Patent ID: 8584457

Claim:
A cooler arrangement for a vehicle which is powered by a supercharged combustion engine, the arrangement comprises: an inlet line leading compressed air to the combustion engine; a first charge air cooler and a second charge air cooler located at the inlet line and configured for cooling the compressed air before it is led into the combustion engine; and an energy recovery system comprising a line circuit with a circulating medium, therein, at least one heat exchanger at the line circuit such that the circulating medium absorbs heat at the heat exchanger so that the medium becomes vaporized, a turbine at the line circuit in which the vaporized medium is expanded; at least one condenser located after the turbine in the line circuit and in which the medium is cooled to a temperature at which it condenses; a first cooling circuit with a first cooler located and configured to cool a circulating coolant in the first cooling circuit, a second cooling circuit with a second cooler located and configured to cool a circulating coolant in the second cooling circuit to a lower temperature than the temperature to which the coolant is cooled in the first cooler, and a third cooling circuit with a third cooler located and configured to cool a circulating coolant in the third cooling circuit to a lower temperature than the temperature to which the coolant is cooled in the second cooler; and wherein the third cooling circuit is located and configured so that coolant cooled in the third cooling circuit cools the compressed air in the second charge air cooler and the medium in the condenser and wherein the energy recovery system absorbs thermal energy from the compressed air in the first charge air cooler.