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Topic: Quasiturbine


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In the News (Thu 18 Apr 19)

  
  www.quasiturbine.com - English
In their book about the Quasiturbine, the inventors have used a set of 14 engine parameters to show than none of the modern engine meets simultaneously all the optimum general demanding criteria.
The Quasiturbine (Qurbine) or Kyotoengine is a pressure driven continuous torque deformable spinning wheel; a no crankshaft rotary engine having a 4 faces articulated rotor with a free and accessible center, rotating without vibration nor dead time, and producing a strong torque at low RPM under a variety of modes and fuels.
Because the Quasiturbine does not require the pressure energy to be converted into the intermediary form of kinetic energy, it has numerous advantages over the conventional turbines, including on the efficiency at all regimes.
www.quasiturbine.com   (2030 words)

  
  cars - Quasiturbine
Definition : The Quasiturbine (Qurbine) is a no crankshaft rotary engine having a 4 faces articulated rotor with a free and accessible centre, rotating without vibration nor dead time, and producing a strong torque at low RPM under a variety of modes and fuels.
The design of the Quasiturbine engine is typically built of aluminum and cast iron which expand and contract by different degrees when exposed to heat leading to some incidence of leakage.
The Quasiturbine was conceived by a group of 4 researchers lead by Dr. Gilles Saint-Hilaire, a thermonuclear physicist.
www.carluvers.com /cars/Quasiturbine   (1534 words)

  
 Quasiturbine
In the Quasiturbine engine, the four strokes of a typical cycle de Beau de Rochas (Otto cycle) are arranged sequentially around a near oval, unlike the reciprocating motion of a piston engine.
The design of the Quasiturbine engine is typically built of aluminum and cast iron which expand and contract by different degrees when exposed to heat led to some incidences of leakage.
The Quasiturbine's high power-to-weight ratio makes it exceptionally suitable for aircraft engine and its no-vibration attributes make it suitable for use in, for example: chainsaws, powered parachutes or snowmobiles.
www.mcfly.org /en/Quasiturbine   (1526 words)

  
 gizmag Article: Quasiturbine tech promises engine paradigm shift
The Quasiturbine looks at first like a rotary engine with a deformable rotor made of four identical blades, but because it has no crankshaft and does not follow sinusoidal motion, it has properties far different from the piston and the Wankel rotary piston engine.
Because it was conceived for thermal and photonic ignition, the Quasiturbine cannot be considered as a "rotary piston engine", nor be correctly characterised by the piston paradigms.
The Quasiturbine's power stroke is somewhat longer "with early and late mechanical energy conversion" and the exhaust somewhat cooler, which also implies a more efficient engine.
gizmag.com /go/3501   (744 words)

  
 trinituner.com ::: View topic - Quasiturbine engine.
The quasiturbine concept resulted from research that began with an intense evaluation of all engine concepts to note advantages, disadvantages and opportunities for improvement.
Quasiturbine engines with carriages work on the same basic idea as this simple design, with added design modifications that allow for photo-detonation.
The quasiturbine engine overcomes this problem with a combustion chamber that is 30 percent less elongated.
forums.trinituner.com /forums/archive/quasiturbine-engine-55391.htm   (2127 words)

  
 quasiturbine
Why are the quasiturbines not busting into the market because from the descriptions I read on the net, they offer huge advantages over other engine types.
For this quasiturbine, there is no real sealing mechanism - the seal is accomplished by minimizing the gap which must change due to thermal gradients in the engine.
The wiki article says that leakage problems encountered in the quasiturbine are similar to those encountered in early Wankel Engines but they have been brought under control.
physicsforums.com /showthread.php?t=85020   (709 words)

  
 The Steam-Powered Quasiturbine in Direct-Drive Railway Propulsion   (Site not responding. Last check: 2007-10-24)
The compact size of the quasiturbine allows it to be mounted in the same locations as locomotive electric traction motors, that is, in the trucks (bogies) and driving powered axles through reduction gearing.
The superior leverage capability of the quasiturbine, combined with the separation of inlet and exhaust, will enable it to match the efficiency of a compound expansion steam engine, while using the simplicity of a single expansion system.
The compact size of the quasiturbine allows for a modern 4-axle or 6-axle diesel locomotive to serve as the basis for a modern steam locomotive.
www.messiaen.demon.co.uk /trains/newsteam/modern23.htm   (1076 words)

  
 Quasiturbine - Wikipedia, the free encyclopedia
Patents for the Quasiturbine are held by the Saint-Hilaire family of Quebec.
The earliest Quasiturbine design used a three-wheeled carriage (French chariot, hence avec chariots or AC for with carriages) to support each vertex of the rotor.
At the same time, the ports were duplicated on the opposite side of the housing, thus converting the operation from four strokes per cycle to two and doubling the number of cycles per rotor revolution.
en.wikipedia.org /wiki/Quasiturbine   (1060 words)

  
 Future Energies
The Quasiturbine is a concept which improves the conventional engines in 2 ways : in reducing the dead time, and in making better time management in the engine strokes.
With the Quasiturbine, dead time is reduced to an effective zero.
Gas turbines have a compression turbine and a power turbine; the Quasiturbine results from a research aiming at unifying those two turbines into one entity (blades of which work alternatively as a compression turbine and a power turbine).
www.futureenergies.com /print.php?sid=32   (508 words)

  
 Quasiturbine Engine: Saves gas, runs on any fuel by Irani. Instablogs Community
Quasiturbine Engine: Saves gas, runs on any fuel by Irani.
Quasiturbine Engine: Saves gas, runs on any fuel
The quasiturbine engine promises to make internal combustion better.
www.instablogs.com /entry/quasiturbine-engine-saves-gas-runs-on-any-fuel   (104 words)

  
 Vision Engineer - Quasiturbine: Photo-Detonation Engine for Optimum Environmental Benefits   (Site not responding. Last check: 2007-10-24)
If few experts still expected fuel cell major improvement, the photo-detonation in internal combustion engine is also a major expected breakthrough which could save half the fuel now consumed by gasoline vehicles, with substantial other environmental benefits.
This is where the Quasiturbine engine comes in as a new strategic solution for transportation, energy and the environment.
The Quasiturbine has the potential to be an oil free engine as required by hydrogen of the future.
www.visionengineer.com /mech/quasiturbine.php   (902 words)

  
 Quasiturbine - Wikipédia
Dans le moteur Quasiturbine, les quatre temps d'un cycle Beau de Rochas (Cycle Otto) typiques sont distribués séquentiellement autour d'un quasi-ovale, à la différence du mouvement alternatif du moteur à piston.
Puisque la Quasiturbine n'a pas de vilebrequin, les variations de volume interne ne suivent pas nécessairement le mouvement sinusoïdal habituel des moteurs, ce qui lui confère des caractéristiques très différentes de celles du piston ou du moteur Wankel.
Puisque la Quasiturbine n'a aucun vilebrequin et peut avoir des chariots, l'impulsion de volume peut être mise en forme suivant la lettre cursive minuscule « i », avec une durée au sommet de 15 à 30 fois plus brève que l’impulsion du Wankel ou du piston, et avec une rampe linéaire rapide de montée et de descente.
fr.wikipedia.org /wiki/Quasiturbine   (1347 words)

  
 Quasiturbine tech promises engine paradigm shift - gizmag Article
The Quasiturbine looks at first like a rotary engine with a deformable rotor made of four identical blades, but because it has no crankshaft and does not follow sinusoidal motion, it has properties far different from the piston and the Wankel rotary piston engine.
Because it was conceived for thermal and photonic ignition, the Quasiturbine cannot be considered as a "rotary piston engine", nor be correctly characterised by the piston paradigms.
The Quasiturbine's power stroke is somewhat longer "with early and late mechanical energy conversion" and the exhaust somewhat cooler, which also implies a more efficient engine.
www.gizmag.com /go/3501   (914 words)

  
 Talk Energy | A White Paper on Quasiturbine Technology   (Site not responding. Last check: 2007-10-24)
Gilles writes "Definition : The Quasiturbine (Qurbine) is a no crankshaft rotary engine having a 4 faces articulated rotor with a free and accessible centre, rotating without vibration nor dead time, and producing a strong torque at low RPM under a variety of modes and fuels.
However, in addition to the Otto internal combustion mode Quasiturbine, Saint-Hilaire expects a rapid development of the photo-detonation Quasiturbine in the next 5 years, taking full advantage of its unique short and fast linear ramp pressure pulsed properties (This "knocking" mode is almost impossible for the sinusoidal crankshaft piston engine to tolerate).
Such a photo-detonation Quasiturbine, notes Saint-Hilaire, "would have very little low-power-efficiency-penalty, would be more environment friendly as it would require low octane additive-free gasoline or diesel fuel, would be multi-fuel compatible, including direct hydrogen combustion, and would offer a drastic reduction in the overall propulsion system weight, size, maintenance and cost".
www.talkenergy.com /article.pl?sid=04/08/27/182224&tid=32&menu=tgim   (1057 words)

  
 Howstuffworks "Photo-detonation and Quasiturbine Engines"
The Quasiturbine concept resulted from research that began with an intense evaluation of all engine concepts to note advantages, disadvantages and opportunities for improvement.
But instead of three blades, the Quasiturbine rotor has four elements chained together, with combustion chambers located between each element and the walls of the housing.
Quasiturbine engines with carriages work on the same basic idea as this simple design, with added design modifications that allow for photo-detonation.
auto.howstuffworks.com /quasiturbine1.htm   (784 words)

  
 The Quasiturbine Paradigm Shift
The Quasiturbine looks at first like a rotary engine with a deformable rotor made of four identical blades, but because it has no crankshaft and does not follow sinusoidal volume motion, it has properties far different from the piston and the Wankel rotary piston engine.
The Quasiturbine offers the potential for significant increases in fuel efficiency due to several factors, including: virtually complete combustion of the fuel/air charge, high compression ratios, early and late mechanical conversion, absence of peripheral accessories like camshaft, and more.
In fact, cost reduction is so important in transportation that even if Quasiturbine had a significantly higher cost (which is not the case), the fuel saving over the life of the vehicle would make the Quasiturbine engine a standard feature.
www.americanantigravity.com /articles/529/1/The-Quasiturbine-Paradigm-Shift/Page1.html   (384 words)

  
 New Engine - Quasiturbine - Ford Australia Forums.com
The Quasiturbine is a no crankshaft rotary engine having a 4 faces articulated rotor with a free and accessible center, rotating without vibration nor dead time, and producing a strong torque at low RPM under a variety of modes and fuels.
The Quasiturbine can also be used as air motor, steam engine, Stirling engine, compressor and pump.
The Quasiturbine is at the crossroad of the 3 modern engines: Inspired by the turbine,
www.fordaustraliaforums.com /forum/showthread.php?t=13223   (456 words)

  
 Hugg / Quasiturbine - A New Approach   (Site not responding. Last check: 2007-10-24)
The Quasiturbine (Qurbine) is a no crankshaft rotary engine having a 4 faces articulated rotor with a free and accessible center, rotating without vibration nor dead time, and producing a strong torque at low RPM under a variety of modes and fuels.
The Quasiturbine can also be used as --air motor, steam engine, Stirling engine, compressor and pump--.
The Quasiturbine is at the crossroad of the 3 modern engines: Inspired by the turbine, it perfects the piston, and improves upon the Wankel.
www.hugg.com /story/Quasiturbine--New-Approach   (293 words)

  
 The Quasiturbine: Promising To Revolutionize Engines (TreeHugger)
The Quasiturbine, is a new concept (patented 10 years ago), that promises to revolutionize the internal combustion engine.
The Quasiturbine or Qurbine engine is a pistonless rotary engine using a four-sided rhomboid rotor whose sides are hinged at the vertices.
On the subject of quasiturbines, there is something significant about why a prototype has never been made during all the ten years the notion has been in view.
www.treehugger.com /files/2006/06/the_quasiturbin.php   (2308 words)

  
 Quasiturbine Engine - SciForums.com
The Quasiturbine rotor orientation forces come from the four carriages (AC with carriages) or from the cylindrical pads (SC without carriage), but never from the contour seals themselves.
In the Quasiturbine, the seals roles are only dedicated to sealing the chambers, and they are differential in positioning, which increases the engine live time.
The Quasiturbine appears to be a definite improvement on the wankle as it has 4 combustions per rev. rather than 3.
www.sciforums.com /showthread.php?s=&threadid=18243   (1256 words)

  
 Quasiturbine - The Home Shop Machinist & Machinist's Workshop BBS
The quasiturbine seems interesting, but I think it's a little silly to claim they can extract power without a crankshaft.
I always thought that one reason the Wankel is not as fuel efficient is that the power is extracted from a "glancing blow", rather than the "dead on" configuration of a piston engine.
The quasiturbine web site showed pictures of this engine mounted in a compact car but no video of the car moving under its own power.
www.homeshopmachinist.net /bbs/showthread.php?t=13750   (1194 words)

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