Six stroke engine, working and constructional details...

1. Six Stroke Engine
Sidharath Joshi
SU13127

2. Contents…
Engine
Components
2 Stroke Engine
4 Stroke Engine
6 Stroke Engine
Concepts and Working of 6 Stroke engine
Advantages and Disadvantages
Comparison
Conclusion

3. Engine
 "Engine" was originally a term for any mechanical device that
converts force into motion
 An engine is a machine designed to convert one form of
energy into mechanical energy.
TYPES
 Internal combustion engines
 External combustion engines

4. Components
 Ignition system
 Spark Plug
 Fuel injector
 Fuel systems
 Carburettor
 Fuel pump
 Valves
 Cooling systems
 Cylinder
 Piston
 Crankshaft
 Flywheels
 Governor

5. Two Stroke Engine
• Intake and Crankcase compression
• Power and Exhaust

7. Four stroke engine
• Intake
• Compression
• Power
• Exhaust

9. Six Stroke Engine
 The first commercially successful internal combustion engine was
created by Lenoir around 1859.
 During every cycle in a typical four stroke engine, piston moves
up and down twice in the chamber, resulting in four total strokes
and one of which is the power stroke that provides the torque to
move the vehicle. But in a six stroke engine there are six strokes
and out of these there are two power strokes.
 The six stroke engine has 2 power strokes, one fuel, one steam or
air.
Concepts of 6 Stroke engine

10.  The first four strokes are the same as a four stroke internal
combustion engine.
 After the exhaust stroke, instead of air/fuel mixture (as in case of
petrol engines), fresh air/water is sucked into the cylinder from the
filter and is removed during the sixth stroke.
Working principle

11. The term six stroke engine describes two different approaches
in the internal combustion engine…
 In the first approach, the engine captures the waste heat
from the four stroke Otto cycle or Diesel cycle and uses it to
get an additional power and exhaust stroke of the piston in
the same cylinder.
• The second approach
to the six stroke engine
uses a second
opposed piston in each
cylinder which moves
at half the cyclical rate
of the main piston, thus
giving six piston
movements per cycle

12. Griffin. Simplex
Actual prototype of Bajulaz
engine
Crower six: stroke engine
Velozeta engine

13. German charge pump German, charge pump engine parts
Beare head, engine M4+2 engine

14. ADVANTAGES & DISADVANTAGES
Advantages
 Reduction in fuel consumption by at least 40%
 Two expansions(work/Power stroke) in six strokes
 Dramatic reduction in pollution ( up to 65%)
 Higher overall efficiency
 Lower engine temperature & noise level
 Due to more air intake, the cooling system is improved
Disadvantages
 Brake power & indicated power per cycle per cylinder is
comparatively lesser
 Engine size increases due to many number of cylinders &
additional components

15. COMPARISON
 Lower maintenance costs due to less wearing parts (cylinder
head)
 Longer service intervals possible due to lower operating
temperatures recorded
 Increase in thermal efficiency

16. APPLICATION
 Motorboats might offer a big outlet for this type of engine. Their
characteristics are perfectly suited to its use. Furthermore, the
use of fuels other than gasoline would greatly reduce the risks of
explosion.
 Using non-fossil fuels of vegetable origin, natural gases and
others
 Motor-pumps, generator sets, stationary engines, etc....intended
for agriculture and industry.
 Automobiles, heavy goods, construction-site and farm vehicles.

17. CONCLUSION
Billions of explosion engines are running worldwide at this time and this
era is not about to end.
It is commercially obvious that the big market is for automobile, heavy
goods, construction-site and farm vehicles. This is a priority for the six-
stroke engine. Drastically reducing fuel consumption and pollution without
radically affecting performances would allow the current concept of the
automobile to be reassessed.
There is, at this day, no wonder solution for the replacement of the
internal combustion engine. Only improvements of the current technology
can help its progress within reasonable time and financial limits. The six-
stroke engine fits perfectly into this view. Its adoption by the automobile
industry would have a tremendous impact on the environment and world
economy, assuming up to 40% reduction in fuel consumption and 60% to
90% in polluting emissions, depending on the type of fuel being used.
Fuel consumption for mid-sized cars should be within 4 and 5 liters per
100km. and 3 to 4 liters for the small-sized cars. Automobiles equipped
with the six-stroke engine could appear in the market within 3 to 5 years.