Noun
Related termsFrom Wiktionary under the GNU Free Documentation License. The internal combustion engine is an engine in which the combustion of a fuel (generally, fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine the expansion of the high temperature and pressure gases, which are produced by the combustion, directly applies force to a movable component of the engine, such as the pistons or turbine blades and by moving it over a distance, generate useful mechanical energy. The term internal combustion engine usually refers to an engine in which combustion is intermittent, such as the more familiar four-stroke and two-stroke piston engines, along with variants, such as the Wankel rotary engine. A second class of internal combustion engines use continuous combustion: gas turbines, jet engines and most rocket engines, each of which are internal combustion engines on the same principle as previously described. The internal combustion engine (or ICE) is quite different from external combustion engines, such as steam or Stirling engines, in which the energy is delivered to a working fluid not consisting of, mixed with or contaminated by combustion products. Working fluids can be air, hot water, pressurised water or even liquid sodium, heated in some kind of boiler by fossil fuel, wood-burning, nuclear, solar etc. A large number of different designs for ICEs have been developed and built, with a variety of different strengths and weaknesses. Powered by an energy-dense fuel (which is very frequently petrol, a liquid derived from fossil fuels), the ICE delivers an excellent power-to-weight ratio with few safety or other disadvantages. While there have been and still are many stationary applications, the real strength of internal combustion engines is in mobile applications and they dominate as a power supply for cars, aircraft, and boats, from the smallest to the biggest. Only for hand-held power tools do they share part of the market with battery powered devices. An automobile engine partly opened and colored to show components.From Wikipedia under the
GNU Free Documentation License What plays the role of high-temperature and low-temperature reservoirs in a)an internal combustion engine and? Q. What plays the role of high-temperature and low-temperature reservoirs in a)an internal combustion engine and b) a steam engine? Are they strictly speaking heat reservoirs? (20-4) please help thanks! Asked by Kiwikahuna - Thu Jan 31 01:35:01 2008 - - 2 Answers - 0 Comments A. In an Otto engine. the high temp reservoir is the cylinder at the instant of firing, and the low temperature is the atmosphere. In a steam engine, the high temp is the boiler, and the low temp is the temperature at which water boils at the ambient pressure (100 C at sea level). All of these can be considered reservoirs for thermodynamic calculations. Answered by rhsaunders - Thu Jan 31 01:48:40 2008 Do you think, humans will have a replacement for the internal combustion engine in the next fifty years? Q. An engine as efficient as the internal combustion engine is yet to be found. Do you think this discovery is likely fifty years down the line. Asked by susie - Sat Aug 5 15:27:25 2006 - - 7 Answers - 1 Comments A. It depends on how you look at efficiency. If humanity knows how to produce a cheap fuel that's not polluting (they're working on that, but not as hard as they should), then everything we know now (combustion, jet engines) will be economically efficient enough not to look for an alternative for the engines itself. Engine efficiency does not play the biggest roll if the fuel is cheap and sufficient available, unless you have to go a long stretch (like planes and ships). And I've not heard of any revolutionary idea yet that would suggest there's a new "fuel --> mechanics" system in the making. But probably solar/nuclear/wind-energy etc. will be producing a lot more of our electrical energy to charge our battery-packs (which will be getting… [cont.] Answered by Caveman - Sat Aug 5 17:57:09 2006 How do I determine the work performed per cycle for an internal-combustion engine?
Q. For the engine, the following are given: Qin (heat energy input per cycle): 2000J Qout (heat energy output per cycle): 500J f (cycles per second): 50Hz Thanks in advance. Asked by pu d - Sat Apr 3 18:21:18 2010 - - 1 Answers - 0 Comments A. use the Pearson's chi square test Answered by Etienne de Quercy - Wed Apr 7 18:06:19 2010 From Yahoo Answer Search: "internal combustion engine"  wired.com Thu, 22 Jul 2010 17:10:21 GMT+00:00 Wired News In a nutshell, his company owns the notion of back-and-forth cooperative management of an internal - combustion engine and an electric motor. ... One Man Fights Toyota And Wins All Cars Electric (blog)  autoevolution.com Wed, 11 Aug 2010 13:26:21 GMT+00:00 autoevolution ... 2010 in California, powered by lithium-ion batteries which will give it a range of up to 40 miles without the use of the internal combustion engine . ...  thisissomerset.co.uk Wed, 11 Aug 2010 14:33:53 GMT+00:00 , vehicle manual ... This is Somerset The firm has reached out to children too, linking with Trends UK, producer of the little Internal Combustion Engine . The kit allows its owner to construct a ... From Google News Search: "internal combustion engine"  gerardsgarage.com 375px x 500px | 30.70kB [source page] Frame from computer animation of cutaway internal combustion engine  auuuu.com 438px x 549px | 42.90kB [source page] moving again toward the first An output shaft is connected to the rotors in such manner that the shaft rotates continuously while the rotors and pistons move in their stepwise fashion The engine fires 16 times on one revolution of the crankshaft 32 times on two By comparison a standard V8 fires four times per crankshaft revolution one quarter the number of the MYT From Yahoo Image Search: "internal combustion engine"  masterresource.org mlynch Wed, 21 Jul 2010 06:00:35 GM It means nothing that, even after a century of development, batteries still cannot compete with the . internal combustion engine. in economics, range, power, or performance. The electric car is in fact a Potemkin village on wheels a ...  flypdf.com unknown Mon, 12 Jul 2010 06:41:47 GM combustion engine system. Such precision control is of the . internal combustion engine. control system of the present invention.  autopartblog.com admin ue, 06 Jul 2010 00:52:58 GM Before going into detail account of car . engine. one should know, what does an . engine. mean? . Engine. is a mechanical device which converts energy into the motion. From Google Blog Search: "internal combustion engine" |
