What is the main reason VCO nozzle geometry has become common today?
A) lower manufacturing costs
B) lower HC emissions
C) lower NOx emissions
D) easier to recondition

Question

Quizplus · Accepted Answer

The main reason VCO (Valve-Covered-Orifice) nozzle geometry has become common today is due to its ability to lower hydrocarbon (HC) emissions. This design improves the fuel atomization process, leading to more complete combustion and thus reducing the amount of unburned hydrocarbons emitted.

What Is the Main Reason VCO Nozzle Geometry Has Become