Tricycle

Abstract

The invention discloses a tricycle, which comprises a frame and a horizontal engine mounted on the frame. A wind gathering board is arranged on the upper part of the horizontal engine, and a big-front small-tail wedge-shaped space is formed between the wind gathering board and the horizontal engine; and the wedge-shaped space serves as an air guide duct for cooling the horizontal engine. The wind gathering board is conducive to gathering airflow flowing backwards and guiding the airflow to a cylinder block and a cylinder head, the cooling efficiency for the horizontal engine as a whole is greatly improved, the good product performance and long service life of the horizontal engine are guaranteed, the horizontal engine is just slightly modified, the wind gathering board is additionally arranged above the cylinder block, which has less impact on the overall layout of the tricycle and is suitable for tricycles, the cost is low, and the cost performance of the product is greatly improved.

Description

technical field [0001] The invention relates to the field of motorcycles, in particular to a tricycle. Background technique [0002] Three-wheeled motorcycles are widely used due to their small displacement, small body size, and good passability. According to the industry, three-wheeled motorcycles are generally divided into elderly vehicles, regular three-wheeled trucks and passenger three-wheeled vehicles. 1. The body is small, suitable for the transportation of small items in family life. It is more flexible. The engine generally installed is a horizontal engine, which is beneficial to the coordinated layout of the structure. Facing backwards is good for driving to generate cooling air for cooling the engine. However, in daily use, tricycles use heavy loads, low speeds and high engine speeds, and there is a general problem of high heat load, especially for elderly tricycles, which are slow to speed up. As a result, heat dissipation cannot be effectively carried out after...

AI Technical Summary

Problems solved by technology

[0002] Three-wheeled motorcycles are widely used due to their small displacement, small body size, and good passability. According to the industry, three-wheeled motorcycles are generally divided into elderly vehicles, regular three-wheeled trucks and passenger three-wheeled vehicles. 1. The body is small, suitable for the transportation of small items in family life. It is more flexible. The engine generally installed is a horizontal engine, which is beneficial to the coordinated layout of the structure. Facing backwards is good for driving to generate cooling air for cooling the engine. However, in daily use, tricycles use heavy loads, low speeds and high engine speeds, and there is a general problem of high heat load, especially for elderly tricycles, which are slow to speed up. As a result, heat dissipation cannot be effectively carried out after climbing. Although heat sinks are formed on the outer wall of the horizontal engine, due to the barriers formed between the heat sinks, the cooling wind generated by driving cannot effectively cool the heat between the heat sinks, making the tricycle The heat dissipation efficiency is poor, and the engine is in a state of high temperature for a long time, which seriously affects the quality and service life of the engine. Of course, in order to overcome the problem of excessive engine temperature, you can also change the cylinder head, cylinder head cover, box, The heat dissipation structure of the cover and the right cover, etc., but the cost is relatively high, and it is not suitable for economical tricycles. Therefore, the above shortcomings seriously affect the application of tricycles

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