Abstract:
A container comprises a chamber for accommodating one or more components whose temperature is to be controlled, and a heat transfer device for receiving heat transfer fluid for controlling the temperature of the chamber. The chamber has a fluid inlet for introducing a second fluid into the chamber and a fluid inlet permitting the second fluid to exit from the chamber. A fluid impeller is provided for causing the second fluid to flow in heat: exchange relationship with the heat transfer device and into the chamber through the fluid inlet to cool one or more components in the chamber. A fluid coupling is provided for coupling the heat transfer device to a fluid temperature conditioning system installed in a vehicle.
Abstract:
The invention relates to a cooling system for an electric refrigerator which comprises a compression device, a condensation device and an evaporator device. The above-mentioned compression device comprises two compression devices which are connected together. A check valve is provided between each of said above-mentioned compression devices and the above-mentioned evaporator device. When high cooling power is required by the cooling system of the electric refrigerator, that is, when the electric refrigerator is often used, both above-mentioned compression devices can be operated simultaneously. As a result, the required cooling capacity is provided. The check valve can be controlled by the provision of two connected compression devices. The compressed air provided by the above-mentioned compression devices is condensed by the above-mentioned condensation devices to ensure cooling. No direct flow of the compression air to the above-mentioned evaporating device occurs. When high cooling power is required by the cooling system of the electric refrigerator, it can be provided by any of the above-mentioned compression devices. As a result, the cooling power is sufficient and it is also possible to save energy.
Abstract:
A method of regulating the refrigerant temperature for a beverage machine, including a refrigeration system for producing a frozen beverage, operating at least one compressor at a speed to flow the refrigerant through the refrigeration system of the beverage machine and cooling the refrigerant with at least one condenser. The method may also include controllably varying the flow of air across the at least one condenser or the speed of the at least one compressor.
Abstract:
A tandem compressor cycle is utilized that delivers compressed refrigerant to a common discharge manifold, and then to a common condenser. From the common condenser, the refrigerant passes to a plurality of evaporators, with each of the evaporators being associated with a separate environment to be conditioned. Each of the evaporators is associated with one of the plurality of compressors. By utilizing the common condenser, yet a plurality of evaporators, the ability to independently condition a number of environments is achieved without the requirement of having a dedicated circuit with multiple additional components. Thus, the overall system cost can be greatly reduced. In embodiments, one or more of the plurality of compressors can be provided by a compressor bank having its own plurality of compressors.
Abstract:
A refrigeration system both cools and heats frozen dessert mix in at least two hoppers and at least two freezing cylinders. A liquid line solenoid valve at the inlet of each of the hoppers and the freezing cylinders controls the flow of refrigerant from the condenser. A hot gas solenoid valve at the inlet of each of the hoppers and the freezing cylinders controls the flow of hot refrigerant from the compressor. The system further includes a hot gas bypass valve that is opened when only the hoppers are being cooled to provide additional compressor load. An EPR valve proximate to the hopper discharges varies the temperature of the refrigerant exchanging heat with the mix in the hoppers. A CPR valve controls the inlet pressure of the compressor by reducing the amount of hot refrigerant flowing into the compressor suction. A TREV valve injects liquid refrigerant to the compressor suction to control excessive compressor discharge during the cool cycle.
Abstract:
Die Erfindung betrifft eine Klimaanlage, insbesondere für ein Kraftfahrzeug, mit mindestens einem als Verdampfer dienenden Wärmetauscher (103; 203; 203'; 203") und einem als Kondensator dienenden Wärmetauscher (103'; 203; 203'), wobei mindestens zwei Wärmetauscher als ein einziger kombinierter Wärmetauscher (103/103'; 203/203'/203") ausgebildet sind.
Abstract:
An improvement in a refrigeration system for cabinets provided with a top cover and with internal peripheral walls (P), made of metallic sheet and around which is seated an evaporating means (1) connected to the outlet of an expanding device (2) which is connected to the outlet pf a condenser (3) and to the suction of a compressor (4) of the refrigeration system, said evaporating means (1) comprising at least two tube extensions (10), each of them being seated around a respective height portion of the internal peripheral walls (P) and having a refrigerant fluid inlet end maintained in fluid communication with a respective expanding device (2), and a refrigerant fluid outlet end maintained in fluid communication with the compressor (4).
Abstract:
A refrigerator, comprising a two-stage compressor (12A) capable of efficiently cooling both a refrigerating compartment (2A) and a freezing compartment (5A). The high-pressure side outlet of the two-stage compressor (12A) is connected to a condenser (14A), the condenser (14A) is connected to a PMV (15A), and the refrigerating side outlet of the PMV (15A) is connected to the intermediate pressure side inlet of the two-stage compressor (12A) through a R capillary tube (16A) and a R evaporator (18A). The freezing side outlet of the PMV (15A) is connected to a F evaporator (26A) through a F capillary tube (24A), and the F evaporator (26A) is connected to the low-pressure side inlet of the two-stage compressor (12A) through a low-pressure suction pipe (28A). The PMV (15A) is switchable between a simultaneous cooling mode and a freezing mode. In the simultaneous cooling mode, the flow of a refrigerant flowing into the R evaporator (18A) is regulated by the PMV (15A) to control a temperature difference so that a difference between a temperature at the inlet of the R evaporator (18A) and a temperature at the outlet thereof becomes a set temperature difference (for example, 4°C).
Abstract:
A galley chiller system for an aircraft includes at least one condenser (42a, 42b) having a refrigerant fluid. The fluid within the condenser rejects heat to a first surrounding environment. To more efficiently use the condenser of the galley chiller system and reduce the requirement on other cooling systems within an aircraft, the condenser may reject its heat to a desired location using a heat exchanger (60, 62, 64). The galley chiller system includes at least one evaporator (44a, 44b) that receives fluid from the condenser. A first evaporator (44a) absorbs heat from a galley (24), which may include a bank of carts. The first evaporator is arranged in ducting (37) that carries cooled air to the carts. A second evaporator (44b) may absorb heat from a cabin recirculation air duct (38) of the aircraft cooling system. In this manner, the evaporators of the inventive galley chilling system cools not only the galley carts but also provides supplemental cooling to the aircraft cooling system thereby reducing its cooling requirements.