The document describes the Quasi Turbine engine, a proposed pistonless rotary engine. It has a rhomboidal rotor with hinged sides that allow for increased compression and expansion ratios compared to the Wankel engine. The Quasi Turbine has fewer parts than pistons engines, is more efficient, produces high torque at low RPM, and has potential applications in aviation, power tools, vehicles and pumps due to its compact size, lack of vibration, and mechanical simplicity. The engine works through intake, compression, combustion and exhaust cycles without the use of pistons or crankshafts.

1. QUASI TURBINE ENGINE
THE NEXT GENERATION ROTARY ENGINES
Presentation By-
Mohamed Aslam T A
AERONAUTICAL DEPT

2. INTRODUCTION
The Quasiturbine or Qurbine engine is
a proposed pistonless rotary engine
using a rhomboidal rotor whose sides
are hinged at the vertices.
Invented by group of 4 researchers,
leaded by Dr. Gilles Saint-Hilaire
Patented in 1996

3. ROTARY ENGINES(WANKEL ENGINE)
•Very slow combustions
•Has problems in rotor sealing
•High emissions-pollution
•Less fuel efficiency

4. WHAT IS QUASI TURBINE
• The Quasi turbine engine is a proposed piston
less rotary engine using a
rhomboidal rotor whose sides are hinged at
the vertices. The volume enclosed between
the sides of the rotor and the rotor casing
provide compression and expansion in a
fashion similar to the more familiar Wankel
engine, but the hinging at the edges allows
the volume ratio to increase . It is a crank less
engine and produces high torque at low RPM.

5. QUASI TURBINE

6. CONSTRUCTION
• Without carriages

7. •With carriages

8. Quasi Turbine Model Without
Carriages
•An oval housing
•Four sided rotor
•Inlet and exhaust port
•Spark plug

9. Quasi turbine Model with
Carriages
•4 carriages
•Each carriage consist 2 wheels
•Each blade has a filler tip and traction
slots
•A pivot forms the end of each blade

10. Cycles of internal combustion
• INTAKE, which draws in a mixture of fuel and air
• COMPRESSION, which squeezes the fuel - air
mixture into a smaller volume.
• COMBUSTION, which uses a spark from a spark
plug to ignite the fuel.
• EXHAUST, which expels waste gases (by-products)
from the engine.

11. QUASI ENGINE WITH CARRIAGES

12. QUASI ENGINE WITHOUT CARRIAGES

13. OUTPUT MECHANISIM
•The coupling arm is fitted to the
traction slots
•The output shaft is connected to the
coupling arm

14. Applications
•Aviation industry- High power-to-weight
ratio
•No vibration -Chainsaws,
• Air Compressors, Supercharger
•Military vehicles
•Pneumatic engine
•Pneumatic pumps

15. Advantages of Quasi turbine
engine
•Simple design and small size
•Less noisy
•Less vibrations are produced because the engine is perfectly
balanced
•High thermal efficiency
•Better conversion and transmission of mechanical energy
•Better torque continuity
•Faster acceleration
•Higher torque at lower RPM
•Nearly oil free operation
•Fewer moving parts so less wear and tear
•Compatible with photo detonation
•Multi fuel ability

16. Conclusion
In the future, however, you will likely
see the Quasi turbine used in so
many application ,like aviation etc