COOLING SYSTEM FOR A COMBUSTION ENGINE AND METHOD OF CONTROLLING THE SAME

• Main Authors: VENEZIANI, Thomas, CHALMETTE, Bruno, DUBOIS, Sylvain
• Format: Patent
• Language: English; French; German
• Published: 17.01.2024
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The invention relates to a cooling system (39) for an internal combustion engine (1) comprising two gas-circulation lines (7, 9), the said cooling system (39) comprising two heat exchangers (17, 35) connected to the two gas-circulation lines (7, 9), and a circuit (55) through which heat-transfer fluid circulates and which comprises: - a heat-exchange portion (37) serving the heat exchangers and having two ends, each one being connected to a valve, - a main leg (91) connected to the valves and serving the engine, - a bypass leg (83) connected to the valves, and said cooling system (39) further comprising: - a controller (77) able to control the valves, between a state of normal operation in which the valves allow the heat-transfer fluid to circulate in the main leg and the heat-exchange portion, and a preheat state in which the two valves allow the heat-transfer fluid to circulate in the main leg and the bypass leg. The invention also relates to a method for controlling the cooling system.