Delphi Multec 3.5 User Manual

Multec 3.5 Fuel Injector Application Manual System Interface
Delphi Energy and Chassis Systems
Revision: 11/05-1 4-3
Interface Control Document continued
To:
Chassis fuel storage
and handling
subsystem
X5
Vibration
Orientation
X5C
X8B
Verify vibration levels and
noise transmission paths to
chassis
Packaging requirements must
be met for design layout
4.2.3
4.2.2
From:
Chassis fuel storage
and handling
subsystem
X5
Fuel seal – injector to
rail seal ring
Fuel composition
Contamination
X8A
X5B
X5A
Provide for fuel seal integrity
for all applicable temperatures
and pressures between fuel
rail and fuel injector inlet
Fuel validation for compatibility
and calibration requirements
Provisions must be made for
minimization of fuel
contamination
3.3.6
2.2.6
7.3.4
From:
Underhood
Environment
X4
Ambient air flow
Road splash
X4A
X4B
Provide sufficient ambient air
flow for injector cooling
Provide protection from road
splash
4.2.1
4.2 Mechanical Interfaces
4.2.1 Locating the Fuel Injector
Properly locating the Multec 3.5 Fuel Injector on the engine contributes
to satisfactory long-term operation. The recommendations provided
below should serve as a guide for hardware planning.
Clearance
• To provide adequate air circulation to cool the injector and prevent heat
transfer from the surrounding components, e.g., fuel rails and the intake
manifold. (See Figure 4-2)
Road Splash
• Avoid mounting the fuel injector in a location where it will be exposed
to excessive road splash or where water puddling can occur.
Vibration
• Avoid metal-to-metal or plastic-to-plastic contact between the injector
and the intake manifold or fuel rail to prevent audible noise. (See
Figure 3-10)
Temperature
• Locating the fuel injector tip in the cylinder head will significantly
increase injector tip temperature, impacting hot restart performance.

Delphi Multec 3.5 Specifications

General

Brand	Delphi
Model	Multec 3.5
Category	Laboratory Equipment
Language	English