I. TWO STROKE ENGINE WITH EXHAUST VALVE
2. Field of invention: This invention relates to internal combustion engine
3. Background of invention with regards to the drawback associated with the ~ known arts: We know about the internal combustion engine very well. There are so
many type like radical engine, sterling engine, two stake engine and four stroke engine
etE: Today two stroke internal combustion engine ;id four slr3uke internal combustion
engine have only commercialization. Between of two, four stroke engines has
advantage over two stroke engine, even there the two stroke internal combustion
engine has better power weight ratio than four stro-.k. e internal combustion engine. But
due to bad scavenging the two stroke internal combustion engine has been obsolete
from the market.
4. Object of.the Invention: The Object of this invention is to improvement in two stroke .
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internal combustion engine.
5. Statement of Invention: The present invention has an exhaust valve in the head and
the inlet port around the cylinder at the same position as provided in the current two
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stroke internal combustion engine.
6. A summary of Invention: Present invention has the benefit of two stroke and benefit
of two stroke and four stroke internal combustion engine. It has one power stroke for
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each revolution of the crankshaft, lighter, flywheel, light weight of engine, simple
design with comparison of four stroke engine, less cost, more efficient than four stroke
engine. Less fuel consumption because fresh charge does not gets mixed with
exhaust gases. It has more thermal efficiency. It .can be used in mopeds, scooters,
motorcycle, cars, trucks, aircrafts, locomotive ships etc. It can run on petrol, diesel,
Compressed Natural Gas, biofuel etc.
CC
7. A brief description of accompanying drawings:-
Figure I: It shows a section of said two stoke engine with exhaust valve.
2. Piston
3. Inlet Port
a.
4. Exhaust Valve
5. Spark pluglfuel injector
8. Detail description of the invention with reference to drawing1example:-
According to Figure I :- The piston starts from bottom dead center with fresh air
incase of fuel injection system or fresh charge, incase of engine with carborator, and
compress it as soon as'the piston reaches to toprdead center, the charge ignited by
spark plug or fuel injected by fuel injector and push the piston down towards the
bottom dead center. As soon as it will reach upto the inlet port, the exhaust wall opens
just before the opening of the inlet port and the burnt gases gets out from the exhaust
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port and fresh air1 fresh charge enters into the cylinder and same process in repeated
again and again.

claims
1. An internal combustion engine provided exhaust valve in the head assembly and inlet ports near the bottom dead center.