A cooling system including a first cooling apparatus thermally exposed to a space to be cooled. The cooling system further includes a second cooling apparatus thermally exposed to the space to be cooled and thermally exposed to the first cooling apparatus. Heat discharged from the second cooling apparatus powers the first cooling apparatus.

A vehicular cooling device capable of instant cooling, includes: a main cooling system including a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator which are connected for circulating a refrigerant, and an instant cooling system for enabling the refrigerant to flow to the liquid receiver, the expansion valve, the evaporator and a pre-cooling means disposed between the evaporator and the compressor, wherein the vehicular cooling device is capable of instantly cooling an inside of the vehicle by enabling the refrigerant not to circulate through a line of the main cooling system when the instant cooling system operates, and enabling the refrigerant stored in the liquid receiver to flow to the pre-cooling means via the evaporator due to pressure difference between the liquid receiver and the pre-cooling means.

A method for operating a refrigeration system of a motor vehicle, which refrigeration system has a refrigerant, is disclosed. A ratio between a first component of the refrigerant and a second component of the refrigerant is set in accordance with a parameter, in particular an external parameter. An assembly of a refrigeration system of a motor vehicle is also disclosed.

An absorption heat pump device capable of suppressing a reduction in performance as the absorption heat pump device resulting from improper control of the concentration of an absorbing liquid due to the inclination, shaking, etc. of a vehicle body at the time of mounting the absorption heat pump device on a vehicle is provided. An absorption heat pump device in which an absorbing liquid absorbs refrigerant vapor includes an evaporator that evaporates a refrigerant and an absorber in which the refrigerant vapor evaporated in the evaporator is absorbed by the absorbing liquid. The absorber includes a heat exchange section that removes absorption heat of the refrigerant vapor into the absorbing liquid and a membrane member, disposed so as to surround and cover the heat exchange section that the absorbing liquid contacts, through which the refrigerant vapor can pass but the absorbing liquid cannot pass.

A refrigeration system is provided including a vapor compression cycle (20) having a condenser (22), and expansion valve (24), and evaporator (26) and a compressor (28). A refrigerant is configured to circulate through the vapor compression cycle. The refrigeration system also includes an absorption refrigeration cycle (30) having an absorber (32) and a desorbed (34) arranged in a generally closed loop configuration. An absorption solution is configured to circulate through the absorption refrigeration cycle. The vapor compression cycle and the absorption refrigeration cycle are substantially integrated. The absorber is fluidly coupled to the compressor and is configured to generate a mixture of refrigerant and absorption solution. The desorber is fluidly coupled to the condenser and is configured to separate the refrigerant from the mixture and increase a pressure of the refrigerant vapor.

An air changeover system for a metal hydride heat pump is disclosed. The system includes metal hydride reactor modules aligned and separated by a partition; a shell containing the reactor modules, the shell is compartmentalized to define separate insulated chambers for each of the reactor modules; and a bearing assembly supporting the modules at a location about the partition, wherein the bearing assembly rotates said modules about an axis during the absorption and the desorption mode. The system reduces thermal inertia and pressure drop in the heat transfer medium while flowing through the heat pump, to enhance the performance and conserve energy.

A cabin air control system for a vehicle comprises an air conditioning device having a positive pressure region in communication with a cabin, and a negative pressure region in selective communication with the cabin and/or outside environment via a circulation control device, and an adsorption device comprising a single adsorption assembly and a switching device configured to switch the adsorption device between a standby mode, an adsorption mode and a regeneration mode.

The present invention relates to an enclosure which is refrigerated and kept at a predetermined set temperature (T.sub.e), containing the evaporator (7) of a refrigerating unit (5). Said enclosure is characterised in that: same comprises a thermochemical system (9) the circuit of which is separate from that of the refrigerating unit and which includes a reactor (1) containing a reactive product capable of absorbing a gas, a condenser and an evaporator arranged in said enclosure (3), the reactive product and the gas being such as to be the subject, when placed in the presence of one another, of a reaction which has the effect of the gas being absorbed by the reactive product and, conversely, to be the subject of a desorption reaction of the gas absorbed by the reactive product when heat is applied thereto once the gas has been absorbed, the thermochemical system having two operating phases, namely a cold-production phase and a regeneration phase, said system comprising measurement (14) and control (19) means which only enable the thermochemical system (9) to enter the regeneration phase if the temperature of the condenser (17) thereof is below a predetermined threshold temperature (T.sub.s).

An in-vehicle absorption heat pump device comprises a regenerator; an in-vehicle heat source heating absorbent in the regenerator; a gas-liquid separator; a condenser condensing gas phase separated from the absorbent; an evaporator evaporating a condensate to form vapor; an absorber for bringing the relatively concentrated absorbent in liquid phase in contact with the gas phase to cause the absorbent to absorb the gas phase and be relatively diluted; an absorbent circulation source circulating the absorbent; a bypass passage connecting a liquid-phase storing portion of the gas-liquid separator and the regenerator while bypassing the absorber; and a bypass transfer source in the bypass passage returning the absorbent in the gas-liquid separator to the regenerator. To dilute absorbent in the absorber, a diluent passage allows the condenser and the absorber to communicate and the condensate in the condenser to be supplied to the absorber through the diluent passage by a dilution element.

An absorption cycle based system is disclosed for using waste heat from a vehicle and providing selective heating, cooling, and dehumidifying to a vehicle compartment. The system includes a waste heat loop in thermal communication with a power generating unit of the vehicle, and a vapor absorption subsystem. The vapor absorption subsystem may include a thermal compressor in thermal communication with the waste heat loop, a radiator unit, a condensing unit for heating the vehicle compartment, an evaporating unit for selectively cooling and dehumidifying the vehicle compartment, and a plurality of valves configured to selectively direct refrigerant through the vapor absorption subsystem. The vehicle compartment may include at least one of a passenger cabin, an electronics housing, a battery pack, an engine compartment, and a refrigeration compartment.