Patent ID: 7171824

Claim:
A cooling or heating device in an absorption heat pump of GAX type, comprising: a generator; a heat exchanger of GAX type; an absorber; a condenser; an evaporator; a pump connected to said absorber and generator; a first circuit for refrigerant solution circulating through the device and connecting together at least said generator, GAX heat exchanger, absorber, condenser, evaporator, and pump; and a valve device configured to modify said first circuit to vary a manner in which the absorber, condenser, and evaporator are connected together; at least a first and a second heat exchange means for enabling at least one phase of the refrigerant solution circulating through said first circuit to be changed and to enable thermal energy to be exchanged against an external fluid, said first and second heat exchange means each comprising at least first and second mutually separate sub-heat exchangers arranged to function either as an evaporator or as an absorber and condenser, depending on an operating mode of the device.