COMBINED COOLING SYSTEM OF INTERNAL COMBUSTION ENGINE Russian patent published in 2023 - IPC F01P5/00 F01P7/14 

FIELD: engine building.

SUBSTANCE: invention can be used in internal combustion engines. A combined cooling system of an internal combustion engine contains radiator (3), fan (7), ejectors (6), guiding casing (4), and tubular lines (5). The system additionally contains radiator flap (2) made in the form of active blinds with a variable passage section and electric drive (1), installed in front of radiator (3) in vertical guide rails with the possibility of reverse rotation of blinds and movement from an edge lower position to an upper position. There are also electromagnetic coupling (12) of a drive of fan (7) and electric-drive pump (14). Electric-drive pump (14) is installed on an end surface of internal combustion engine (16), and it supplies cooling liquid first to head (15) of a block of cylinders. Tubular lines (5) are made in the form of active outlet collectors with a variable inner passage section by means of adjusting flaps (8) installed on axes in each of outlet collectors and having electric drive (9). Control of the cooling system is performed with control unit (17) based on signals of sensors of rotations of a crankshaft, frequency of rotation of fan (7), position of active blinds and adjusting flaps (8), pressure in the outlet collector, and temperature of cooling liquid of the cooling system, as which glycerin is used.

EFFECT: provision of a stable set temperature mode of an internal combustion engine with a variable load and reduction in energy costs for a drive of a fan and a pump.

1 cl, 1 dwg