汽車專業(yè)英語

內(nèi)容概要

本教材課文內(nèi)容以汽車構(gòu)造為主線，主要講述汽車各個系統(tǒng)的構(gòu)造及工作原理，并選編了現(xiàn)代汽車方面的有關(guān)內(nèi)容，如電子噴射、制動防抱死、安全氣囊等。全書共17個單元，前14個單元由課文、詞匯、短語和句子注釋、練習(xí)和閱讀材料組成，后3個單元由課文、詞匯、短語和句子注釋、練習(xí)組成；有的課文和閱讀材料還配有附圖，針對課文和閱讀材料的重點(diǎn)難點(diǎn)都加注了語法分析和翻譯，在書后還附有汽車專業(yè)英語常用詞匯。

書籍目錄

Unit One Basic Components of an Automobile　Reading Material Layout of an AutomobileUnit Two Engine Operating Principles　Reading Material The History and Major Development of AutomobileUnit Three Engine Construction　Reading Material Troubles and Maintenance of EnginesUnit Four Fuel Supply System of Gasoline Engine　Reading Material Diesel Engine Fuel System Unit Five Carburettor and Electric Fuel Pump　Reading Material Electronic Fuel InjectionUnit Six Engine Lubrication and Cooling　Reading Material Lubrication System ComponentsUnit Seven Engine Ignition System　Reading Material Electronic Ignition SystemUnit Eight Engine Starting System　Reading Material Starting MotorUnit Nine Automotive Chassis　Reading Material Types of Chassis FramesUnit Ten Power Train　Reading Material Automobile TransmissionUnit Eleven Suspension System　Reading Material Independent SuspensionUnit Twelve Brake System　Reading Material Antilock Brake SystemsUnit Thirteen Steering System　Reading Material Types of Steering GearsUnit Fourteen Instrument Cluster　Reading Material SRS AirbagUnit Fifteen Automotive Air-Conditioning SystemUnit Sixteem Power Door Locks and Power WindowsUnit Seventeen How Car Computers work附錄一 汽車常用縮略語英漢對照附錄二 汽車電器與電子設(shè)備名詞術(shù)語漢、英對照

章節(jié)摘錄

　　Front axle is used for steering front wheels carried on stub axles swiveling upon king pins at the axle extremities.　　Steering arms and a track rod link the two stub axles together for swivelling them by a steering wheel about the king pins.The steering wheel linked to one of the stub axles by a shaft，a gear box and a suitable linkage is operated by the driver’S hand wheel. Previously the axle——a one-piece beam was used to support the vehicle through springs. An arrangement known as independent front suspension has replaced the axle and spring arrangement. Under the control of springs，the wheels are free to rise and fall vertically independently of each other.　　For fixing rear wheels，a tube like shaft enclosing driving shafts with suitable bearings for rotating the wheels is used. It is enlarged at the center for enclosing the：final drive gears used for providing main speed reduction between the engine and the driving wheels. The change of direction of the、drive from the fore and aft line of the propeller shaft to the transverse line of the axle shafts is also provided by this tube known as rear axle.　　When going round a curve，the inner wheel has to travel a smaller distance in comparison to the outer wheel. But both the rear wheels would rotate at the same speed if they are connected by a shaft. This rotation of both the wheels would result in slipping of one or both of them on the road surface causing excessive tire wear as well as severe twisting loads on the shaft. Moreover，the two wheels of the exactly similar diameter （which is not usually SO）can only turn at the same speed without slip on the straight roadsters fitted on the opposite sides may be of different states of wear and even tyre of same nominal diameter made by different or same manufacturer may differ in actual dimensions or may not be exactly similar. Due to change of rolling radius（the distance from the wheel center to the ground），the effective size of the tyre may be altered by different inflation pressure also.　　Each wheel is provided with its own separate half shaft connected by a differential gear and meeting at about the center of the axle. The wheels are free to rotate at different speeds though they are provided with equal drive by the differential gear.　　For preventing the transmission of shock from uneven road surfaces to the vehicle， springs are used to support the vehicle on the axle.

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