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Topic: Rotary combustion engine

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	Rotary engines (Site not responding. Last check: 2007-11-07)
		Rotary steam engines were first constructed as early as 1588, but it wasn't until the invention of the Otto cycle in 1876 and the production of the automobile in 1896 that the creation of the rotary combustion engine came to be.
		The main difference between a petrol or diesel engines cylinder arrangement and that of a rotary combustion engine, is that the piston directly drives the engine, not transferred through a cam shaft or connecting rods.
		The key to the function of the rotary combustion engine is the gearing that attaches the piston to the eccentric shaft.
	people.bath.ac.uk /en2djl/rotary.htm (828 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 rotary engine, the pressure of combustion is contained in a chamber formed by part of the housing and sealed in by one face of the triangular rotor, which is what the engine uses instead of pistons.
		A rotary engine has an ignition system and a fuel-delivery system that are similar to the ones on piston engines.
	auto.howstuffworks.com /rotary-engine.htm (903 words)

	Stratified charge injection for gas-fueled rotary engines - Patent 5094204
		As is conventional, the engine 10 includes an air intake stroke in chamber portion 22, a compression stroke in chamber 23, a power stroke in chamber portion 24, and an exhaust stroke in chamber portion 26 of the chamber 15.
		The present invention is directed to an engine 10 wherein gaseous fuel is introduced directly into a compression chamber 23 during the compression stroke of the rotary combustion engine 10 after the end of the intake stroke in the chamber portion 22.
		Review of the modeling data indicates that the flow fields within the rotary engine 10 are conducive to fuel stratification and the optimum location for the fuel injector 32 would be at the trailing spark plug location, downstream from the intake port 16 and during the early part of the compression stroke.
	www.freepatentsonline.com /5094204.html (2463 words)

	Pistonless rotary engine - Wikipedia, the free encyclopedia
		A pistonless rotary engine is an internal combustion engine that does not use pistons in the way a reciprocating engine does, but instead uses one or more rotors, sometimes called rotary pistons.
		A rotary engine developed by Texas machinist Frank Turner which was licensed by Malcolm Bricklin for use in place of the V8 powering the Bricklin SV-1 vehicle, but never used.
		In the MYT engine, the rotary pistons are toroid-sections (curved clinders sliding inside the toroidal stator) and connected to either of two inner discs.
	en.wikipedia.org /wiki/Rotary_combustion_engine (1769 words)

	04.02.2001 - UC Berkeley researchers create world's smallest rotary internal combustion engine
		Like the engine in your car, the mini engine produces motion from controlled combustion, which takes place when a fuel such as gasoline is combined with oxygen and a spark in a chamber.
		Combustion acts to further rotate the rotor around the chamber, transferring force to the shaft that is attached to the rotor.
		Called a rotary engine or Wankel engine after its inventor, this engine design has not been as widely used as the piston-style engine found in most automobiles today, although the rotary did appear in the Mazda RX-7 and is reappearing in the concept cars of tomorrow.
	www.berkeley.edu /news/media/releases/2001/04/02_engin.html (693 words)

	History of Rotary Machines
		The rotary combustion engine must not be confused with "rotary" aircraft engines which are piston cylinders arranged in a circle.
		Designs for rotary engines were proposed as early as 1588 by Ramelli, though it took the development of the Otto cycle engine in 1876 and the advent of the automobile in 1896 to set the stage for a proper rotary combustion engine.
		Rotary Power International (RPI) rotary engines (took over from John Deere) are guaranteed for a minimum of 10,000 hours, and most of the OMC engines produced in the mid-1970's are still running today without an overhaul.
	www.freedom-motors.com /history.html (676 words)

	Rotary Engine Technologies Wankel Rotary Engines, Aircraft Engines, Racing Kart Engines
		In the past the rotary engine had somewhat poorer fuel economy and its weight and production cost advantage was not enough for the automotive companies to re-tool their engine and chassis plants to produce it.
		In addition, the emissions from the recreational and small industrial engines were not being addressed because their pollution was not an issue.
		OMC stated that had they produced their rotary engine in similar volumes to their two stroke engines, the cost would have been similar.
	www.rotaryengines.ca /main/compet_adv.htm (587 words)

	TRICE; True Rotating Internal Combustion Engine (Site not responding. Last check: 2007-11-07)
		An engineer from Suffolk in the UK has invented a new rotary engine which could prove twice as efficient as those used in current cars - preserving for longer the world's dwindling oil reserves.
		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)

	Rotary Rocket Combustion Engine
		The power booster can deliver to both twin manifolds on V type engines, and single manifolds on the in line engines and connects to the intake manifold air pressure diagnostic port on each manifold.
		Rotary combustion is the next generation of combustion engines.
		Rotary engines have been on the drawing board for several years now.
	www.compusmart.ab.ca /rprince/BOOSTER.html (861 words)

	Faculty of Engineering, Kingston University Motorcycle Race Team - Technical
		Designs for rotary engines were proposed as early as 1588 by Ramelli, though it took the development of the Otto cycle engine in 1876 and the advent of the automobile in 1896 to set the stage for the modern rotary combustion engine
		The biggest engine produced by Sachs was the 294 cc KM 914, originally intended for use in generators and snowmobiles.
		Although the rotary engine is a relatively straightforward piece of technology, the author would estimate that very few, if any, technicians have had any practical experience of rotary engine maintenance.
	engineering.kingston.ac.uk /motorsport/rces.html (2905 words)

	Rotary Engine Technologies Wankel Rotary Engines, Aircraft Engines, Racing Kart Engines
		In the aircraft industry there are over 700 home-built and ultra-light aircraft types in North America that use engines in the 40 HP, 80 HP, 90, 180 and 240 HP configurations of the Charge Cooled and Oil Cooled rotor rotary combustion engines.
		Rotary combustion engines can be used on co-generation units, which by burning abundant and inexpensive fuels can provide heat and electricity in homes or businesses for lower costs than the utility companies.
		A small, rugged model of the engine, designed to produce from 20 to 65 HP and run for thousands of hours without maintenance, can drive a generator to provide the charge for a few modern storage batteries.
	www.rotaryengines.ca /main/applications.htm (454 words)

	MAU Enterprises - Innovative Rotary Internal Combustion Engine - ME2
		The ME2 is a rotary internal combustion engine with two opposing discs, each having a half-cylindrical chamber located around its perimeter.
		Half of each piston is connected permanently to one rotary disc the other half of the piston slides in the half cylindrical chamber of the opposing disc.
		To make improvements to the piston engine is one thing, to replace it with a completely different design is a 21st century breakthrough.
	www.mauenterprises.com /me2.html (223 words)

	Rotary Internal-Combustion Engines.
		Rotary internal-combustion engine proposals exist in their hundreds, if not their thousands.
		The similarity with the rotary steam engine in the past is hard to ignore, the difference being of course that in this case a rotary engine achieved some success, in the shape of the Wankel, even if if it took a huge amount of development to get there.
		If you have looked at my page on rotary steam engines, you will know that even with steam the problems of sealing and efficiency were severe.
	www.dself.dsl.pipex.com /MUSEUM/POWER/rotaryIC/rotaryIC.htm (811 words)

	THE AUGUSTINE ROTARY ENGINE (Site not responding. Last check: 2007-11-07)
		The Augustine Automatic Rotary Engine Company is the Parent Holding Company, and is the owner of basic patents on both the Augustine Rotary Steam and Gas Engines in the United States and ten leading foreign countries.
		In the Augustine Rotary Engine the power is all applied on leverage, which means more power and greater economy, the reduction of friction, and the elimination of all mechanism, thus reducing the cost of operation as well as the cost of manufacturing, which means greater profit and a saving of practically all the B.T.U's.
		This is especially noticeable when the engine is installed in a car and is throttled down to two miles per hour; then with the slightest touch to the throttle the engine responds and the car moves along at a high rate of speed without the slightest jar or vibration.
	www.gasenginemagazine.com /complete-archive/953 (1082 words)

	Rotary History
		Despite announcing a new 40 hp aircraft engine prototype in 1974, FandS generally stopped producing its rotary engines including the KM 48/K 8 B in 1975-1976--obviously because of the bad publicity the Wankel got after the 1973 oil crunch.
		Soviet research on piston engines to combat knock because of their poor gas is discussed extensively in a recent SAE paper: no. 980117, "On the future of combustion in piston engines".
		Testing was rather extensive, including engines of 1 to 3 rotors, "water and air cooled, compression- and spark-ignition, with a displacement per rotor ranging from 150 to 1500 c.c." In the early '70s "common technical key difficulties" led most researchers to end their work.
	www.rotaryaviation.com /rotaryhistory.htm (5840 words)

	Home
		DeFazio Rotary, Inc. is organized as a corporation of the Commonwealth of Virginia to do research and development so as to demonstrate the new rotary internal combustion engine and to obtain more patents for the rotary engine technology started by Robert "Bob" DeFazio.
		The DeFazio Rotary Engine is somewhat of a missing link between the normal reciprocating engine and a turbine (or jet) engine.
		The DeFazio Rotary Engine is a desirable replacement for every internal combustion engine that is produced and is a more suitable power source for some turbine applications.
	www.defazio-rotary.com (469 words)

	rotary engine — Infoplease.com
		rotary engine, internal-combustion engine whose cycle is similar to that of a piston engine, but which produces rotary motion directly without any conversion from reciprocating motion.
		Although the gas turbine produces rotary motion directly, it is not generally considered a rotary engine because it functions differently.
		turbine - turbine, rotary engine that uses a continuous stream of fluid (gas or liquid) to turn a shaft that...
	www.infoplease.com /ce6/sci/A0842490.html (201 words)

	Talk:Rotary piston engine - Wikipedia, the free encyclopedia
		Logically, since it's the combustion that's rotating around the center of the engine; the engine is not rotating, and in the piston engine the combustion is not rotating.
		Unfortunately, the term rotary piston seems (according to Google) to be used quite often to mean the rotor of a Wankel engine, so rotary piston engine, apart from being historically inaccurate, is misleading in the modern context as well.
		While cleaning up rotary combustion engine, I've started to wonder whether this title may well be a neologism, in which case we need to move this article too, perhaps to rotary piston, which seems unambiguous and widely used as a generic term for rotors similar in concept to the Wankel engine rotor.
	en.wikipedia.org /wiki/Talk:Rotary_piston_engine (2773 words)

	Green Car Congress: Hybrids and Plug-ins: New Opportunities for Rotaries?
		Through the process of these sliding vanes, combustion chambers form between the rotor, stator walls and vanes where the fuel/air mixture is injected, compressed, combusted and exhausted.
		Roadtested in 1960, the engine was used in the Wankel Spider in 1964.
		Rotary Combustion Engines, with their higher power for a given engine density, are an interesting prospect for hybrid applications.
	www.greencarcongress.com /2005/05/hybrids_and_plu.html (1542 words)

	04.10.2001 - Engineers create world’s smallest rotary internal combustion engine
		Berkeley engineers have created the world’s smallest combustion engine, which is slightly larger than a penny.
		Fashioned from steel, the engine is also a prototype for a Berkeley endeavor to create an even smaller engine chemically etched from silicon.
		Called a rotary engine or Wankel engine after its inventor, this design has not been as widely used as the piston-style engine found in most cars today, although it did appear in some models of the Mazda RX-7 and is reappearing in the concept cars of tomorrow.
	www.berkeley.edu /news/berkeleyan/2001/04/10_cmbus.html (568 words)

	The Wankel Engine
		Traditional internal combustion engines operate on a principle of pistons moving up and down, where the combustion drives the piston down, and adjoining pistons are out of phase with one another, with the expansion of one piston driving the compression of another, and so forth.
		The main advantage of the Wankel engine is that its power-to-weight ratio is approximately half that of a conventional piston engine, due to the comparative paucity of parts.
		A second problem is that, in their basic design, Wankel engines are less fuel-efficent than piston engines, due to the shape of the combustion chamber (long instead of small and concentrated), and also as a consequence dirtier than traditional engines.
	engin.swarthmore.edu /~nlaport1/wankel.html (1547 words)

	Internal Rocket Rotary Combustion (IRRC/IRRCE) Engine
		For the record, the IRRCE combustion cycle can efficiently consume all of 90% out of every power stroke, as opposed to the 10% worth of a two-cycle diesel and a mere 5% of the four-cycle engine if you include the fact that there an entire exhaust stroke being wasted.
		The 7.25:1 combustion is relatively clean, thus engine wear and tear factors are minimized.
		Under good conditions and using the best of diesel engine engineering, it's possible to obtain a maximum usable shaft energy of 15.5 kw per gallon (3.7854 L or 3.22 kg) of diesel No.2, that's roughly a maximum usable shaft horse power of 21 per 3.22 kg/hr.
	guthvenus.tripod.com /gv-hybrid-irc.htm (3059 words)

	HOW THE AUGUSTINE ROTARY INTERNAL COMBUSTION ENGINE OPERATES (Site not responding. Last check: 2007-11-07)
		As the Engine rotates the exhaust ports open first, followed immediately by the inlet ports, which get a full blast of dry gas under pressure and drives all the burnt gasses at high speed out of the exhaust and constitutes a one hundred percent scavenging.
		The Engine has been examined by hundreds of expert engineers who have pronounced it the most wonderful power producer in the world, and the demand for it ha been enormous ever since the first engine was completed.
		This is the standard engine of the day and has been adopted by all the large motor manufacturers as the best and most economical type.
	www.gasenginemagazine.com /complete-archive/954 (786 words)

	internal-combustion engine: Rotary Engines
		Developed by the German engineer Felix Wankel in 1956, it has a disk that looks like a triangle with bulging sides rotating inside a cylinder shaped like a figure eight with a thick waist.
		Another advantage is that higher engine speeds are made possible by rotating instead of reciprocating motion, but this advantage is partially offset by the lack of torque at low speeds, leading to greater fuel consumption.
		Efficiency of today's internal combustion engines continues to improve, while pollution and cost continue to drop....
	www.infoplease.com /ce6/sci/A0858858.html (278 words)

	Wankel Rotary Engines: Annotated List (Site not responding. Last check: 2007-11-07)
		At the end there is a claim that the rotary engine is prone to dieseling, something I have not read anywhere else and which is contrary to my own experience.
		Here are some rotary engines other than Wankels that can be grouped as the Rand Cam and miscellaneous.
		The Cir-Com Goodman Circular Rotary Engine was invented by William A. Goodman who was awarded patent 5,036,809 on Aug. 6, 1991, which he assigned to Cir-Com Development Corporation.
	www.millville.org /workshops_f/kess_mech/tools/1tools/annotated.html (1737 words)

	Kra-Car: Two-process rotary internal combustion engine
		Internal combustion engines are thermal engines that convert thermal energy into mechanical work.
		Engines based on fuel cell technology are currently still in development and are at the moment only capable of providing enough energy for basic movement of vehicles.
		Such a process occurring in rotary mechanical configuration enables more than a DOUBLE AMOUNT OF USEFUL WORK to be gained from the same volume with the same quantity of the injected fuel as compared to the conventional Otto, Diesel or Sabathe engine process.
	www.inet.hr /~bkrajnov/eng_intro.html (403 words)

	Lab Notes: Research from the Berkeley College of Engineering
		Mechanical engineers at UC Berkeley's Combustion Processes Laboratories have built the world's smallest rotary internal combustion engine.
		The mini-engine is only the first step toward development of a "micro-engine" the size of a single letter on a penny, fashioned in a process similar to the way microprocessors are etched from silicon.
		And thanks to the high energy density of liquid hydrocarbon fuel, the new engine will weigh the same as a traditional battery found in a mobile phone or digital camera, while running ten times longer before needing a fill-up.
	www.coe.berkeley.edu /labnotes/0701worldssmallest.html (321 words)

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