Abstract: A heating, ventilation, and/or air conditioning (HVAC) system, includes a housing having a wall with an exterior surface configured to be exposed to an ambient environment. The HVAC system further includes a first heat exchanger disposed within the housing and forming part of a refrigerant circuit of the HVAC system and a second heat exchanger disposed within the housing and forming part of the refrigerant circuit, in which the second heat exchanger includes a coil coupled to the wall, such that the coil and the wall are configured to transfer heat between the ambient environment and refrigerant passing through the second heat exchanger.

Abstract: A method for preventing condensation on a surface of a domestic refrigeration device and a corresponding domestic refrigeration device having a refrigerated chamber, a refrigerant line, and a refrigerant circulation system structured to transfer heat energy from the refrigerated chamber into the refrigerant circulation system via the refrigerant line. The refrigerant line may include a heat-emitting section in heat-conducting contact with a trim strip of the refrigeration device running below the refrigerated chamber.

Abstract: An ice chest or portable cooler is disclosed which includes a unique construction which enables the cooler to maintain the contents therein at or below a desired temperature for an extended period of time. The top, walls, and bottom of the cooler utilize a shell which includes an inner and outer layer of a plastic and a relatively thick layer of an insulation material between the layers of plastic. The construction adds strength and rigidity to the cooler, while not increasing the weight as a result of the relatively light insulation material.

Abstract: A temperature maintenance storage unit includes a fan assembly, an evaporator coil assembly, a compressor unit, and an interior within which goods may be stored, with the fan assembly configured to selectively generate air currents over the evaporator coil assembly and within the interior. The temperature maintenance storage unit further includes an insulation pack assembly comprising a sealed generally flexible insulation pack containing a temperature control fluid, an insulation thermostat and an interior thermostat, with the insulation thermostat monitoring the temperature of the insulation pack assembly and the interior thermostat monitoring the temperature of the interior.

Abstract: A refrigeration device comprising a body, which has lateral walls and a rear wall and a condenser that is mounted on the exterior of the rear wall of the body. Said condenser extends over at least one of the edge zones of the exterior, behind which there is a respective lateral wall, when viewed from the direction of the depth of the body and a central zone of the exterior, behind which the interior of the body lies when viewed from the depth direction, is not covered by the condenser.

Abstract: The invention relates to a casing for receiving at least one energy storage device, whereof the temperature in the casing interior can be regulated to a predetermined temperature level. For this purpose the casing interior is thermally insulated and is in direct heat conducting connection with a heat transfer device, substantially the entire heat flow into and out of the casing interior taking place through the heat transfer device when the casing interior is closed.

Abstract: Disclosed herein is a machine room back cover integrated with a condenser for a refrigerator, which is capable of protecting a machine room in which a compressor as one of elements constituting a refrigeration cycle is provided and serving as a heat emission plate by which coolant heat emitted from a condenser is dissipated outside the refrigerator by contacting with air introduced from the external of the machine room.

Abstract: Disclosed is a refrigerator incorporating a condenser functioning as a backcover. The condenser is provided in one portion of the outer periphery of a machine room in a lower portion of the refrigerator while the machine is closed in other portions of the outer periphery so that air flow to/from the machine room is enabled only through the condenser to enhance cooling efficient and thus condensing efficient.

Abstract: Disclosed herein is a machine room back cover integrated with a condenser for a refrigerator, which is capable of protecting a machine room in which a compressor as one of elements constituting a refrigeration cycle is provided and serving as a heat emission plate by which coolant heat emitted from a condenser is dissipated outside the refrigerator by contacting with air introduced from the external of the machine room.

Abstract: A refrigerator condenser system includes an integral condenser coil and hot gas loop embedded in a floor and a vertical wall of a refrigeration compartment to increase heat transfer efficiency to ambient air. The condenser system is cast in place within the refrigerator cabinet to form a reliable, high efficiency, maintenance free refrigerator condenser system.

Abstract: Disclosed is a refrigerator incorporating a condenser functioning as a backcover. The condenser is provided in one portion of the outer periphery of a machine room in a lower portion of the refrigerator while the machine is closed in other portions of the outer periphery so that air flow to/from the machine room is enabled only through the condenser to enhance cooling efficient and thus condensing efficient.

Abstract: Methods and devices for retaining a heating element, such as warm refrigerant tubing, within a refrigerator cabinet. Semispherical raised dimples are formed upon a retaining panel in a rolled triple flange. The dimples are intermittently positioned along the retaining panel and maintain the warm refrigerant tubing in intimate surface contact with the exterior surface panel of the refrigerator. The raised dimples preclude significant intimate surface contact between the retaining panel and the tubing and permit insulating foam to be disposed between the two so that heat transfer is minimized. A dimpled flange arrangement is also used to retain tubing within a mullion. A sheet metal insert is also described that is formed having two retaining panels with raised dimples thereupon that maintain the tubing in intimate surface contact with the exterior surface panel that forms the facing for the mullion.

Abstract: A refrigerated serving device is disclosed. The refrigerated serving device is portable. It includes a food chilling area. A compressor is operatively connected to an evaporator coil and a condenser coil forming a refrigeration unit which maintains the food chilling area at a desired temperature.

Abstract: A refrigerated serving device is disclosed. The refrigerated serving device is portable. It includes a food chilling area. A compressor is operatively connected to an evaporator coil and a condenser coil forming a refrigeration unit which maintains the food chilling area at a desired temperature.

Abstract: In refrigeration; in order to transfer heat from the heat supplier, or to the heat absorber, it is necessary that temperature gradients be maintained between said heat exchangers and the interacting medium. These temperature gradients increase the difference between the temperature of the heat supplier and that of the heat absorber. The efficiency of refrigeration systems decrease as said temperature differences increase. Said mediums, if gaseous, as they frequently are, offer great resistance to heat transfer. This results in large temperature gradients and substantially reduces refrigeration efficiency. The present invention involves enveloping the enclosed space with the enclosure heat exchanger so that less heat has to be transferred through the gaseous contents, and additional, inexpensive, heat transfer surface becomes available. The reduction in temperature gradients result in increased efficiency.Recovery of reject heat for residential type water heating is also included as a natural extension.

Abstract: The surroundings heat exchanger envelops an enclosure's insulation so that it exchanges part of its heat load directly through the enclosure, instead of indirectly with the surroundings which would then exchange an equal amount of heat with the enclosure. This reduces the temperature differentials required to drive heat a transfer because little heat remains to be transferred by the indirect path.

Abstract: An overheat regulating system (10) for a passenger compartment (200) of a vehicle comprising at least one thermal conductor (2) containing a phase-change working substance (18) for cooling the overheated passenger compartment (200) automatically without consuming any man-made power when the vehicle is parked outdoor under direct sunshine. The thermal conductor (2) has three sections: an evaporator section (20), which is preferably attached to the inner surface of the roof panel (60) of the passenger compartment (200), a condenser section (22), which is preferably mounted on the top of the roof panel, and an adiabatic section (24), which connects the evaporator section (20) and the condenser section (22) continuously. A shielding slab (70) with open periphery is constructed on the roof panel to shield the condenser section from direct sunshine. The evaporator section (20) absorbs excess heat from the overheated vehicle passenger compartment and the absorbed heat vaporizes the working substance (18).

Abstract: Meals are placed on individual trays in an institutional kitchen. The individual trays have a first part carrying the meal portion intended to be eaten hot and covered with a thermally insulative cloche and a second part carrying the meal portion intended to be eaten cold. The individual trays are transported in a thermally insulated enclosure to the places where the meals are to be eaten, where they are distributed into local individual units having a thermally insulated enclosure. Each individual unit includes retractable contact terminals operated by an electromagnet and contacting external terminals on the cloche which are in turn electrically connected to an electrical heating element of the cloche. Accordingly, by supplying power to the contact terminals, the meal portions intended to be eaten hot and placed under the cloches are selectively heated. The device is relatively inexpensive and facilitates meal handlings in compliance with hygiene conditions.

Abstract: A refrigerator includes a front face surrounding the front openings of the storage compartments. Operation of the refrigerator tends to cause some portions of the face to be colder than the dew point temperature of the surrounding air. Moisture in the surrounding air tends to condense on such colder than dew point portions. Sheets of aluminum foil are in intimate contact with the inside of the case, extend along those portions of the face subject to condensation and project onto adjacent areas of the case which are warmer than the dew point temperature. This keeps the temperature of those portions subject to condensation above the dew point temperature. Portions of the doors, such as the adjacent peripheral walls of doors on multi-compartment units, also may tend to be below the dew point temperature. Sheets of aluminum foil are positioned in intimate contact with the inside of those portions of the doors and project onto adjacent areas of the doors which are warmer than the dew point temperature.

Abstract: A refrigerated serving device is disclosed. The refrigerated serving device is portable. It includes a food chilling area. A compressor is operatively connected to an evaporator coil and a condenser coil forming a refrigeration unit which maintains the food chilling area at a desired temperature.

Abstract: An energy transfer system is provided for a refrigeration appliance. The energy transfer system includes a fluid passage disposed in the housing of the appliance for enabling the transfer of a fluid into, through, and out of the housing. The fluid is contained in a vessel which can be disposed outside of the home or underground so that the fluid is cooled by the outside air or by the ground.

Abstract: A refrigerator having multi-compartments and having a heat pipe which transfers heat from a heat source in the refrigeration system to surfaces on the refrigerator which are prone to sweating such as the mullion between compartments. The refrigerator has a gas absorption refrigeration system and the heat pipe is routed from the generator in the system, between the inner and outer shells of the cabinet to the mullion. The heat pipe minimizes condensation of moisture on the external surface of the mullion.

Abstract: For enhanced cooling power in a beverage vending machine the compressor is arranged in a recess of the apparatus housing, and the condenser in the form of a coil-shaped tube, is arranged in a convection shaft connected to the recess. One wall of the shaft is formed by the rear wall of the housing. Inside the shaft the tube coil of the condenser is disposed diagonally upwards in the direction of the rear wall of the apparatus housing.

Abstract: Bar cabinet (1) with refrigerated (2) and non refrigerated compartment (3) with substantially reduced depth suitable to be hanged on a wall, at eye's height, whereby the survey of and the access to their content is essentially improved. The reduction of the depth is achieved, firstly, through the arrangement of the non cold parts of the absorption cooling unit (10) behind the non refrigerated compartment (3) which is placed beside the refrigerated compartment (2) and, secondly, through the arrangement of the evaporator (11) within the thermal insulation (4) of the refrigerated compartment (2).

Abstract: Disclosed is a method of and apparatus for heating and cooling. The method and apparatus employ a thermodynamic moat across which heat energy conductance can be entirely prohibited. The moat comprises a heat source for a heat pump. The heat pump can be contained within the thermal protection of the moat. Thus its energy of operation may be added to, rather than lost from, the system. Structures for absorbing solar irradiation are disclosed, as are means to contain these structures within the protection of the moat, thereby to overcome grave deficiencies of solar collectors used in cold climates. A method of and apparatus for utilizing the solar absorber structures for summer cooling are also disclosed.

Abstract: A cold beverage dispensing apparatus is powerable by compressed gas and has a thermally insulated cabinet having a cooling chamber containing a source of compressed gas and a water reservoir and a normally non-pressurized syrup pump fluidly connectible to a non-pressurized syrup tank in the chamber, a dispensing nozzle and a manual actuator are on the outside of the cabinet, a pneumatic power valve is operable to connect the gas source to the pump and expel syrup to the nozzle, a pneumatic water valve servo is connected to all of the power valves and the opening of any power valve will effect operation of the servo and opening of the water valve, the pump is inside of the syrup tank and used propellant gas is vented inside the cabinet, a gas bottle and the syrup tanks are racked on the inside of a cabinet door and the power valves are pneumatically connected in series between the gas source and the water reservoir.

Abstract: A system for conditioning the air of a selected area, e.g. a room, of a house or other building structure, including individual refrigeration units for respectively heating and cooling the room. The respective units are sized according to the heating and cooling loads of the room, and when heating add blower motor and compressor heat and when cooling exclude such extraneous heat.

Abstract: A refrigerated display case having a mechanism for impeding the formation of condensation around the frame of the opening of the display case or at the junction of a door and a case frame of the display case. In one preferred embodiment, the ballast used in connection with the lights on commercial refrigerators and freezers are secured to the base in a manner which allows the heat generated by the ballast to be used to raise the temperature of the case frame. In another preferred embodiment the return conduit of the refrigeration system is employed adjacent the case frame for transferring heat from the refrigerant in the conduit to raise the temperature of the case frame as well as to increase the efficiency of the refrigeration system. In both of these embodiments, electrical resistance wires are included to supplement the heating provided by the ballast and the refrigeration system to ensure that condensation is prevented from forming on a frame or other desired portions of the case.

Abstract: A refrigerating cabinet comprises a metallic external casing including a front wall, a rear wall, a left- and a right-hand sidewall, a top wall and a bottom wall with an opening formed in the front wall, an internal casing fitted into the external casing and having a plurality of walls which are disposed in opposing relationship with the individual walls of the external casing with suitable clearances therebetween, a pack of a heat insulating material filling the space created between the external and the internal casing, and a condenser tube for cooling down a refrigerant from a compressor before it is fed to pressure reduction means. The condenser tube extends from the compressor to the pressure reduction means by passing through the space between the external and the internal casing, and is disposed along the inside of selected corners each defined by adjoining two walls of the external casing.