Economic History of Tractors in the United StatesThe farm tractor is one of the most important and easily recognizable technological components of modern agriculture in the United States. Its development in the first half of the twentieth century fundamentally changed the nature of farm work, significantly altered the structure of rural America, and freed up millions of workers to be absorbed into the rapidly growing manufacturing and service sectors of the country. The tractor represents an important application of the internal combustion engine, rivaling the automobile and the truck in its economic impact. A tractor is basically a machine that provides machine power for performing agricultural tasks. Tractors can be used to pull a variety of farm implements for plowing, planting, cultivating, fertilizing, and harvesting crops, and can also be used for hauling materials and personal transportation.
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How Car Engines Work
Internal Combustion Engine ICE a type of a machine that obtains mechanical energy directly from the expenditure of chemical energy of fuel burned in a combustion chamber. Diesel Engine an internal combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected directly into the cylinder where combustion and expansion or gases actuate a piston. Cylinder Head the part of a diesel engine that seals the other end of the cylinder. Liner that part of an engine that consists of a cylinder that is closed at one end and in which a close fitting piston slides to and fro. Piston an engine part that slides in a reciprocating motion inside the cylinder liner and actuated by the power of expanding gases of combustion. It is said to be the heart of an engine.
Tractor parts and its function
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The core of the engine is the cylinder, with the piston moving up and down inside the cylinder. Single cylinder engines are typical of most lawn mowers, but usually cars have more than one cylinder four, six and eight cylinders are common. In a multi-cylinder engine, the cylinders usually are arranged in one of three ways: inline , V or flat also known as horizontally opposed or boxer , as shown in the figures to the left. So that inline four we mentioned at the beginning is an engine with four cylinders arranged in a line. Different configurations have different advantages and disadvantages in terms of smoothness, manufacturing cost and shape characteristics. These advantages and disadvantages make them more suitable for certain vehicles.