EP0968395A2 - Refrigerated catering service trolley and installation for reloading refrigerating agent - Google Patents

Refrigerated catering service trolley and installation for reloading refrigerating agent

Info

Publication number
EP0968395A2
EP0968395A2 EP98913852A EP98913852A EP0968395A2 EP 0968395 A2 EP0968395 A2 EP 0968395A2 EP 98913852 A EP98913852 A EP 98913852A EP 98913852 A EP98913852 A EP 98913852A EP 0968395 A2 EP0968395 A2 EP 0968395A2
Authority
EP
European Patent Office
Prior art keywords
insulating material
compartment
trolley
refrigerant
installation
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.)
Granted
Application number
EP98913852A
Other languages
German (de)
French (fr)
Other versions
EP0968395B1 (en
Inventor
Claude Gibot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0968395A2 publication Critical patent/EP0968395A2/en
Application granted granted Critical
Publication of EP0968395B1 publication Critical patent/EP0968395B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • A47B2031/002—Catering trolleys

Definitions

  • the invention relates to trolleys or trolleys used for the preservation and distribution of perishable foodstuffs, especially in aircraft.
  • These trolleys used for the distribution of meal trays during air travel are produced in the form of an aluminum or light alloy structure, insulated, provided with a front door and delimiting a certain number of rails on which the trays.
  • a removable tray placed in the upper part of the trolley allows the loading of a reserve of a refrigerant or refrigerant intended to maintain the transported food at the right temperature.
  • the refrigerant lacks efficiency.
  • the meal trays at the top of the cart are too cold while those at the bottom are not enough.
  • the temperature of all the meal trays may become too high.
  • the main goal sought here is to improve the efficiency and uniformity of the cooling throughout the volume of the carriage and also to improve the operating conditions and costs.
  • the invention mainly relates to a trolley for the preservation and distribution of foodstuffs, in particular for the distribution of meal trays in aircraft, comprising a metallic structure of generally parallelepipedal shape provided with a door in its front wall and delimiting, on the one hand, a housing in its upper part to receive a removable container adapted to contain a cooling agent and, on the other hand, a compartment in which the foodstuffs are arranged, characterized in that at least the two side walls of the metal structure comprise two metal sheets separated by a layer of insulating material, gas circulation channels being delimited between the internal metal sheet and the insulating material, which are open at their upper and lower parts, and open, respectively, in the upper housing in which is the container containing the refrigerant, and in the lower part of the compartment in which the foodstuffs are arranged .
  • the layer of insulating material comprises ribs which are in contact with the internal sheet and which delimit between them said channels;
  • the cart has two compartments for receiving food and two housings each receiving a container containing the refrigerant, these different compartments and housings being separated by partitions forming a heat shield.
  • the invention also relates to an installation for recharging the tanks with refrigerant, characterized in that it comprises a frame, a source of liquid refrigerant, means for distributing this agent, comprising an injection nozzle, control means for dosing the quantity of agent introduced into the tank, a receptacle adapted to receive a tank and position it relative to the injection nozzle, a shutter member for closing the tank during the injection phase and a gas evacuation circuit which is released during this same injection phase.
  • FIG. 1 is a sectional view of a carriage according to the invention, along a vertical plane parallel to the front face of this carriage;
  • FIG. 2 is a partial sectional view of a side wall portion along line 2-2 of Figure 1;
  • FIG. 3 is a schematic perspective view of an alternative embodiment of such a carriage;
  • FIG. 4 is a schematic perspective view of an installation for recharging the tanks with refrigerant.
  • a cart as used to ensure the preservation and distribution of meal trays in aircraft.
  • a carriage of generally parallelepiped shape is constituted by a metal structure 10 provided with wheels 12 and whose front face 14 is equipped with a door.
  • An intermediate partition 16, parallel to the bottom 18 and to the upper face 20 of the carriage divides the internal volume of the latter into two parts: an upper housing 22 of low height intended to receive a removable tray 24, and a lower compartment 26 representing l 'essential volume and intended to receive meal trays.
  • This partition 16 separating the upper housing from the lower compartment is produced so as to constitute a heat shield.
  • the entire carriage is also made so as to have isothermal qualities and its walls are therefore preferably made of a sandwich type material having thermal insulation qualities.
  • the two side walls 28, 30 of the carriage formed of two metal sheets 31, 32 between which is interposed a layer 33 of a thermal insulating material, are produced so as to delimit vertical channels 34 for circulation of gas.
  • the insulating material is shaped or molded so as to delimit parts projecting or vertical ribs 36, which are glued to the internal metal sheet 31, and which delimit between them the aforementioned channels ( Figure 2).
  • these channels open freely at 35 into the upper compartment 22 of the carriage.
  • the internal metal sheet and the insulating material are interrupted at a distance of one order of a few centimeters from the bottom of the carriage, so that the channels open freely in the vicinity of the bottom of the latter.
  • the internal metal sheets 31 of the side walls have ribs 38 which constitute rails suitable for sliding reception of the meal trays.
  • the internal metal sheet extends to a level located a short distance below the lower rail delimited by this sheet.
  • the removable tray 24 intended to contain the refrigerant is in the conventional construction assembly and has a bottom and side walls provided with openings.
  • this tank has in its rear wall an orifice 39 intended to allow its refilling with refrigerant.
  • this container can be placed in the upper compartment of the carriage so as to delimit a gap between its bottom and the intermediate partition 16.
  • the removable container 24 containing an agent refrigerant preferably consisting of an amount of snow or dry ice, determined according to the required shelf life, is arranged in the upper compartment of the trolley.
  • This refrigerant sublimes slowly and it is established due to the presence of the channels 34 delimited in the side walls 31, 32 of the carriage, a natural circulation by convection, inside the double envelope that constitutes each of these side walls, as well as in the lower part of the carriage.
  • the partition 16 forming a heat shield blocks the refrigerating radiation.
  • the entire compartment is thus cooled substantially homogeneously over its entire height.
  • the main objective sought is therefore achieved since all the meal trays arranged in the trolley are cooled substantially in the same way, whether they are placed at the bottom or at the top of the compartment.
  • a weight saving is achieved, without reducing the thermal insulation efficiency of the heat-insulating complex, because the gas which circulates in the channels of the double jacket has insulation properties substantially equivalent to those of the insulating layer.
  • FIG. 3 An alternative embodiment in which the carriage 40 is divided in the direction of height into four compartments, by means of three partitions 41, 42, 43 constituting heat shields.
  • Two compartments 44, 45, of relatively large dimensions are each associated, as in the embodiment of FIG. 1, with a compartment 46, 47 of low height in which there is a removable container containing a reserve of refrigerant.
  • a compartment 44 or 45 for receiving the trays and a compartment 46 or 47 for receiving the removable tray constitute a sub-assembly similar to that described with reference to FIG. 1.
  • Another way to obtain this result is to increase the height of the upper compartment and the capacity of the container containing the refrigerant.
  • the invention also relates to an installation making it possible to recharge the removable containers with a refrigerant and more particularly with dry ice.
  • This installation (FIG. 4) preferably comprises several recharging stations 50 each comprising a distributor 52 connected to a source of liquid CO 2 and the outlet member of which is constituted by an injection nozzle 54, and control means allowing to measure the quantity of product introduced into the tank.
  • distributing and commands are described for example in documents FR-A-94 12 829 and EP-A-631096.
  • This recharging station comprises a frame 56 delimiting an enclosure 57 and on which is provided a receptacle 58 adapted to receive a container to be recharged.
  • the receptacle ensures the positioning of the tank so that the liquid C0 2 injection nozzle fits into the orifice 39 formed in the rear wall of the tank.
  • a cover 60 articulated along one of its edges 62 on the frame is intended to fit tightly on the upper face of the tank.
  • This cover has an orifice tightly connected to a gas exhaust duct 64.
  • This conduit is produced in the form of a tube 66 connected at one end by a flexible elbow 68 to the enclosure 57 which is itself connected to a network 70 for gas extraction.
  • the tube 66 is extended beyond its attachment to the cover to form a locking member, by cooperation with a tab 72 articulated at one of its ends on a support 74, comprising in its middle part a substantially semi-cylindrical bearing surface 76, intended to cooperate with one end of the tube, and comprising at its other end a notch 78 in which a threaded rod 80 can engage, pivotally mounted on the frame and which can cooperate with a nut 82 provided with a knurled button 84.
  • This end of the tube 66 is of course closed. It is sufficient, in order to set up a tray to be reloaded, that the nut 82 is slightly loosened, the cover then being raised enough to allow the tray to be put in place.
  • the nut is then tightened to ensure tight contact between the cover and the container to be refilled.
  • the quantity of liquid C0 2 to be injected having been chosen beforehand, the operator need only initiate this injection, which then stops automatically.
  • the gas produced during the transformation of liquid C0 2 under pressure into carbon dioxide snow is evacuated through the pipe 64, 66 in the direction of the enclosure 57 and then of the extraction network 70.
  • the tab 72 can be released from the threaded rod 80, nut 82 assembly, to allow the complete opening of the cover and to facilitate cleaning operations.
  • the quantity of refrigerant introduced into each tank can be easily adapted to the duration of the journey, which makes it possible to optimize the consumption of C0 2 and the operating costs.

Abstract

Catering service trolleys for preserving and distributing meal service trays in aeroplanes. Said trolley comprises side walls (28, 30) with double shells defining vertical channels (34) opening at their upper part into the housing (22) containing the refrigerating agent and at their lower part in the proximity of the bottom of the section (26) receiving the meal-trays, thus enabling the refrigerating gas to circulate by convection over the whole height of the trolley and a more homogeneous temperature distribution.

Description

CHARIOT REFRIGERE ET INSTALLAΗON DE RECHARGEMENT EN AGENT REFRIGERANTREFRIGERATED TROLLEY AND REFRIGERANT CHARGING INSTALLATION
L'invention concerne les chariots ou trolleys utilisés pour la préservation et la distribution de denrées alimentaires périssables, notamment dans les avions . Ces chariots utilisés pour la distribution de plateaux-repas lors des trajets aériens sont réalisés sous la forme d'une structure en aluminium ou alliage léger, calorifugée, munie d'une porte en façade et délimitant un certain nombre de rails sur lesquels sont disposés les plateaux. Un bac amovible disposé dans la partie supérieure du chariot permet le chargement d'une réserve d'un agent réfrigérant ou frigorigène destiné à assurer le maintien à bonne température des aliments transportés. Or, on constate dans les chariots connus que l'agent réfrigérant manque d'efficacité. Les plateaux- repas situés à la partie supérieure du chariot sont trop refroidis tandis que ceux disposés en partie basse ne le sont pas assez. De plus, dans le cas de longs trajets, la température de l'ensemble des plateaux- repas peut devenir trop élevée.The invention relates to trolleys or trolleys used for the preservation and distribution of perishable foodstuffs, especially in aircraft. These trolleys used for the distribution of meal trays during air travel are produced in the form of an aluminum or light alloy structure, insulated, provided with a front door and delimiting a certain number of rails on which the trays. A removable tray placed in the upper part of the trolley allows the loading of a reserve of a refrigerant or refrigerant intended to maintain the transported food at the right temperature. However, it is found in known carts that the refrigerant lacks efficiency. The meal trays at the top of the cart are too cold while those at the bottom are not enough. In addition, in the case of long journeys, the temperature of all the meal trays may become too high.
Le but principal recherché ici est d'améliorer l'efficacité et l'homogénéité du refroidissement dans l'ensemble du volume du chariot et d'améliorer aussi les conditions et les coûts d' exploitatio .The main goal sought here is to improve the efficiency and uniformity of the cooling throughout the volume of the carriage and also to improve the operating conditions and costs.
A cet effet, l'invention a principalement pour objet un chariot pour la préservation et la distribution de denrées alimentaires, notamment pour la distribution de plateaux-repas dans des avions, comprenant une structure métallique de forme générale parallélepipedique munie d'une porte dans sa paroi avant et délimitant, d'une part, un logement dans sa partie supérieure pour recevoir un bac amovible adapté pour contenir un agent réfrigérant et, d'autre part, un compartiment dans lequel sont disposées les denrées alimentaires, caractérisé en ce qu'au moins les deux parois latérales de la structure métallique comportent deux tôles de métal séparées par une couche de matériau isolant, des canaux de circulation de gaz étant délimités entre la tôle métallique interne et le matériau isolant, qui sont ouverts à leurs parties supérieure et inférieure, et débouchent, respectivement, dans le logement supérieur dans lequel se trouve le bac contenant l'agent réfrigérant, et dans la partie basse du compartiment dans lequel sont disposées les denrées alimentaires.To this end, the invention mainly relates to a trolley for the preservation and distribution of foodstuffs, in particular for the distribution of meal trays in aircraft, comprising a metallic structure of generally parallelepipedal shape provided with a door in its front wall and delimiting, on the one hand, a housing in its upper part to receive a removable container adapted to contain a cooling agent and, on the other hand, a compartment in which the foodstuffs are arranged, characterized in that at least the two side walls of the metal structure comprise two metal sheets separated by a layer of insulating material, gas circulation channels being delimited between the internal metal sheet and the insulating material, which are open at their upper and lower parts, and open, respectively, in the upper housing in which is the container containing the refrigerant, and in the lower part of the compartment in which the foodstuffs are arranged .
Suivant d'autres caractéristiques :According to other characteristics:
- le logement et le compartiment sont séparés par une cloison constituant un écran thermique ;- the housing and the compartment are separated by a partition constituting a heat shield;
- la couche de matériau isolant comporte des nervures qui sont en contact avec la tôle interne et qui délimitent entre elles lesdits canaux ;- The layer of insulating material comprises ribs which are in contact with the internal sheet and which delimit between them said channels;
- des tasseaux verticaux sont prévus entre la tôle interne et la couche de matériau isolant ;- vertical battens are provided between the internal sheet and the layer of insulating material;
- les bords inférieurs de la tôle interne et de la couche de matériau isolant sont espacés de la paroi de fond du compartiment ;- The lower edges of the internal sheet and the layer of insulating material are spaced from the bottom wall of the compartment;
- le chariot comporte deux compartiments de réception des denrées alimentaires et deux logements recevant chacun un bac contenant l'agent réfrigérant, ces différents compartiments et logements étant séparés par des cloisons formant écran thermique.- the cart has two compartments for receiving food and two housings each receiving a container containing the refrigerant, these different compartments and housings being separated by partitions forming a heat shield.
L'invention a aussi pour objet une installation pour le rechargement des bacs en agent réfrigérant, caractérisée en ce qu'elle comprend un bâti, une source d'agent réfrigérant liquide, des moyens distributeurs de cet agent, comportant une buse d'injection, des moyens de commande pour doser la quantité d'agent introduite dans le bac, un réceptacle adapté pour recevoir un bac et le positionner par rapport à la buse d'injection, un organe obturateur pour fermer le bac pendant la phase d'injection et un circuit d'évacuation des gaz qui se dégagent au cours de cette même phase d'injection.The invention also relates to an installation for recharging the tanks with refrigerant, characterized in that it comprises a frame, a source of liquid refrigerant, means for distributing this agent, comprising an injection nozzle, control means for dosing the quantity of agent introduced into the tank, a receptacle adapted to receive a tank and position it relative to the injection nozzle, a shutter member for closing the tank during the injection phase and a gas evacuation circuit which is released during this same injection phase.
L'invention va être décrite plus en détail ci-après en se référant aux dessins annexés sur lesquels :The invention will be described in more detail below with reference to the accompanying drawings in which:
- la figure 1 est une vue en coupe d'un chariot selon l'invention, suivant un plan vertical parallèle à la face frontale de ce chariot ;- Figure 1 is a sectional view of a carriage according to the invention, along a vertical plane parallel to the front face of this carriage;
- la figure 2 est une vue partielle en coupe d'une portion de paroi latérale suivant la ligne 2-2 de la figure 1 ; - la figure 3 est une vue schématique en perspective d'une variante de réalisation d'un tel chariot ;- Figure 2 is a partial sectional view of a side wall portion along line 2-2 of Figure 1; - Figure 3 is a schematic perspective view of an alternative embodiment of such a carriage;
- la figure 4 est une vue schématique en perspective d'une installation de rechargement des bacs en agent réfrigérant. On voit sur la figure 1 un chariot tel qu'utilisé pour assurer la préservation et la distribution de plateaux-repas dans les avions.- Figure 4 is a schematic perspective view of an installation for recharging the tanks with refrigerant. We see in Figure 1 a cart as used to ensure the preservation and distribution of meal trays in aircraft.
On ne décrira de façon plus détaillée que les parties de ce chariot qui sont originales et modifiées conformément à l'invention.Only the parts of this carriage which are original and modified in accordance with the invention will be described in more detail.
Un chariot de forme générale parallélepipedique, est constitué par une structure métallique 10 munie de roues 12 et dont la face frontale 14 est équipée d'une porte. Une cloison intermédiaire 16, parallèle au fond 18 et à la face supérieure 20 du chariot divise le volume interne de ce dernier en deux parties : un logement supérieur 22 de faible hauteur destiné à recevoir un bac amovible 24, et un compartiment inférieur 26 représentant l'essentiel du volume et destiné à recevoir les plateaux-repas.A carriage of generally parallelepiped shape, is constituted by a metal structure 10 provided with wheels 12 and whose front face 14 is equipped with a door. An intermediate partition 16, parallel to the bottom 18 and to the upper face 20 of the carriage divides the internal volume of the latter into two parts: an upper housing 22 of low height intended to receive a removable tray 24, and a lower compartment 26 representing l 'essential volume and intended to receive meal trays.
Cette cloison 16 séparant le logement supérieur du compartiment inférieur est réalisée de façon à constituer un écran thermique. L'ensemble du chariot est par ailleurs réalisé de façon à présenter des qualités isothermes et ses parois sont donc de préférence réalisées en un matériau de type sandwich présentant des qualités d'isolation thermique.This partition 16 separating the upper housing from the lower compartment is produced so as to constitute a heat shield. The entire carriage is also made so as to have isothermal qualities and its walls are therefore preferably made of a sandwich type material having thermal insulation qualities.
Selon l'invention, les deux parois latérales 28, 30 du chariot, formées de deux tôles métalliques 31, 32 entre lesquelles est interposée une couche 33 d'un matériau isolant thermique, sont réalisées de façon à délimiter des canaux verticaux 34 de circulation de gaz. A cet effet, le matériau isolant est conformé ou moulé de façon à délimiter des parties en saillie ou nervures verticales 36, qui sont collées sur la tôle métallique interne 31, et qui délimitent entre elles les canaux précités (figure 2) .According to the invention, the two side walls 28, 30 of the carriage, formed of two metal sheets 31, 32 between which is interposed a layer 33 of a thermal insulating material, are produced so as to delimit vertical channels 34 for circulation of gas. For this purpose, the insulating material is shaped or molded so as to delimit parts projecting or vertical ribs 36, which are glued to the internal metal sheet 31, and which delimit between them the aforementioned channels (Figure 2).
A leurs extrémités supérieures , ces canaux débouchent librement en 35 dans le compartiment supérieur 22 du chariot. A leurs extrémités inférieures, la tôle métallique interne et le matériau isolant sont interrompus à une distance de 1 ' ordre de quelques centimètres du fond du chariot, de sorte que les canaux débouchent librement au voisinage du fond de ce dernier.At their upper ends, these channels open freely at 35 into the upper compartment 22 of the carriage. At their lower ends, the internal metal sheet and the insulating material are interrupted at a distance of one order of a few centimeters from the bottom of the carriage, so that the channels open freely in the vicinity of the bottom of the latter.
D'une façon connue, les tôle métalliques internes 31 des parois latérales comportent des nervures 38 qui constituent des rails adaptés- pour recevoir à coulisse ent les plateaux-repas.In a known manner, the internal metal sheets 31 of the side walls have ribs 38 which constitute rails suitable for sliding reception of the meal trays.
De préférence, la tôle métallique interne s'étend jusqu'à un niveau situé à une faible distance au-dessous du rail inférieur délimité par cette tôle.Preferably, the internal metal sheet extends to a level located a short distance below the lower rail delimited by this sheet.
Le bac amovible 24 destiné à contenir le produit réfrigérant est dans l'ensemble de construction classique et comporte un fond et des parois latérales munies d'ouvertures. De plus, ce bac comporte dans sa paroi arrière un orifice 39 destiné à permettre sa recharge en agent réfrigérant. De façon connue, ce bac peut être disposé dans le compartiment supérieur du chariot de façon à délimiter un intervalle entre son fond et la cloison intermédiaire 16.The removable tray 24 intended to contain the refrigerant is in the conventional construction assembly and has a bottom and side walls provided with openings. In addition, this tank has in its rear wall an orifice 39 intended to allow its refilling with refrigerant. In known manner, this container can be placed in the upper compartment of the carriage so as to delimit a gap between its bottom and the intermediate partition 16.
Le fonctionnement d'un tel chariot est le suivant : le bac amovible 24 contenant un agent réfrigérant constitué de préférence par une quantité de neige ou de glace carbonique, déterminée en fonction de la durée de conservation nécessaire, est disposé dans le compartiment supérieur du chariot. Ce réfrigérant se sublime lentement et il s'établit du fait de la présence des canaux 34 délimités dans les parois latérales 31, 32 du chariot une circulation naturelle par convection, à l'intérieur de la double enveloppe que constitue chacune de ces parois latérales, ainsi que dans la partie inférieure du chariot.The operation of such a carriage is as follows: the removable container 24 containing an agent refrigerant preferably consisting of an amount of snow or dry ice, determined according to the required shelf life, is arranged in the upper compartment of the trolley. This refrigerant sublimes slowly and it is established due to the presence of the channels 34 delimited in the side walls 31, 32 of the carriage, a natural circulation by convection, inside the double envelope that constitutes each of these side walls, as well as in the lower part of the carriage.
La cloison 16 formant écran thermique bloque par contre le rayonnement frigorifique.The partition 16 forming a heat shield, on the other hand, blocks the refrigerating radiation.
L'ensemble du compartiment est ainsi refroidi de façon sensiblement homogène sur toute sa hauteur. Le principal objectif recherché est donc bien atteint puisque tous les plateaux-repas disposés dans le chariot sont refroidis sensiblement de la même façon, qu'ils soient placés à la partie inférieure ou à la partie supérieure du compartiment. De plus, en raison des évidements ménagés dans le matériau isolant disposé entre les deux tôles métalliques 31, 32, on réalise un gain de poids, sans pour autant diminuer l'efficacité d'isolation thermique du complexe calorifuge, car le gaz qui circule dans les canaux de la double enveloppe possède des propriétés d'isolation sensiblement équivalentes à celles de la couche isolante.The entire compartment is thus cooled substantially homogeneously over its entire height. The main objective sought is therefore achieved since all the meal trays arranged in the trolley are cooled substantially in the same way, whether they are placed at the bottom or at the top of the compartment. In addition, due to the recesses in the insulating material disposed between the two metal sheets 31, 32, a weight saving is achieved, without reducing the thermal insulation efficiency of the heat-insulating complex, because the gas which circulates in the channels of the double jacket has insulation properties substantially equivalent to those of the insulating layer.
En variante, des tasseaux distincts de la couche 33 de matériau isolant peuvent être prévus pour délimiter les canaux 34 On a représenté sur la figure 3 une variante de réalisation dans laquelle le chariot 40 est divisé dans le sens de la hauteur en quatre compartiments , au moyen de trois cloisons 41, 42, 43 constituant des écrans thermiques. Deux compartiments 44, 45, de dimensions relativement importantes sont associés chacun, comme dans le mode de réalisation de la figure 1, à un compartiment 46, 47 de faible hauteur dans lequel se trouve un bac amovible contenant une réserve d'agent réfrigérant. Un compartiment 44 ou 45 de réception des plateaux et un compartiment 46 ou 47 de réception du bac amovible constituent un sous-ensemble analogue à celui décrit à propos de la figure 1.As a variant, battens distinct from the layer 33 of insulating material may be provided to delimit the channels 34 There is shown in Figure 3 an alternative embodiment in which the carriage 40 is divided in the direction of height into four compartments, by means of three partitions 41, 42, 43 constituting heat shields. Two compartments 44, 45, of relatively large dimensions are each associated, as in the embodiment of FIG. 1, with a compartment 46, 47 of low height in which there is a removable container containing a reserve of refrigerant. A compartment 44 or 45 for receiving the trays and a compartment 46 or 47 for receiving the removable tray constitute a sub-assembly similar to that described with reference to FIG. 1.
Un tel agencement permet de doubler la quantité d'agent réfrigérant et donc d'augmenter la durée de préservation des produits .Such an arrangement makes it possible to double the quantity of refrigerant and therefore to increase the preservation time of the products.
Une autre façon d'obtenir ce résultat consiste à augmenter la hauteur du compartiment supérieur et la capacité du bac contenant l'agent réfrigérant.Another way to obtain this result is to increase the height of the upper compartment and the capacity of the container containing the refrigerant.
L'invention a également pour objet une installation permettant de recharger les bacs amovibles en agent réfrigérant et plus particulièrement en neige carbonique. Cette installation (figure 4) comprend de préférence plusieurs postes 50 de rechargement comprenant chacun un distributeur 52 relié à une source de C02 liquide et dont l'organe de sortie est constitué par une buse d'injection 54, et des moyens de commande permettant de doser la quantité de produit introduite dans le bac. De tels moyens distributeurs et de commande sont décrits par exemple dans les documents FR-A-94 12 829 et EP-A-631096.The invention also relates to an installation making it possible to recharge the removable containers with a refrigerant and more particularly with dry ice. This installation (FIG. 4) preferably comprises several recharging stations 50 each comprising a distributor 52 connected to a source of liquid CO 2 and the outlet member of which is constituted by an injection nozzle 54, and control means allowing to measure the quantity of product introduced into the tank. Such distributing and commands are described for example in documents FR-A-94 12 829 and EP-A-631096.
Ce poste de rechargement comprend un bâti 56 délimitant une enceinte 57 et sur lequel est prévu un réceptacle 58 adapté pour recevoir un bac à recharger. Le réceptacle assure le positionnement du bac de telle façon que la buse d'injection de C02 liquide s'ajuste dans l'orifice 39 ménagé dans la paroi arrière du bac. Un couvercle 60 articulé le long de l'un de ses bords 62 sur le bâti est destiné à venir s'adapter de façon étanche sur la face supérieure du bac. Ce couvercle comporte un orifice relié de façon étanche à un conduit 64 d'évacuation des gaz. Ce conduit est réalisé sous la forme d'un tube 66 relié à une extrémité par un coude souple 68 à l'enceinte 57 qui est elle-même reliée à un réseau 70 d'extraction de gaz.This recharging station comprises a frame 56 delimiting an enclosure 57 and on which is provided a receptacle 58 adapted to receive a container to be recharged. The receptacle ensures the positioning of the tank so that the liquid C0 2 injection nozzle fits into the orifice 39 formed in the rear wall of the tank. A cover 60 articulated along one of its edges 62 on the frame is intended to fit tightly on the upper face of the tank. This cover has an orifice tightly connected to a gas exhaust duct 64. This conduit is produced in the form of a tube 66 connected at one end by a flexible elbow 68 to the enclosure 57 which is itself connected to a network 70 for gas extraction.
Dans le mode de réalisation décrit, le tube 66 est prolongé au-delà de sa fixation sur le couvercle pour constituer un organe de blocage, par coopération avec une patte 72 articulée à l'une de ses extrémités sur un support 74, comportant dans sa partie médiane une portée 76 sensiblement semi-cylindrique, destinée à coopérer avec 1 ' extrémité du tube , et comportant à son autre extrémité une échancrure 78 dans laquelle peut s'engager une tige filetée 80, montée basculante sur le bâti et qui peut coopérer avec un écrou 82 muni d'un bouton moleté 84. Cette extrémité du tube 66 est bien entendu obturée. Il suffit, pour mettre en place un bac à recharger, que l' écrou 82 soit légèrement desserré, le couvercle étant alors suffisamment soulevé pour permettre la mise en place du bac. L' écrou est ensuite serré pour assurer un contact étanche entre le couvercle et le bac à recharger. La quantité de C02 liquide à injecter ayant été préalablement choisie, il suffit à l'opérateur de déclencher cette injection dont l'arrêt se produit ensuite automatiquement. Le gaz produit lors de la transformation de C02 liquide sous pression en neige carbonique, est évacué par le tuyau 64, 66 en direction de l'enceinte 57 puis du réseau d'extraction 70.In the embodiment described, the tube 66 is extended beyond its attachment to the cover to form a locking member, by cooperation with a tab 72 articulated at one of its ends on a support 74, comprising in its middle part a substantially semi-cylindrical bearing surface 76, intended to cooperate with one end of the tube, and comprising at its other end a notch 78 in which a threaded rod 80 can engage, pivotally mounted on the frame and which can cooperate with a nut 82 provided with a knurled button 84. This end of the tube 66 is of course closed. It is sufficient, in order to set up a tray to be reloaded, that the nut 82 is slightly loosened, the cover then being raised enough to allow the tray to be put in place. The nut is then tightened to ensure tight contact between the cover and the container to be refilled. The quantity of liquid C0 2 to be injected having been chosen beforehand, the operator need only initiate this injection, which then stops automatically. The gas produced during the transformation of liquid C0 2 under pressure into carbon dioxide snow is evacuated through the pipe 64, 66 in the direction of the enclosure 57 and then of the extraction network 70.
La patte 72 peut être dégagée de l'ensemble tige filetée 80, écrou 82, pour permettre l'ouverture complète du couvercle et faciliter des opérations de nettoyage.The tab 72 can be released from the threaded rod 80, nut 82 assembly, to allow the complete opening of the cover and to facilitate cleaning operations.
La présence de plusieurs unités modulaires de remplissage, analogues à celle que l'on vient de décrire, permet de recharger de façon très efficace les bacs contenant l'agent réfrigérant et cette opération peut être effectuée en temps masqué, ce qui représente un gain tout à fait appréciable.The presence of several modular filling units, similar to that just described, makes it possible to reload very efficiently the tanks containing the refrigerant and this operation can be carried out in masked time, which represents a gain quite appreciable.
De plus, la quantité d'agent réfrigérant introduite dans chaque bac peut être aisément adaptée à la durée du trajet, ce qui permet d'optimiser la consommation de C02 et les coûts d'exploitation.In addition, the quantity of refrigerant introduced into each tank can be easily adapted to the duration of the journey, which makes it possible to optimize the consumption of C0 2 and the operating costs.
Bien entendu, d'autres modes de rechargement peuvent être utilisés , par exemple au moyen de plaquettes de glace carbonique, ou tout autre produit approprié. Of course, other recharging methods can be used, for example by means of dry ice packs, or any other suitable product.

Claims

REVENDICATIONS
1. Chariot pour la préservation et la distribution de denrées alimentaires, notamment pour la distribution de plateaux-repas dans des avions, comprenant une structure métallique (10) de forme générale parallélepipedique munie d'une porte dans sa paroi avant (14) et délimitant, d'une part, un logement (22) dans sa partie supérieure pour recevoir un bac amovible (24) adapté pour contenir un agent réfrigérant et, d'autre part, un compartiment (26) dans lequel sont disposées les denrées alimentaires, caractérisé en ce qu'au moins les deux parois latérales (28, 30) de la structure métallique comportent deux tôles de métal (31, 32) séparées par une couche (33) de matériau isolant, des canaux (34) de circulation de gaz étant délimités entre la tôle métallique (31) interne et le matériau isolant (33), qui sont ouverts à leurs parties supérieure et inférieure, et débouchent, respectivement, dans le logement supérieur (22) dans lequel se trouve le bac contenant l'agent réfrigérant, et dans la partie basse du compartiment (26) dans lequel sont disposées les denrées alimentaires .1. Trolley for the preservation and distribution of foodstuffs, in particular for the distribution of meal trays in planes, comprising a metallic structure (10) of generally parallelepipedal shape provided with a door in its front wall (14) and delimiting , on the one hand, a housing (22) in its upper part for receiving a removable container (24) adapted to contain a cooling agent and, on the other hand, a compartment (26) in which the foodstuffs are arranged, characterized in that at least the two side walls (28, 30) of the metal structure comprise two metal sheets (31, 32) separated by a layer (33) of insulating material, gas circulation channels (34) being delimited between the internal metal sheet (31) and the insulating material (33), which are open at their upper and lower parts, and open, respectively, in the upper housing (22) in which is the container containing the coolant, and in the lower part of the compartment (26) in which the foodstuffs are arranged.
2. Chariot suivant la revendication 1, caractérisé en ce que le logement (22) et le compartiment (26) sont séparés par une cloison (16) constituant un écran thermique .2. Trolley according to claim 1, characterized in that the housing (22) and the compartment (26) are separated by a partition (16) constituting a heat shield.
3. chariot suivant l'une quelconque des revendications 1 et 2, caractérisé en ce que la couche3. carriage according to any one of claims 1 and 2, characterized in that the layer
(33) de matériau isolant comporte des nervures (36) qui sont en contact avec la tôle interne (31) et qui délimitent entre elles lesdits canaux (34) . (33) of insulating material comprises ribs (36) which are in contact with the internal sheet (31) and which delimit between them said channels (34).
4. Chariot suivant l'une quelconque des revendications 1 et 2 , caractérisé en ce que des tasseaux verticaux sont prévus entre la tôle interne (31) et la couche (33) de matériau isolant. 4. Trolley according to any one of claims 1 and 2, characterized in that vertical battens are provided between the internal sheet (31) and the layer (33) of insulating material.
5. Chariot suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que les bords inférieurs de la tôle interne (31) et de la couche de matériau isolant (33) sont espacés de la paroi de fond du compartiment (26) . 5. Trolley according to any one of claims 1 to 4, characterized in that the lower edges of the internal sheet (31) and of the layer of insulating material (33) are spaced from the bottom wall of the compartment (26) .
6. Chariot suivant l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comporte deux compartiments (44, 45) de réception des denrées alimentaires et deux logements (46, 47) recevant chacun un bac contenant l'agent réfrigérant, ces différents compartiments et logements étant séparés par des cloisons formant écran thermique .6. Trolley according to any one of claims 1 to 5, characterized in that it comprises two compartments (44, 45) for receiving foodstuffs and two housings (46, 47) each receiving a tray containing the refrigerant , these different compartments and housings being separated by partitions forming a heat shield.
7. Installation de rechargement de bacs (24) en agent réfrigérant tel que de la neige carbonique, bacs destinés au chariot selon l'un des revendications 1 à 6, caractérisée en ce qu'elle comprend un bâti (56), une source d'agent réfrigérant liquide, des moyens distributeurs (52) de cet agent, comportant une buse d'injection (54), des moyens de commande pour doser la quantité d'agent introduite dans le bac, un réceptacle (58) adapté pour recevoir un bac et le positionner par rapport à la buse d'injection (54), un organe obturateur7. Installation for reloading tanks (24) in a refrigerant such as dry ice, tanks intended for the trolley according to one of claims 1 to 6, characterized in that it comprises a frame (56), a source of liquid refrigerant, distributor means (52) of this agent, comprising an injection nozzle (54), control means for metering the amount of agent introduced into the tank, a receptacle (58) adapted to receive a tank and position it in relation to the injection nozzle (54), a shutter member
(60) pour fermer le bac pendant la phase d'injection et un circuit (64, 66, 68, 70) d'évacuation des gaz qui se dégagent au cours de cette même phase d'injection. (60) to close the tank during the injection phase and a circuit (64, 66, 68, 70) for evacuating the gases which are released during this same injection phase.
8. Installation suivant la revendication 7, caractérisé en ce que l'organe obturateur est un couvercle (60) articulé le long d'un de ses côtés sur - le bâti (56) , et comportant sur son côté opposé des moyens de blocage en position de fermeture.8. Installation according to claim 7, characterized in that the shutter member is a cover (60) articulated along one of its sides on the frame (56), and comprising on its opposite side locking means in the closed position.
9. Installation suivant la revendication 8, caractérisé en ce que les moyens de blocage comprennent une patte (72) articulée à une extrémité sur le bâti, coopérant dans sa partie médiane avec un organe (66) solidaire du couvercle et munie à son autre extrémité de moyens de serrage amovibles (78-84) . 9. Installation according to claim 8, characterized in that the locking means comprise a lug (72) articulated at one end on the frame, cooperating in its middle part with a member (66) integral with the cover and provided at its other end removable clamping means (78-84).
10. Installation suivant l'une quelconque des revendications 7 à 9, caractérisé en ce que les moyens d'évacuation des gaz comprennent un conduit (64) s ' étendant à partir de l'organe obturateur (60), et un tube (66) relié à une enceinte (57) elle même reliée à un réseau (70) d'extraction des gaz.10. Installation according to any one of claims 7 to 9, characterized in that the gas discharge means comprise a conduit (64) extending from the shutter member (60), and a tube (66 ) connected to an enclosure (57) itself connected to a gas extraction network (70).
11. Installation suivant la revendication 10, caractérisé en ce que le tube (66) est fixé à l'organe obturateur (60) et relié au bâti par un coude souple (68) . 11. Installation according to claim 10, characterized in that the tube (66) is fixed to the shutter member (60) and connected to the frame by a flexible elbow (68).
12. Installation suivant la revendication 11, caractérisé en ce que le tube (66) est prolongé au delà du conduit (64) pour constituer un organe de retenue et de blocage du couvercle en position de fermeture.12. Installation according to claim 11, characterized in that the tube (66) is extended beyond the conduit (64) to constitute a member for retaining and locking the cover in the closed position.
13. Installation suivant l'une quelconque des revendications 7 à 12, caractérisée en ce qu'elle comporte plusieurs postes juxtaposés de rechargement des bacs. 13. Installation according to any one of claims 7 to 12, characterized in that it comprises several juxtaposed stations for reloading the tanks.
EP98913852A 1997-03-11 1998-03-06 Refrigerated trolley Expired - Lifetime EP0968395B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9702871 1997-03-11
FR9702871A FR2760826B1 (en) 1997-03-11 1997-03-11 REFRIGERATED TROLLEY AND REFRIGERANT RELOADING SYSTEM
PCT/FR1998/000452 WO1998040680A2 (en) 1997-03-11 1998-03-06 Refrigerated catering service trolley and installation for reloading refrigerating agent

Publications (2)

Publication Number Publication Date
EP0968395A2 true EP0968395A2 (en) 2000-01-05
EP0968395B1 EP0968395B1 (en) 2002-10-23

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Application Number Title Priority Date Filing Date
EP98913852A Expired - Lifetime EP0968395B1 (en) 1997-03-11 1998-03-06 Refrigerated trolley

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US (1) US6295829B1 (en)
EP (1) EP0968395B1 (en)
AU (1) AU6839998A (en)
CA (1) CA2284873A1 (en)
DE (1) DE69808894T2 (en)
FR (1) FR2760826B1 (en)
WO (1) WO1998040680A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672601B1 (en) * 2000-05-12 2004-01-06 The County Of Alameda, A Political Subdivision Of The State Of California Meal delivery cart
US6619065B1 (en) * 2002-11-01 2003-09-16 Bruce H. Burton Heating ventilating and air conditioning worker's servicing cart
DE10258419A1 (en) * 2002-12-13 2004-06-24 TV Kohlensäure Technik & Vertrieb GmbH + Co. Supply of a temperature maintenance facility with carbon dioxide snow
FR2851329B1 (en) * 2003-02-17 2006-02-03 Airbus METHOD OF MAINTAINING COLD FOOD ON AIRCRAFT AND MEANS FOR IMPLEMENTING THE SAME
US8005580B2 (en) 2003-12-09 2011-08-23 The Boeing Company Aircraft galley systems and methods for managing electric power for aircraft galley systems
US7444830B2 (en) * 2004-03-08 2008-11-04 The Boeing Company Aircraft galley carts and other insulated food storage units, and methods for their use
US7544915B2 (en) * 2004-03-31 2009-06-09 The Boeing Company Aircraft galley carts and associated methods of manufacture
US7458441B2 (en) * 2004-07-22 2008-12-02 The Boeing Company Securement latches and associated aircraft galley carts and methods
EP2386460A1 (en) * 2010-05-13 2011-11-16 Industrial Neo Tex SA Storage trolley for aircraft
US8936260B2 (en) 2012-07-20 2015-01-20 B/E Aerospace, Inc. Meal cart for an aircraft galley
EP2781862A1 (en) 2013-03-19 2014-09-24 Socamel Technologies Refrigerated carriage with an embedded device for cooling and maintaining cold
US10407173B2 (en) * 2014-03-10 2019-09-10 The Boeing Company Dry ice draw through galley cooling
US10271689B2 (en) * 2015-09-10 2019-04-30 Prince Castle LLC Modular food holding system

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR671566A (en) * 1929-03-16 1929-12-14 Machine for the production of dry ice
US1965922A (en) * 1929-06-26 1934-07-10 Fievet Henri Apparatus for the manufacture of cakes of carbonic snow
US1880735A (en) * 1929-07-17 1932-10-04 James H Bell Refrigerator
FR677429A (en) * 1930-01-14 1930-03-07 Carbonique Francaise Apparatus for making dry ice cakes
US1942315A (en) * 1930-08-21 1934-01-02 Voltz Brothers Inc Body construction
US1965205A (en) * 1932-03-12 1934-07-03 Walter L Smith Method of and apparatus for refrigeration with solid carbon dioxide
FR780534A (en) * 1934-01-17 1935-04-27 Improvements to refrigeration chambers
US2071302A (en) * 1935-04-04 1937-02-16 Albert J Smith Solid carbon dioxide cake forming machine
US2123678A (en) * 1937-05-01 1938-07-12 Refrigerator container
US2214347A (en) * 1937-08-17 1940-09-10 Post Hoyt Safety control mechanism for valves
US3906744A (en) * 1972-05-15 1975-09-23 Kardel Prod Corp Passively cooled fluid storage apparatus
NL7306577A (en) * 1972-06-05 1973-12-07
DE2304718A1 (en) * 1973-01-31 1974-08-01 Burger Eisenwerke Ag REFRIGERATION CONTAINER
EP0066547A3 (en) * 1981-06-02 1985-10-09 Schweizerische Aluminium Ag Service trolley
CH653121A5 (en) * 1981-10-16 1985-12-13 Bucher Heinrich Fa REFRIGERATED CONTAINER.
AU556605B2 (en) 1981-11-16 1986-11-13 Ptc Aerospace Inc. Food trolley with cooling means
GB8503011D0 (en) * 1985-02-06 1985-03-06 Caravell Mfg Ltd Storage cabinets
US4936377A (en) * 1986-12-11 1990-06-26 The Boeing Company Food storage cart with thermo wall
US4898294A (en) * 1988-08-31 1990-02-06 Jennings Gary K Frozen food container for aircraft usage
FR2696158B1 (en) * 1992-09-29 1994-11-10 Carboxyque Francaise Insulated container, especially for transporting fresh or frozen products.
US5323622A (en) * 1993-04-21 1994-06-28 Cryo-Trans, Inc. Multi-temperature cryogenic refrigeration system
FR2706990B1 (en) 1993-06-23 1995-08-04 Carboxyque Francaise
FR2726353B1 (en) 1994-10-26 1996-12-20 Carboxyque Francaise AUTOMATIC DOSING PROCESS FOR STORING PRODUCTS AT LOW TEMPERATURE IN AN INSULATED ENCLOSURE COMPRISING A LOADING VOLUME AND AT LEAST ONE CARBON SNOW CONTAINER
FR2734894B1 (en) * 1995-05-30 1997-07-25 Carboxyque Francaise INSTALLATION FOR THE LOW TEMPERATURE HOLDING OF A MOBILE SPEAKER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9840680A2 *

Also Published As

Publication number Publication date
CA2284873A1 (en) 1998-09-17
DE69808894T2 (en) 2003-06-18
DE69808894D1 (en) 2002-11-28
AU6839998A (en) 1998-09-29
US6295829B1 (en) 2001-10-02
WO1998040680A3 (en) 1998-12-03
WO1998040680A2 (en) 1998-09-17
EP0968395B1 (en) 2002-10-23
FR2760826A1 (en) 1998-09-18
FR2760826B1 (en) 1999-04-23

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