The FASS
Fuel Pumps were designed to give yesterday
and today's diesel engine "Test Cell
Performance" in "Real World Conditions."
Recognizing
the conditions of the test cell vs. real
world application introduces a whole set of
variables affecting the fuel supply/delivery
to the engine. In a manufacturers test cell,
if you ever have the chance to go on a tour,
you will recognize optimal engine
conditions. Optimal engine conditions equal
optimal engine performance. Optimal engine
performance consists of optimal fuel supply.
Manufactures' tests vary slightly from one
manufacture to the other but are configured
with these basics:
- Fuel
tank is usually at least 10 feet above
the engine
- Fuel
tank is stationary
- Return
fuel is returned to a separate tank
With the
optimal fuel supply achieved, the fuel
injection system can perform the job for
which it was designed, keywords, optimal
performance. That is to deliver virtually
pure fuel to the injectors at the proper
pressure; the injectors can then deliver the
proper amount of fuel at the proper time
into the cylinder for a more complete
combustion. Understand fuel injection
systems were designed to inject a
predetermined amount of fuel at a
predetermined time.
Give thought
to the real world applications. As you might
have noticed, we are unable to raise our
fuel tanks higher than they are.
- Fuel
tanks are usually below the engine and
separated from the engine by 5 – 15 feet
- Vehicles
are in motion
- Hot
return fuel is routed into the fuel
supply tank
