Wednesday, March 26, 2008

TRANSMISSION


In Automotive, 2 type of transmission:
1) Manual Transmission
2) Automatic Transmission
General
As transmissions designed exclusively for 5-speed, 3rd-4th and 5th speed synchronizers is arranged on the input shaft while a 1st-2nd speed synchronizer is arranged on the intermediate gear.
A simple mechanical shift control mechanism is used in shifting into 5th-speed. As a result, the conventional 5th-speed shift control mechanism which uses a vacuum servo has been eliminated
The number of sets of gear meshing when the transmission is turning in neutral has been reduced from six to two, thereby reducing the noises produced during idling with the shift lever in Neutral.
Through use of a new type of synchronizer piece and a reduction in the inertial moment of the relevant synchronizing parts (through modification of the gear train), the shifting effort has been reduced and the shift feeling has been improved.
Through use of split needle bearings and an increase in the capacity of the shaft support bearings, the reliability and durability have been improved

Monday, March 24, 2008

CYLINDER AND ARRANGEMENT

In-line Engine




Designed as an In-Line style


Advantages
•Easy manufacture
•More cheaper

Disadvantages
• Cannot change aerodynamic









“V’ Configuration Engine
‘V’ type design, angle 60-90º


Slant Cylinder Engine

• Engine Design like In line
• It’s design to reduce distance TDC to BDC
• Slanting type can be design more aerodynamically



Opposed Cylinder Engine


• Used Two Cylinder Head
• The angle between two cylinder was 180º
• Normally it’s used in smaller vehicles


Radial Cylinder Engine

• Cylinder are set in a circles
• Normally this type used for high performance engine.

Sunday, March 23, 2008

ENGINE - "Energy Conversion"

Still in Engine Topic....
but detail in "Energy Conversion" first..its a Fundamentals




•Energy is define as the ability to do work
• Power is defined as a measure of the work
being done.
• Energy can take on one of six forms, they
include:
a. Chemical
b. Electrical
c. Radiant
d. Mechanical
e. Nuclear
f. Thermal forms of energy

Example how energy conversion happen :













Internal Combustion Engine,
Change Thermal Energy to Mechanical Energy

















External Combustion Engine
•Change Thermal Energy to Mechanical Energy
•Burning process occur outside combustion chamber













Reciprocating Engine, Changing motion upward and downward






















CLASSIFICATION OF ENGINE



DIESEL ENGINE - COMMANRAIL SYSTEM

ENGINE MANAGEMENT SYSTEM DIESEL Differences between diesel and gasoline engines   Major Differences between Diesel and Gasoline E...