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• Electric vehicle
  ...re mechanically very simple. Electric motors often achieve 90% conversion efficiency over the full range of speeds and power output and can be precisely control ...force. This allows for almost no rolling resistance of the vehicle and no mechanical wear and tear of the train or track. Note that the levitation and the forwa
  18 KB (2,741 words) - 15:59, 24 June 2009
• Ferrari 360 Challenge
  ...ng in at just 20kg more than the Challenge, it features a host of aero and mechanical refinements that combine to make it 3.5 seconds faster around Fiorano than ...ining the rear wheels and contributing significantly to improving the cars efficiency and balance. Additional downforce is generated at the back by a subtly re-p
  4 KB (674 words) - 08:58, 4 August 2009
• Air filter
  There are four main types of mechanical air filter media: paper, foam, synthetics, and cotton. ...epartment of Energy]] advises that "[Air] Filtration should have a Minimum Efficiency Reporting Value ([[MERV]]) of 13 as determined by ASHRAE 5.2.2-1999." Ther
  10 KB (1,545 words) - 23:21, 2 October 2009
• Four stroke cycle
  ...'' helping to draw the intake charge into the cylinder. In order to retain efficiency, however, the exhaust valve must be closed soon enough so that too much fue ...asses to exhaust them from the cylinder is reduced, resulting in increased efficiency.
  12 KB (1,944 words) - 22:56, 14 June 2009
• Ceramic
  ...th [[strontium titanate]]) displays [[ferroelectricity]], meaning that its mechanical, electrical, and thermal responses are coupled to one another and also hist ...impart [[transformation toughened ceramics|transformation toughening]] for mechanical applications; most ceramic knife blades are made of this material.
  17 KB (2,553 words) - 18:50, 19 July 2009
• Turbo
  ...pression pressure and to prevent [[engine knocking]]) which reduces engine efficiency when operating at low power. This disadvantage does not apply to specifical ...intake air above atmospheric pressure, greatly increasing the [[volumetric efficiency]] beyond that of [[naturally-aspirated engine]]s. A turbocharger also has a
  20 KB (3,092 words) - 23:47, 7 August 2009
• Pistonless rotary engine
  ...ion of the piston with its inherent vibration and rotational-speed-related mechanical stress. [[As of 2005]] the [[Wankel engine]] is the only successful pistonl * Mechanical simplicity.
  10 KB (1,627 words) - 08:32, 2 October 2009
• Four-stroke
  ...flow in this way is called ''scavenging''. The disadvantage is lower fuel efficiency owing to the loss of fresh mixture into the exhaust port which can, however Accomplishing maximum [[volumetric efficiency]] for a given engine is not a formulaic process. Different intake and exha
  11 KB (1,765 words) - 11:04, 10 November 2005
• Four-stroke cycle
  ...flow in this way is called ''scavenging''. The disadvantage is lower fuel efficiency owing to the loss of fresh mixture into the exhaust port which can, however Accomplishing maximum [[volumetric efficiency]] for a given engine is not a formulaic process. Different intake and exha
  11 KB (1,775 words) - 09:48, 2 August 2009
• Front-wheel drive
  ...cy: the direct connection between engine and transaxle reduce the mass and mechanical [[inertia]] of the drivetrain compared to a rear-wheel drive vehicle with a * Assembly efficiency: the powertrain can be often be assembled and installed as a unit, which al
  12 KB (1,842 words) - 23:38, 7 August 2009
• Cam in block
  ...operated by pushing directly up on it, as opposed to needing some sort of mechanical arrangement to push the valves down. It may also lead to slightly easier co Due to the heating and efficiency problems, L-head engines fell from high power uses such as [[aircraft engin
  11 KB (1,698 words) - 08:59, 8 October 2009
• Four-cylinder
  ...drogen is light and therefore has a higher specific energy, the volumetric efficiency is still roughly five times lower than petrol. This is why hydrogen must be ...]]. A "motor" (from Latin ''motor'', "mover") is any machine that produces mechanical [[Power (physics)|power]]. Traditionally, [[electric motor]]s are not refer
  22 KB (3,344 words) - 22:07, 11 August 2009
• Bandini 750 sport siluro
  ...per [[Rod (mechanical) | cylinder]] in a single block and [[Distribution (mechanical) | distribution]] [[SOHC]] gear; constituted a good basis for processing Ba ...l) | pistons]] the [[camshaft | camshafts]], the pump of oil and [[Stroke (mechanical) | race]] that was brought to 59 [[mm]], to have a [[engine capacity]] ≈
  15 KB (2,094 words) - 15:39, 3 June 2010
• Pushrod
  ...o the fact that displacement is somewhat related to the emissions and fuel efficiency of an automobile. This has given OHC engines a regulatory advantage in tho ...neumatic valve springs]]. High-revving pushrod engines are normally solid (mechanical) lifter designs, flat and roller. In 1969, [[Chevrolet]] offered a Corvette
  8 KB (1,302 words) - 08:11, 14 June 2009
• Cam-in-block
  ...operated by pushing directly up on it, as opposed to needing some sort of mechanical arrangement to push the valves down. It may also lead to slightly easier co Due to the heating and efficiency problems, L-head engines fell from high power uses such as [[aircraft engin
  11 KB (1,817 words) - 11:16, 30 January 2011
• Fuel injection
  :*fuel efficiency ...d (common with EFI), less fuel is needed for the same power output. Engine efficiency is known as the [[BSFC]] (brake specific fuel consumption). When cylinder-t
  35 KB (5,222 words) - 08:19, 11 June 2009
• Horsepower
  ...und-force|lbf]]·[[minute|min]]⁻¹. This is sometimes called a ''mechanical'' horsepower to distinguish it from the other definitions of horsepower bel ...engine]]s in the [[19th century]] but is misleading because the mechanical efficiency of an engine means that the actual power output may be only 70% to 90% of t
  15 KB (2,360 words) - 12:18, 8 October 2009
• Internal combustion engine
  ...igned an indirect-acting free-piston compression-less engine whose greater efficiency won the support of [[Langen]] and then most of the market, which at that ti ...on electrical systems that also control the combustion process to increase efficiency and reduce emissions.
  40 KB (6,068 words) - 09:48, 2 August 2009
• Turbocharger
  ...pression pressure and to prevent [[engine knocking]]) which reduces engine efficiency when operating at low power. This disadvantage does not apply to specifical ...intake air above atmospheric pressure, greatly increasing the [[volumetric efficiency]] beyond that of [[naturally-aspirated engine]]s. A turbocharger also has a
  19 KB (3,049 words) - 13:22, 8 October 2009
• Ferrari F2002
  ...for great advancement in the bodywork and increasing the car's aerodynamic efficiency at the rear. ...cheducle and initially did not represent the same performance gains as the mechanical engineering. Thus Ferrari continued its design for another two months and o
  6 KB (896 words) - 00:39, 11 April 2011

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