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In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
The ignition switch was designed to remove power from the vehicle's airbags when in the Off or Accessory mode. [11] Therefore, this was a safety hazard: If the switch changed from Run to Accessory and the vehicle was involved in an accident, it would no longer have power to release the airbags, and it would be difficult for the driver to steer ...
An ignition switch, starter switch or start switch is a switch in the control system of a motor vehicle that activates the main electrical systems for the vehicle, including "accessories" (radio, power windows, etc.).
Turning the ignition to the ACC (accessory) position, which, while cutting power to the engine, will also disable the power steering and the brake assist. Turning the ignition key to the OFF position, which will also cut power, but may cause lockage of the steering wheels and will also disable the power steering and the brake assist. [84]
The reduced engine speeds allow more time for autoignition chemistry to complete thus promoting the possibility of pre-ignition and so called "mega-knock". Under these circumstances, there is still significant debate as to the sources of the pre-ignition event. [3] Pre-ignition and engine knock both sharply increase combustion chamber temperatures.
The suspect in the killing of top Russian general Igor Kirillov has been charged with an act of terrorism resulting in the death of a person, a notice on the website of the Moscow court said on ...
From January 2008 to December 2012, if you bought shares in companies when William A. Osborn joined the board, and sold them when he left, you would have a 26.6 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
The small, upright piano played a key role in one of the film’s most memorable and emotional moments. 9. The Batmobile: ‘Batman’ (1966) Silver Screen Collection/Hulton Archive/Getty Images.