M/S. WINTECH

ENGINEERING

WORKS,

VISAKHAPATNAM

Presentation on Diesel

Engine

Submitted by:

Abhishek Jakhar

12ME1001

Devendra Yadav

12ME1041

Submitted to:

HOD ME Dept.

MVN University

Palwal

1

2

Diesel Engine Basics

The purpose of the training

Work we have done there:

Working principle

Diesel Engine Process

Operation and Maintenance

Terminology

Components

Classification

3

Working Principle

Working Principle :

A reciprocating engine, in the cylinders of which

an introduced charge of air is compressed

sufficiently to ensure spontaneous ignition and

combustion of an atomized stream of fuel injected

into the said charge of compressed air.

Engine which works on the Diesel principle or

Diesel cycle.

4

Classification

Number of Stroke - Two Stroke and Four Stroke

Ignition - Compression and Spark

Cylinder Arrangement - Inline and ‘V’

Speed - Low, Medium and High

Classification :

5

Terminology

Looking The Engine From Flywheel End

Operating side – left hand or in V-engine A-side.

Back side – opposite of operating side or in V-engine B-side.

Flywheel end – end where flywheel is

Free end – opposite of flywheel end

Bottom – underside

Top – opposite of the bottom

6

Terminology

B1

A2

A3A4

A5A6

A7A8

B3B2

B4B5

B6B7

B8

A1

REAR SIDE

FREE END

MANOUVERING SIDE

FLYWHEEL END

B1

A2

A3A4

A5A6

A7A8

B3B2

B4B5

B6B7

B8

A1

REAR SIDE

FREE END

MANOUVERING SIDE

FLYWHEEL END

REAR SIDE

FREE END

MANOUVERING SIDE

FLYWHEEL END

Engine Components

Abhishek Jakhar

And

Devendra Yadav

8

Engine Block

9

Crankshaft

10

Flywheel :

Components

Bolted to flywheel end of

crankshaft by flange connection

Specific number of bolts are reamed

Smoothens out the speed fluctuations caused by non uniform flow of

power to and from the piston during each stroke

Thin and large diameter disk with

high inertia

11

Piston

12

Piston Ring :

Components

Made of high quality cast iron

Piston Ring set consist:

• Two comp. + One oil scrapper ring in 32LN

• 2+2 combination or

• 3+1 combination i.e. 3

compression rings plus one oil

scrapper ring or

Cylinder tightness is further

improved by inherent spring force

13

Connecting Rod

14

Components

Types of Connecting Rods :

15

Cylinder head

16

Components

Valve Tappet and Push Rod :

17

Camshaft

18

Components

Camshaft :

The bearing housings are integrated in the engine block

The cams are integrated in the drop forged shaft material

19

Piston

Hole for gudgeon pin

Grooves for piston rings

Piston ring set

20

Oil Sump

The oil sump, bolted to the bottom of the engine block,

holds the entire lubrication oil quantity,

unless it is a so called dry sump installation.

21

Turbocharger

Exhaust gas

inlet ports

Intake air filterExhaust gas outlet

22

Twin charge air cooler for a V-engine

THANK YOU