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Typical airflow in a four-stroke engine: In stroke #1, the pistons suck in (aspirate) air to the combustion chamber through the opened inlet valve.. A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a ...
A Roots blower is a positive displacement lobe pump that operates by pumping a fluid with a pair of meshing lobes. It is used for induction, pneumatic conveying, sirens, gas meters and cabin pressurisation in various applications.
A loudspeaker is a device that converts electrical audio signals into sound waves. Learn about the different types of loudspeakers, such as dynamic, moving iron, piezoelectric and electrostatic, and their history from 1861 to 1925.
An ignition interlock device is a breathalyzer for a vehicle that prevents the engine from starting if the driver is intoxicated. Learn about its history, design, costs, and adoption in different countries.
A turbocharger is a device that compresses the intake air using the energy of the exhaust gases to increase the engine power. Learn about its design, components, history and applications in various fields.
Learn about the history, design, applications, and emissions of two-stroke engines, which complete a power cycle with two strokes of the piston in one crankshaft revolution. Compare them with four-stroke engines and see examples of two-stroke engines in cars, motorcycles, tools, and more.
Bentley Blower No.1 is a racing car developed from the Bentley 4½ Litre by Sir Henry "Tim" Birkin to win the Le Mans twenty-four-hour race. Learn about its history, design, performance, and legacy in this comprehensive article.
As major pharmacy chains like CVS and Walgreens roll out the new Covid vaccine, independent pharmacies say they’re facing delays in getting their shipments, leading to longer wait times for ...