Internal CombustionEngine You will learn the operation and parts of the small internal combustion engine.

Internal Combustion Engine The real strength of internal combustion engines is in mobile applications and they dominate as a power supply for cars, aircraft, and boats.mobile applications

Types of ICE Internal combustion engines can be classified by their configuration. Common layouts of engines are: – Reciprocating – Rotary – Gas Turbine – Jet

Reciprocating Engines A reciprocating engine, also often known as a piston engine, is a heat engine that uses one or more reciprocating pistons to convert pressure into a rotating motion.heat enginereciprocatingpistonspressurerotating motion Types: – Two-stroke engine Two-stroke engine – Four-stroke engine Four-stroke engine – Six-stroke engine Six-stroke engine – Diesel engine Diesel engine – Atkinson cycle Atkinson cycle – Miller cycle Miller cycle Reciprocating means up/down or back/forth

Two-Stroke Engine The two-stroke engine was very popular throughout the 20th century in motorcycles and small-engined devices, such as chainsaws and outboard motors, and was also used in some cars, A two-stroke engine is an internal combustion engine that completes the process cycle in one revolution of the crankshaft (an up stroke and a down stroke of the piston, compared to twice that number for a four-stroke engine).internal combustion enginepistonfour-stroke engine The functions of some or all of the valves required by a four- stroke engine are usually served in a two-stroke engine by ports that are opened and closed by the motion of the piston(s), greatly reducing the number of moving parts.

Two-stroke engine

Four Stroke Engine The four strokes refer to intake, compression, combustion (power), and exhaust cycles that occur during two crankshaft rotations per power cycle of the four cycle engines. The cycle begins at Top Dead Centre (TDC), when the piston is farthest away from the axis of the crankshaft. A cycle refers to the full travel of the piston from Top Dead Centre (TDC) to Bottom Dead Centre (BDC).Top Dead Centrecrankshaft

Four-stroke Cycle SuckSqueezeBangBlow

Six Stroke The six-stroke engine is a type of internal combustion engine based on the four-stroke engine, but with additional complexity intended to make it more efficient and reduce emissions. Two types of six-stroke engine have been developed since the 1990s:internal combustion enginefour-stroke engine The main approach to the six-stroke engine uses a second opposed piston in each cylinder that moves at half the cyclical rate of the main piston, thus giving six piston movements per cycle.opposed piston

Diesel Engine A diesel engine (also known as a compression-ignition engine) is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber. Diesel engines are manufactured in two stroke and four stroke versions. They were originally used as a more efficient replacement for stationary steam engines.two strokefour strokesteam engines Since the 1910s they have been used in submarines and ships. Use in locomotives, trucks, heavy equipment and electric generating plants followed later.submarinesheavy equipment

Atkinson Cycle Engine The Atkinson cycle is designed to provide efficiency at the expense of power density, and is used in some modern hybrid electric applications. Due to the unique crankshaft design of the Atkinson, its expansion ratio can differ from its compression ratio and, with a power stroke longer than its compression stroke, the engine can achieve greater thermal efficiency than a traditional piston engine.crankshaft compression ratio

Miller Cycle Engine This type of engine was first used in ships and stationary power-generating plants, but was adapted by Mazda for their KJ-ZEM V6, used in the Millenia sedan, and in their Eunos 800 sedan (Australia) luxury cars. More recently, Subaru has combined a Miller cycle flat-4 with a hybrid driveline for their concept "Turbo Parallel Hybrid" car, known as the Subaru B5- TPH.

Rotary Engine The Wankel engine is a type of internal combustion engine using an eccentric rotary design to convert pressure into a rotating motion instead of using reciprocating pistons.internal combustion engineeccentricrotary designpistons Thanks to their compact design, Wankel rotary engines have been installed in a variety of vehicles and devices including automobiles, motorcycles, racers, aircraft, go-karts, jet skis, snowmobiles, chain sawsautomobilesmotorcycles racersaircraftgo-kartsjet skissnowmobileschain saws The Mazda RX-8, a sports car powered by a Wankel engineMazda RX-8

Operation As their name implies, four-stroke internal combustion engines have four basic steps that repeat with every two revolutions of the engine: (1) Intake stroke (2) Compression stroke (3) Power stroke and (4) Exhaust stroke