The piston descends from the top of the cylinder to the bottom of the cylinder, reducing the pressure inside the cylinder. A mixture of fuel and air,

Slides:

Advertisements

Similar presentations

Engine Operating Principles

Advertisements

2 Stroke cycle engines

Engine Maintenance Chapter 1 What Makes the Boat Go.

5 Principles of Engine Operation, Two- and Four-Stroke Engines.

Vigyan Ashram, Pabal. In this presentation you will learn : – What is IC engine? – How it works? – Where it is used?

During the intake or admission stroke, the piston moves downward as a charge of combustible fuel and air is admitted into the cylinder through the open.

HOW THE ENGINE WORKS RK.

Two-Stroke Engine Less moving parts: Piston Crank shaft Reed valve

Four Stroke Cycle Engine

INTERNAL COMBUSTION ENGINES

Automotive Industry Career Opportunities The automotive industry is expected to be one of the top growing career fields. Employment is expected to grow.

Section 16.3 Using Heat.

Two-Stroke Engines Two-stroke engines are used only in applications where the motor is not used very often and a fantastic power-to-weight ratio is important.

How It Works Picture Advantages And Disadvantages Common Applications Click the screen to continue or click the arrows to go to a specific location. Exit.

OTTO CYCLE Objective: Explain what is the Otto cycle, how it works and application By: Jonathan Tang.

4 Stroke engine Stroke is defined as the movement of the piston from the 'bottom dead center' (BDC) to the 'top dead center' (TDC) or the other way round,

Two Stroke Cycle Engine

CHAPTER 1 TYPES OF ENGINES

Small Engines The identification and operating process of four-cycle and two-cycle small engines Mr. Alan Ford.

The Effect of Engineering Innovation on Society Lawnmowers.

Introduction Diesel Engine.

Wankel or Rotary engine No Piston. Rotor that spins in an oval chamber (shaped like a flat figure 8) by burning fuel. Rotor has three lobes. Rotor rotates.

Four- Stroke Small Engines

Gasoline Engines Operation Energy and Power Energy is used to produce power. Chemical energy is converted to heat energy by burning fuel at a controlled.

Prepared by : Pavan Narkhede

The Diesel Cycle By Marcus Low. What is the difference? The Diesel engine takes in JUST air. The compression ratio is higher, thus higher efficiency.

1 Four Stroke Engines How does a canon work?. 2 Engine Operation Gasoline & diesel engines convert chemical energy into mechanical energy.

The Diesel Engine The Combustion Cycle The four-stroke combustion cycle of the diesel engine is composed of the intake stroke, compression stroke, power.

ELECTRICAL 2 PRITESH DESAI SWATI GAJERA VISHAL GANGADIYA VIVEK GARALA BHAVESH GAUDANI SANKET GOSWAMI DILIP GANGADIYA SUMIT GODHANIYA ALPHESH HADIYA AKSHaY.

Supreme Power Engine Basics The four cycle engine.

home.howstuffworks.com

ENGINE DESIGN AND OPERATION. ENGINE CLASSIFICATIONS n VALVE ARRANGEMENT n CAMSHAFT LOCATION n IGNITION TYPE n CYLINDER ARRANGEMENT n NUMBER OF CYLINDERS.

Four Stroke Cycle Engine Fundamentals.

Presentation on HEAT ENGINE PREPARED BY: CHAUHAN SATISH(EN. NO: ) GAUTAM ASHISH(EN. NO: ) KETUL PATEL(EN. NO: ) SUB:

The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline. This is.

Four Stroke Gas Engines The four strokes of a internal combustion engine are: Intake Compression Power Exhaust Each cycle requires two revolutions of the.

1 Four Stroke Engines How does a canon work?. 2 Engine Operation Gasoline & diesel engines convert chemical energy into mechanical energy.

5 parts. 1. Burned gases removed by the motion of the a piston. 2. The movement of a piston from top to bottom or from bottom to top. 3. A sliding cylinder.

Heat Engines A gasoline engine is a form of a heat engine, e.g. a 4-stroke engine INTAKE stroke: the piston descends from the top to the bottom of the.

1 3E-03 Fire Syringe RAPID COMPRESSION IS ADIABATIC GIVING RAPID RISE OF AIR TEMPERATURE IN THE CHAMBER WHICH EXCEEDS THE IGNITION TEMPERATURE OF THE FLAMMABLE.

Unit 61: Engineering Thermodynamics Lesson 12: Combustion Engines.

Chapter 32 The Four-Stroke Cycle and Cylinder Arrangements.

The Small Internal Combustion Engine. Objectives Identify the operating principles of the internal combustion engine. Identify the operating characteristics.

The Otto Cycle for a 4 stroke gasoline engine.

STEP ONE: INTAKE Air and fuel enter the small engine through the carburetor. The carburetor to supply a mixture of air and fuel for proper combustion.

The Heart of the Automobile

CONTENTS Introduction to Engines Types of Engine

5 Principles of Engine Operation, Two- and Four-Stroke Engines.

IN THE NAME OF ALLAH THE MOST BENEFICIENT THE MOST MERCIFUL:

HOW THE ENGINE WORKS RK.

Automotive Technology

Small Engine Principles of Operation Test

Thermodynamics, Lesson 4-4: The Air Standard Diesel Cycle

Unit - 2 INTERNAL COMBUSTION ENGINES.

Unit 61: Engineering Thermodynamics

Engine Cycles This presentation will explore: Engine Operation

How Many Small Engines do you have at home?

Diesel Automotive Engines

Four Stroke Compression Ignition (CI) Engine

Introduction to Engine Parts, Operation and Function

Engine Design and Classification

Engine Operation Four-Stroke Cycle.

The Otto Cycle By: Vijai Sookrah

0th and 1st law of thermodynamics

Energy Conversion Engines take heat energy and convert it into mechanical energy. Motors take electrical energy and convert it into mechanical energy.

Four Stroke Engines How does a canon work?.

Engine Definition： Engine: A machine that converts energy into mechanical force or motion.

Presentation transcript:

The piston descends from the top of the cylinder to the bottom of the cylinder, reducing the pressure inside the cylinder. A mixture of fuel and air, or just air in a diesel engine, is forced by atmospheric (or greater) pressure into the cylinder through the intake port. The intake valve(s) then close.valve The volume of air/fuel mixture that is drawn into the cylinder, relative to the volume of the cylinder is called, the volumetric efficiency of the engine.volumetric efficiency

During the intake stroke, the piston moves downward, drawing a fresh charge of vaporized fuel/air mixture. The illustrated engine features a poppet intake valve which is drawn open by the vacuum produced by the intake stroke.

The piston returns to the top of the cylinder compressing the air, or fuel-air mixture into the combustion chamber of the cylinder head.combustion chamber

As the piston rises, the poppet valve is forced shut by the increased cylinder pressure. Flywheel momentum drives the piston upward, compressing the fuel/air mixture.

While the piston is close to Top Dead Center, the compressed air–fuel mixture in a gasoline engine is ignited, usually by a spark plug, or fuel is injected into the diesel engine, which ignites due to the heat generated in the air during the compression stroke.spark plug The resulting massive pressure from the combustion of the compressed fuel-air mixture forces the piston back down toward bottom dead centre.combustion

At the top of the compression stroke, the spark plug fires, igniting the compressed fuel. As the fuel burns it expands, driving the piston downward.

The piston once again returns to top dead center while the exhaust valve is open. This action evacuates the burnt products of combustion from the cylinder by expelling the spent fuel-air mixture out through the exhaust valve(s).

At the bottom of the power stroke, the exhaust valve is opened by the cam/lifter mechanism. The upward stroke of the piston drives the exhausted fuel out of the cylinder.