Engine

Accessory drive

Accessory drive

Function The accessory drive is responsible for driving ancillary components such as the alternator, the power steering pump, the water pump or the air conditioning compressor. V-belts or a V-ribbed belts are used to...

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Petrol direct injection

Petrol direct injection

Petrol direct injection is a term used to describe a method of fuel injection for petrol and diesel engines. The process involves injecting fuel directly into the combustion chamber.

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Overrunning belt pulleys

Overrunning belt pulleys

Function unlike electric motors, combustion engines exhibit non-uniform rotation. The four-stroke principle dictates that the crankshaft is continuously accelerated and decelerated the accessory drive...

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Plain bearings

Plain bearings

Function Plain bearings support and guide moving components inside the engine. Their primary purpose is to facilitate the virtually wear-free rotation of these components. Plain bearings comprise one...

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Glow time relays

Glow time relays

Diesel engines are compression-ignition engines. This means that an additional heat source is not needed to ignite the mixture in the cylinder. In the cylinder, the air/diesel mixture is highly compressed...

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Hybrid drive

Hybrid drive

The hybrid drive combines the combustion engine with an electric motor. Readiness for start of production of the first vehicles with hybrid drive is the result of the perfect combination of the very latest technologies...

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V-belts

V-belts

The V-belt acts as a transmission belt. Connecting the V-belt pulleys, it transmits the force from the engine to the ancillary components including the alternator, the hydraulic pump for the power steering...

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V-ribbed belts

V-ribbed belts

The V-ribbed belt is a further development of the V-belt and works according to the same principle: It acts as a transmission belt, connects the V-belt pulleys and transmits the force from...

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Chain drive

Chain drive

The chain drive in combustion engines must transmit the rotation of the crankshaft to the camshafts, thus ensuring that the valves open and close reliably and at exactly the right time. A chain is used as...

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Pistons

Pistons

During the operating cycle of a combustion engine, the energy bound in the fuel is converted into heat and pressure in the cylinder in a very short space of time. This process is explosive in nature. It causes the temperature and pressure...

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Fuel Pump

Fuel Pump

The fuel pump is located at the fuel tank and is designed to convey the required quantity of fuel from the tank to the engine at the necessary pressure.

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Cooling (engine cooling)

Cooling (engine cooling)

In a combustion engine, the bulk of the energy contained in the fuel is converted into heat. If this heat is not effectively dissipated to the outside, the engine overheats and serious damage is caused to the engine mechanics...

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Crankshaft

Crankshaft

Combustion of the fuel-air mixture in the engine produces power. This power is transformed into rotary movement of the crankshaft.

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MAF sensor

MAF sensor

The correct relationship between air mass and fuel quantity is of significance with respect to compliance with emission standards. The purpose of an MAF sensor is to determine the air mass and pass on the values to the engine management system.

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Engine sealing technology

Engine sealing technology

Gaskets are highly technical and complex engine components. They are used in many different forms and material compositions in modern combustion engines and assemblies (gearboxes, axles, etc.)...

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Engine control

Engine control

Four-stroke engines rely on sophisticated gas exchange to run safely, efficiently and with low emissions. This means that during the intake stroke as much fresh air or fuel/air mixture as possible must...

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Camshaft

Camshaft

The camshaft is a mechanical component of an internal combustion engine. It opens and closes the inlet and exhaust valves of the engine at the right time, with the exact stroke and in a precisely defined sequence.

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Oil pump

Oil pump

The oil pump is responsible for conveying the oil for engine lubrication and building up the oil pressure in the lubrication system.

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Connecting rod

Connecting rod

The connecting rod converts the linear up and down movement of the piston into the circular motion of the crankshaft and is therefore subject to tension, compression, bending and buckling.

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Belt drive components

Belt drive components

Belt drives can be found in every modern engine. They must transmit the rotation of the crankshaft to and drive the engine control or ancillary components. The use of toothed belts to drive camshafts...

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Vibration dampers

Vibration dampers

Four-stroke piston engines exhibit non-uniform rotation. The separate strokes (suction, compression, power, exhaust) combined with the firing order of the individual cylinders dictate that the crankshaft is...

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Tensioning pulleys and deflection rollers

Tensioning pulleys and deflection rollers

In modern engines, the vast majority of ancillary components such as alternators, power steering pumps, water pumps and air conditioning compressors are driven by V-ribbed belts. Toothed belts are...

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Stop-start system

Stop-start system

A stop-start system is an automatic system designed to reduce fuel consumption.

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Timing drive

Timing drive

The timing drive must drive the camshafts and thus control the opening and closing of the valves. The timing drive can be implemented with a belt drive, a timing chain or spur gears. These timing options all...

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Exhaust turbocharger

Exhaust turbocharger

The exhaust turbocharger compresses the air supplied to the engine. Compared with naturally aspirated engines, cylinder filling is much better. Engine performance is increased whilst at the same...

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Valves

Valves

Valves seal off the combustion chamber and optimise gas exchange. As they are constantly in motion - and this under difficult tribological conditions and under the effect of aggressive gases or...

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Water pump

Water pump

So that the cooling system can release the heat generated by the engine in the best possible way, the coolant must circulate in the system. The water pump must drive the coolant and safeguard...

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Toothed belt

Toothed belt

The toothed belt controls the precision combustion process in the engine. It is driven by the crankshaft and controls the camshaft, which actuates the valves. The valves must be opened and closed at the correct time...

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Cylinders

Cylinders

In combination with the piston and the cylinder head, the cylinders of a combustion engine form the working space and combustion chamber. The cylinders are also charged with the task of...

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Cylinder head gasket

Cylinder head gasket

A cylinder head gasket is a complex high-tech component primarily designed to keep the various media such as water and oil apart in the engine, as well as providing an external seal.

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