Rotor (engine) - Factbites

Rotor (engine) - Factbites
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Topic: Rotor (engine)

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	Wankel engine - Wikipedia, the free encyclopedia
		The largest Wankel engine was built by Ingersoll-Rand; available in 550 hp (410 kW) one rotor and 1100 hp (820 kW) two rotor versions, displacing 41 liters per rotor with a rotor approximately one meter in diameter, it was available between 1975 and 1985.
		Thus, power output of a Wankel engine is generally higher than that of a four-stroke piston engine of similar engine displacement in a similar state of tune, and higher than that of a four-stroke piston engine of similar physical dimensions and weight.
		In the Wankel engine, the four strokes of a typical Otto cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston engine.
	en.wikipedia.org /wiki/Wankel_engine (2846 words)

	The Invention Of The Helicopter
		The R-5 was a tandem-seat helicopter with a 450 horsepower Pratt and Whitney R-985-AN-5 Wasp Junior engine, a larger rotor, a glassed-in cockpit, and all-metal construction.
		Von Doblhoff's designs used a piston engine to compress air, which was pumped to the rotor tips through pipes, and then mixed with fuel in a small combustion chamber in the rotor tips to create a fast gas jet.
		The "Fa-284" was an enlarged Fa-224 with twin piston engines, and was intended to be a "flying crane" to lift heavy loads slung underneath.
	www.faqs.org /docs/air/avheli.html (2846 words)

	WANKEL ENGINE FACTS AND INFORMATION
		The largest Wankel engine was built by Ingersoll-Rand; available in 550 horsepower (410 kW) one rotor and 1100 horsepower (820 kW) two rotor versions, displacing 41 liters per rotor with a rotor approximately one meter in diameter, it was available between 1975 and 1985.
		Thus, power output of a Wankel engine is generally higher than that of a four-stroke piston engine of similar engine_displacement in a similar state of tune, and higher than that of a four-stroke piston engine of similar physical dimensions and weight.
		In the Wankel engine, the four strokes of a typical Otto_cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston_engine.
	www.witwik.com /Wankel_engine (2323 words)

	Rotory Steam Engine
		In a Wankel type engine the effective clearance or compression is function of the K factor, rotor radius (distance from an apex to the rotor center)/eccentric (crank throw), and rotor dome.
		Steam engines use cutoff, the practice of admitting steam for part of the stroke and expanding over the remaining portion, to control the torque of the engine.
		The Wankel is a displacement engine that the steam passes through with no reversal in direction (uniflow) and the exhaust is from max displacement to min.
	ghlin2.greenhills.net /~apatter/wankel.html (446 words)

	Rotory Steam Engine
		In a Wankel type engine the effective clearance or compression is function of the K factor, rotor radius (distance from an apex to the rotor center)/eccentric (crank throw), and rotor dome.
		The Wankel is a displacement engine that the steam passes through with no reversal in direction (uniflow) and the exhaust is from max displacement to min.
		Steam engines use cutoff, the practice of admitting steam for part of the stroke and expanding over the remaining portion, to control the torque of the engine.
	ghlin2.greenhills.net /~apatter/wankel.html (446 words)

	The Wankel Rotary Engine
		The only disadvantages of the Wankel Engine are the higher emissions and low compression ratios that come from the long combustion chamber and the ineffective seals of the rotor points to the housing surfaces.
		Each face of the rotor has a pocket to increase the displacement of each chamber, and the intake and exhaust ports don’t need valves, and are simply openings in each end piece that contains the rotor within the housing.
		The Wankel Rotary Engine is a wonderfully logical redesign of the conventional internal combustion engine.
	www.e-scoot.com /2001/dea/WankelRotaryEngine.html (768 words)

	Rotory Steam Engine
		In a Wankel type engine the effective clearance or compression is function of the K factor, rotor radius (distance from an apex to the rotor center)/eccentric (crank throw), and rotor dome.
		The Wankel is a displacement engine that the steam passes through with no reversal in direction (uniflow) and the exhaust is from max displacement to min.
		Steam engines use cutoff, the practice of admitting steam for part of the stroke and expanding over the remaining portion, to control the torque of the engine.
	ghlin2.greenhills.net /~apatter/wankel.html (446 words)

	Mazda Wankel engine - Wikipedia, the free encyclopedia
		The most prominant 4-rotor engine from Mazda was used exclusively for various Mazda-built GT cars (including the 767 and 787B) in replacement of the older 13J.
		Wankel engines can be classified by their rotor size in terms of width (diameter) and depth (thickness).
		Mazda was fully committed to the Wankel engine just as the energy crisis of the 1970s struck.
	en.wikipedia.org /wiki/Mazda_Wankel_engine (2204 words)

	Wankel engine - Wikipedia, the free encyclopedia
		Mazda is the only team from outside Western Europe or the United States to have won Le Mans outright and the only non-piston engine ever to win Le Mans, which the company accomplished in 1991 with their four-rotor 787B (2622 cc actual displacement, rated by FIA formula at 4708 cc).
		Since the Wankel output shaft is geared to spin at three times the rotor speed, this becomes one combustion 'stroke' per output shaft revolution per rotor, twice as many as the four-stroke piston engine, and similar to the output of a two stroke cycle engine.
		In the Wankel engine, the four strokes of a typical Otto cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston engine.
	en.wikipedia.org /wiki/Wankel_engine (2716 words)

	Technology: Tilt-Body
		Tilt-rotors of necessity have transmissions crisscrossing the wing: having the engine in the fuselage obviously means transmissions to the tip rotor assemblies; and separate engines in each tip rotor need to be interlocked so that one engine can power both rotors in the event of engine failure.
		The tip rotor assemblies themselves must be geared to tilt 90 to effect transitions into and out of horizontal flight.
		Its two wingtip rotors tilt forward for level flight and upward for vertical or near-vertical flight.
	www.freewing.com /advantages.html (2716 words)

	The Wankel Rotary Engine
		The only disadvantages of the Wankel Engine are the higher emissions and low compression ratios that come from the long combustion chamber and the ineffective seals of the rotor points to the housing surfaces.
		The Wankel Rotary Engine is a wonderfully logical redesign of the conventional internal combustion engine.
		Mazda now has plans in the works to release another iteration of this vehicle, the RX-8, also with a Wankel RC engine at the heart of it.
	www.maxmatic.com /e-scoot/2001/dea/WankelRotaryEngine.html (768 words)

	Wankel Rotary Engines - Encyclopedia Entry
		The major problems with Wankels-- or rotary engines, as they are often called -- has been their low fuel efficiency [solved] and the difficulty of designing engines of larger than two-rotor capacity [false].
		The engine is unique in that the power impulse is spread over approximately 270 degrees of crankshaft rotation, as compared to 180 degrees for the conventional reciprocating two-stroke engine.
		Wankel engines, most of which are liquid-cooled, are capable of running at unusually high speeds for long periods of time.
	www.monito.com /wankel/encyclo.html (768 words)

	Rotary Search Engine - rotary engines
		Excerpt:...Wankel Home Recent RCE Theory and Design The RCE Rotor Moves Inside an Epitrochoid Curve A Rotary Combustion Engine (RCE) as invented by Felix Wankel and developed by Walter Froede differs from a Piston Engine in four......stage for a proper rotary combustion engine.
		Excerpt:...Wankel Home Mercedes The Rotary Engined Chevrolet Corvettes In 1970, Chevrolet obtained a licence for the Wankel RCE from NSU and began building a two-rotor and a four-rotor Corvette [1, 2].
		The first truly functional Wankel rotary engine was a DKM type that ran in February 1957.
	www.rotary-search-engine.com /qry/rotary+engines/st-6588 (768 words)

	AREN
		Guru Racing turbo 4 rotor Peripheral Port engine.
		35 MPG RX8 TWO AND ONE HALF ROTOR TURBO COMPOUND ENGINE
		The Increadable Rotary Engine by Paul Lamar.Article published by EAA Sport Aviation magazine.
	www.rotaryeng.net (437 words)

	Canard Rotor/Wing begins flight testing
		During rotary-wing flight, the engine’s exhaust is diverted by the reaction drive system through the rotor system to exit through small nozzles in the rotor tips.
		It is propelled by a conventional turbofan engine combined with Boeing’s reaction drive rotor system.
		This is because the CRW’s rotor is designed not only to spin during vertical takeoffs and landings but also to stop turning during flight and convert to a fixed wing for high-speed cruise.
	www.uavworld.com /_disc1/000000e6.htm (449 words)

	Mazda Wankel engine - Wikipedia, the free encyclopedia
		Wankel engines can be classified by their rotor size in terms of width (diameter) and depth (thickness).
		The most prominent 4-rotor engine from Mazda was used exclusively for various Mazda-built GT cars (including the 767 and 787B) in replacement of the older 13J.
		The ultimate 12A engine was the turbocharged and fuel injected engine used in the Japan-spec Cosmo, Luce, and RX-7.
	en.wikipedia.org /wiki/Mazda_Wankel_engine (2201 words)

	Wankel engine - Wikipedia, the free encyclopedia
		Since the Wankel output shaft is geared to spin at three times the rotor speed, this becomes one combustion 'stroke' per output shaft revolution per rotor, twice as many as the four-stroke piston engine, and similar to the output of a two stroke cycle engine.
		In the Wankel engine, the four strokes of a typical Otto cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston engine.
		Thus, power output of a Wankel engine is generally higher than that of a four-stroke piston engine of similar engine displacement in a similar state of tune, and higher than that of a four-stroke piston engine of similar physical dimensions and weight.
	en.wikipedia.org /wiki/Wankel_engine (2846 words)

	RepairNation.com - Automotive Encyclopedia: F
		A mechanical pump is mounted to the engine and uses a lever that reciprocates from a rotating cam (on the camshaft).
		When the brakes are applied, the caliper slides laterally in a groove to apply pressure to both sides of a brake rotor.
		A disc brake caliper that remains stationary relative to the brake rotor.
	www.repairnation.com /automotive_encyclopedia/page_f.htm (5024 words)

	Encyclopedia: Wankel rotary engine
		Since the Wankel output shaft is geared to spin at three times the rotor speed, this becomes one combustion 'stroke' per output shaft revolution per rotor, twice as many as the four-stroke piston engine, and similar to the output of a two stroke cycle engine.
		In the Wankel engine, the four strokes of a typical Otto cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston engine.
		Thus, power output of a Wankel engine is generally higher than that of a four-stroke engine of similar engine displacement in a similar state of tune, and higher than an engine of similar physical dimensions.
	www.nationmaster.com /encyclopedia/Wankel-rotary-engine (1588 words)

	Orbital engine - Wikipedia, the free encyclopedia
		It differs from the conceptually similar Wankel engine by using a shaped rotor that rolls around the interior of the engine, rather than having a trilobular rotor that spins "in place".
		The orbital engine was invented in 1972 by Ralph Sarich, an engineer from Perth, Australia, who worked on the concept for years without ever producing a production engine.
		An orbital engine is a type of internal combustion engine, featuring rotary rather than reciprocating motion of its internal parts.
	en.wikipedia.org /wiki/orbital_engine (299 words)

	Why QT is not a Wankel engine
		In a piston engine, the "cylinder head" is fix and does not move during the piston stroke, so that the residual minimum chamber volume at TDC (this exclude the chamber cut inside the rotor surface) is part of the relaxation volume during the complete stroke, and do not vary.
		Since the main Wankel engine shaft rotates at three times its rotor speed, it is not suitable for low RPM compressors or pumps.
		The Wankel engine is based on the principle of volume variation between a curve and a moving cord (a sliding single piston-object on the curve).
	quasiturbine.promci.qc.ca /QTpasWankel.html (4104 words)

	Cylinder Head
		A supercharger is engine driven, and the compressor can be an impeller, as in the turbo, but more often is either a Rootes type rotor or a screw type rotor, both of which function better at lower speeds than the impeller.
		At high delivery rates, they raise the effective compression ratio of the engine, increasing the likelihood of detonation, so the engine compression ratio is lowered to compensate, but when the engine is at low speeds (off boost), this lowered compression ratio causes low power.
		Following the principle that more is better, then even more is even better, many engines have been fitted with a cam that is so unsuited to the engine standard and use that it renders the engine unusable for daily use.
	www.alfaboxertuning.fws1.com (4104 words)

	The Wankel Engine
		The inside rotor is designed to fit inside the bore in such a way that the minimum volume between the rotor and the bore is as small as possible, while the maximum volume is as large as possible while still maintaining a proper compression ratio [1] between the two volumes.
		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.
		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.
	www.engin.swarthmore.edu /~nlaport1/wankel.html (1547 words)

	Marc's NSU Car Pages: The Wankel Engine
		Dr. Wankel experimented his first rotary engine in NSU, which eliminated the imperfect eccentric movement of rotor by a revolving housing which was held by another housing.
		Two rotors output 115hp smoothly, but quickly was found to be indurable.
		Secondly, it uses less components - a 2-rotor Wankel engine equivalent to conventional 6 cylinders, then no valves, no rocker arms, no camshaft, no crankshaft and connecting rods, it could be smaller, lighter and simpler than piston engine.
	www.geocities.com /MotorCity/2529/wankel.html (467 words)

	Wankel engine - Wikipedia, the free encyclopedia
		Since the Wankel output shaft is geared to spin at three times the rotor speed, this becomes one combustion 'stroke' per output shaft revolution per rotor, twice as many as the four-stroke piston engine, and similar to the output of a two stroke cycle engine.
		Wankel first conceived his rotary engine in 1924 and finally received a patent for it in 1929.
		Wankel engines have several major advantages over reciprocating piston designs besides the higher output for similar displacement and physical size.
	en.wikipedia.org /wiki/Wankel_engine (467 words)

	Why QT is not a Wankel engine
		In a piston engine, the "cylinder head" is fix and does not move during the piston stroke, so that the residual minimum chamber volume at TDC (this exclude the chamber cut inside the rotor surface) is part of the relaxation volume during the complete stroke, and do not vary.
		Since the main Wankel engine shaft rotates at three times its rotor speed, it is not suitable for low RPM compressors or pumps.
		The Wankel engine is a "rotating piston engine" that is subject to a constant circular vibration.
	quasiturbine.promci.qc.ca /QTpasWankel.html (467 words)

	Technologies In Stock: VESELOVSKY Rotary-Piston Engine
		The Veselovsky engine is the type of rotary-piston internal combustion engine with the planetary movement of the rotor-piston.
		On the contrary the gas-exchange windows of th e Veselovsky engine are located at the periphery of the elliptical rotary-piston and follow ("track") the zones of pressure changes.
		It is generally recognized that Wankel-type rotary engines possess a number of essential drawbacks that hinder considerably its practical applications.
	www.machaon.ru /tetra/veselo.htm (467 words)

	Mazda Wankel engine - Wikipedia, the free encyclopedia
		The most prominant 4-rotor engine from Mazda was used exclusively for various Mazda-built GT cars (including the 767 and 787B) in replacement of the older 13J.
		This was the only production Mazda Wankel with different rotor dimensions: Diameter was 120 mm (4.7 in) and offset was 17.5 mm (0.7 in), but depth remained the same as the 10A at 60 mm (2.4 in).
		Mazda was fully committed to the Wankel engine just as the energy crisis of the 1970s struck.
	en.wikipedia.org /wiki/10A (467 words)

	Wankel engine - Wikipedia, the free encyclopedia
		Since the Wankel output shaft is geared to spin at three times the rotor speed, this becomes one combustion 'stroke' per output shaft revolution per rotor, twice as many as the four-stroke piston engine, and similar to the output of a two stroke cycle engine.
		In the Wankel engine, the four strokes of a typical Otto cycle engine are arranged sequentially around an oval, unlike the reciprocating motion of a piston engine.
		Thus, power output of a Wankel engine is generally higher than that of a four-stroke piston engine of similar engine displacement in a similar state of tune, and higher than that of a four-stroke piston engine of similar physical dimensions and weight.
	en.wikipedia.org /wiki/Wankel_engine (467 words)

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Topic: Rotor (engine)

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