PROFESSIONAL ENGLISH UNIT 3 FUEL INJECTION SYSTEMS TEXTA Electronic Fuel Injection Systems
UNIT 3 FUEL INJECTION SYSTEMS TEXT A Electronic Fuel Injection Systems PROFESSIONAL ENGLISH
本次课学习内容 UNIT 3 FUEL INJECTION SYSTEMS TEXTA Electronic Fuel Injection Systems Pulse fuel Injection Pulse Fuel Injection System Components Air induction system Fuel delivery system Engine control computer ●E| ectronic sensors Continuous Injection Systems(CIS)
UNIT 3 FUEL INJECTION SYSTEMS TEXT A Electronic Fuel Injection Systems • Pulse Fuel Injection • Pulse Fuel Injection System Components • Air induction system • Fuel delivery system • Engine control computer • Electronic Sensors • Continuous Injection Systems (CIS) 本次课学习内容
本次课学习目标 ●掌握电控燃油喷射系统主要部件的英文名 称、主要部件的作用及工作原理 ●掌握常用术语( phrases and expressIons 了解相关术语( related terms) ●提高翻译能力
本次课学习目标 ⚫ 掌握电控燃油喷射系统主要部件的英文名 称、主要部件的作用及工作原理 ⚫ 掌握常用术语（phrases and expressions） ⚫ 了解相关术语（related terms） ⚫ 提高翻译能力
NEW WORDS manifold r'maenifould]n.歧管 manipulate[ma' nipjuleit]v.操纵,控制,支配 venturi [ventu: r]n文丘里管,喉管 driveability[ draive" biliti] n.运行性能,操纵性能 lag[ aeg] n滞后,迟后,惯性,惰性 turbocharger [te:bout∫a:]n.涡轮增压器,增压器 compressor [kam'presi]n压气机,压缩机,压缩装置 sensor[sens司]n传感器 passageway[ paesiaswei]n通路 psi(= pound per square inch)磅力/平方英寸(bfin2) injector[in' delta]n喷油器,注射器
NEW WORDS manifold ['mænifould] n.歧管 manipulate [mə'nipjuleit] v.操纵，控制，支配 venturi [ven'tu:ri] n.文丘里管，喉管 driveability [draivə'biliti] n.运行性能，操纵性能 lag [læg] n.滞后，迟后，惯性，惰性 turbocharger ['tə:bout∫ɑ:ʤə] n.涡轮增压器，增压器 compressor [kəm'presə] n.压气机，压缩机，压缩装置 sensor ['sensə] n.传感器 passageway ['pæsiʤwei] n.通路 psi ( = pound per square inch ) 磅力/平方英寸（lbf/in2） injector [in'ʤektə] n.喷油器，注射器
circuit['sa:ki]n电(气,油,回)路 complexity [kem' pleksiti] n复杂性 plug[plAg]n塞子,堵头,插头 energize renadaiz]v通电,励磁 distributor [di'stribjuta]n分配器,分电器 throttle [roti]n节气门 relay tailei,'ri:"len.继电器,转播;w中继,转播 barometric[ baerou'metrik]n大气压力的 vortex [va:teks]n涡流,涡旋,旋风 distinctly[dis" tink]ad显然,清楚地,明明 spawn[sp:nv产卵
circuit ['sə:kit] n.电（气，油，回）路 complexity [kəm'pleksiti] n.复杂性 plug [plʌg] n.塞子，堵头，插头 energize ['enəʤaiz] v.通电，励磁 distributor [di'stribjutə] n.分配器，分电器 throttle ['θrɔtl] n.节气门 relay ['rilei, 'ri:'lei] n.继电器，转播；v.中继，转播 barometric [bærou'metrik] n.大气压力的 vortex ['vɔ:teks] n.涡流，涡旋，旋风 distinctly [dis'tiŋktli] ad.显然，清楚地，明明 spawn [spɔ:n] v.产卵
PHRASES AND EXPRESSIONS pulse fuel injection脉冲燃油喷射 continuous fuel injection连续燃油喷射 throttle body injection节气门体喷射 single- point injection单点喷射 central fuel injection中央喷射 muti- point systems多点喷射 muti- port injection多点喷射 tuned intake runners调谐进气管 intake manifold进气歧管 air induction system进气系统
pulse fuel injection 脉冲燃油喷射 continuous fuel injection 连续燃油喷射 throttle body injection 节气门体喷射 single-point injection 单点喷射 central fuel injection 中央喷射 multi-point systems 多点喷射 multi-port injection 多点喷射 tuned intake runners 调谐进气管 intake manifold 进气歧管 air induction system 进气系统 PHRASES AND EXPRESSIONS
fuel delivery system供油系统 air cleaner空气滤清器 electric fuel pump电动燃油泵 pressure regulator压力调节器 fuel inlet line进油管 fuel tank燃油箱 fuel injector喷油器 fuel rail燃油分配管,油轨 ignition co点火线圈 Hal| effect switch霍尔效应开关 barometric pressure大气压力
fuel delivery system 供油系统 air cleaner 空气滤清器 electric fuel pump 电动燃油泵 pressure regulator 压力调节器 fuel inlet line 进油管 fuel tank 燃油箱 fuel injector 喷油器 fuel rail 燃油分配管，油轨 ignition coil 点火线圈 Hall-effect switch 霍尔效应开关 barometric pressure 大气压力
heated wire热线式 air valve空气阀式(= vane type叶片式) Karmann vortex卡曼涡旋式
heated wire热线式 air valve空气阀式（=vane type叶片式） Karmann vortex 卡曼涡旋式
Electronic Fuel Injection Fuel injection systems deliver fuel by forcing it into the incoming air stream(Fig 3-1). Fuel injection systems actually measure the incoming air and pressurize the fuel to deliver it in precise amounts based directly on that measurement Because fuel is delivered to the manifold under pressure, the quantity of fuel delivered can be more positively controlled. With this more positive control, fuel delivery can be more easily manipulated to meet the unique demands of extreme operating conditions. This results in greater efficiency over a wider range of operation
Electronic Fuel Injection Fuel injection systems deliver fuel by forcing it into the incoming air stream（Fig.3-1）. Fuel injection systems actually measure the incoming air and pressurize the fuel to deliver it in precise amounts based directly on that measurement. Because fuel is delivered to the manifold under pressure, the quantity of fuel delivered can be more positively controlled. With this more positive control, fuel delivery can be more easily manipulated to meet the unique demands of extreme operating conditions. This results in greater efficiency over a wider range of operation
In the electronic injection system the air-fuel mixture is controlled in one of two ways. The injector may be opened and closed by electrical signals. This is a pulse fuel injection system In the other type of system the injector is forced open by fuel pressure. Fuel pressure is controlled by an electronic control device, or by an airflow metering valve depending on the system This is the continuous fuel injection system
In the electronic injection system, the air-fuel mixture is controlled in one of two ways. The injector may be opened and closed by electrical signals. This is a pulse fuel injection system. In the other type of system, the injector is forced open by fuel pressure. Fuel pressure is controlled by an electronic control device, or by an airflow metering valve, depending on the system. This is the continuous fuel injection system