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Topic: Internal-combustion engine

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Internal combustion engine - Wikipedia, the free encyclopedia Internal combustion engines can be classified by their configuration which affects their physical size and smoothness (with smoother engines producing less vibration). The internal combustion engine is a heat engine in which combustion occurs in a confined space called a combustion chamber. Internal combustion engines can be classified by their ignition system. en.wikipedia.org /wiki/Internal_combustion_engine   (3418 words)

MSN Encarta - Internal-Combustion Engine Four principal types of internal-combustion engines are in general use: the Otto-cycle engine, the diesel engine, the rotary engine, and the gas turbine. In most engines with a carburetor, vaporized fuel is conveyed to the cylinders through a branched pipe called the intake manifold and, in many engines, a similar exhaust manifold is provided to carry off the gases produced by combustion. The fourth stroke, as in the Otto-cycle engine, is an exhaust stroke. encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761553622   (1552 words)

internal combustion engine for power generation It is evident when investigating the cycle of internal combustion engine, only 40% or lesser amount of heat energy is converted in to useful work and the major part of energy is dissipated as losses. Internal combustion engine is a fluid machine applicable as a heat engine. The degree of heat utilization in internal combustion engines is determined by different efficiencies: thermal, overall, mechanical, etc. www.geocities.com /ljaya6390/cengine.htm   (807 words)

Internal-combustion engine Jet engines and gas turbines use internal combustion, but the term 'internal-combustion engine' is normally used only to refer to engines in which combustion is intermittent (and usually featuring reciprocating machinery). His designs are nearly identical to ideas which deal with the same process which modern internal combustion engines use. A critically important portion of any internal-combustion engine is its ignition system, which controls the timing of the burning of the fuel mixture. bopedia.com /en/wikipedia/i/in/internal_combustion_engine.html   (462 words)

Combustion in Internal Combustion Engines and Fuel Cells The laminar burning velocity data are for use in a turbulent entrainment model of spark ignition engine combustion. combustion in spark ignition engines, laser combustion diagnostics, spark ignition engine modelling. Dr Stone has been responsible for developing a multi-zone combustion model that predicts Spark Ignition (SI) engine performance and emissions. www.eng.ox.ac.uk /World/Research/Summary/B-Combustion.html   (850 words)

BBC - Radio 4 You and Yours - Triumph of Technology: Internal Combustion Engine The principle of the internal combustion engine was technically established by the advent of fireworks in the Chinese Song dynasty, but it was in 1826 that the American Samuel Morey received a patent for his reciprocating internal combustion engine. An internal combustion engine is any engine that burns fuel inside the engine - cars, motorbikes, and many types of generator all make use of the internal combustion engine. BBC - Radio 4 You and Yours - Triumph of Technology: Internal Combustion Engine www.bbc.co.uk /radio4/youandyours/technology_combustion_engine.shtml   (157 words)

Off-Road.com Tech Article: Torque and Horsepower In an internal combustion engine, the fuel in the combustion chamber is ignited by a spark (gasoline) or from compression (diesel), creating high pressure gasses that press down on the pistons. To further complicate matters, the crank turns at varying rates (engine rpm), different amounts of gasses expanding (throttle), etc. The bottom line is that engines develop differing amounts of torque during operation which is hard to predict. The combustion gases develop pressure right away and continue while the crank is turning. www.off-road.com /hummer/tech/power.html   (1275 words)

TRICE; True Rotating Internal Combustion Engine All engines burn fuel to heat air in a confined space utilising the resulting rise in pressure to generate mechanical energy. Therefore if it were possible to replace the inefficient reciprocating engine with one equal in efficiency to a turbo-jet, the consumption of petrol, and hence the resulting pollution, would be reduced by 2/3rd to 1/3rd its current level - (In 1995 road transport in the UK produced 30 million tonnes of carbon dioxide). Turbine engines, however, have much less restriction on temperature, produce rotary motion, and, if used in stationary mode, have lower residual pressure in their exhaust. www.archerengine.dabsol.co.uk   (797 words)

Chapter 12 - Internal combustion engine Thus, in internal combustion engines, the burning of fuel takes place inside the engine; that is, burning takes place within the same cylinder that produces energy to turn the crankshaft. combustion engine, the combustion takes place inside the cylinder and is directly responsible for forcing the piston to move downward. The engine that moves it is one of the most fascinating and talked about of all the complex machines we use today. www.tpub.com /machines/12.htm   (505 words)

Internal-Combustion Engine Internal combustion (IC) engines have been the mainstay of automobile design for a century. However, IC engines are inherently inefficient: typically less than 30 percent of the fuel is converted into torque in an Otto engine, up to 45 percent in the best diesels (the rest is lost as heat or unburned fuel). There are various types of IC engines, including four-stroke spark-ignition ("Otto Cycle"—the kind found in most cars), four-stroke diesel, and two-stroke versions of both (as found in chainsaws, some motorcycles, and most outboard motors). www.rmi.org /sitepages/pid455.php   (220 words)

Howstuffworks "How Rotary Engines Work" A rotary engine is an internal combustion engine, like the engine in your car, but it works in a completely different way than the conventional piston engine. In a piston engine, the same volume of space (the cylinder) alternately does four different jobs -- intake, compression, combustion and exhaust. The rotary engine (originally conceived and developed by Dr. Felix Wankel) is sometimes called a Wankel engine, or Wankel rotary engine. www.howstuffworks.com /rotary-engine.htm   (171 words)

Internal Combustion Engine As the name implies, the combustion process of an internal combustion engine takes place in an enclosed cylinder. When discussing engines, we must consider both the mechanical operation of the machine and the thermodynamic processes that enable the machine to produce useful work. The basic mechanical design of the Wright engine is remarkably similar to modern, four-stroke, four cylinder automobile engines. www.grc.nasa.gov /WWW/K-12/airplane/icengine.html   (366 words)

internal-combustion engine Gas turbines and jet and rocket engines are also considered to be internal& engines because they burn their fuel inside their combustion chambers. The diesel engine and petrol engine are both internal& engines. Heat engine in which fuel is burned inside the engine, contrasting with an external-combustion engine (such as the steam engine) in which fuel is burned in a separate unit. www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016346.html   (117 words)

Halfbakery: internal combustion steam engine Recent internal combustion research is looking at ways to increase the combustion temperature, for instance by using ceramic engine parts that don't melt. Injecting a fluid such as water into a combustion chamber would be totally pointless and would ultimately provide the opposite effect that would be required in a powerplant such as the internal-combustion engine. This is done in the hot combustion concept, where the piston top cooling and the cylinder head cooling are eliminated, and the cylinder liner cooling is minimised.This makes it possible to elevate the exhaust gas temperature after the turbocharger by more than 100 degrees Celsius, and significant volumes of steam can be produced. www.halfbakery.com /idea/internal_20combustion_20steam_20engine   (6365 words)

Hetex Engines - A Commonwealth of Virginia corporation Four-stroke engines as devised by Nikolaus A. Otto in 1876 dominate these small to medium power products where long life, low cost, and low fuel consumption are more important. Overall, we are developing engines that are both more efficient and less expensive for the portable power needs of society. The smaller mechanisms which include model aircraft, leaf blowers, chainsaws, outboard motors, and motorbikes generally use gasoline powered, two-stroke engines as devised by Robson in 1877 and 1880 and later improved by Day and Clerk. hetexengines.com   (174 words)

HUT Internal Combustion Engine Laboratory / Main Internal Combustion Engine Laboratory (ICEL) is located at Department of Mechanical Engineering. Laboratory has engaged in advanced diesel engine research in several fields, for example modelling of gas exchange, fuel injection and combustion, experimental study of diesel sprays, new fuel injection technologies, advanced design of engine components, in-cylinder diagnostics, engine tribology and engine noise control. The responsibilities of the laboratory include undergraduate and graduate education in engine technology, focusing especially on diesel engines. www.icel.tkk.fi   (81 words)

Amazon.com: Internal Combustion Engine in Theory and Practice: Vol. 2 - 2nd Edition, Revised: Combustion, Fuels, Materials, Design: Books: Charles Fayette Taylor This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. www.amazon.com /exec/obidos/tg/detail/-/0262700271?v=glance   (974 words)

internal-combustion engine. The New Dictionary of Cultural Literacy, Third Edition. 2002 Internal-combustion engines normally burn fossil fuels and therefore are a major source of air pollution. Any engine powered by burning fuel inside it (for example, a standard automobile engine). www.bartleby.com /59/23/internalcomb.html   (124 words)

Back to the Basics Many people claimed the invention of the internal combustion engine in the 1860's, but only one has the patent on the four stroke operating sequence. The four strokes of the internal combustion engine are as follows (and in order): Intake, Compression, Power, and Exhaust. Before explaining the operation of the four-stroke engine, some of the internal parts must be identified. www.siu.edu /~autoclub/frange.html   (1018 words)

Animated Engines, Otto Four Stroke The illustrated engine features a 'poppet' intake valve which is drawn open by the vacuum produced by the intake stroke. Larger four stroke engines usually include more than one cylinder, have various arrangements for the camshaft (dual, overhead, etc.), sometimes feature fuel injection, turbochargers, multiple valves, etc. None of these enhancements changes the basic operation of the engine. Some early engines worked this way, however most modern engines incorporate an extra cam/lifter arrangement as seen on the exhaust valve. www.keveney.com /otto.html   (278 words)

Internal Combustion Engine without pistons! Oscillator internal combustion engine is introducing an innovative technology to substitute pistons and crank gear with oscillating flaps. These conditions leads to most essential requirements of an ideal internal combustion engine and special demands that cannot met with a conventional power generator. Oscillator Engine is minimizing internal resistance to boost power and efficiency. www.oengine.com   (410 words)

Internal Combustion Engine The objective of this research is to determine the reaction behavior of radicals and species in the combustion chamber of an internal combustion (IC) engine. An optically accessible internal combustion engine is used to provide total optical access to the combustion chamber and offers the opportunity to observe the instantaneous combustion process inside the combustion chamber. A study of engine combustion by observation of radicals during combustion www.enme.umd.edu /combustion/engine.html   (154 words)

DieselNet: Diesel Emissions Online Internal combustion engines are significant contributors to air pollution, which has a damaging impact on our health and the environment and is suspected to cause global climate changes. Diesel engine is the most efficient power plant among all known types of internal combustion engines. These engine categories were not covered by the Tier 4 regulation adopted in May 2004. www.dieselnet.com   (1009 words)

ASME : Internal Combustion Engine Division - of the American Society of Mechanical Engineers has been promoting the art and science of mechanical engineering of engines, encouraging and fostering research and development for mobile, marine, rail, generation and stationary applications and summarizing and publishing reliable data concerning these pursuits since 1921. The Society looks after the professional development and well-being of its member engineers and conducts extensive programs to enable the engineering profession to aid in the betterment of our lives. The ICE Division is one of 37 technical divisions and institutes of the ASME. divisions.asme.org /ice   (138 words)

Communities - Technical Communities - Divisions Promoting the art and science of engines while also encouraging and fostering research and development for mobile, marine, rail, generation and stationary applications. ASME's manufacturing engineering division which fosters the transfer of technology related to manufacturing between industry, universities and national research laboratories. Promotes the art, science and practice of fuels handling, combustion, preparation, processing, and emission control in large power plants throughout the world. www.asme.org /divisions/ice   (925 words)

Hydrogen from the Sun - Nuclear Fusion for Free However, nearly all hydrogen used today is produced by means of expensive processes that require combustion of polluting fossil fuels. be much cleaner than that from gasoline engines. Hydrogen, the most plentiful element in the universe, is an attractive candidate for becoming a pollution-free fuel of the future. www.energycooperation.org /solarh2.htm   (4577 words)

Howstuffworks "How Car Engines Work" A car engine can look like a big confusing jumble of metal, tubes and wires to the uninitiated. If you have ever wondered about this kind of stuff, then read on -- In this article, we'll discuss the basic idea behind an engine and then go into detail about how all the pieces fit together, what can go wrong and how to increase performance. Or perhaps you are buying a new car, and you hear things like "3.0 liter V-6" and "dual overhead cams" and "tuned port fuel injection." What does all of that mean? auto.howstuffworks.com /engine.htm   (159 words)

Animated Engines Engines in particular have always intrigued me. All my life I've pored over books, studying cutaway diagrams, hungry to understand how things worked. I hope you enjoy visiting my engine pages as much as I have enjoyed creating them. Are there any other engines you think I ought to make illustrations of? www.keveney.com /Engines.html   (265 words)

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