Electronic Fuel Injection Overview 电控燃油喷射概述 进气系统 Air Induction System lectronic Control System 电控系统 燃油供给 系统 Fuel Delivery System
Electronic Fuel Injection Overview 燃油供给 系统 电控燃油喷射概述 进气系统 电控系统
The Electronic Fuel Injection system can be divided into three basic sub-systems the fuel delivery system,air induction system,and the electronic control system. 电控燃油喷射系统可分为三个基本子系统：燃油供给系 统，进气系统和电控系统
The Electronic Fuel Injection system can be divided into three basic sub-systems : the fuel delivery system, air induction system, and the electronic control system. 电控燃油喷射系统可分为三个基本子系统；燃油供给系 统，进气系统和电控系统
The Fuel Delivery System 燃油分配系统 喷油器 燃油压力 调节器 燃油滤清器 very Fipe Fuel Filter 燃油箱 回油管 供油管 Fuel Return Pipe Fuel Tank Fuel Pump 燃油泵
The Fuel Delivery System 燃油分配系统 喷油器 燃油压力 调节器 回油管 供油管 燃油滤清器 燃油箱 燃油泵
The fuel delivery system consists of the fuel tank, fuel pump,fuel filter,fuel delivery pipe (fuel rail),fuel injector,fuel pressure regulator,and fuel return pipe. Fuel is delivered from the tank to the injector by means of an electric fuel pump.The pump is typically located in or near the fuel tank.Contaminants are filtered out by a high capacity in line fuel filter. Fuel is maintained at a constant pressure by means of a fuel pressure regulator.Any fuel which is not delivered to the intake manifold by the injector is returned to the tank through a fuel return pipe
• The fuel delivery system consists of the fuel tank, fuel pump, fuel filter, fuel delivery pipe (fuel rail), fuel injector, fuel pressure regulator, and fuel return pipe. • Fuel is delivered from the tank to the injector by means of an electric fuel pump. The pump is typically located in or near the fuel tank. Contaminants are filtered out by a high capacity in line fuel filter. • Fuel is maintained at a constant pressure by means of a fuel pressure regulator. Any fuel which is not delivered to the intake manifold by the injector is returned to the tank through a fuel return pipe
1燃油供给系统包括燃油箱、燃油泵、燃油滤清器、供 油管、喷油器、燃油压力调节器和回油管。 2燃油被电动燃油泵从燃油箱输送到喷油器，典型的燃 油泵被固定在燃油箱里面或其附近。杂质由燃油管上串 接的高容量滤清器过滤。 3燃油压力调节器将燃油维持在恒定压力，没有被喷油 器喷射到进气歧管的燃油将通过回油管返回到燃油箱
1.燃油供给系统包括燃油箱、燃油泵、燃油滤清器、供 油管、喷油器、燃油压力调节器和回油管。 2.燃油被电动燃油泵从燃油箱输送到喷油器，典型的燃 油泵被固定在燃油箱里面或其附近。杂质由燃油管上串 接的高容量滤清器过滤。 3.燃油压力调节器将燃油维持在恒定压力，没有被喷油 器喷射到进气歧管的燃油将通过回油管返回到燃油箱
The Air Induction System 进气系统 空气流 节气门 量计 Throttle Valve Air Flow Meter 进气室 进气门 空气滤清器 Intake Valve Air Cleaner 进气歧管
The Air Induction System 进气系统 空气滤清器 空气流 量计 节气门 进气室 进气门 进气歧管
1.The air induction system consists of the air cleaner,air flow meter,throttle valve,air intake chamber,intake manifold runner,and intake valve. 2.When the throttle valve is opened,air flows through the air cleaner,through the air flow meter(on L type systems), past the throttle valve,and through a well tuned intake manifold runner to the intake valve. 3.Air delivered to the engine is a function of driver demand. As the throttle valve is opened further,more air is allowed to enter the engine cylinders
1. The air induction system consists of the air cleaner, air flow meter, throttle valve, air intake chamber, intake manifold runner, and intake valve. 2. When the throttle valve is opened, air flows through the air cleaner, through the air flow meter (on L type systems), past the throttle valve, and through a well tuned intake manifold runner to the intake valve. 3. Air delivered to the engine is a function of driver demand. As the throttle valve is opened further, more air is allowed to enter the engine cylinders
1进气系统包括空气滤清器、空气流量计、节气门、 进气室、进气歧管和进气门。 2当节气门被打开，空气流经空气滤清器、空气流量 计(L型)、节气门和一个完好设计的进气歧管最后 到达进气门。 3按照驾驶员的要求空气被输送到发动机，当节气门 进一步开大时，更多的空气将被允许进入发动机气缸
1.进气系统包括空气滤清器、空气流量计、节气门、 进气室、进气歧管和进气门。 2.当节气门被打开，空气流经空气滤清器、空气流量 计（L型）、节气门和一个完好设计的进气歧管最后 到达进气门。 3.按照驾驶员的要求空气被输送到发动机，当节气门 进一步开大时，更多的空气将被允许进入发动机气缸
Electronic Control System 电控系统 喷油器激发器 节气门角度 喷油器 2益 信号输入传 感器 废气中 冷却剂温 氧含量 流量 度 发动机转 速
Electronic Control System 电 控 系 统 喷油器 喷油器激发器 节气门角度 冷却剂温 度 空气 流量 废气中 氧含量 发动机转 速 信号输入传 感器
1.The electronic control system consists of various engine sensors,Electronic Control Unit(ECU),fuel injector assemblies,and related wiring. 2.The ECU determines precisely how much fuel needs to be delivered by the injector by monitoring the engine sensors. 3.The ECU turns the injectors on for a precise amount of time,referred to as injection pulse width or injection duration,to deliver the proper air/fuel ratio to the engine
1. The electronic control system consists of various engine sensors,Electronic Control Unit (ECU), fuel injector assemblies, and related wiring. 2. The ECU determines precisely how much fuel needs to be delivered by the injector by monitoring the engine sensors. 3. The ECU turns the injectors on for a precise amount of time, referred to as injection pulse width or injection duration, to deliver the proper air/fuel ratio to the engine