专业英语-2汽车发动机

1、汽车实用英语,Automobile English,Task Two Automobile Engine,Objectives 1. To know about the importance and the types of the automobile engine; 2. To learn the basic structure and principle of the internal combustion engine; 3. To learn how a hybrid engine works.,1.According to fuel,BMW 6-cylinder gasoline

2、engine,JAGUAR diesel engine,Part Warm up Different types of engines (Classification),2.According to “Stroke”,Four-stroke Engine,Two-stroke Engine,Part Warm up Different types of engines (Classification),3.According to Cooling System,A cylinder from an air-cooled engine,Part Warm up Different types o

3、f engines (Classification),4.According to Cylinders,Single-cylinder,Multi-cylinder,Part Warm up Different types of engines (Classification),1,Inline,Part Warm up Different types of engines (Classification),-type,Part Warm up Different types of engines (Classification),Horizontally Opposed,Part Warm

4、up Different types of engines (Classification),Grasp the useful words and phrases news conference put it on the market,Part Listening and speaking,The internal combustion engine means that the engine burns fuel within the cylinders, and converts the heat energy of fuel combustion into mechanical for

5、ce used to propel the vehicle.,Part Reading Passage One Construction of Internal Combustion Engines,Part Reading Passage One Construction of Internal Combustion Engines,Part Reading Passage One Construction of Internal Combustion Engines,排量displacement,正时齿轮,气缸,轴承,油底壳,曲轴,连杆,活塞,气门,凸轮轴,Part Reading Pas

6、sage One Construction of Internal Combustion Engines,气缸盖罩,气缸体,气缸盖,气缸垫,Part Reading Passage One Construction of Internal Combustion Engines,Crankshaft and connecting rod assembly,气环,油环,正时齿轮,活塞,连杆,飞轮,曲轴,轴瓦,减震器和皮带轮,Part Reading Passage One Construction of Internal Combustion Engines,Valve and valve tra

7、in,正时皮带轮,凸轮轴,气门,活塞,连杆,曲轴,正时皮带轮,张紧轮,Part Reading Passage One Construction of Internal Combustion Engines,Starting system,Part Reading Passage One Construction of Internal Combustion Engines,Cooling system,Part Reading Passage Two How the Four-stroke Internal Combustion Engine Works, Operating princip

8、le: Intake Stroke,Exhaust vale closes,Intake valve opens,Piston moves downward,Air-fuel mixture is introduced into the cylinder,Exhaust valve closes,Intake valve closes,Piston moves upward,Air-fuel mixture is compressed, Operating principle: Compression Stroke,Exhaust valve opens near the bottom of

9、the stroke,Intake valve closes,Piston moves downward,Exhaust valve closes,Spark plug ignites the air-fuel mixture before the piston reaches TDC on the compression stroke., Operating principle: Power Stroke,Exhaust valve opens,Intake valve opens just before the end of exhaust stroke,Exhaust gases are

10、 pushed out of the cylinder,Piston moves upward,Intake valve closes, Operating principle: Exhaust Stroke,The _ which is called the “heart” of a vehicle is used to supply _ for an automobile. Power is produced by the linear motion of a piston in a _.,engine,power,cylinder,Part Reading Passage Two Exe

11、rcises,The _ engine means the engine burns the fuel within the cylinders. The function of _ is to help the engine run smoothly by absorbing some of the energy during power stroke and release it during the other strokes.,internal combustion,flywheel,Part Reading Passage Two Exercises,It is well-known

12、 that the automobile is composed of four sections such as_, _, _, _. The four piston strokes are _, _, _, _.,engine,chassis,body,electrical system,intake stroke,compression stroke,power stroke,exhaust stroke,Part Reading Passage Two Exercises,1.Intake manifold 2.Camshaft 3.Intake valve 4.Spark plug

13、5.Exhaust valve 6.Exhaust manifold 7.Cylinder head 8.Engine block 9.Combustion chamber 10.Piston 11.Connecting rod,Part Reading Passage Three Hybrid Engines,Hybrid Engines are described as engines that combine two or more sources of power, generally gasoline and electricity. There are two types of g

14、asoline-electric hybrid: the parallel hybrid, and the series hybrid. Both use gasoline-electric hybrid technology, but in radically different ways.,Part Reading Passage Three Hybrid Engines,Part Reading Passage Three Hybrid Engines,Part Reading Passage Three Hybrid Engines,本田混合动力电动汽车系统演示视频,混合动力汽车视频,

15、Engine oil has limited lifeafter a certain point it starts losing lubricating qualities and carbonizing. Once it happens, the engine gets contaminated with carbon deposits (sludge) that significantly shorten engines life.,Part Maintenance and repair How to check the engine oil,1. Regular oil change

16、is the most important factor in keeping the engine running. If you do it more often than suggested by the manufacturers schedule, thats even better. 2. Always preheat the engine before starting itespecially during break-in. 3. Try to avoid engine overheating,Part Maintenance and repair Engine mainte

17、nance tips,4. Changing spark plugs, air filter, timing belt, and other items based on the maintenance schedule will save you from expensive repairs. 5. Fix any small problem right away before it causes a serious damage.,Part Maintenance and repair Engine maintenance tips,机油选择 视频,更换机油 视频,Part Maintenance an