Manufacturing Engineering

what is an engine block

Engine cylinders, when cast in a single housing, are known as the engine block. Usually, the engine block is manufactured from cast iron or aluminium alloy. In the latter case, cast iron or steel liners form the cylinder bore. The engine block forms the major component of a ‘short’ motor. The cylinder bores are formed […]

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engine terminology

The following are some of the technical terms that are used to describe features of the engine: Engine capacity – the total, combined, displaced volume of all engine cylinders as a single value stated in units of cubic capacity. This is generallygiven in cubic centimetres (cm3) or litres. In America, engine capacity is normally stated

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spark ignition engine

During compression of the fuel/air mixture in a petrol engine, heat energy and kinetic energy (due to gas movement) are imparted into the mixture owing to the reducing volume and rising pressure. This creates a signifi cant temperature increase and the magnitude of this increase depends upon the speed of the compression process and the

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aircraft horizontal stabilizer

The horizontal stabilizer is quite simply an upside-down wing, designed to provide a downward force (push) on the tail. Airplanes are traditionally nose-heavy and this downward force is required to compensate for that, keeping the nose level with the rest of the aircraft. Some aircraft can control the angle of the stabilizer and therefore the

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what is jet engine

An airplane has at least one, or as many as eight engines, which provide the thrust needed to fly. There are many different makes and models on aircraft today but all perform the same basic function of taking the air that’s in front of the aircraft, accelerating it and pushing out behind the aircraft. Jet

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aileron meaning

The ailerons are located at the rear of the wing, typically one on each side. They work opposite to each other, meaning that when one is raised, the other is lowered. Their job is to increase the lift on one wing while reducing the lift on the other. By doing this, they roll the aircraft

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what is positive displacement pump

Centrifugal and positive-displacement pumps share some basic design requirements. Both require an adequate, constant suction volume to deliver designed fluid volumes and liquid pressures to their installed systems. In addition, both are affected by variations in the liquid’s physical properties (e.g., specific gravity, viscosity, etc.) and flow characteristics through the pump. Unlike centrifugal pumps, positive-displacement

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ackermann steering geometry

Caster angle θ indicates kingpinpivot line and gray area indicates vehicle’s tire with the wheel moving from right to left. A positive caster angle aids in directional stability, as the wheel tends to trail, but a large angle makes steering more difficult. Curves described by the rear wheels of a conventional automobile. While the vehicle

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sliding mesh gearbox

It is the simplest gear box. The following figure shows 4-speed gear box in neutral position. 4 gears are connected to the lay shaft/counter shaft. A reverse idler gear is mounted on another shaft and always remains connected to the reverse gear of countershaft. This “H” shift pattern enables the driver to select four different

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single plate clutch

It is the most common type of clutch plate used in motor vehicles. Basically it consists of only one clutch plate, mounted on the splines of the clutch plate. The flywheel is mounted on engine crankshaft and rotates with it. The pressure plate is bolted to the flywheel through clutch springs, and is free to

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