Internal combustion engine cooling system, control method and vehicle

Abstract

The invention provides a cooling system for an internal combustion engine. The system includes a water pump and a cylinder block of the internal combustion engine. The cylinder block of the internal combustion engine is provided with an intake side water jacket, an exhaust side water jacket, an integrated exhaust manifold water jacket and a cylinder head main water jacket. ;The water outlet of the water pump is connected to the water jacket of the exhaust side, and the coolant is pumped to the water jacket of the exhaust side through the water pump; the water jacket of the exhaust side is connected to the main water jacket of the cylinder head and the water jacket of the integrated exhaust manifold at the same time. The cover main water jacket and the integrated exhaust manifold water jacket form two parallel water paths; the cylinder head main water jacket and the integrated exhaust manifold water jacket are connected to the intake side water jacket at the same time. In the invention, the water jacket is divided into zones, and a new cooling circulating water circuit is constructed through the water jackets of different zones, and the temperature of the area with higher temperature is cooled first, and then the temperature of the area with lower temperature is cooled, so as to avoid the unevenness of each part of the cylinder body. Shrinkage, preventing excessive deformation, improving structural stability and service life.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an internal combustion engine cooling system, a control method and a vehicle. Background technique [0002] As the power plant of the vehicle, the internal combustion engine is at a suitable working temperature is very important to ensure the structural stability and working reliability of the internal combustion engine. [0003] At present, the temperature control of the internal combustion engine is usually to install an integral water jacket structure on the cylinder block, through which the cooling fluid circulating in the water jacket absorbs the heat emitted by the internal combustion engine cylinder block, reduces the temperature of the internal combustion engine, and prevents the overheating of the internal combustion engine's moving parts due to high temperature expansion. Cooperate with the gap to avoid high temperature failure of lubricating oil. [0004] However, wh...

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Problems solved by technology

[0004] However, when the internal combustion engine is working, the temperature of the cylinder block is not uniform. In the existing cooling system, due to the unreasonable structure of the water jacket, the coolant will be directly connected to each cylinder block with the water jacket under the guidance of the water jacket. Parts contact, resulting in uneven stress everywhere in the cylinder block, large deformation of the cylinder block, affecting the normal operation of the internal combustion engine and reducing the life of the internal combustion engine

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