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]
