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• Exhaust brake
  ...haust brakes have exhaust pressure modulation (EPM) that controls the back pressure which in turn improves the braking performance across a range of engine spe Some new innovations increase the exhaust back-pressure by various means, leading to more torque at the flywheel, and therefore mor
  3 KB (393 words) - 22:25, 22 September 2009
• Power steering
  ...ases, hence a relief valve is incorporated into the system to allow excess pressure to be bled away. ...used, i.e. driving in a straight line, twin hydraulic lines provide equal pressure to both sides of the steering wheel gear. When [[torque]] is applied to the
  5 KB (838 words) - 22:52, 11 June 2009
• Exhaust pipe
  ...]s, a bulge in the exhaust pipe known as an [[expansion chamber]] uses the pressure of the exhaust to create a [[pump]] that squeezes more air and fuel into th ...ater into the exhaust pipe cools the exhaust gas and thus lessens the back-pressure at the engine's cylinders' [[exhaust port]]s and thus helps the cylinders t
  9 KB (1,513 words) - 10:12, 14 June 2009
• Blowoff valve
  A '''blowoff valve''' is a pressure release system present in [[turbocharge]]d engines, its purpose is to preve ...when the throttle is lifted or closed. This air pressure is re-circulated back into the non-pressurized end of the intake (before the turbo) but after the
  5 KB (742 words) - 09:19, 7 October 2009
• Power transmission
  ...r over great distances; another set of transformers is required to step it back down to safer or more usable voltage levels at destination. [[Hydraulic]] systems use liquid under pressure to transmit power; [[canals]] and [[hydroelectric]] [[power generation]] fa
  3 KB (470 words) - 09:34, 21 September 2009
• Air brake (road vehicle)
  An air brake system uses air as a way to transmit pressure from the driver's control to the service brake. It also includes an air-ove ...compressor from pumping air. When the tank pressure falls to the "cut-in" pressure (no lower than 85 p.s.i. or 586 kPa), the governor allows the compressor to
  26 KB (4,530 words) - 21:58, 17 August 2009
• Four-stroke
  ...e is characterized by four ''strokes'', or straight movements alternately, back and forth, of a [[piston]] inside a [[cylinder (engine)|cylinder]]: ...ark plug]] for a [[gasoline]] or [[Otto cycle]] engine, or by the heat and pressure of compression for a [[Diesel cycle]] of [[compression ignition engine]], a
  11 KB (1,765 words) - 11:04, 10 November 2005
• Four-stroke cycle
  ...e is characterized by four ''strokes'', or straight movements alternately, back and forth, of a [[piston]] inside a [[cylinder (engine)|cylinder]]: ...ark plug]] for a [[gasoline]] or [[Otto cycle]] engine, or by the heat and pressure of compression for a [[Diesel cycle]] of [[compression ignition engine]], a
  11 KB (1,775 words) - 09:48, 2 August 2009
• Spoiler (automotive)
  # increasing the amount of positive pressure downward through the vehicle ...'roof spoiler''' is a small ridge of plastic or metal attached to the very back of the roof, usually just above the rear window.
  4 KB (585 words) - 10:44, 8 October 2009
• Ground effect
  ...accelerated through a narrow slot between the car and the ground, lowering pressure by [[Bernoulli's principle]]. ..., he placed them further back and discovered that a small area of negative pressure was formed under the car, generating a useful amount of downforce - around
  10 KB (1,581 words) - 22:18, 14 September 2010
• Two stroke
  ...ssing the mixture which is ignited by a [[spark plug]], driving the piston back down. ...ressurizes the crankcase. This pushes also some mixture from the crankcase back to the inlet tract, causing the reed valve to close and preventing the mixt
  15 KB (2,394 words) - 23:48, 11 September 2009
• Supercharger
  ...n accelerating the air to high speed and then exchanging that velocity for pressure by diffusing or slowing it down. ...d dramatically shorten an engine's life due to the extreme temperature and pressure created by the supercharger, but modern engines produced with modern materi
  15 KB (2,335 words) - 22:54, 14 June 2009
• Roller bearing
  ...along the ground with little sliding friction. As each log comes out the back, it is moved to the front where the block then rolls on to it. You can imi ...Thus, the contact between ball and race is of finite size and has finite pressure. Note also that the deformed ball and race do not roll entirely smoothly b
  13 KB (2,121 words) - 07:16, 6 July 2009
• Air brake (rail)
  ...g system is that any separation between hoses and pipes causes loss of air pressure and hence the loss of the force applying the brakes. This deficiency could ...system wherein each piece of railroad rolling stock was equipped with an [[Pressure tank|air reservoir]] and a ''triple valve'', also known as a ''control valv
  20 KB (3,254 words) - 23:06, 5 July 2009
• Two-stroke cycle
  ...oke engine with an expansion pipe illustrating the effect of the reflected pressure wave on the fuel charge.]] ...ssing the mixture which is ignited by a [[spark plug]], driving the piston back down.
  19 KB (3,049 words) - 09:48, 2 August 2009
• Hydropneumatic suspension
  ...ven 7-piston pump, similar in size to a power steering pump generates this pressure when the engine is running. * 2001 [[Citroën C5|C5]]: No more central hydraulic pressure generation; combined pump/sphere unit for the suspension only and with elec
  16 KB (2,430 words) - 23:46, 7 August 2009
• Brake bleeding
  ...gas]] and their presence in the brake system greatly reduces the hydraulic pressure that can be developed within the system. More sophisticated automatic systems allow brake fluid to be forced under pressure from the brake fluid reservoir into the entire system. Using these devices,
  7 KB (1,236 words) - 07:56, 16 July 2009
• 1970 Monaco Grand Prix
  ...rabham's victory seemed to be on the way though, as he resisted to all the pressure that Rindt brought on him. But the unbeliavable happened: on the last lap, | Oil Pressure
  8 KB (1,133 words) - 23:44, 21 February 2009
• Four stroke cycle
  ...e is characterized by four ''strokes'', or straight movements alternately, back and forth, of a [[piston]] inside a [[cylinder (engine)|cylinder]]: ...y a [[spark plug]] for a gasoline or Otto cycle engine, or by the heat and pressure of compression for a [[Diesel cycle]] of [[compression ignition engine]], a
  12 KB (1,944 words) - 22:56, 14 June 2009

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