POWERTRAIN SYSTEMS

Delphi Multec® Compressed Natural Gas Injector
The Delphi Multec® Compressed Natural Gas (CNG) Injector is
another advanced technology in Delphi’s portfolio of multi-port fuel
injectors. It offers engine manufacturers excellent cost efficiency and
robustness. The injector is optimized for compatibility with CNG and
other alternative fuels to harness their significant greenhouse gas
emissions reduction potential. Its tailored design allows efficient
engine operation with low energy density fuel systems that require
high gas volumes and flow velocities. The injector can be operated
with a conventional gasoline engine control module, enabling low
cost implementation.
Delphi also offers manufacturers CNG-compatible mono-fuel, bi-fuel
and tri-fuel engine management systems that include injectors,
engine control modules, tailored software and algorithms, high
energy ignition coils, electronic throttle control and exhaust sensors.
CNG Benefits

Lower fuel cost significantly reduces consumer operating expense
Facilitates CO2 reduction by up to 25% and zero particulate
emissions

Delphi Multec® Compressed Natural Gas
Injector

Injector Benefits

Optimal fuel metering: high flow capacity at pressures up to 9 bar, superior linear flow range, accuracy, and stability
Low operating noise
High wear resistance, particularly in lubricant-free gaseous fuel operation, up to 400 million cycles with CNG
Compatible with conventional engine controllers
High impedance injector allows use of lower cost “saturated switch” injector driver

Typical Applications
The Delphi Multec Compressed Natural Gas Injector is designed specifically for port fuel injection engines
that operate on gaseous fuels, including: compressed natural gas, propane, and liquefied petroleum gas. It
is suitable for gasoline bi-fuel engine programs.
Availability
The Delphi Multec Compressed Natural Gas Injector is in serial production. Manufacturers should contact
Delphi for further information and engineering samples.
Performance Advantages
The Delphi Multec Compressed Natural Gas Injector is compatible with conventional port fuel injection
engine controllers equipped with saturated switch drives, which help reduce system cost by eliminating the
need for a secondary or higher cost, specialized engine controller.

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