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建立人际资源圈Cars
2013-11-13 来源: 类别: 更多范文
Cars
Ford
The Model T greatly contributed to the spread of motorization by introducing various mechanisms for easy driving, such as a planetary gear transmission, as well as a low price owing to mass production that cut costs. A total of 15,007,033 units were built from 1908 to 1927, and the car triggered a revolution in social life-style.
The Model T introduced various features to facilitate driving, and the transmission was integrated with the engine. Its planetary gears -- two forward and one back -- could be shifted without use of a clutch. These mechanisms were also intended to meet mass-production system.
Benz
Various countries claim to be the first to produce a gasoline-powered automobile. Although there is room for argument, Germany\'s Karl Benz is now accorded this distinction with the threewheeler he produced in 1886. The engine, placed over the rear axle, is a horizontal, fourcycle, single-cylinder type was the first automobile equipped with a differential gear.
The small one-cylinder engine of this vehicle was mounted horizontally behind the seat in a frame developed from the prevailing tricycles. Its 0.9 horsepower was transmitted to the rear wheels via belt and chain, enabling a top speed of about 15km/h. A lever connected to
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