08-12-2012, 06:22 PM
SPLIT ENGINE
split-engine.ppt (Size: 953 KB / Downloads: 180)
Abstract :
The first four-stroke piston was developed in 1876.
This four-stroke piston arrangement is still the primary design of engines built today.
Todays engines operate at only 33% efficiency.this means that only 1/3 of the energy in each gallon of fuel is used-the rest is lost through friction and heat.
With over a billion engines currently in worldwide,even small gains in efficiency will have impacts on the economy,dependency on foreign oil,and the environment.
Introduction :
Split engines appeared as early as 1914.
Split cycle engines separate the four strokes of intake, compression power, and exhaust into two separate but paired cylinders.
The first cylinder is used for the intake and compression. The compressed air is transferred through a connecting passage or tube from the compression cylinder into the second cylinder where combustion and exhaust occur.
Scuderi split cycle engine
This engine is proposed by late Carmelo scuderi (1925 -2002) who spent over 40 years inventing, developing and commercializing new technology.
2. The Scuderi split cycle engine technology changes the heart of the I.C engine.
3. By using fluid and thermodynamic techniques, the scuderi technology improves how an engine converts chemical energy to mechanical energy.
How does the air get from one cylinder to the other
There is a short passageway connecting the cylinders.
A conventional cam-actuated valve admits air to the combustion chamber, but a pressure activated disk type valve admits air into the passageway from the compression chamber and prevents it from leaking back onto the intake cylinder.