Internal combustion engine with oscillating shaft generating higher power, compared to conventional arrangement of pistons and crank gear. It's latest development leads to most essential requirements of an ideal internal combustion engine and special demands that cannot met with a conventional power generator.

1. Internal Combustion Engine
with Oscillating Shaft
New power generation technology
generating 1.55 times higher power than the
present engine mechanism with crank gear

2. Inventor : Leelananda Jayasuriya
Patents granted in Sri Lanka

3. The New feature & Advantages
This technology substitutes crank gear with an
oscillating shaft. Its high performance mechanism
eliminates the problems met with crank gear,
typically the internal resistance and claiming higher
efficiency, higher power, lighter weight, least
starting effort, fuel saving in idle running, and
miniature starting power source. These conditions
lead to most essential requirements of an ideal
internal combustion engine and special demands
that cannot meet with a conventional power
generator.

4. Why it is necessary to find a new
mechanism
It is evident when investigating the cycle of
internal combustion engine, only 40% or lesser
amount of heat energy is converted in to useful
work and the major part of energy is dissipated
as losses. Since the ideal power requirement is
in rotary manner, the linear motion has to
convert to rotary motion, and it is far from ideal
requirement. The performance of the
reciprocating piston engine is limited due to its
inherent characteristics of the crank gear.

5. Why it is necessary to find a new
mechanism

6. The new engine arrangement with
oscillating shaft

7. How it works
A typical construction of this internal combustion
engine development consists two banks of
cylinders arranged side by side. The pistons are
connected with straight piston rods, having a pin
on its' stem to engage inside a groove provided at
mechanical linkage. The mechanical linkage is a
rigid rod in which the central point is fixed to
oscillating shaft. The drive force of the piston is
transmitted from piston rod to oscillating shaft
through mechanical linkage.

8. Inside view of the engine (Slide 1)

9. Inside view of IC Engine with
Oscillating Shaft (Slide2)

10. Oscillating Shaft

11. How oscillations converted in to uni-
directional rotation

12. Uni-directional gear & Oscillation
controller

13. How Oscillations are controlled

14. Advantages of Oscillator Engine
• Oscillator Engine is minimizing internal
resistance to boost power and
efficiency. It defines a technology to
save fuel by more than 40%, confirming
with results. The idea of creating
oscillator engine is to find a method of
transfer gas pressure force into driving
force virtually without any loss

15. Advantages of Oscillator Engine
This engine helps in many folds to improve the efficiency and power.:
• It has an excellent fuel economy and a far better power to weight ratio. It generates 1.55
times higher power than the conventional engine.
• It is much smaller, with considerably reduced height and weight, it can produce at lower
cost.
• Under idle running conditions the engine require a negligible power to keep the engine
running.
• Oscillator engine has a long service life. The pistons are movable inside the working barrel
without exerting lateral thrust on walls of working barrel, so that friction on walls will be
minimum.
• The compact design features reduce the engine weight.
• Distinctively the storage battery power requirement to start the engine is minimum,
reducing the battery weight.

16. Liquid and gaseous fuel reserves are not
available in exodus in nature and they are
diminishing. Although we can find alternative
energy solutions we cannot produce liquid or
gaseous fuel to run automobiles.
The development of Internal combustion
engine with Oscillating shaft will continue until
a suitable entrepreneur is met.
Thank you for attention during my presentation