IC Engines

Types of Engines

Steam Engine

• The fire boils water which turns into steam.

• The steam goes through a valve and then pushes on a

piston.

• The piston goes back and forth and turns the wheels.

IC Engine

Compression Ignition Engines

Spark Ignition Engine

Ignition lag and fuel propagation

Engine LayoutsEngine Layouts

Spark Plug

Carburettor

Fuel Injector

Hybrid Engines

• Pure electric

• Electric assist

• Pure petrol

• Regenerative

Engine Cooling SystemsAir cooling: • fins built into the outside of the cylinders.• the fins act as heat sinks, getting hot with the engine but transferring the heat to the air as the air passes through and between them.

Oil cooling:• engine oil - to transfer heat away from the moving parts and back to the sump where fins on the outside of the

sump can help transfer that heat out into the air.• at some points it's directed through cooling passageways close to the cylinder bores to pick up heat. From there it goes to an oil radiator placed out in the airflow to disperse the heat into the air before returning into the core of the engine.

Water cooling:a coolant mixture is pumped around pipes and passageways inside the engine separate to the oil, before passing out to a radiator. The radiator forces the coolant to flow through long passageways each of which have lots of metal fins attached to the outside giving a huge surface area. The coolant transfers its heat into the metal of the radiator, which transfers the heat into the surround air through the fins .

Valve train

Valve train is a term used to describe the mechanisms and parts which control the operation of the valves.

Turbochargers