US Patent 9394824 Cooling system for a combustion engine

An internal combustion engine's cooling system of which a cooling water regulator is situated in a cooling circuit, said regulator being driven by an engine control in a manner to temporarily wholly interrupt the flow of cooling water, said regulator being shunted by a subsidiary branch containing a blocking element which is associated with a lock driven by the engine control, and the blocking element being designed to be moved by the cooling water pressure in the subsidiary branch into an open position.