POWERTRAIN SYSTEMS

Delphi Multec® GDi Multi-Hole Fuel Injectors
Delphi Multec® GDi Multi-Hole Fuel Injectors are designed for
homogeneous combustion gasoline direct injection engine
applications. This family of flexible packaging and performanceoptimized injectors features an inwardly opening valve group and
a multi-hole spray generator.
The Multec 10 GDi Injector is capable of high pressure, up to 200
bar nominal system pressure with maximum 230 bar. The Multec
12 GDi Injector is capable of 200 bar nominal pressure with
maximum pressure of 260 bar. Additional enhancements are
available with the Multec 12.1 GDi Injector, which offers improved
high pressure, multi-pulse operation of 250 bar nominal and 320
bar maximum, and reduced minimum fuel capability.

Benefits
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Moving mass emits 1 dB lower acoustic noise than the rest of
the industry
Excellent fuel deposit robustness
Valve group provides PZEV-capable fuel seal
Flexible spray pattern with low penetration reduces fuel
impingement on cylinder walls and allows flexible mounting
Corrosion resistance, flow performance, and linear range to
accommodate the requirements of ethanol-blended fuels
Magnetic circuit is compatible with 50 V to 65 V boost voltage
Decoupled armature allows up to 260 bar operating pressure
with minimal driver energy
Faster response times allow smaller injection quantity and
greater working flow range
Can operate with dwell times as low as 0.5 msec during multiinjection operation for Euro 6 particulate emissions number
Multec 12 Injector can operate with dwell times as low as 0.5
msec during multi-injection operation for Euro 6 particulate
emissions. Multec 12.1 can operate at 0.4 msec dwell time
Multec 12.1 offers reduced energy consumption

Delphi Multec® GDi Multi-Hole Fuel Injector

Typical Applications
Delphi Multec GDi Multi-Hole Fuel Injectors can be applied to
any size gasoline engine, from small displacement turbocharged engines to large displacement engines, including
central mount applications. The small particles in the spray
allow optimum charge distribution for reduced emissions on
cold start and for future combustion processes such as
gasoline homogeneous charge compression ignition (HCCI).

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The Delphi Multec® GDi Multi-Hole Fuel
Injector tip is designed for fuel deposit
robustness.

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