POWERTRAIN SYSTEMS

Delphi Dual Diesel Electronic Throttle Controls
Delphi Dual Diesel Electronic Throttle Controls regulate the intake
manifold pressure on diesel engines to help increase exhaust gas
recirculation (EGR) rates. They also include a mechanism to
enable intake air to by-pass the intercooler allowing particulate
trap regeneration. The valves can also provide low minimum flow
for smooth diesel engine shutdown. Customized mounting
interfaces are available.

Benefits
Accurate manifold flow control can achieve high EGR flow rates
with minimal system effect
Built-in valve to by-pass the intercooler allows regeneration of
the particulate trap
Achieves low minimum flow rates for smooth engine shutdown,
and minimized noise, vibration and harshness (NVH)
Non-contacting throttle position sensor technology provides
improved reliability and durability

Delphi Dual Diesel Electronic Throttle
Control Valve

Typical Applications
The principal application for Delphi Dual Diesel Electronic Throttle Controls is for light duty high speed
diesel engines to contribute to reduced NOx emissions and particulate trap regeneration.

Performance Advantages
Delphi Dual Diesel Electronic Throttle Controls offer manufacturers a number of functional advantages
versus systems without manifold vacuum regulator valves and performance advantages over systems with
pneumatic activation technologies. Some of these advantages include the ability to accurately regulate
manifold vacuum and to accurately repeat — and hold — any given position of flow. Their switching
capability provides the advantage of fine control over the charge temperature allowing particulate trap
regeneration to occur over a wider range of engine conditions compared to conventional technologies. This
function can also be achieved with a separate by-pass valve. Delphi Dual Diesel Electronic Throttle
Controls provide a packaging alternative for the separate by-pass valve.

The Delphi Advantage
Delphi is actively involved in the development of advanced diesel technologies. Delphi designs and
supplies complete diesel engine management systems for light duty, medium duty, and heavy duty
applications including injection systems and electronics. Delphi has 15 diesel design and engineering
centers located in Europe, Asia, North America and South America, and 21 diesel manufacturing facilities
in 13 countries enabling exceptional on-time delivery.
As a global leader in engine management systems technology, Delphi can help manufacturers around the
world meet emissions requirements, improve fuel economy and enhance performance. Delphi is a source
for high value solutions and our systems expertise is built into every product. Delphi’s flexible engineering
approach encourages collaboration. And, Delphi has a thorough understanding of markets around the
world and a global network of resources.
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