Negative Supercharging




INTRODUCTION



Negative Supercharging is a highly advanced and complex Thermo Fluid Dynamic Process that converts the positive exhaust pressure produced after combustion into Negative Boost within the cylinders to pull more air into the engine. Negative Supercharging does NOT use any type of blower device and works the opposite to conventional supercharging by pulling air into the engine instead of pushing air like convention ....etc

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Abstract
Homogeneous charge compression ignition (HCCI) is a form of internal combustion in which well-mixed fuel and oxidizer (typically air) are compressed to the point of auto-ignition. Homogeneous charge compression ignition (HCCI) engines have
the potential for high efficiencies and low pollutant emissions.By comparison with spark ignition (SI) engines, for example,HCCI engines can yield a 15-20% increase in fuel economy while emitting lower levels of oxides of nitrogen (NOx).HCCI engines can also achieve thermal eff ....etc

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Supercharging of an IC Engines ppt
Effect, merits & Demerits of Supercharging ....etc

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NEGATIVE SUPERCHARGING


INTRODUCTION

WHAT IS MEAN BY SUPERCHARGING ?

IN THE NEGATIVE SUPERCHARGING PROCESS, POSITIVE EXHAUST PRESSURE CONVERTED INTO NEGATIVE BOOST TO PULL MORE AIR INTO THE ENGINE.

OPPOSITE TO CONVENTIONAL SUPERCHARGING.


COMBUSTION STROKE


EXHASUT VALVE OPENS
VELOCITY INCREASES IN TRI-Y HEADER(TWICE)


EXHAUST STROKE

.EXHAUST VALVE CLOSES EARLY.
.REDUCED OVERLAP DURATION
.LESS EXHAUST VALVE LIF ....etc

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EFFECT OF NEGATIVE SUPERCHARGING ON INTERNAL COMBUSTION
ENGINE


ABSTRACT
Until recently, Automobile manufacturers uses supercharger & turbocharger to supply
air-fuel mixture at a pressure above atmospheric. Up to 40% increase in power & torque may be
obtained by supercharging. As a typical example , in the Chrysler 2.2L turbocharged engine, the
turbocharged provides 35% more torque & 50% more power compared to the same engine
without turbocharger. To achi ....etc

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Presented By:
R.J. Stafford, J.M. Mulloy, T.M. Yonushonis, H.G. Weber, and M.J. Patel
Cummins Engine Company

INTRODUCTION

Turbocharging of diesel engines has enhanced fuel economy and reduced diesel engine emissions. The initial applications of turbochargers to heavy duty diesel engines during the early 1970's reduced Bosch smoke (a measure of particulate matter used at the time) from 2.4 to 0.6 units. At the same time, engine specific fuel consumption was reduced from 0.36 Ib./bhp-hr to 0.35 ib./bhp-hr. Since that time, a vari ....etc

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full details about the turbo charging for 2 wheelers ..give me a some idea about it...please ....etc

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RESPECTED SIR
PLEASE GIVE ME DETAILS ABOUT THE WORKING OF NEGATIVE PRESSURE SUPERCHARGING. ....etc

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I amlooking for supercharging of ic engine ppt
I am looking for supercharging of ic engine ppt
....etc

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i want presentation on negative pressure supercharging ....etc

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