ENGINE MECHANICAL 车辆工程专业英语教学PPT课件 (2).pptx

 UNIT 2 ENGINE MECHANICAL TEXT A Operation, Main Components and Classification of the Engine  ? Principle of Operation  ? Main Engine Components  ? Engine Classification;本次课学习目标;NEW WORDS;foundation [faundei∫?n ]n.基础，基地，基金，机座 camshaft [k?m∫ɑ:ft]n.凸轮轴 accessory [?kses?ri]n.附属品，附件，辅助装置 clutch [kl?t∫]n.离合器 housing [hauzi?] n.外壳 bolt [boult] n.螺栓；v.用螺栓连接 core [k?:] n.芯，核心，铁心，型芯，沙芯，（电缆）芯线 aluminum [?lju:min?m]n.铝 liner [lain?]n.衬套，衬里，衬板 oversize [ouv?saiz]n. a.加大尺寸 heavy-duty [hevidju:ti]a.重型的，重载的;oscillate [?sileit]v.振荡，振动，波动，动摇 bearing [b??ri?]n.轴承 journal[??:n?l]n.轴颈 throw [?rou]n. v.投掷，扔；n.投掷距离，偏心距离，摆幅；（pl.）曲柄 attach [?t?t∫]v.附着，连接，固定（to） reciprocating [risipr?keiti?]a.往复的 mount [mɑunt]v.安装，固定；n.安装件，支架，机座 rim [rim]n.边缘，轮缘，轮辋，齿圈 heat-resistant [hi:t-rizist?nt ]a.耐热的 clearance [kli?r?ns]n.间隙 lifter [lift?]n.挺杆;harden [hɑ:d?n]v.硬化，变硬，淬硬 revolution [rev?lu:∫?n]n.转，回转，大变革 inline [inlain]a.直列式的，在一条直线上的 bank [b??k]n.（气缸）列，排，银行 rigidity [ri?iditi]n.刚性 profile [proufail]n.外形，轮廓 conducive [k?ndju:siv]a.有助于…的，促进…的（to） sacrifice [s?krifais]n.牺牲（品），损失 liquefy [likwifai]v.液化 propane [proupein]n.丙烷 carburetion [kɑ:bjure∫?n]n.汽化 carburetor [kɑ:bjuret?]n.化油器;internal combustion engine 内燃机 four-stroke cycle 四冲程循环 spark plug 火花塞 intake stroke 进气行程 power stroke 作功行程 compression stroke 压缩行程 exhaust stroke 排气行程 connecting rod 连杆 automatic transmission 自动变速器 torque converter 液力变矩器;insert bearing 镶入式轴承 valve seat 气门座 valve guide 气门导管 valve train 气门机构，气门组 hydraulic valve lifter 液力挺杆 ;TEXT A Operation, Main Components and Classification of the Engine The automotive engine is essentially a heat engine. The heat engines used in automobiles are internal combustion engines. 1. Principle of Operation The spark-ignition engine is an internal-combustion engine with externally supplied in ignition. The gasoline engine is a kind of spark-ignition engines. The four-stroke-cycle gasoline engine cycle is spread over four piston st