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The MOD II project in 1980 produced one of the most efficient automotive engines ever made. The engine reached a peak thermal efficiency of 38.5%, compared to a modern spark-ignition (gasoline) engine, which has a peak efficiency of 20–25%. The Mod II project replaced the normal spark-ignition engine in a 1985 4-door Chevrolet Celebrity ...
Ignition system of a flat-twin Citroën 2CV. A wasted spark system is a type of ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke. The extra spark during ...
The pneumatic conveying line is equipped with spark detectors to detect sparks and hot or glowing particles. The detected ignition sources are extinguished at lightning speed by an automatically activated extinguishing device – mostly without production interruption. The reaction time only amounts to approx. 100 – 300 milliseconds.
Hot-bulb engine (two-stroke). 1. Hot bulb. 2. Cylinder. 3. Piston. 4. Crankcase Old Swedish hot-bulb engine in action. The hot-bulb engine, also known as a semi-diesel [1] or Akroyd engine, is a type of internal combustion engine in which fuel ignites by coming in contact with a red-hot metal surface inside a bulb, followed by the introduction of air (oxygen) compressed into the hot-bulb ...
Spark-ignition engines are commonly referred to as "gasoline engines" in North America, and "petrol engines" in Britain and the rest of the world. [1] Spark-ignition engines can (and increasingly are) run on fuels other than petrol/gasoline, such as autogas (), methanol, ethanol, bioethanol, compressed natural gas (CNG), hydrogen, and (in drag racing) nitromethane.
Early versions of Kimmel's system weighed 2,000 pounds. The FAA focused on keeping ignition sources out of the fuel tanks. The FAA did not formally propose lightweight inerting systems for commercial jets until the 1996 crash of TWA Flight 800, a Boeing 747. The crash was caused by an explosion in the center wing fuel tank.
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Auto reignition lowers the risk of gas leaks: if a flame goes out during operation, for example, from vibration or a gust of wind; due to misoperation—a user might not understand the "light" position must be maintained for about 0.5 to 2 seconds before turning the burner knob on fully.