ABSTRACT Camless internal combustion engines offer major improvements over traditional engines in terms of efficiency‚ maximum torque and power‚ pollutant emissions. Electromechanical valve actuators are very promising in this context‚ but still present significant control problems. Low valve seating velocity‚ small transition time for valve opening and closing‚ unavailability of position sensor are the main objectives to be considered in the design of the valve control system. Actuator physical
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Wankel Rotary Engine: A History by John B. Hege Well Done Conceived in the 1930s‚ simplified and successfully tested in the 1950s‚ the darling of the automotive industry in the early 1970s‚ then all but abandoned before resurging for a brilliant run as a high-performance powerplant for Mazda‚ the Wankel rotary engine has long been an object of fascination and more than a little mystery. A remarkably simple design (yet understood by few)‚ it boasts compact size‚ light weight and nearly vibration-free
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evolution Why these evolutions ? For programming languages: need of more expressive power For game programming methods : need of less development time How did we get there ? To get closer to the heart of the game : the gameplay Game Game Components Engine Content + Rules Platform Content Content Components sound effects scripting story as well as … • user interface lighting Content modeling level design texturing / surfacing animation visual technologies Content Content Creation Method
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Koenigsegg’s New Cam-Less Engine February 13‚ 2012 by Matt Jalopnik reports on an upcoming supercar from Swedish boutique automaker Koenigsegg that will feature a twin-turbo V8 engine whole valves are actuated without camshafts. Partnering with Swedish engineering firm Cargine‚ Koenigsegg plans to develop a valvetrain system whereby the valves are operated using pneumatic pressure alone. F1 car engines have used pneumatic valve springs since the Renault turbo engines of the mid-’80s‚ but always
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Competition Apex Seal Information Engine — Rotary Carbon apex seals and Iannetti Advanced Carbon seals are recommended for any engine that will see 8000 rpm and above. They weigh significantly less than the stock (cast iron) apex seals and provide lower mass‚ keeping the apex seal in contact with the rotor housing face at high rpm. At high rpm‚ the stock (cast iron) seal overcomes the spring‚ causing the seal to skip across the rotor housing surface‚ reducing engine performance. Cast iron seals
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This is a Newspaper on Steam engines. The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam the new design replaced Newcomen engines in areas where coal was expensive‚ and then went on to be used in the place of most natural power sources such as wind and water. A Scottish instrument maker‚ James Watt‚ was given the job in 1763 of repairing a model Newcomen engine for the University of Glasgow‚ and noted how inefficient
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AVL PRODUCT DESCRIPTION FUEL CONSUMPTION MEASUREMENT AVL FUEL MASS FLOW METER Description The AVL Fuel Mass Flow Meter is a high precise and continuous fuel consumption measurement system‚ which is used worldwide at almost all engine test beds where engines of a maximum consumption of 125 kg/h are tested. The system stands out for a very high accuracy and because of the modular design it can be combined with existing conditioning systems. The fuel system AVL Fuel Mass Flow Meter enables a
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The Invention of the jet Engine Mohammadhossein Khoddammohammadi January 25‚ 2014 A jet engine is a reaction engine discharging a fast moving jet that generates thrust by jet propulsion in accordance with Newton’s laws of motion. This broad definition of jet engines includes turbojets‚ turbofans‚ rockets‚ ramjets‚ and pulse jets. In general‚ jet engines are combustion engines but non-combusting forms also exist. In common parlance‚ the term jet engine loosely refers to an internal
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Applied Science Research 12th Grade 10/21/07 Stirling Engine Brandon Risberg Abstract: This paper includes a historical overview of the Stirling engine. It also includes an overview of the mechanics of a Stirling engine‚ and the results of the author’s project to build a Stirling engine. Although this engine did not work‚ this paper includes ways to improve in future projects. History: The original Stirling engine was designed and developed by Reverend Dr Robert Stirling [1]‚ a fantastic engineer
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Introduction to Engine Performance – Study Guide ©2005 Melior‚ Inc. ____________________________________________________________________________________ Introduction The engine is the power plant of a vehicle. Automotive engines have gone through tremendous changes since the automobile was first introduced in the 1880s‚ but all combustion engines still have three requirements that must be met to do their job of providing power – air‚ fuel‚ and ignition. The mixture of air and fuel must be compressed
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