山东交通学院chapter3 Fuel Injection System of the Gasoline Engine

1、chapter 3 Fuel Injection System of the Gasoline Engine,汽车服务工程专业英语,Basic words(1):,fuel tank 油箱,fuel filter 汽油滤清器,fuel pump 汽油泵,Carburetor (mix) 化油器,air filter 空气 滤清器,burn,Fuel tank,Fuel line,Fuel pump,Fuel filter,carburetor,air filter,Basic words():,needle valve 针阀,float chamber 浮子室,float 浮子,venturi

2、 喉管,discharge tube 喷管,throttle 节气门,jet量孔,First, because the fuel has to be injected progressively to allow time for it to be atomized and mixed thoroughly with the air before the spark occurs, it has to enter the cylinder against a rising back- pressure. 第一，因为燃料必须被逐渐的喷射，使得它有时间在火花产生之前雾化并与空气完全混合，它必须克服

3、正在升高的背压进入气缸。 allow for1.考虑到, 体谅2.允许有, 留出, 给予 We must allow for his inexperience. 我们必须考虑到他缺乏经验。 We must allow for his youth. 我们应当体谅他年轻。 Allow 15 per head for expenses. 允许每人开支为15英镑.,The essay isnt even remotely relevant to the topic. 这篇文章毫不切题. K-Jetronic系统也称机械式燃油喷射系统。在该系统工作的过程中，喷油量的多少决定于发动机进气系统的进气量，其控

4、制原理是根据过量空气系数传感器（氧传感器）的信号结合其它设备对混合气浓度进行闭环控制。,EFI = Electronic Fuel Injection 电控燃油喷射 SPI = Single Point Injection 单点喷射 MPI = Multi Point Injection 多点喷射 GDI = Gasoline Direct Injection 汽油缸内直喷,Gasoline direct injection (GDI) 汽油直接喷射 injector nozzles / fuel injector/ injector 喷油器 Carbon built-up 积炭 Combus

5、tion chamber 燃烧室 Swirl chamber 涡流燃烧室 induction system 进气系统 Single-point injection (SPI) 单点喷射 throttle body injection (TBI) 节气门体喷射 central fuel injection (CFI) 中央单点喷射 multi-point injection (MPI) 多点喷射 induction manifold 进气歧管 Injection Strategies 喷射策略 continuous injection 连续喷射,timed injection 定时喷射 sequ

6、ential injection 顺序喷射 phased injection 定相喷射 solenoid-actuated valve 电磁阀 detonation sensor 爆震传感器 crankshaft angle sensor 曲轴位置传感器,Review Questions,1、What are the main disadvantages of the gasoline direct injection? 2、What are the main differences between SPI and MPI? 3、Why do the manufacturer have the fuel to be directly injected at the hot inlet valve? 4、Please list t