23 Nov INTRODUCTION The Saint – Hilaire family first patented the Quasiturbine combustion QUASI TURBINE ENGINE There are actually two different. 6 Feb Since the Quasiturbine is a pure expansion engine (which the Wankel is not, neither most of other rotary engines), it is well suitable as. 22 Jun The Quasiturbine, is a new concept (patented 10 years ago), that promises to revolutionize the internal combustion engine. It is said to make.
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Essentially, the combustion cycle pushes a piston up and down, which rotates the drive shaft by way of a crankshaft. See How Rotary Engines Work for more information.
This mechanism has been demonstrated running as a pneumatic engine using stored compressed air, and also as a steam engine.
Instead of using piston like a typical car enginea rotary engine uses a triangular rotor to achieve the combustion cycle. The prototype was turned by an external engine for 40 hours. Unlike vane pumpsin which vane extension is generally important and against which the pressure acts to generate the rotation, the Quasiturbine contour seals have a minimal extension and the rotation does envines result from pressure against these seals.
Energy being proportional to the pressure time the volume, energy is weak after each relaxation even if there is pressure, because volume is contracted and weak, and it is the heating which gives again the volume, and thus of energy These multiple relaxations are profitable quaasiturbine the case of systems of several megawatts with high and constant initial pressure having important operating time ratios, but quasiturbie more difficult to justify in the case of small vehicles asking for a few tens of kW only, where the operating time ratio is half an hour per day, and of which high pressure of the tanks is enginss constant!
This mode allows several advantages:. Assuming that an ambient temperature heat source is always available for free, a gallon of liquid nitrogen contains only 10 to15 times less mechanical energy than a gallon of gasoline, and it is zero pollution! Email Address Email is required.
As an example, a typical bar atm. Air Car compressed air vehicle http: The patent holders have announced that they intend to make similar internal combustion prototypes available for demonstration.
The two-port design with carriages was proposed to make possible a new and superior mode of combustion, termed photo-detonation by the Quasiturbine inventors. This third design combines aspects of the first two. The practice of buying more books than you can read.
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It is however not very wise to use the energy of pressure of high pressure tank to heat the intermediate partially low pressure tank, from where the interest to use multiple mechanical relaxations with heaters isobars between the stages! The Quasiturbine is a compact, low weight and high torque machine with top efficiency, specially in power modulation applications. The chainsaw is not available for sale at this time.
Only the basic rotor geometry is common with the earlier design.
How Quasiturbine Engines Work
From the basic cc per revolution engine bloc, a compressed air prototype has been built making use of 2 parallel expansion circuits of cc per revolution each, for a total of about 14 cubic feet intake per minute at RPM.
However, to produce the power necessary for the propulsion of a vehicle with reasonable Quasiturbine size QT75SCa differential of pressure from 50 to psi is enough. Gas cooling during expansion is not a good thing, because it reduces the pressure in the expansion machines positive displacementand quaxiturbine the gas speed in turbines.
Please help improve it or discuss these issues on the talk page. May Click [show] for important translation instructions. However, ignition with fuel was never achieved. This condition can be achieve by a slight heating solar of the gas before its entry quqsiturbine the pneumatic motor. Please improve it by verifying the claims made and adding inline citations. Usable with intake sustained pressure as low as 20 to 50 psi! Liquid nitrogen is somewhat a reject of the oxygen distillation process, and is consequently relatively affordable.
The Quasiturbine engine, patented inis just such an improvement. Then why having a differential of or psi which require a multi stages relaxation? How Engines Work explains in detail how this works in conventional piston engine.
June Learn how and when to remove this template message. This is why QT is efficient less pressure charging lossesand this is why there is no vane combustion engine.
The Quasiturbine or Qurbine engine is a proposed pistonless rotary engine using a rhomboidal rotor whose sides are hinged at the vertices. Views Read Edit View history. Since the Quasiturbine is a pure expansion engine which the Wankel is not, neither most of other rotary enginesit is well suitable as compressed enginess engine — Air engine or air motor.
If the use of a single machine requires an initial pressure reduction, this initial loss of pressure in a regulator is not converted into mechanical energy, but in thermal cooling and kinetic energy, the last one attenuates obviously adiabatic cooling… Because volumes and displacements in final phase are more important, the same differential of pressure on this level produces more energy at a higher pressure.
See more images of engines. Are you afraid of your car’s engine? Nothing prevents from juxtaposing 3 Quasiturbines of different sizes to do still better!
Sign up now and have it sent straight to your quasiturbind. The driveshaft is connected to various components that pass the rotating motion onto the car’s wheels.
March Learn how and when to remove this template message. As the output efficiency grows quickly with overheat, we propose to use in addition a small burner with propane for example, to overheat gas nitrogen and consequently the Quasiturbine itselfso that temperatures of exhausts after adiabatic cooling become about degrees Celsius or more.
Many other designs are possible within the patented Quasiturbine model, with or without carriages and with differing numbers of ports. Quasiturbine — Comparative efficiency with other engines http: