Motorcycle water cooling engine

Abstract

The invention discloses a motorcycle water cooling engine. An annular closed cylinder water way surrounding a cylinder hole is formed in an air cylinder body, a water inlet nozzle is arranged on the side face of the air cylinder body, and a cylinder body water outlet is formed in the upper end face of the air cylinder body. The water inlet nozzle and the cylinder body water outlet communicate withthe cylinder body water way. The upper end of the outer-layer inner wall, away from the cylinder hole, of the cylinder body water way so that the cross section area of the upper end of the cylinder body water way can be larger than the lower end cross section area, and the cylinder body water outlet is close to the outer edge of the upper end of the cylinder body water way. The corresponding design is conducted on the cylinder head water way and the water inlet in the air cylinder head. According to the structure, the volume of the water way is increased, and the amount of cooling water in the cylinder body and the cylinder head is increased. After the water way is expanded outwards, the cylinder body water outlet and the cylinder head water inlet are correspondingly moved outwards, so that ablation of an air cylinder pad due to high-temperature and high-pressure gas influences is not likely to happen, and circulation water is prevented from entering the engine.

Description

technical field [0001] The invention relates to a motorcycle engine, in particular to a motorcycle water-cooled engine, which belongs to the technical field of engines. Background technique [0002] In recent years, the three-wheeled motorcycle engine has become a good helper for the majority of farmers to make a fortune, and the engines used are increasingly developing in the direction of water cooling and large displacement. At present, CG engines are commonly used in tricycle engines. Since the traditional CG engines are developed on the basis of Honda CG125, the original intention is to serve two-wheel vehicles, so its components have not been significantly improved and upgraded on the basis of the original two-wheel vehicle engines. Therefore, it cannot meet the actual use environment of tricycles in rural areas (heavy load, poor road conditions, poor maintenance awareness and maintenance conditions of users), which makes it difficult for the current engine to keep up w...

AI Technical Summary

Problems solved by technology

[0004] Deficiencies in the cylinder block and cylinder head: the structure of the existing cylinder block is as follows: figure 1 As shown, the inner ring of this type of cylinder is cast iron cylinder liner, and the outer periphery is aluminum alloy. After the two are combined, a water channel is formed in the middle. The circulating water enters the water channel from the water inlet, and then enters the cylinder head water channel from the top outlet.

At the same time, in order to prevent the sealing gasket on the screw from closing the oil passage after the screw is installed, a channel is opened under the gasket on the sinking platform to connect the main hole of the sinking hole with the upper surface of the sinking platform. After the hole comes up, the counterbore must be filled to reach the cylinder head cover, which is not good for the lubrication of the upper parts, and may easily lead to problems such as wear and locking

[0006] Deficiencies in the crankcase combination: the crankcase combination is formed by combining the left crankcase and the right crankcase

Foreign matter at the bottom of the traditional water-cooled engine crankcase combination can easily block the oil filter, and fine particles can easily enter key parts such as the crankshaft pin roller, resulting in abnormal wear or seizure of engine components

In addition, when the whole vehicle is climbing a slope for a long time or turning quickly, problems such as high engine temperature and failure of the oil pump to absorb oil are prone to occur, resulting in damage to the engine due to lack of oil.

[0007] Deficiencies in the oil filter: During the working process of the engine, metal wear debris, dust, carbon deposits and colloidal deposits oxidized at high temperatures, water, etc. are continuously mixed into the lubricating oil

With the development of oil-cooled engines, the power of oil-cooled engines is increasing, and the oil demand of oil-cooled engines is also increasing. At present, the traditional CG engine oil pump has the problem of insufficient pumping oil. If the engine oil pump Insufficient pump oil will lead to high engine temperature and wear of engine parts due to slow oil supply, which cannot meet the use requirements

At present, the traditional CG engine oil pump is limited by the installation hole, and it is impossible to increase the oil pumping volume of the oil pump by increasing the outer diameter of the inner and outer rotors.

[0009] Therefore, the existing engine cylinder block, cylinder head, crankcase combination, oil filter and oil pump have some problems in varying degrees. The existence of these problems leads to the decline of the overall performance of the engine, the reduction of reliability, and the shortening of service life.

Images