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M. L. Mathur and R. P. Sharma, A course in Internal Combustion Engines, Dhanpath Rai and ... A. R. Rogowski, Elements of I. C. Engines, Tata McGraw-Hill . iv.
BITS PILANI, DUBAI CAMPUS First Semester 2012 – 2013 Course Handout (Part – II) Date: 02.09.2012 In addition to Part I (General Handout for all courses appended to the Time Table) this portion further specific details regarding the course. Course No. Course Title Course Instructors Instructor-in-charge

: : : :

ME C441 (3 0 3) Automotive Vehicles Dr. R. Udayakumar Dr. R. Udayakumar

Scope and Objective of the Course: This course has been designed to make the students familiar with the automotive vehicles. It deals with the principle of operation and performance of internal combustion engines, along with working, analysis and design of various components of automotive vehicles. Course Pre/Co- requisite (if any) & Catalogue / Bulletin Description: Given in the Catalogue 2012 – 2013 CD

Text book(s) [TB] nd i. Joseph Heitner, Automotive Mechanics – Principles and Practice, - Affiliated East West Press, 2 edition, 1980. ii. N. K. Giri, Automotive Mechanics, Khanna Publishers, 1996. Reference book(s) [RB]: i. V. Ganeshan, Internal Combustion Engines, Tata McGraw-Hill ii. M. L. Mathur and R. P. Sharma, A course in Internal Combustion Engines, Dhanpath Rai and Sons. iii. A. R. Rogowski, Elements of I. C. Engines, Tata McGraw-Hill. iv. Kripal Singh, Automobile Engineering, - Vol. I & II, Standard Publishers & Distributors. Course Plan / Schedule: Learning Objectives

Topics to be covered

Reference * Chap./Sec. # (Book)

01

Air standard cycles and their analysis

Auto, Diesel and Dual cycle.

3RBi

02

Fuel-air cycles and actual cycle

Variable specific heats. Dissociation. Valve-timing diagram. Time loss factor. Heat loss factor. Exhaust blow down.

3TBi, 4&5RBi

Construction of I.C. engines Combustion in S.I. engines Combustion in S.I. engines Combustion in C.I. engines Combustion in C.I. engines

Piston. Piston rings. Cylinder. Crank. Connecting rod. Gaskets. Cylinder head. Stages of combustion. Flame front propagation. Factors influencing the flame speed. Rate of pressure rise. Knocking in SI engines. Effect of variables on knocking. Combustion chambers of SI engines. Stages of combustion. Delay period. Factors influencing the delay period. Knocking in CI engines. Effect of variables on knocking. Combustion chambers of CI engines. Carburetion. Engine mixture requirements. Simple carburetor. Calculation of air fuel ratio. Strainers. Float chamber. Choke. Throttle. Metering system. Idling system. Acceleration system. Altitude compensation. Air injection system. Solid injection system. Unit injection system. Injection pumps. Types of nozzles.

LectNo.

03 04 05 06 07 08 09 10 11

Carburetors Parts of a carburetor Fuel injection system Fuel injection system

12

Cooling systems

13

Cooling systems

14

Lubrication systems

15

Lubrication systems

Injection pumps and Fuel injectors. Need. Variation of gas temperature. Piston temperature distribution. Theory of engine heat transfer and correlation. Parameters affecting engine heat transfer. Air-cooled systems. Types of water-cooling systems. Radiators. Fans. Correlation for the power required for engine cooling. Causes of engine friction. Function of lubrication. Mechanism of lubrication. Journal bearing lubrication. Types of lubrication systems. Lubrication of engine components.

3TBi, 2TBii 10RBi 10RBi 10RBi 10RBi 8TBi, 3TBii 3TBii, 7RBi 8RBi 8RBi 10TBi, 2TBii, 12RBi 12RBi 6TBi, 11RBi 6TBi, 11RBi

16

Engine performance

Measurement of frictional power. Air consumption. Fuel consumption.

17

Engine performance

Engine power and Engine efficiencies.

18

Engine performance

Engine performance characteristics.

19

Clutch

20 21

Clutch Clutch

22

Gear box

23

Gear box

24,25

Gear box

26

Propeller shaft

27

Universal joint Differential and rear axle

28 29 30 to 32 33 to 35

Brakes Brakes Steering systems

36 to 38

Brake wheel

39 to 41

Ignition and starting

42 to 43 44 to 45

2TBii, 3RBi, 18RBii 2TBii, 3RBii, 18RBii 2TBii, 3RBi, 18RBii

Driving system and Plate clutch (uniform pressure and uniform wear). Cone clutch (uniform pressure and uniform wear). Energy lost by plate clutch during engagement. Centrifugal clutch. Epicyclic or planetary gear (algebraic method and tabular method). Torque and tooth load in epicyclic gear trains. Sliding mesh and constant mesh gears. Epicyclic gears and hydra-matic transmission. Types of driving shafts. Mechanics of Hotchkiss and torque tube drives. Slip joint. Hook’s joint. Differential. Rear axle. Axle shaft. Axle housing.

All Transmission systems

Seminars

On survey assignments

14TBi, 5TBii 14TBi, 5TBii 15TBi, 5TBii 15TBi, 5TBii 15TBi, 5TBii 20TBi, 6TBii 20TBi, 6TBii 20TBi, 6TBii

Theory of band brake, block brake, and band and block brake. Internal expansion brake. Hydraulic brakes. Hand or parking brakes. Braking of vehicle moving in a curved path. Ackerman steering gear. Devis steering gear. Turning circle radii. Standard steering gears. Power steering. Braking of vehicle. Heat generated due to braking operation. Types of wheels. Design consideration of wheels. Wheel alignment. Theory of automobile batteries. Testing of battery. Operation of ignition system. Primary condenser. Distributor. Spark plug. Starting motor.

I.C. Engine Lab Visit

14TBi, 5TBii

21TBi, 8TBii 21TBi, 8TBii 22TBi, 7TBii 21TBi, 4TBii

12TBi, 4TBii

Total Number of classes planned : 45 Evaluation scheme:

5

Evaluation Components

Test-1 Quiz-1 Test - 2 Quiz – 2 / Assignment Compre Exam

Nature of Component Closed Book Closed book Open book* Closed book Closed Book

Duration 50 minutes 20 minutes 50 minutes 20 minutes

Weightage % 25 08 20 07

Date & Time 24.10.12 W6 To be announced 12.12.12 W6 To be announced

3 hours

40

08.01.13 T (AN)

Venue

To be announced later

EC N0 1 2 3 4

* Only prescribed text book(s) and hand written notes are permitted General Instructions, Attendance & Make-up Policies, etc: Please refer the Time Table Timings for chamber consultation: Students should contact the Course Instructor in his chamber 274 during Thursday fourth period (10.15 -11.05 p.m.) for consultation.

Notices: All notices will be displayed on the fourth year Notice Board. Instructor-in-Charge Dr.R.Udayakumar. Instructor’s Contact details: Dr.R.Udayakumar (Course Coordinator) – Academic Block, Chamber No: 274 Contact Tel. No: 04 4200700 Extn. 287, Email: [email protected]