摩托车的种类及结构原理(国外英文资料).docVIP

摩托车的种类及结构原理(国外英文资料) The type and structure of the motorcycle The classification of motorcycles Different countries have different ways of classifying motorcycles. International standards (iso3833-1977) are divided by speed and weight: motorcycle and motorcycle Car. The method of classification of motorcycle of our country, basically have two kinds: one kind is to press engine of discharge and top design speed, cent is light motorcycle and motorcycle. The working volume of a portable motorcycle engine is no more than 50 Milliliter, the maximum design speed is not more than 50 kilometers per hour. Motorcycle refers to the engine with a capacity of more than 50 ml, with the highest design speed of two or three cycles of more than 50 kilometers per hour. The other one is on wheels The number and position are divided into two wheels, a tricycle and a tricycle. It is commonly used to classify the use, structure and engine type and volume of work. If it is only used in the urban and short distance, the speed limit will be no more than 50 Inside, compact, compact scooters or scooters. Need frequent round-trip between city and country, can ride on two people, appropriate to choose the average motorcycle that the engine has a capacity of 125 ~ 250ml. Such as The roads are poor, require high-speed driving or for general competition, and the off-road motorcycle is used. The basic composition of motorcycle The motorcycle consists of engine, transmission system, walking system, steering, braking system and electrical instrument device. The overall structure of the motorcycle and the name of the parts. (1) engine The characteristics of motorcycle engine (1) the engine is a two-stroke or four-stroke gasoline engine. (2) it is cooled by air and cold, and it has two kinds of wind and cold. The general model adopts the natural wind that relies on the air blowing through the cylinder cover and the radiator on the cylinder Cold and cold. High-power motorcycle engine in order to guarante