Heat management system and heat management method of an internal combustion engine

A thermal management system of an internal combustion engine comprising:

• at least one fluid chamber disposed at least partially within or around a cylinder head of a cylinder of the internal combustion engine, the at least one fluid chamber including at least one inlet line and at least one outlet line;
• at least one coolant delivery device for supplying a liquid coolant to the at least one fluid chamber;
• at least one heat sink connected to the at least one fluid chamber;
• a throttle device configured to vary the coolant volume flow rate supplied by the at least one coolant delivery device independent of the engine speed, the throttle device comprising at least one first valve connected to a load-setting unit for adjusting the engine load, the load-setting unit being configured to control the at least one first valve to increase the fluid flow rate through the at least one fluid chamber when the engine load is increased and reduce the fluid flow rate through the at least one fluid chamber when the engine load is reduced;
• and
• a sensor comprising a cylinder head temperature sensor or a fluid chamber temperature sensor or both;
• wherein by operating at least the at least one first valve for controlling the coolant flow rate through the at least one fluid chamber, the system is configured to control one or more of:
• the flow rate of the at least one coolant delivery device depending on the engine speed, the temperature of the at least one fluid chamber, or the engine load;
• and
• wherein at a constant or by a maximum of 100 revolutions per increasing engine speed and at reduction of engine load, the system is configured to maintain or increase the volume flow of coolant through the at least one heat sink after at least one minute after the load change and within a temperature range of the at least one fluid chamber from 60° C. to 100° C.