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Topic: Petrol engine

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	Gasoline engine - Wikipedia, the free encyclopedia
		Gasoline engine (also referred to as petrol engine or Otto engine) invented at the end of the 19th century by German engineer Nikolaus Otto is a type of internal combustion engine which is often used for automobiles, aircraft, small mobile vehicles such as lawnmowers or motorcycles, and outboard motors for boats.
		The most common engine of this type is a four-stroke cycle internal combustion engine that burns gasoline (in American English) or petrol (Commonwealth English).
		The two-stroke cycle type of engine is often used for smaller, lighter and cheaper applications but it is less fuel efficient and, partly as a result, produces more hydrocarbon exhaust emissions.
	en.wikipedia.org /wiki/Gasoline_engine (322 words)

	Heat engine - Open Encyclopedia (Site not responding. Last check: 2007-10-08)
		A heat engine performs the conversion of heat energy to work by exploiting the temperature gradient between a hot "source" and a cold "sink".
		The carnot heat engine (the ideal imaginary heat engine) has an efficiency equal to (T1 - T2)/T1 where T1 is the absolute temperature of the hot source and T2 that of the cold sink.
		Examples of everyday heat engines include: the steam engine, the diesel engine, and the gasoline (petrol) engine in an automobile.
	open-encyclopedia.com /Heat_engine (455 words)

	Petrol engine
		Petrol engine was introduced by the engineers Gottlieb Daimler and Karl Benz (both from Germany) in 1885.
		Petrol engines are compact and light in weight for the power they produce.
		The four stroke engine is called so because the working of an internal combustion engine is divided into four stages called four strokes of the engine.
	www.buzzle.com /editorials/8-19-2004-58070.asp (522 words)

	Engine Trends
		Diesel engines inject fuel either into the cylinder proper or into a small chamber off the cylinder, but direct injection on petrol (gasoline) engines is not new either, e.g.
		The petrol engine (say) drives a generator to charge the batteries; it can be turned on and off as needed, and can be optimized to run efficiently in a narrow rev' range.
		The Mazda engine incorporates a super-charger and inter-cooler, the explanation being that this compensates for the effective reduction in engine capacity due to the shorter compression stroke; the super-charger is said to be more efficient at compressing the intake mixture than a full compression stroke would be.
	www.4wdonline.com /A/Engines.html (2762 words)

	Heat engine - Wikipedia, the free encyclopedia
		In engineering and thermodynamics, a heat engine performs the conversion of heat energy to mechanical work by exploiting the temperature gradient between a hot "source" and a cold "sink".
		Refrigeration (a refrigerator is a heat pump: a heat engine in reverse.
		This efficiency is usually derived using an ideal imaginary heat engine such as the carnot heat engine, although other engines using different cycles can also attain maximum efficiency.
	en.wikipedia.org /wiki/Heat_engine (510 words)

	petrol engine
		The petrol engine is a complex piece of machinery made up of about 150 moving parts.
		It is a reciprocating piston engine, in which a number of pistons move up and down in cylinders.
		A mixture of petrol and air is introduced to the space above the pistons and ignited.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0006204.html (432 words)

	Gasoline engine
		Gasoline (or petrol) engine is a type of engine which is often used for automobiles, small mobile vehicles such as lawnmowers or motorcycles and outboard motors for boats.
		The most common engine of this type is a four stroke cycle internal combustion engine that burns gasoline (American usage) or petrol (British usage).
		In more modern engines, a small electronic computer measures these parameters, and controls one or more electric injectors, which can be in the intake throat, commonly called throttle-body injection or in the individual intake runners, commonly called port fuel injection.
	www.brainyencyclopedia.com /encyclopedia/g/ga/gasoline_engine.html (485 words)

	FSI – DIRECT INJECTION PETROL ENGINE
		The direct-injection engine also benefits from reduced heat losses, because the layer of air around the ‘cloud’ of ignitable mixture isolates the latter from the cylinder and cylinder head.
		This movement is imparted to the air by a movable flap in the intake pipe and by the shape of the intake port and the piston crown.
		The engine block and the main dimensions are identical with the engine already familiar from the A4 and A6.
	media.audiusa.com /print_doc.cfm?article_id=9117 (1285 words)

	Economics of Diesel Car - Comparison between Petrol & Diesel Cars
		A petrol engine is a "spark ignition" engine.
		One problem for a petrol engine is that if the compression ratio is too high, and the pressure in the cylinder gets too high during the inlet stroke, then the fuel/air mixture can start to burn too soon, while the piston is still on the way up.
		With a diesel engine, there is no fuel in the cylinder during the compression stroke, so a turbo can be used to pack as much air in there as desired without causing problems.
	www.indiacar.com /infobank/diesel1.htm (1315 words)

	disco2.com - Tech - V8i Petrol Engine Management System - System Inputs (Site not responding. Last check: 2007-10-08)
		If the sensor fails when the engine is running, then the engine will stall, a fault code will be stored and details captured, of the battery voltage, coolant temperature and air temperature at the time of the failure.
		The amount of time the engine has been running and the temperature of the air entering the engine are the primary inputs used to determine the default value.
		When the engine is running, the compression waves in the material of the cylinder block, caused by the violent combustion of the fuel/air mixture within the cylinders, deflect the crystal.
	www.disco2.com /tech/v8ems/inputs.phtml (5714 words)

	PTC Awards: Petrol engine 1.2 HTP
		At present the new engine is line-produced and its parameters are praised by experts and the public.
		This engine has been designed so that no maintenance or replacement of the chain and the chain wheels is required during the service life of the engine.
		The engine is smooth, well balanced and quiet and already complies with EU 4 and can be easily modified to comply with the higher requirements of more stringent legislation.
	www.ptc.com /appserver/it/icm/cda/template_lib/icm01_ptcawards_entry_v.jsp?im_dbkey=6553 (421 words)

	[No title]
		The engines deliver their power to the road either via the front wheels or by means of quattro permanent four-wheel drive.
		The term "petrol direct injection" makes the distinction between this and conventional petrol engines clear: in contrast to indirect injection, the fuel is injected directly into the combustion chamber.
		The engine block is made from GG 25 grey cast iron, a material that exhibits both high pressure resistance and excellent acoustic properties.
	www.audiworld.com /news/04/b7a4/engine/content.shtml (2357 words)

	IAA 2001: FSI - The Direct-Injection Petrol Engine
		Audi is now presenting a new generation of engines that makes a quantum leap in terms of operating efficiency: the FSI principle is opening up a new dimension for the spark-ignition engine.
		After all, the first direct injection petrol engines were built back in the nineteen-fifties, and other manufacturers have made use of similar techniques more recently.
		In the stratified-charge operating mode, fuel is injected on the engine's compression stroke and is picked up by the movement of the air that has been drawn into the combustion chamber.
	www.audiworld.com /news/01/iaa/fsi/content.shtml (628 words)

	JP Oils (UK) Ltd. - for all your lubricant needs...
		Advanced diesel performance engine oil is a high quality part synthetic oil formulated to meet the very latest European specifications for both diesel passenger cars and van engines.
		Super diesel is a high quality engine oil developed for the severe operating conditions of modern engines in passenger cars and vans.
		It is suitable for turbo charged engines, operating under heavy duty conditions, and is formulated to stay in grade even when used for extended drain intervals.
	www.jpoils.co.uk /auto_q8.php (1129 words)

	Steam & Engine of Australia - The 4-Stroke Petrol Engine Simply Explained
		This engine design is more complex mechanically of two and four stroke as it requires synchronisation of moving parts.
		The description "four stroke" comes from the fact that the engine fires (burns fuel) on every second upward stroke (travel of the piston from bottom of the cylinder to the top), thus there are four strokes for every ignition of fuel, two upward and two downward.
		The first stroke moves from top to bottom, where air is drawn in, the first upward stroke compresses the air and fuel is sprayed in, the air and fuel ignite and begin the third stroke where the piston is forced back downwards by the explosive force of the fuel igniting.
	www.steamengine.com.au /ic/engines/simple_engine/petrol-4.html (468 words)

	Engine & fuel engineering - diesel and petrol engine equivalent sizes (Site not responding. Last check: 2007-10-08)
		i.e A 3 liter diesel and petrol are roughly similar, the 2 liter petrol is often equivalent to a 2.2 liter diesel and a 1 liter petrol is often equivalent to a 1.4 liter diesel.
		All I could think of was that a larger petrol engine might have issues regarding the ignition source being one single spark, thus flame front propogation being a limiting factor, whereas a diesel (and I'm just supposing here) can have multiple sources of ignition as the fuel injects.
		Maybe it's because the petrol engined versions of the little cars are already underpowered, so they don't want to give away as much performance by going to diesel, whereas the bigger cars have power to burn and can afford to loose a little.
	www.eng-tips.com /viewthread.cfm?qid=110480&page=1 (1207 words)

	Golf and Bora FSI — Petrol Direct-Injection (Site not responding. Last check: 2007-10-08)
		The pace-setter of this new generation of petrol engines was the first Volkswagen FSI in the Lupo as early as the end of 2000.
		As opposed to conventional petrol engines, the fuel is not injected into the intake manifold, but rather directly into the combustion chamber via electronically controlled injection valves under the inlet channels.
		Since the engine runs with a nearly fully open throttle valve in the stratified lean operation mode, the large throttling losses that conventional petrol engines have when operating with underloads are significantly reduced.
	www.germancarfans.com /news.cfm?NewsID=2020403.001&Page=1 (1343 words)

	A2Z Physics understanding nature
		Petrol engine was first designed by Nicolas OTTO in nineteenth century.
		Construction of Petrol and Diesel Engines are almost same, in Diesel Engine only sparkplug is missing (its not actually missing but not used).
		Due to movement of piston fuel which is mixture of air and petrol enters the cylinder.
	www.angelfire.com /rings/aekansh/pengine.htm (339 words)

	Cranking Amps (Petrol Engine) Waveform
		The amperage required to crank the engine will largely depend on many factors, hese include: the capacity of the engine, the number of cylinders, the viscosity of the oil, the condition of the starter motor, the condition of the starters wiring circuit and the compressions in the cylinders.
		Once the engine is rotating, the current for a typical 4 cylinder petrol engine is in the region of 80 - 200 amps.
		NOTE :- when compression testing a petrol engine it is advisable to isolate the ignition primary circuit to avoid damage to the electronic circuitry.
	www.picotech.com /auto/waveforms/cranking_petrol.html (239 words)

	Steam & Engine of Australia - The 2-Stroke Petrol Engine Simply Explained
		This engine design is the simpler mechanically of two and four stroke as it minimises the number of moving parts which must be kept in sync.
		The description "two stroke" comes from the fact that the engine fires (burns fuel) on every upward stroke (travel of the piston from bottom of the cylinder to the top), thus there are two strokes for every ignition of fuel, and upward and a downward stroke.
		The petrol, oil and air charge within the crank-case is compressed during this stroke in preparation for the next stroke.
	www.steamengine.com.au /ic/engines/simple_engine/petrol-2.html (464 words)

	Engine at opensource encyclopedia (Site not responding. Last check: 2007-10-08)
		In the case of the internal-combustion engine the effect of the engine is rotational torque which can be used to cause motion, generate electricity, pump water or compress gas.
		The word "engine" is also sometimes used to refer to a device that performs a particular task but not "work" in the physical sense.
		A special case is the air engine which is driven by compressed air.
	wiki.tatet.ru /en/Engine.html (261 words)

	MVVS 1.60 petrol engine review (Site not responding. Last check: 2007-10-08)
		Becoming increasingly aware of the MVVS 2.15 Petrol, seeing it around and about the shows in increasing numbers, it was obviously compact and sophisticated and seemed ultra reliable with plenty of power, I was keen to know more.
		Spark ignition petrol engines top the tree in the reliability stakes, but they often carry a huge penalty in weight and bulk and they seldom match their glow brethren in power.
		The piston, cylinder and con-rod assembly is arguably superior to most of the chainsaw derivatives and the crankshaft is a properly supported aeromodelling arrangement with a pair of wide spaced bearings either side of the inlet tract with the front bearing where it needs to be – ie directly behind the propeller driver.
	www.justengines.unseen.org /mv160pr.htm (397 words)

	Dorman 4 Cylinder Petrol Engine Vintage (Site not responding. Last check: 2007-10-08)
		Paxman History Pages - Paxman Diesel Engines Since 1934 - They were built mainly as 4, 6 or 8 cylinder engines for marine and industrial...
		Classic Crawlers: Part 2 - It was powered by a four cylinder petrol/kero Dorman engine which produced its 40 hp at 1200 rpm and the transmission featured a two forward and one reverse...
		The four cylinder petrol engine had an exposed clutch and flywheel and was...
	www.hot-antiques.com /dorman-4-cylinder-petrol-engine-vintage.html (781 words)

	Petrol Engine Oils - Independent Specialists based in London UK
		Sport 5W/40 is suitable for normally aspirated and turbo charged petrol engines and diesel engines in passenger cars and light commercials and is suitable for all driving conditions.
		Ultra 10W/40 is suitable for normally aspirated and turbocharged, highly stressed diesel engines and petrol engines in passenger cars and light commercials particularly modern vehicles.
		Apollo 15W/40 is suitable for normally aspirated and turbo charged highly stressed petrol engines and diesel engines in the passenger cars and heavy commercials, vans, plant, buses and industrial equipment.
	www.neweraoil.net /petrol.htm (978 words)

	Changing a petrol engine for Diesel - Boat Design Forums
		However if you operate you r engine like many of us say 50 hours a year or less then you would be looking at many (10-20) years before any savings in fuel cost.
		The engine people should be able to give you information on expected speed and economy of the package they offer as well as a reference list of happy customers (if not run) you can contact.
		Your engine choices may be limited by the physical properties of you vessel.
	www.boatdesign.net /forum/showthread.php?t=4515 (1745 words)

	Back Room: Diesel oil 10w - 40w in petrol engine
		I agree, it will probably clean the inside of the engine out, and so long as the engine is not caked up with carbon and muck, it will do little harm.
		To also be rated as A3 indicates that this is perfectly acceptable for modern petrol engines also.
		I would be reluctant to use a B4 spec oil in an older petrol engine, but then I wouldn't want to waste my money on fully synth in an older petrol engine, so not really an issue.
	www.honestjohn.co.uk /forum/post?t=18110 (722 words)

	Tool along in a car with petrol engine and electric motor - Deccan Herald (Site not responding. Last check: 2007-10-08)
		Twin, a hybrid car with both petrol engine and electric motor, is on display at the Koramangala indoor stadium in the city at the Automobile Fair, 2004 which began on Saturday.
		It is the first mini vehicle in Japan to feature a hybrid system of a gasoline, petrol engine and an electric motor.
		It converts petrol energy into electric energy while on the move unlike the other electric cars which need to be recharged only when they are parked.
	www.deccanherald.com /deccanherald/apr042004/i3.asp (374 words)

	PUK News: New generation sparkplug leads to revolution in petrol engine ignition systems
		The development of a new generation sparkplug that may lead to a fuel saving in petrol engines proved to be a winner in the innovation competition of the North-West University.
		With this invention of the team of experts at the PUK campus of the North-West University the spark distributor, ignition coil and high-tension cables currently found in petrol engines are made redundant.
		By making use of the "intelligent sparkplug" the timing of car engines no longer has to be set, as the timing will automatically be optimal.
	www.puk.ac.za /nuus/nuus81_e.html (407 words)

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