Unit 1 The Reciprocating Piston Petrol Engine 1.1 Modern requirements 1.1.1 Optimum performance 1.1.2 Good fuel economy 1.1.3 Less pollution 1.1.4 Minimum noise level 1.1.5 Easy cold starting 1.1.6 Economic servicing 1.1.7 Acceptable durability 1.1.8 Least weight 1.1.9 Compact size 1.1.10 Economic manufacture 1.2 Engine nomenclature 1.2.1 TDC and BDC 1.2.2 Piston stroke 1.2.3 Piston displacement 1.2.4 Engine capacity 1.2.5 Mean effective pressure 1.2.6 Indicated and brake power 1.2.7 Engine torque 1.2.8 Compression ratio 1.3 Operating principles of four-stroke petrol engine New words and expressions Notes to the text Unit 2 Combustion Chambers and Processes 2.1 Combustion in the petrol engine 2.1.1 Basic considerations 2.1.2 Normal and abnormal bustion 2.2 Petrol engine bustion chambers 2.2.1 Hemispherical chamber 2.2.2 Wedge chamber 2.2.3 Bowl-in-piston chamber 2.3 Combustion in the diesel engine 2.4 Diesel engine bustion chambers 2.4.1 Basic consideration 2.4.2 Advantages and disadvantages of direct-injection 2.5 Cylinder charge agitation 2.5.1 Basic requirements 2.5.2 Compression turbulence 2.5.3 Induction swirl New words and expressions Notes to the text Unit 3 Cylinder Assemblies and Piston ?Crank Mechanism 3.1 Cylinder and crankthrow arrangements 3.1.1 Considerations in cylinder design 3.1.2 Arrangement of engine cylinders 3.1.3 Crankthrow arrangements 3.2 Cylinder block, crankcase and head 3.2.1 Cylinder block construction 3.2.2 Cylinder bores 3.2.3 Crankcase construction 3.2.4 Cylinder head construction 3.2.5 Cylinder head gasket 3.2.6 Cylinder liners 3.3 Pistons and connecting rods 3.3.1 Piston construction and nomenclature 3.3.2 Piston materials and expansion control 3.3.3 Gudgeon pins and their location 3.3.4 Types of piston ring and nomenclature 3.3.5 Piston ring materials and expansion control 3.3.6 Connecting rods 3.3.7 Big-end bearing and nomenclature 3.4 Crankshaft assembly and main bearings 3.4.1 Crankshaft construction and nomenclature 3.4.2 Flywheel with torsional vibration ?damper 3.4.3 Crankshaft timing wheel and pulley 3.4.4 Crankshaft main bearings and nomenclature 3.5 Crankshaft torsional vibration ?dampers 3.5.1 The causes of crankshaft vibration 3.5.2 Methods of mounting torsional vibration dampers 3.6 Valve train 3.6.1 Side camshaft, push-rods and rockers 3.6.2 Identifying the parts of a cam profile 3.6.3 Hydraulic tappets 3.6.4 Engine valves 3.6.5 Valve springs …… 附录A 混合动力汽车(释译) 参考文献