Extender engine cooling water cavity structure

Abstract

The invention relates to an extender engine cooling water cavity structure which comprises a cold water cavity and a cylinder sleeve arranged in the cold water cavity. The cold water cavity is provided with a water inlet and a water outlet window. The outer side of the water outlet window is further provided with a sealing groove which is used for mounting a sealing part. The side wall of the cylinder sleeve is provided with an inner cooling fin. The outer surface of the cold water cavity is provided with outer cooling fins. By adoption of the extender engine cooling water cavity structure, a cylinder is internally provided with the inner cooling fin, the cooling area is effectively increased, and meanwhile, the water storage volume of the cold water cavity is increased so that cooling water can take more heat out of the cylinder, the operation temperature of an engine is effectively lowered, and the service life of the engine is prolonged.

Description

technical field [0001] The invention belongs to the field of range extender engines, in particular to a cooling water chamber structure for a range extender engine. Background technique [0002] A range extender usually refers to a kinetic energy device that can provide additional electric energy to help electric vehicles or electric equipment extend the running time. Ordinary range extenders are usually composed of an engine and a generator; the engine part of the range extender is different from the The fuel engine used alone is especially limited by the volume and weight and the use environment. The range extender engine generally has a small displacement and low power, which is different from ordinary fuel engines in structure and function. The water channel of the cylinder body of the water-cooled engine currently on the market is a spiral water channel. There is no heat dissipation structure in the water channel, and it is only a water flow channel. Therefore, the co...

AI Technical Summary

Problems solved by technology

The water channel of the cylinder body of the water-cooled engine currently on the market is a spiral water channel. There is no heat dissipation structure in the water channel, and it is only a water flow channel. Therefore, the contact area between the cooling water and the cylinder block is very small, and the heat taken away by the cooling water from the cylinder block is small. Too much, making it difficult for the engine to cool down during operation, and the overall service life of the engine is reduced

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