Motor tricycle engine having multiple refrigeration modes

Abstract

The invention relates to a three-wheeled motorcycle engine with a plurality of cooling methods. A plurality of straight through water cooling pipelines connected with cooling fins into a whole are arranged at the outer ends of partial cooling fins in front of and at the back of or on the left and right sides of a cylinder block; gaps are left between two neighboring water cooling pipelines; two cover plates are arranged at both ends of the water cooling pipelines and two end covers are arranged outside the two cover plates; water cavities are formed between the inner walls of the end covers and the cover plates and are communicated with the water cooling pipelines via permeable holes on the cover plates; the end covers are fixedly connected with the ends of the water cooling pipelines via the cover plates and are provided with water inlets and outlets. The engine can be available for both water cooling and air cooling, which can not only avoid damaging cylinder blocks, pistons and other parts due to high temperature when water cooling systems are short of water but also protect the cylinder blocks from frost damage in cold weather. Furthermore, the engine more effectively solves the problem that original techniques are dependent on mechanical parts and human monitoring, has simple structure and reliable running, reduces the maintenance cost and greatly improves the running efficiency of the three-wheeled motorcycles.

Description

technical field [0001] The invention relates to a motorcycle engine, in particular to a multi-cooling three-wheeled motorcycle engine which can be cooled by water, wind or oil. Background technique [0002] The thermal load is a comprehensive evaluation of the maximum working temperature of the parts of the three-wheeled motorcycle engine, the temperature gradient in different directions, the corresponding thermal stress, thermal strain, and the low-frequency and high-frequency fatigue that the parts are locally subjected to. Important technical parameters for the normal operation of the engine. Under normal working conditions, the three-wheeled motorcycle engine should operate within the controlled temperature limit, otherwise the parts and oil will not be able to maintain the original quality characteristics, causing fatal engine failures soon, such as cracking of pistons and piston rings, Piston and cylinder top burnt, piston top burned through and other results. In ord...

AI Technical Summary

Problems solved by technology

[0003] One is realized by a circulating water cooling system, which mainly injects cooling water into the water chamber set between the cylinder head and the inner and outer walls of the cylinder block, and requires additional water tanks and auxiliary water tanks to circulate through pumps and pipelines System and forced air-cooled fan to cool the motorcycle engine. This circulation cooling method has a complex structure and high cost, and each component is easily damaged.

[0004] The other is a boiling water-cooled engine. Chinese patent discloses a "three-wheel motorcycle boiling water-cooled engine", announcement number: 200420074728.0. It mainly arranges a normal-pressure water tank on the radial periphery of the cylinder block. After the heat is transferred to the water in the water tank, it turns into water vapor to carry out the heat. This cooling method has a simple structure, low cost and easy maintenance. However, when the temperature is low, it is easy to freeze and damage the cylinder.

[0005] No matter what kind of water-cooled engine, it is currently unable to solve the problem that the piston and cylinder will inevitably be damaged due to high temperature when there is a lack of water.

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