PROFESSIONAL ENGLISH UNIT 2 ENGINE MECHANICAL TEXTA Operation Main Components and classification of the Engine
UNIT 2 ENGINE MECHANICAL TEXT A Operation, Main Components and Classification of the Engine PROFESSIONAL ENGLISH
本次课学习内容 UNIT 2 ENGINE MECHANICAL TEXTA Operation, Main components and classification of the Engine Principle of operation Main Engine Components Engine Classification
UNIT 2 ENGINE MECHANICAL TEXT A Operation, Main Components and Classification of the Engine • Principle of Operation • Main Engine Components • Engine Classification 本次课学习内容
本次课学习目标 ●掌握发动机主要部件的英文名称 ●掌握各中发动机的英文名称 ●掌握常用术语( phrases and expressIons ●了解相关术语( related terms) ●较熟练翻译与发动机工作原理相关的英文 文章
本次课学习目标 ⚫ 掌握发动机主要部件的英文名称 ⚫ 掌握各中发动机的英文名称 ⚫ 掌握常用术语（phrases and expressions） ⚫ 了解相关术语（related terms） ⚫ 较熟练翻译与发动机工作原理相关的英文 文章
NEW WORDS combustion [kem"bAs∫on]n燃烧 stroke[ stroud]n冲程 piston[ pisten] n活塞 cylinder [silinda]n气缸 valve [vaelv]n气门,阀门,阀 exhaust [igz3:st]n排气,废气 intake [inteik]n进气,进(引,吸)入 compression[kem' preen]n压缩 crankshaft [ kraenk∫afn曲轴 swirl [sw:l]n漩涡,涡流,紊流;v涡动 churn [te:njv搅拌,搅动
NEW WORDS combustion [kəm'bʌs∫ən] n.燃烧 stroke [strouk ] n.冲程 piston ['pistən] n.活塞 cylinder ['silində] n.气缸 valve [vælv ]n.气门，阀门，阀 exhaust [ig'zɔ:st ]n.排气，废气 intake ['inteik ]n.进气，进（引，吸）入 compression [kəm'pre∫ən ]n.压缩 crankshaft ['kræŋk∫ɑ:ft]n.曲轴 swirl [swə:l ]n.漩涡，涡流，紊流；v.涡动 churn [t∫ə:n ]v.搅拌，搅动
foundation [faun'deij∫an]n基础,基地,基金,机座 camshaft [kaem∫a:ftn凸轮轴 accessory[ aek'seseri]n.附属品,附件,辅助装置 clutch [klAtEn离合器 housing[ tauzin]n外壳 bolt[boun螺栓;v用螺栓连接 core[k3:]n芯,核心,铁心,型芯,沙芯,(电缆)芯 线 aluminum ['olju: minam]n fa liner [lain]n衬套,衬里,衬板 oversize rouvesaiz]n&a加大尺寸 heavy-duty[ hevi'dju:tija重型的,重载的
foundation [faun'dei∫ən ]n.基础，基地，基金，机座 camshaft ['kæm∫ɑ:ft]n.凸轮轴 accessory [æk'sesəri]n.附属品，附件，辅助装置 clutch [klʌt∫]n.离合器 housing ['hauziŋ] n.外壳 bolt [boult] n.螺栓；v.用螺栓连接 core [kɔ:] n.芯，核心，铁心，型芯，沙芯，（电缆）芯 线 aluminum ['əlju:minəm]n.铝 liner ['lainə]n.衬套，衬里，衬板 oversize ['ouvəsaiz]n.& a.加大尺寸 heavy-duty ['hevi'dju:ti]a.重型的，重载的
oscillate [osileitv振荡,振动,波动,动摇 bearing" serin]n轴承 journal[d3a: ne]n轴颈 throw [Orou]n&v投掷,扔;n.投掷距离,偏心距离,摆 幅;(pl.)曲柄 attach[ etat∫附着,连接,固定(to) reciprocating [ri'siprakeitin]a往复的 mount[ mount]v安装,固定;n安装件,支架,机座 rim [rimin边缘,轮缘,轮辋,齿圈 heat-resistant [hi: t-ri'zistent]a耐热的 clearance [kierans]n间隙 lifter ['lifte]n挺杆
oscillate ['ɔsileit]v.振荡，振动，波动，动摇 bearing ['bəriŋ]n.轴承 journal['ʤə:nəl]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 [ə'tæt∫]v.附着，连接，固定（to） reciprocating [ri'siprəkeitiŋ]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-ri'zistənt ]a.耐热的 clearance ['kliərəns]n.间隙 lifter ['liftə]n.挺杆
harden I"ha:den]v硬化,变硬,淬硬 revolution[ reve'lu:∫an]n转,回转,大变革 inline"in"aina直列式的,在一条直线上的 bank[ baek]n.(气缸)列,排,银行 rigidity[ri' fiditi]n刚性 profile [ proufailn.外形,轮廓 conducive[ kan'dju:siva有助于…的,促进…的(to) sacrifice [saekrifais]n牺牲(品),损失 quey[ likwifailv液化 propane ['proupein]n丙烷 carburetion[ ka: bju'reen]n汽化 carburetor [ka: bju'reta]n化油器
harden ['hɑ:dən]v.硬化，变硬，淬硬 revolution [revə'lu:∫ən]n.转，回转，大变革 inline ['in'lain]a.直列式的，在一条直线上的 bank [bæŋk]n.（气缸）列，排，银行 rigidity [ri'ʤiditi]n.刚性 profile ['proufail]n.外形，轮廓 conducive [kən'dju:siv]a.有助于…的，促进…的（to） sacrifice ['sækrifais]n.牺牲（品），损失 liquefy ['likwifai]v.液化 propane ['proupein]n.丙烷 carburetion [kɑ:bju're∫ən]n.汽化 carburetor [kɑ:bju'retə]n.化油器
PHRASES AND EXPRESSIONS 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
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 PHRASES AND EXPRESSIONS
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
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 strokes. The operation strokes are(figure2-1)
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 strokes. The operation strokes are (figure2-1):