/en not_active Ceased
- 1978-11-22 FR FR7832941A patent/FR2416434A1/en active Granted
-
1979
- 1979-01-08 IT IT7952814U patent/IT7952814V0/en unknown
- 1979-01-08 IT IT67026/79A patent/IT1118262B/en active
- 1979-01-10 NL NL7900194A patent/NL7900194A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8805753U1 (en) * | 1988-04-30 | 1989-09-07 | Rolf Rodehau GmbH & Co KG Metallwarenfabrik, 6070 Langen | Box-shaped refrigerator, especially serving trolley for commercial aircraft |
| DE202006011143U1 (en) * | 2006-07-13 | 2007-10-25 | Storopack Hans Reichenecker Gmbh | cooling box |
| EP2745062A4 (en) * | 2011-08-16 | 2015-07-22 | Ferguson Gary Wayne | Delivery container for temperature sensitive goods |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1118262B (en) | 1986-02-24 |
| FR2416434A1 (en) | 1979-08-31 |
| IT7967026A0 (en) | 1979-01-08 |
| FR2416434B3 (en) | 1981-08-21 |
| IT7952814V0 (en) | 1979-01-08 |
| NL7900194A (en) | 1979-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8131 | Rejection |