文档介绍：第13讲Unit10 typical EFI System
课前分析:
New words and phrases 1学时
Fuel injection 1学时
通过对文章的翻译、学****和讲解,掌握第十单元的汽车电控燃油喷射系统的英文知识,能够牢记该单元的汽车相关英语单词,并且能够拥有翻译Fuel injection部分文章的英语基础和理解能力。
重点:Fuel injection
本教学环节采用理论教学方法。通过举例、多媒体演示面,学生可以更直观的学****br/>
详见教学内容
教学内容:
通过结合日常生活中的实例以及发动机的整个构造,引出汽车燃油供给系统的作用和用途,从而引入正文,介绍汽车燃油供给系统相关知识。
words and phrases
摇臂 rocker 凸轮轴 camshaft
正时齿轮 timing gear 燃油箱 fuel tank
燃油泵 fuel pump 汽油滤清器 gasoline filter
化油器 carburetor 空气滤清器 air cleaner
进气管 intake manifold 排气管 exhaust manifold
火花塞 spark plug 点火线圈 ignition coil
断电器 breaker 蓄电池 storage battery
发电机 generator 水泵 water pump
散热器 radiator 风扇 fan
2. The fuel tank is used to store the fuel of engine needed. It is usually located in rear of the vehicle. The fuel tank is designed to fit around frame and to be protected from impacts. These are several baffles insides the fuel tank to restrict fuel movement during rapid starts and stops, cornering, and so on. The fuel cap on the fuel tank is used to keep the fuel from splashing out, release the vacuum created by the fuel removing, and prevent vapors from escaping directly into the atmosphere.
fuel levels are measured by a fuel-metering unit. One style of the unit has a hinged float inside the tank. As the float position changes with different levels of fuel, the needle position on the dashboard g