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POWER SYSTEM Engine Engine Types Fuel Supply Exhaust System Cooling and Heating System DRIVETRAIN Transmission Front- and Rear-Wheel Drive Suspension System Wheels and Tires Steering Brakes ELECTRICAL SYSTEM Ignition System SAFETY FEATURES CARS HISTORY Automobiles Through the Years Internal-Combustion Engine Early Electric Cars AUTOMOBILES IN THE 20TH CENTURY

New Cars Technology
TRUCK:

TRUCKS LIGHT TRUCKS MEDIUM TRUCKS HEAVY TRUCKS TRAILERS TRUCKING OPERATIONS AND REGULATIONS HISTORY
PUBLIC TRANSPORTATION:

TYPES OF PUBLIC TRANSPORTATION Buses Paratransit Streetcars Light-Rail Transit Heavy-Rail Transit Commuter Rail Transit Automated Guided Transit Ferries DEVELOPMENT OF PUBLIC TRANSPORTATION IN THE UNITED STATES HISTORY
AUTOMOBILE INDUSTRY:

ECONOMIC IMPORTANCE Domestic Impact Foreign Trade HOW CARS ARE BUILT Research, Design, and Development Manufacturing and Assembly Sales and Service Customer Feedback HISTORY OF THE AUTOMOBILE INDUSTRY Early Automobile Concepts Henry Ford and Mass Production Other Automakers The Great Depression of the 1930s Labor Unions and Strikes Wartime Production Postwar Production Automobile Safety Foreign Imports and the Energy Crisis The 1980s and 1990s FUTURE AUTOMOBILE INDUSTRY TRENDS Computerization Alternative Fuel Research Materials and Safety
ROAD:

TYPES OF ROADS Highways Urban Streets Rural Roads ROADWAY ENGINEERING Roadbed Base Course Wearing Course Bituminous Pavement Concrete Pavement ROAD PLANNING AND ADMINISTRATION HISTORY OF ROAD CONSTRUCTION

History cars information



Cooling and Heating System for Automobiles


 Combustion inside an engine produces temperatures high enough to melt cast iron. A cooling system conducts this heat away from the engine’s cylinders and radiates it into the air.

 In most automobiles, a liquid coolant circulates through the engine. A pump sends the coolant from the engine to a radiator, which transfers heat from the coolant to the air. In early engines, the coolant was water. In most automobiles today, the coolant is a chemical solution called antifreeze that has a higher boiling point and lower freezing point than water, making it effective in temperature extremes. Some engines are air cooled, that is, they are designed so a flow of air can reach metal fins that conduct heat away from the cylinders.

 A second, smaller radiator is fitted to all modern cars. This unit uses engine heat to warm the interior of the passenger compartment and supply heat to the windshield defroster.

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