The ABCs of Carburetion

UM-900 (1959)

 

Page 4 of 19

THE CARBURETOR'S JOB Continued
tmp79A-1.jpg
ATOMIZATION
Spray of line particles great air contact
ATOMIZATION
"Atomization" simply means breaking the liquid fuel up into very small particles, so that it can more easily vaporize and mix with the air. With the fuel broken into small particles, there is much more chance for air contact; the more air contact, the better the vaporization.
METERING
Another "must" for good combustion is a cor­rect mixture ratio between the fuel and air, commonly called the "air-fuel ratio." To re­lease all possible energy by combustion, a given amount of fuel must be mixed with a
given amount of air. The metering job of the carburetor is to furnish the proper air-fuel ratio for various conditions, so that engine opera­tion will be neither too lean for power require­ments nor too rich for economy.
DISTRIBUTION
For good combustion and smooth, even opera­tion, the air and fuel must be thoroughly and uniformly mixed, delivered in equal quantities to each cylinder and evenly distributed within the combustion chamber. The carburetor must furnish a properly distributed mixture to the in­take manifold; from that point on, distribution depends mostly on engine design.
4

  <PREVIOUS PAGE    INDEX     NEXT PAGE >

 

INFORMATION FOR PRE - 1960 CHEVROLETS

 

WebCounter says that you are visitor number:

Please Report any Broken Links or Pages that do not load properly.  Webmaster

This Information is for Research and the Promotion of the Preservation of Older Chevys

All Names, Trademarks and Logos Belong to their Respective Owners.

 

Web Space Provided by TOCMP