GB2442739A - Refrigeration Apparatus and Vehicle Incorporating the Same - Google Patents

Refrigeration Apparatus and Vehicle Incorporating the Same Download PDF

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Publication number
GB2442739A
GB2442739A GB0620438A GB0620438A GB2442739A GB 2442739 A GB2442739 A GB 2442739A GB 0620438 A GB0620438 A GB 0620438A GB 0620438 A GB0620438 A GB 0620438A GB 2442739 A GB2442739 A GB 2442739A
Authority
GB
United Kingdom
Prior art keywords
refrigeration apparatus
transport vehicle
phase change
change material
loading space
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.)
Withdrawn
Application number
GB0620438A
Other versions
GB0620438D0 (en
Inventor
Peter Maitland Jackson
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.)
L E JACKSON
Original Assignee
L E JACKSON
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 L E JACKSON filed Critical L E JACKSON
Priority to GB0620438A priority Critical patent/GB2442739A/en
Publication of GB0620438D0 publication Critical patent/GB0620438D0/en
Publication of GB2442739A publication Critical patent/GB2442739A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/0025—Heating, cooling or ventilating [HVAC] devices the devices being independent of the vehicle
    • B60H1/00264—Transportable devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3226—Self-contained devices, i.e. including own drive motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00014—Combined heating, ventilating, or cooling devices for load cargos on load transporting vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3235—Cooling devices using sublimation, e.g. dry ice cooling or melting ice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/20—Refrigerated goods vehicles
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
    • F25D3/06—Movable containers
    • 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
    • F25D2303/082—Devices using cold storage material, i.e. ice or other freezable liquid disposed in a cold storage element not forming part of a container for products to be cooled, e.g. ice pack or gel accumulator
    • F25D2303/0822—Details of 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
    • 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
    • F25D2303/085—Compositions of cold storage materials
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0651—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the bottom
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

A portable refrigeration unit 1 contains a phase change material and has a temperature indicating means (6 fig 1). The unit can be used to cool the loading space 12, 14, of a transport vehicle 10, and may be removable and recharged by cooling in a freezer unit when its ability to provide cooling is exhausted. The unit may be mounted within the vehicle loading space in a mounting space 16, and several units may be so arranged. The vehicle may include a fan arrangement 22 between the mounting space and the loading space, which delivers the cool air to the loading space. Each refrigeration unit may also include a carrying handle 4, and the phase change material may be formed from a liquid or gel material. The phase change material may contain an aqueous solution with chemical salts and organic compounds, such as sodium chloride or potassium bromide. The invention permits a low cost, compact and lightweight refrigeration system to be used in a transport vehicle.

Description

-I-
TITLE
Refrigeration apparatus and vehicle incorporating the sanie
DESCRIPTION
Technical Field
The present invention relates to an improved refrigeration apparatus, and in particular to a portable refrigeration apparatus that can be used to cool a loading space of a transport vehicle.
Background Art
In a known refrigeration apparatus, an elongate refrigeration beam is permanently located in a space to be cooled. The refrigeration beam typically has a hollow metal or plastic outer casing with metal pipes for carrying a refrigerant gas (such as an HFC or a CFC/HCFC gas) running longitudinally through the interior. The space between the outer surface of the pipes and the inner surface of the outer casing is filled with a phase change material. The phase change material is a freezing mixture that can be formed from a combination of chemical salts and organic compounds in an aqueous solution. It can be presented either as a liquid or converted to a gel by using one of a number of different proprietary gelling agents.
An electrically powered condensing unit is used to compress the refrigerant gas which is then passed through the pipes to lower the temperature of the phase change material. Once the temperature of the phase change material has been reduced to below its freezing point (including any margin for super-freezing) the liquid or gel is converted into a solid. As soon as the flow of refrigerant gas is stopped, the phase change material will eventually start to thaw and return back to a liquid or gel. The temperature of the phase change material will not alter during the change of state (due to the well known principle of latent heat) and the refrigeration beam will therefore remain at a low temperature for a certain period of time during which it will cool the space.
If the refrigeration beam is located in the loading space of a transport vehicle, for example, then it is usual for the condensing unit to be operated during the night or during non-working periods to reduce the temperature of the phase change material to below its freezing point. The refrigeration beam is then able to cool the loading space when the transport vehicle during the day or whenever the transport vehicle is being used. In a typical arrangement the refrigeration apparatus will include a spaced array of refrigeration beams are fixedly mounted in the loading space and the metal pipes running longitudinally through the interior of each beam are connected together to form a closed piping network that is connected to the inlet and outlet of the condensing unit.
In some cases a transport vehicle may be too small to accommodate the condensing unit, refrigeration beam and the various piping associated with a known refrigeration apparatus. The weight of the refrigeration apparatus will lead to a large increase in the unladen weight of the transport vehicle and this may result in the vehicle becoming economically unviable. A conventional refrigeration apparatus is also expensive to install, requires a mains electrical supply for operating the condensing unit and may need additional maintenance and servicing. Accordingly, there is a need for a refrigeration apparatus that can be used in smaller transport vehicles.
Summary of the Invention
The present invention provides a portable refrigeration apparatus for cooling the loading space of a transport vehicle, wherein the refrigeration apparatus contains a phase change material and includes a temperature indicating means.
Unlike a conventional refrigeration apparatus that is permanently fixed within the transport vehicle, the refrigeration apparatus of the present invention is designed to be completely self-contained and manually removed from the transport vehicle when it is not needed. Instead of using condensed gas, the phase change material is preferably cooled by placing the entire refrigeration apparatus inside a freezer unit or the like.
This removes the requirement for a condensing unit and the associated piping etc. The refrigeration apparatus is therefore particularly suitable for use in small transport -3.-vehicles (such as small delivery vans or milk floats etc.) where space is limited and the additional weight of a conventional refrigeration apparatus is not practicable. It is also cheap, non-polluting and requires practically no maintenance.
The temperature indicating means is used to check the temperature of the refrigeration apparatus (and hence that of the phase change material) during the cooling process. It can also be used to check the temperature of the refrigeration apparatus when it is being used to cool the loading space. In this way, the temperature indicating means can provide an indication of the effective cooling "power" of the refrigeration apparatus.
Any suitable temperature indicating means can be used, including mechanical-, electronic-, electrical-and chemical-based devices. The temperature indicating means may incorporate or use a display or screen such as a liquid crystal display (LCD), for example, to indicate the temperature. The display or screen is preferably provided on an outer surface of the refrigeration apparatus.
The refrigeration apparatus preferably includes carrying means to assist in the process of manually moving the refrigeration apparatus into and out of the transport vehicle and the freezer unit. The carrying means can take the form of a handle, a projection or a recess for gripping, for example.
The phase change material is a freezing mixture that can be formed from a combination of chemical salts and organic compounds in an aqueous solution.
Specific examples would include sodium chloride (NaC1) or potassium bromide (KBr) in water. Before being cooled to below its freezing point, the phase change material can be a liquid but in some cases improved results have been obtained using a gel.
The present invention further provides a transport vehicle having a loading space and means for removably receiving at least one portable refrigeration apparatus as described above. Any suitable mechanical mounting means can be used to hold the refrigeration apparatus securely in place in the transport vehicle when it is being used to cool the loading space.
Mounting means for an array of portable refrigeration apparatus can be provided if additional cooling of the loading space is required. It will be readily appreciated that the number of portable refrigeration apparatus can be deliberately chosen depending on the desired temperature in the loading space and the outside temperature. If the outside temperature is cold (e.g. during the winter months) then the loading space may not require much additional cooling. In this case it would be possible for just a single refrigeration apparatus to be installed in the transport vehicle. However, if the outside temperature is warm (e.g. during the summer months) then the loading space may require quite a lot of additional cooling and several refrigeration apparatus can be installed in the transport vehicle. The ability to vaiy the number of portable refrigeration apparatus installed in the transport vehicle to provide different levels of cooling means that the overall refrigeration system is highly efficient and adaptable to changing demands.
Unlike a conventional refrigeration apparatus where the transport vehicle must be off the road while the phase change material is refrozen using a condensing unit, it is possible for a transport vehicle that is adapted to use the portable refrigeration apparatus to work almost constantly as long as each refrigeration apparatus is replaced when its effective cooling "power" is exhausted.
The present invention further provides a transport vehicle having a loading space and at least one portable refrigeration apparatus as described above.
The at least one portable refrigeration apparatus is removably mounted within the loading space or substantially adjacent to it.
The transport vehicle may include a mounting space and means (such as a fan) for exchanging air between the mounting space and the loading space. In this case the at least one portable refrigeration apparatus can be removably mounted in the mounting space.
The present invention further provides a method of cooling the loading space of a transport vehicle using a portable refrigeration apparatus that contains a phase change material and includes a temperature indicating means, the method including the steps of: cooling the portable refrigeration apparatus to reduce the temperature of the phase change material to below its freezing point; and removably mounting the portable refrigeration apparatus to the transport vehicle.
The step of cooling the refrigeration apparatus will normally involve placing the entire refrigeration apparatus in a freezer unit or the like. It is preferably only removed once all of the phase change material has been completely frozen because this improves the effectiveness of the refrigeration apparatus during use. The temperature of the refrigeration apparatus during the cooling process can be monitored using the temperature indicating means. The temperature inside the freezer unit and the time taken to reduce the temperature of the phase change material to below its freezing point will depend on the size and shape of the volume of phase change material contained within the refrigeration apparatus.
The size and shape of the refrigeration apparatus and the volume of phase change material can be chosen to meet the specific cooling requirements for the loading space of a transport vehicle. For example, for a large loading space a large volume of phase change material may be needed to provide more effective cooling "power".
Drawings Figure 1 is a perspective view of a portable refrigeration apparatus according the present invention; and Figure 2 is a side view of a transport vehicle incorporating an array of portable refrigeration apparatus as shown in Figure 1.
A portable refrigeration apparatus in the form of a cassette I is shown in Figure 1.
The cassette I is formed from a metal outer casing 2 that is filled with a phase change material, optionally in a gel form. There is no need for the interior of the cassette I to include pipes for carrying a refrigerant gas. The cassette 1 is sufficiently lightweight to be carried manually and a handle 4 is provided for this purpose. A temperature sensor (not shown) is located inside the outer casing 2 for measuring the temperature of the phase change material. The temperature is indicated on a liquid crystal display (LCD) screen 6 on the outer surface of the cassette 1.
The cassette 1 is cooled by placing it inside a freezer unit (not shown) until all of the phase change material is completely frozen. The temperature of the phase change material can be monitored and checked during the cooling process by reading the LCD screen 6. The amount of time necessary to completely freeze all of the phase change material will depend on a number of factors including the temperature of the freezer unit, the size and shape of the cassette 1 and the volume of the phase change material. The cassette I can be left in the freezer unit (not shown) until it is required.
Figure 2 shows how a number of frozen cassettes I can be installed in a transport vehicle 10. The vehicle 10 includes two loading spaces 12 and 14 for receiving perishable items such as food, for example, and a rear mounting space 16. Doors 18 located in the cabinet part lOa of the vehicle provide access to the loading spaces 12 and 14. A door (not shown) also provides access to the mounting space 16 to allow the cassette 1 to be manually installed and removed with ease.
A series of mounting units 20 are located within the mounting space 16 for securely holding six cassettes 1 (only three of which are shown) in a 2 x 3 array during use. If the mounting space 16 is sufficiently large then more cassettes can be installed for additional cooling. The handle 4 on each cassette I is positioned facing outwards so that they can be easily grasped when the cassettes are installed into the mounting units and removed from the mounting units.
Although in Figure 1 the LCD screen 6 is located on a side of the cassette I, it can also be located on an end of the cassette near the handle 4 so that it is easily visible once the cassette has been installed in the mounting space 16. The frozen cassettes 1 cool the air in the mounting space 16 and a fan 22 located between the mounting space 16 and the loading space 14 exchanges this cooled air with air in the loading spaces 12 and 14 as shown by the arrows. The temperature of the phase change material, and hence the effective cooling "power" of the cassettes 1, can be monitored using the LCD screens 6. As the phase change material starts to thaw, the ability of the cassettes I to cool the air in the mounting space 16 will gradually diminish.
Eventually, the cassettes I will need to be manually removed from their associated mounting unit 20 and replaced.
The cassettes 1 will normally be designed to maintain their cooling "power" for a fUll day while the vehicle is making deliveries. The cassettes 1 can be manually removed from their associated mounting units 20 when the vehicle returns to its depot and then cooled in the freezer unit (not shown) overnight. However, if a supply of frozen cassettes I is kept at the depot then the vehicle can work almost constantly by returning briefly to the depot (or other known locations) at regular intervals to change the thawed cassettes for frozen ones.

Claims (10)

1. A portable refrigeration apparatus for cooling the loading space of a transport vehicle, wherein the refrigeration apparatus contains a phase change material and includes a temperature indicating means.
2. A refrigeration apparatus according to claim 1, further comprising a carrying means.
3. A transport vehicle having a loading space and means for removably receiving at least one portable refrigeration apparatus according to any preceding claim.
4. A transport vehicle having a loading space and at least one portable refrigeration apparatus according to claim I and claim 2.
5. A transport vehicle according to claim 4, wherein the at least one portable refrigeration apparatus is removably mounted within the loading space.
6. A transport vehicle according to claim 4, wherein the at least one portable refrigeration apparatus is removably mounted adjacent the loading space.
7. A transport vehicle according to claim 4, further comprising a mounting space and means for exchanging air between the mounting space and the loading space, wherein the at least one portable refrigeration apparatus is removably mounted in the mounting space.
8. A method of cooling the loading space of a transport vehicle using a portable refrigeration apparatus that contains a phase change material and includes a temperature indicating means, the method including the steps of: cooling the refrigeration apparatus to reduce the temperature of the phase change material to below its freezing point; and removably mounting the portable refrigeration apparatus to the transport vehicle.
9. A method according to claim 8, wherein the step of cooling the portable refrigeration apparatus involves placing the portable refrigeration apparatus in a freezer unit.
10. A refrigeration apparatus substantially as herein described and with reference to the drawings.
GB0620438A 2006-10-14 2006-10-14 Refrigeration Apparatus and Vehicle Incorporating the Same Withdrawn GB2442739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0620438A GB2442739A (en) 2006-10-14 2006-10-14 Refrigeration Apparatus and Vehicle Incorporating the Same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0620438A GB2442739A (en) 2006-10-14 2006-10-14 Refrigeration Apparatus and Vehicle Incorporating the Same

Publications (2)

Publication Number Publication Date
GB0620438D0 GB0620438D0 (en) 2006-11-22
GB2442739A true GB2442739A (en) 2008-04-16

Family

ID=37491540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0620438A Withdrawn GB2442739A (en) 2006-10-14 2006-10-14 Refrigeration Apparatus and Vehicle Incorporating the Same

Country Status (1)

Country Link
GB (1) GB2442739A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979297A1 (en) * 2011-08-30 2013-03-01 Air Liquide VEHICLE FOR REFRIGERATED TRANSPORT OF PRODUCTS WHOSE ENERGY CONSUMPTION IS IMPROVED BY INCORPORATING A PHASE-CHANGE MATERIAL IN THE WALLS OF THE FUND
CN108603718A (en) * 2015-12-11 2018-09-28 可口可乐公司 The system and method for phase-change material panel and filling unit for providing the cabinet for cooling down vending machine
US20240066942A1 (en) * 2022-08-24 2024-02-29 Caleb Arthur Sommers System for transporting perishable goods utilizing phase change materials and waste heat

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB242409A (en) * 1924-10-08 1925-11-12 Housing Company Improvements in or relating to refrigerating apparatus
US4177652A (en) * 1976-08-24 1979-12-11 Volk Lawrence C Refrigeration system
DE3031176A1 (en) * 1980-08-18 1982-04-01 Zorn, Edgar, 6300 Gießen Cold-storage vessel with refrigeration mass - has temp. gauge showing state of charge of vessel
EP0122189A1 (en) * 1983-04-01 1984-10-17 Société dite: CRISTOPIA Refrigeration equipment for isothermal vehicles
GB2263760A (en) * 1992-01-08 1993-08-04 Boc Group Plc Refrigeration using solid carbon dioxide
EP1053726A2 (en) * 1999-05-19 2000-11-22 3M Innovative Properties Company Thermal pack incorporating a temperature indicator
GB2351798A (en) * 1999-04-14 2001-01-10 Lamberet Const Isothermes Installation for maintaining an isothermal chamber at a low temperature
GB2422657A (en) * 2005-01-28 2006-08-02 Sean Flanagan A Cold Pack Including a Thermochromic Material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB242409A (en) * 1924-10-08 1925-11-12 Housing Company Improvements in or relating to refrigerating apparatus
US4177652A (en) * 1976-08-24 1979-12-11 Volk Lawrence C Refrigeration system
DE3031176A1 (en) * 1980-08-18 1982-04-01 Zorn, Edgar, 6300 Gießen Cold-storage vessel with refrigeration mass - has temp. gauge showing state of charge of vessel
EP0122189A1 (en) * 1983-04-01 1984-10-17 Société dite: CRISTOPIA Refrigeration equipment for isothermal vehicles
GB2263760A (en) * 1992-01-08 1993-08-04 Boc Group Plc Refrigeration using solid carbon dioxide
GB2351798A (en) * 1999-04-14 2001-01-10 Lamberet Const Isothermes Installation for maintaining an isothermal chamber at a low temperature
EP1053726A2 (en) * 1999-05-19 2000-11-22 3M Innovative Properties Company Thermal pack incorporating a temperature indicator
GB2422657A (en) * 2005-01-28 2006-08-02 Sean Flanagan A Cold Pack Including a Thermochromic Material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979297A1 (en) * 2011-08-30 2013-03-01 Air Liquide VEHICLE FOR REFRIGERATED TRANSPORT OF PRODUCTS WHOSE ENERGY CONSUMPTION IS IMPROVED BY INCORPORATING A PHASE-CHANGE MATERIAL IN THE WALLS OF THE FUND
WO2013030483A1 (en) * 2011-08-30 2013-03-07 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Vehicle for the refrigerated transport of products the energy consumption of which is improved by incorporating a phase-change material into the walls of the vehicle body
CN108603718A (en) * 2015-12-11 2018-09-28 可口可乐公司 The system and method for phase-change material panel and filling unit for providing the cabinet for cooling down vending machine
US20240066942A1 (en) * 2022-08-24 2024-02-29 Caleb Arthur Sommers System for transporting perishable goods utilizing phase change materials and waste heat

Also Published As

Publication number Publication date
GB0620438D0 (en) 2006-11-22

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