Engine and engine cooling device thereof

Abstract

The invention discloses an engine cooling device which comprises a cylinder body, a cylinder cover, a cylinder body ring cylinder water jacket, and a water pump for pumping cooling water into an engine. A chamber for cooling water to flow through is formed between the cylinder body and the cylinder body ring cylinder water jacket; a water jacket for the cooling water to flow through is arranged onthe cylinder cover and communicates with the chamber; and a water outlet of the water pump is connected with the water jacket through a cylinder cover water inlet pipe, so that the engine is cooled from top to bottom. According to the engine cooling device provided by the invention, a cooling effect on high-heat-load parts of the cylinder cover and a nose bridge area is improved, the cracking ofthe nose bridge area is avoided, and the service life of the engine is prolonged. The invention further discloses the engine comprising the engine cooling device.

Description

technical field [0001] The invention relates to the field of power machinery equipment, in particular to an engine cooling device. The invention also relates to an engine comprising the above-mentioned engine cooling device. Background technique [0002] With the continuous improvement of social demand and the development of engine technology, in order to increase the power and torque of heavy-duty engines, the theoretical explosion pressure involved is also getting higher and higher, resulting in higher and higher thermal loads on the engine. [0003] The cylinder head is one of the parts with the most complex mechanical structure and the highest mechanical load and thermal load in the engine. As the heat load of the engine becomes higher and higher, if the cooling is insufficient, it is easy to cause cracks in the cylinder head, etc., which will affect the use of the engine. life and personal safety of personnel. At present, the engine usually adopts water-cooling method...

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Problems solved by technology

[0004] The water pump pumps the cooling water into the cylinder first, and the water flows from the lower part of the cylinder to the upper part to cool the body and the piston. Since the combustion occurs in the upper part of the cylinder and the heat gathers to the upper part, the part with higher heat load is the upper part of the engine, cooling the body The cooling water absorbs part of the combustion heat and heats up, causing the high temperature cooling water to enter the nose bri

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