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It is a continuous fuel flow device. This allows the most homogeneous mixture of air and fuel to
the engine yielding optimum combustion with minimum emissions and maximum fuel economy.
●
It operates on low pressure fuel from 6 to 20 inches of water of inlet pressure, no pressure
intensification system required.
●
It does not wear in the case of dry fuels (NG) and it does not stick or clog due to heavy
hydrocarbons or waxes found in LPG.
●
It is fast and accurate, providing precise air/flow ratio control during transients (or load
acceptance).
The DEPR is a single-stage microprocessor based electromechanical fuel pressure regulator that
incorporates a high speed actuator. It communicates with the Engine Control Module (ECM) over a
Controller Area Network (CAN) link, receiving fuel pressure commands and broadcasting DEPR operating
parameters back to the ECM. The DEPR can regulate fuel pressure b/- 17 inches of water
column above the Mixer air inlet pressure, providing sufficient control authority to stall an engine either
rich or lean. When the DEPR receives an output pressure command from the ECM, the valve is internally
driven to attain targeted fuel pressure, the DEPR then closes the loop internally using a built-in fuel
pressure sensor to maintain target fuel pressure/fuel flow rate, until another external command from
the ECM is received.
Figure 3 - E330 Mixer
Mixer: E330
We utilize a variable venturi mixer (E330 shown in Figure 3) when the DEPR is applied to an engine. The
basic principle of the product is to introduce air and fuel into the engine. It also aids in introducing
turbulence into the air and fuel assisting in its homogeneity. The mixer also acts to increase or decrease
the fuel entering the engine proportional to the amount of air flowing in the engine on a volumetric
basis.
E330 MIXER provide the following benefits to the market:
●
Superior fuel/air (phi) ratio accuracy, improving overall operation of the engine
●
Reduced part to part fuel/air ratio repeatability improving overall operation of the engine
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