ENGLISH FOR AUTOMOBILE ENGINEERING-UNIT 8

The automobile industry is a fast developing industry. From the later 18th century, when the first automobile was put on road, this industry has developed tremendously. Now there are thousands of factories all over the world manufacturing numerous type of automobile. The automobile engines are also being used in engine powered machines for agriculture, construction and manufacturing processes. Various types of small engines are also being used in lawn movers, power saws, snow removers and similar equipments. The automobile industry is a developing and demanding industry which does not find its end or saturation point. There is a great demand for varied types of automobile products, vehicles and engines....
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ENGLISH FOR AUTOMOBILE ENGINEERING-UNIT 8 SUBJECTS ENGLISH FOR AUTOMOBLE ENGINEERING LECTURER: LANG VAN THANG FACUTY OF MECHANICAL ENGINEERING HO CHI MINH UNIVERSITY OF INDUSTRY EMAIL: thang.langvan@hotmail.com HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING ENGLISH FOR AUTOMOBILE ENGINEERING UNIT 8 www.fme.edu.vn HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING INTRODUCTION The automobile industry is a fast developing industry. From the later 18th century, when the first automobile was put on road, this industry has developed tremendously. Now there are thousands of factories all over the world manufacturing numerous type of automobile. The automobile engines are also being used in engine powered machines for agriculture, construction and manufacturing processes. Various types of small engines are also being used in lawn movers, power saws, snow removers and similar equipments. The automobile industry is a developing and demanding industry which does not find its end or saturation point. There is a great demand for varied types of automobile products, vehicles and engines. HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING INTRODUCTION There is also a great demand for trained and experienced person in this industry for diagnosing motor vehicle troubles, repairing and replacing engines, components, transmissions, propeller shafts, differentials, axles, steering system components, brake system components, air-conditioners, heater, body and glass work. The automobile is a self – propelled, wheeled, steerable vehicle used for transporting people and small cargoes on land. Automobiles are classified by number of drive wheels and axles, capacity, sizes, styles, number of doors, and intended use. HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING INTRODUCTION All passenger cars, trucks, and buses have certain things in common: a power plant or engine; a chassis, which consists of the frame, drive-train, suspension, and steering, and includes the wheels and brakes; the power train, which transmits and distributes power from the engine to the car’s driving wheels, and a body, which provides some protection for driver and passengers and gives the vehicle shape and identity. HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING ENGINE Throughout the world, many different types of engines have been used in automobile. Today, generally, they are internal- combustion engines that burn gasoline or diesel fuel. Most passenger car engines run on gasoline, are liquid- cooled, and are of four- stroke, overhead- valve, reciprocating type, with carburetor or fuel injection. Almost all automobiles use reciprocating engines, in which pistons move up and down inside tubular cylinders. The pistons are connected, by means of an articulated connecting rod, to a spinning crankshaft, which converts their back- and –forth movement to circular motion. Some vehicles have Wankel engines, which contain triangular rotating pistons that rotate inside combustion chambers. HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING ENGINE The diesel engine, which burns fuel oil, is more common in large trucks and buses. Diesel engines do not use spark plug ignition systems. Instead, they spray fuel into the cylinders, where it is ignited spontaneously by the heat of compression. Gasoline Engine HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING ENGINE Gasoline Engine HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING CHASSIS An automobile chassis includes the car’s frame, power train, suspension, wheels, steering, and brake systems. Earlier cars had full, ladder- type frames on which the body was mounted in separate pieces. Modern cars are made from a welded steel uni-body that combines the function of the frame with the central cabin of the body. The sub-frame, front or rear, is a small steel brace that supports the engine or suspension and is welded to the car’s uni-body structure. The automobile’s wheels are attached to the chassis by a suspension system consisting of control arms, springs, and shock absorbers. Spring may be any of three types: coil, leaf, or torsion bar. Shock absorbers damp vertical wheel movement and restrict the pitch and roll of the car’s chassis while it is in motion. HOCHIMINH UNIVERSITY OF INDUSTRY FACUTY OF MECHANICAL ENGINERRING CHASSIS The steering system normally controls the angle of the front wheels relative ...