A piston is a cylindrical plunger that moves within a metal cylinder through the four strokes of the engine cycle: intake, compression, power and exhaust. While their motion is predicated on other engine parts and the mi... More »

The main role of piston rings in cars is to regulate the amount of oil cars consume. Piston rings form seals around combustion chambers, which allows them to transfer heat to cylinder walls. To form the seals, piston rin... More »

Some of the most common ways to recognize piston ring failure include excessive oil consumption by the vehicle, noticeably low power during acceleration and excessive amounts of white or grey smoke emanating from the exh... More »

Jake brakes work by opening the exhaust valve at the end of a diesel engine’s compression stroke to vent the compressed air through the exhaust so it does not cause a rebound of the piston to begin the next cycle. The sy... More »

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"Swept volume" is defined as the volume of fluid through which a piston or plunger moves when it makes a stroke in an engine, according to Oxford Dictionaries. The swept volume times the number of cylinders in an engine ... More »

Steam is produced by a boiler in the engine, which is then sent into a cylinder that contains a piston onto which the steam puts pressure until it moves and in turn moves the machinery attached to it. Once the piston has... More »

As the piston in an engine moves down, a mixture of fuel and air gets drawn into the cylinder, which causes compression. This compression is ignited by the spark plugs, causing the exhaust valve to open to allow the burn... More »