The document compares petrol and diesel engines, detailing their ignition processes and working cycles. A petrol engine ignites a fuel-air mixture via a spark plug, while a diesel engine uses compressed air heat to ignite diesel fuel. The text also mentions RSR Rungta Engineering College, which offers various mechanical engineering programs.

1. Petrol engine vs Diesel engine

2. Petrol engine
It is an internal combustion
engine with which the air-fuel
mixture ignites due to the spark
provided by a spark plug, known
as a gasoline engine.

3. Diesel engine
Its internal combustion engine that
works on air is compressed,
becomes very hot and then fuel
(diesel) is injected into it. Ignition
temperature by the heat of
compressed air. It also called as
compression-ignition engine.

4. Working of a Diesel Engine
Step 1. Induction Stroke –Piston
goes downward and air comes into
cylinder.
Step 2. Compression Stroke –Piston
goes upward and compress the air
with higher temperature.

5. Working of a Diesel Engine
Step 3. Power Stroke –Diesel is added
to the cylinder.
Step 4. Exhaust Stroke – Diesel starts
burning by hot air. Smoke exhausts the
valve.

6. Working of a Petrol Engine
Step 1. Intake- Petrol and air are
added to the cylinder and mixed.
Step 2. Compression- The mixture
of petrol and air is compressed by
crankshaft.

7. Working of a Petrol Engine
Step 3. Power- Now spark plug burn
used in the mixture forces the
piston down.
Step 4. Exhaust- Gases go out the
exhaust valve.

8. Thanks to : RSR Rungta engineering college
Sanjay Rungta Group of Institutions (SRGI) is the
best mechanical engineering college in
chhattisgarh and offers a 4-year B. Tech
Programme, a 3-year Diploma, and 2 Years of M.
Tech Programme in Production Engineering. In
this department, Mechanical Engineering is a
structured program that prepares students for a
broad range of career choices.