项目1-四冲程发动机构造与工作过程介绍-4学时.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2025/3/26 周三,汽车,实用英语,全国,交通运输职业教育教学指导委员会,马林才,刘大学,韩建保,“十二五”职业教育国家规划,教材,组织编写,主,编,副,主,编,主,审,2025/3/26 周三,四冲程发动机构造与工作过程介绍,发动机燃油供给系统认识,发动机冷却系统和润滑系统认识,汽车底盘构造认识,汽车电气设备和主动安全系统介绍,项目一,项目二,项目三,项目四,项目五,项目六,项目七,项目八,汽车车身电气设备和被动安全系统,介绍,车载网络系统与自动驾驶技术介绍,新能源汽车介绍,项目九,汽车性能参数及检测设备介绍,项目十,汽车故障诊断仪和数据流,项目十一,汽车使用说明书及维修资料,项目一,四,冲程发动机构造与工作过程,介绍,学习目标,学习时间,任务描述,引导问题,项目,内容,1,2,3,4,5,拓展材料,6,1,.,认识关于四冲程发动机构造、工作过程的英语术语和词汇；,2.,理解发动机中零部件及工作过程的固定表达方法；,3.,运用所学知识，借助专业词典，对发动机各总成资料进行中英文互译；,4.,在教师指导下，完成与发动机构造及工作过程相关的英语资料阅读,和翻译,；,5.,正确完成课后练习,。,学习目标,.,时间要求,:,建议,4,学时,学习时间,任务描述,以四冲程发动机为例，学习有关发动机构造及工作过程等知识，如,汽缸,体、汽缸盖、活塞、连杆、进气行程、压缩行程、做功行程及,排气行程等,，完成相关词汇、特殊语句的认识。通过完成该任务，能阅读关于,发动机,构造及工作过程的英文文献，并能运用所学项目知识和翻译技巧，,翻译,相关文献,。,引导问题,你知道下图中英文的意思吗,？,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,Components at the top of the engine,are:timing,belt,camshaft timing pulley,camshaft,rocker,arms and shafts,intake valves and springs,exhaust valves and springs,piston(shown,as Figure,1-1).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,Components at the front of the engine are:,piston,connecting,rod,crankshaft,crankshaft timing,pulley,timing,belt,crankshaft pulley and balancer(shown,as Figure,1-2).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,Components at the rear of the engine are:fl,ywheel,starter,ring gear,piston,，,connecting rod,crankshaft and,crankshaft fl anger(shown as Figure 1-3).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,Components at the bottom of,the engine,are:four pistons,connecting,rods,crankshaft balance weights,crankshaft,main-bearing journals,pulley,，,balancer,fl ywheel and,timing belt,(shown as Figure 1-4).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,The oil pan,or sump,is attached to the,bottom of,the crankcase and closes off the internal,parts (,shown as Figure 1-5).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,The large end of the connecting rod connects to the crankshaft and the,small end,connects to the piston(shown as Figure 1-6,).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,The most common engine is the,four-stroke piston,engine.These four strokes are intake,stroke,compression,stroke,power stroke and exhaust stroke,(shown as Figure 1-7).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,Engine manufacturers basically use three,distinct ways,to arrange the,cylinders in an engine:in-line,V-shape or opposed(shown as Figure 1-8).,项目内容,Project 1,Introduction to the Construction and,Operation of a Four-stroke,Engine,2.Translate the following words or phrases into Chinese.,1,）,intake stroke 2,）,timing gear 3,）,water pump,4,）,connecting rod 5,）,combustion chamber 6,）,crankpin,7,）,bottom dead centre 8,）,cylinder head 9,）,fan pulley,3.Translate the following words or phrases into English.,1,）汽缸,体,2,）齿,圈,3,）曲轴箱,4,）油底壳,5,）正时皮带,6,）活塞环,7,）点火分电器,8,）火花塞,9,）主轴承轴颈,Practical Reading,2ZZ-GE Engine,借助,专业词典，,对,2ZZ-GE,发动机资料,进行中英文互,译,。,拓展材料,拓展内容,拓展材料,The 2ZZ-GE engine is an in-line,4-cylinder,1.8-liter,16-valve DOHC engine(shown,asFigure,1-9,).,This engine meets the,EuropeanSTEP,regulations,.,The VVTL-i(Variable Valve Timing and,Liftintelligent)system,the DIS(Direct Ignition,System)and,an air injection system have been adopted,on this,engine in order to improve performance,fuel economy,and reduce exhaust emissions,.,请借助,专业词典,，翻译上述资料,拓展材料,请借助,专业词典,，翻译上述总成与零件,拓展材料,谢谢观看！,