Cooling system and control method of internal combustion engine and vehicle

Abstract

The invention provides a cooling system of an internal combustion engine. The system comprises a water pump and an internal combustion engine cylinder body. A gas inlet side water jacket, an exhaust side water jacket, an integrated exhaust manifold water jacket and a cylinder cover main water jacket are arranged on the internal combustion engine cylinder body. A water outlet of the water pump is connected with the exhaust side water jacket, and cooling liquid is pumped to the exhaust side water jacket through the water pump. The exhaust side water jacket is connected with the cylinder cover main water jacket and the integrated exhaust manifold water jacket at the same time, and two parallel water paths are formed by the cylinder cover main water jacket and the integrated exhaust manifold water jacket. The cylinder cover main water jacket and the integrated exhaust manifold water jacket are connected with the gas inlet side water jacket at the same time. Divisional design is carried outon the water jackets, the brand-new cooling circulating water paths are constructed through the water jackets in different regions, the region with higher temperature is firstly cooled, then the region with lower temperature is cooled, uneven contraction of the parts of the cylinder body can be avoided, too large deformation can be avoided, structure stability can be improved, and the service life can be prolonged.

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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