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Inertial supercharging effect

The inertial supercharging effect is the increase of volumetric efficiency in the cylinder of an engine.[1]

Background edit

The internal combustion engine is the most common engine found in mechanical devices across the world.  The engine is powered by an air/gasoline mixture and the physics principles of heat and pressure.

Overview edit

Inertial supercharging effect is the result of incoming fuel/air charge developing momentum greater than intake stroke would generate alone. It is achieved by the careful design of the shape of the piston head, the valves and cam profile/valve timing which creates a vacuum that pulls more exhaust gases (and some of the intake gasses) out of the engine. This is immediately followed by a reflected pressure wave timed to force the extra intake gasses back into the cylinder, thus achieving a greater mass of air/fuel mix in the combustion chamber than possible with conventional methods. Expansion chambers only work well at a narrow engine speed range which is why two stroke engines are referred to as having a "powerband". Since the early 1980s exhaust powervalves have been developed which have the effect of altering the timing and/or volume of the expansion chamber, greatly improving the spread of power of high output two stroke engines.[2]

The idea behind this effect is that if more pressure is created within the cylinder, the faster the piston will be able to move.[1] The volumetric efficiency is maximized to increase the amount of air/fuel mixture in the cylinder during each cycle.[3] In turn, a greater air/fuel mixture in a cylinder will create a greater pressure therefore exerting a greater force on the piston.  This increased force on each individual piston increases the potential horsepower of the entire engine.[4] The timing of the opening and closing of the valves is essential to ensure the air in the cylinder is maximized to create the most power in each cycle.[5]

See also edit

References edit

  1. ^ a b "Inertia Supercharging Air Flow Optimization - Aircraft Engine Overhaul". www.victor-aviation.com. Retrieved 2019-03-25.
  2. ^ P.W Performance Aust.
  3. ^ Bohacz, Ray T. “Forced Induction .” Hemmings.com, May 2015, www.hemmings.com/magazine/hcc/2015/05/Forced-Induction/3748512.html.
  4. ^ Hu, Bo; Turner, James WG; Akehurst, Sam; Brace, Chris; Copeland, Colin (March 2017). "Observations on and potential trends for mechanically supercharging a downsized passenger car engine:a review". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 231 (4): 435–456. doi:10.1177/0954407016636971. ISSN 0954-4070.
  5. ^ "Valve Timing Events and the Order of Importance". Engine Builder Magazine. 2016-04-15. Retrieved 2019-03-25.
  1. “Timing Is Everything .” Magnaflux Inspection - Aircraft Engine Overhaul, Victor Aviation Services, www.victor-aviation.com/Inertia_Supercharging_AirFlow_Optimization.ph
  2. Brain, Marshall, and Kristen Hall Geisler. “How Car Engines Work.” HowStuffWorks, 5 Apr. 2000, auto.howstuffworks.com/engine1.htm
  3. P.W. Performance Exhaust
  4. Bohacz, Ray T. “Forced Induction .” Hemmings.com, May 2015, www.hemmings.com/magazine/hcc/2015/05/Forced-Induction/3748512.html.
  5. Hu, Bo, et al. “Observations on and Potential Trends for Mechanically Supercharging a Downsized Passenger Car Engine:a Review.” Journal of Research in Crime and Delinquency, 6 Apr. 2016, journals.sagepub.com/doi/full/10.1177/0954407016636971.
  6. Kertes, Rick. “Valve Timing Events and the Order of Importance.” Engine Builder Magazine, 19 Apr. 2017, www.enginebuildermag.com/2016/04/valve-timing-events-and-the-order-of-importance/.

inertial, supercharging, effect, inertial, supercharging, effect, increase, volumetric, efficiency, cylinder, engine, contents, background, overview, also, referencesbackground, editthe, internal, combustion, engine, most, common, engine, found, mechanical, de. The inertial supercharging effect is the increase of volumetric efficiency in the cylinder of an engine 1 Contents 1 Background 2 Overview 3 See also 4 ReferencesBackground editThe internal combustion engine is the most common engine found in mechanical devices across the world The engine is powered by an air gasoline mixture and the physics principles of heat and pressure Overview editInertial supercharging effect is the result of incoming fuel air charge developing momentum greater than intake stroke would generate alone It is achieved by the careful design of the shape of the piston head the valves and cam profile valve timing which creates a vacuum that pulls more exhaust gases and some of the intake gasses out of the engine This is immediately followed by a reflected pressure wave timed to force the extra intake gasses back into the cylinder thus achieving a greater mass of air fuel mix in the combustion chamber than possible with conventional methods Expansion chambers only work well at a narrow engine speed range which is why two stroke engines are referred to as having a powerband Since the early 1980s exhaust powervalves have been developed which have the effect of altering the timing and or volume of the expansion chamber greatly improving the spread of power of high output two stroke engines 2 The idea behind this effect is that if more pressure is created within the cylinder the faster the piston will be able to move 1 The volumetric efficiency is maximized to increase the amount of air fuel mixture in the cylinder during each cycle 3 In turn a greater air fuel mixture in a cylinder will create a greater pressure therefore exerting a greater force on the piston This increased force on each individual piston increases the potential horsepower of the entire engine 4 The timing of the opening and closing of the valves is essential to ensure the air in the cylinder is maximized to create the most power in each cycle 5 See also editExhaust pulse pressure charging Kadenacy effect Pressure wave supercharger SuperchargerReferences edit a b Inertia Supercharging Air Flow Optimization Aircraft Engine Overhaul www victor aviation com Retrieved 2019 03 25 P W Performance Aust Bohacz Ray T Forced Induction Hemmings com May 2015 www hemmings com magazine hcc 2015 05 Forced Induction 3748512 html Hu Bo Turner James WG Akehurst Sam Brace Chris Copeland Colin March 2017 Observations on and potential trends for mechanically supercharging a downsized passenger car engine a review Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering 231 4 435 456 doi 10 1177 0954407016636971 ISSN 0954 4070 Valve Timing Events and the Order of Importance Engine Builder Magazine 2016 04 15 Retrieved 2019 03 25 Timing Is Everything Magnaflux Inspection Aircraft Engine Overhaul Victor Aviation Services www victor aviation com Inertia Supercharging AirFlow Optimization ph Brain Marshall and Kristen Hall Geisler How Car Engines Work HowStuffWorks 5 Apr 2000 auto howstuffworks com engine1 htm P W Performance Exhaust Bohacz Ray T Forced Induction Hemmings com May 2015 www hemmings com magazine hcc 2015 05 Forced Induction 3748512 html Hu Bo et al Observations on and Potential Trends for Mechanically Supercharging a Downsized Passenger Car Engine a Review Journal of Research in Crime and Delinquency 6 Apr 2016 journals sagepub com doi full 10 1177 0954407016636971 Kertes Rick Valve Timing Events and the Order of Importance Engine Builder Magazine 19 Apr 2017 www enginebuildermag com 2016 04 valve timing events and the order of importance Retrieved from https en wikipedia org w index php title Inertial supercharging effect amp oldid 1161005282, wikipedia, wiki, book, books, library,

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