- QT.6LSC Steam 2 kW
- QT5LSC Steam 12 kW
- QT40L Steam 100 kW
- QT.6LSC Air 2 kW
- QT5LSC Air 12 kW
- QT40LSC Air 100 kW
- QT.6LSC Academic kit
- QT.6LSC Chainsaw
- QT Cut Off Valve
- Internal Combustion?
- Quasiturbine Book
- Go Kart
- Air car
- Air Generator
- UConn-Brash QT Video
- Eole-Tract France
- Engine Problematic
- Detonation engine
- QT concept
- Wankel differences
- Piston differences
- Hybrid differences
- QT Specifics
- Rotary Expander
- Public utility
- QT Notes
- Papers About QT
- More... about engines
The Quasiturbine (Qurbine) is a « Positive Displacement » turbine alternative.
Suitable as a double-circuits Rotary Motor or Expander
for compressed air, steam and other fluids,
or (later) as an advanced Internal Combustion Rotary Engine,
as well as (later) for Compressor of various thermodynamic cycles.
The Quasiturbine is a compact, low weight and high torque machine
with top efficiency, specially in power modulation applications.
The Quasiturbine is a pistonless Rotary Machine
using a deformable rotor whose blades (sides) are hinged at the vertices.
The volume enclosed between the blades of the rotor
and the stator casing provides compression and expansion
in a fashion similar to the familiar Wankel engine,
but the hinging at the edges allows higher compression ratio
and different time dependencies, while suppressing the Wankel rotor dead time,
and this without the complex rotor synchronization gears.
This chainsaw is shown only as a sample of 1.5
kW QT engine application.
The chainsaw is not available for sale at
For optimum efficiency and clean environment
under any load, torque, pressure, flow, power or RPM !
Quasiturbine MOTOR / EXPANDER suitable for AIR / GASES / STEAM
QT5LSC (5 litre displacement)
QT.6LSC (600 cc displacement)
Pressure-flow energy conversion :
+/- 80 % of the perfect « single-stage theoretical expander ».
(Optimum all across the power range - No off-peak penalty)
Quasiturbines Currently Manufactured
(Purchase order form on descriptive pages)
790 US $
(kit assembled and running)
Steam 1.5 kW
Steam 12 kW
8900 US $
Steam 100 kW
For details and prices, see the
« PRODUCTS AVAILABLE » section in the left column.
Air freight available worldwide.
(Custom exempted within North America NAFTA zone).
Engine displacement versus the Total engine volume
4 strokes engine type
15 to 25
1.5 to 5
The Quasiturbine is a positive displacement turbine
with a total displacement near the engine volume
(Imagine one day, a 3 litres car engine into a
3 litres volume!)
Follow us on:
USA at www.qtusa.com
Quasiturbine # 10 of the « very best clean energy technologies » !
Quasiturbine has no vane
Unlike vane pumps, which vane extension is important and against which
the pressure acts to generate the rotation, the Quasiturbine contour seals have an
imperceptible extension and the rotation does not result from pressure against these seals.
Since the cylindrical (or oval) stator of vane devices has a radius of curvature
greater than the rotor, the two surfaces (rotor - stator) cannot reach a close
fit at top dead center (TDC), while the surfaces of both the rotor and stator of
the Quasiturbine fit exactly against one another to produce a high compression
ratio. This is why QT is efficient (less pressure charging losses), and this is why there is no vane combustion engine.
Quasiturbine publishes « efficiency data ».
Quasiturbine Explained Simply
The Quasiturbine at the invention autopsy:
bibliographic overview prior to 2012
Youtube Video Channel
La Quasiturbine est une Machine Rotative à Losange Déformable (MRLD),
Pulswer, MRLD, Ambert, gipa, génissieux