Fundamentals of Automotive Fuel Delivery Systems C0303

Topics: Powertrain & Propulsion

The key to a vehicle's overall operation is the superior, quality design of its major moving subsystems. Automotive gasoline and diesel fuel delivery systems in particular must be virtually malfunction free for all components for the entire vehicle prescribed service life. Fuel systems must be robust and precise enough to store and deliver the appropriate amount of fuel to power the engine. These stringent requirements necessitate a basic understanding of the subsystem working principles, functionalities and interrelated components.

This course provides a basic yet thorough examination of technical issues involved in automotive gasoline and diesel fuel delivery. Participants will acquire a fundamental understanding of the current technology and requirement guidelines and apply some of the principles through an in-class project and exercises. Examples of frequently encountered technical issues of fuel delivery systems shall also be discussed. The course is designed to encourage discussion, insights, and possible solutions into the engineering problems encountered in the gasoline and diesel fuel delivery systems and components.

Learning Objectives

By attending this seminar, you will be able to:

  • Organize, differentiate and interpret the fundamental concepts, features and applications of fuel delivery systems
  • Describe general gasoline and diesel fuel delivery system functionality
  • Compare and differentiate individual components comprising the subsystem
  • Identify interconnections of system components
  • Apply general gasoline and diesel fuel system requirement guidelines

Who Should Attend

You should attend if you are an engineer or engineering manager involved in design, research, testing or implementation of automotive fuel delivery systems. Engine designers, suppliers of fuels and fuel delivery system components, and polymer engineers may benefit as well.


An engineering degree in any discipline would be beneficial.

You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

  • Introduction
    • Overview
    • General expectations
  • Fundamental Fuel Delivery Systems
    • SI engine fuel delivery systems -- Gasoline; Alternative fuel
    • GDI engine fuel delivery systems -- for stratified; homogeneous; mixed combustion mode
    • Diesel engine fuel delivery systems -- Conventional unit injector system; Electronic controlled intensifier systems; High pressure common rail systems
    • Fuel Cell -- Solid oxide fuel cell; Proton exchange fuel cell
    • Advanced fuel delivery system concept -- Variable valve lifting; Cylinder deactivation
  • Fuel Types & Properties
  • Fuel Delivery Subsystem Working Principles
    • Delivery modules -- Return systems; Returnless; Mechanical returnless fuel delivery system (MRFS); Electronic returnless fuel delivery system (ERFS)
    • Fuel pump assemblies -- PFI pumps; GDI high pressure pumps; and diesel high pressure common rail (HPCR) pumps
    • Injector assemblies -- PFI injectors; GDI injectors; HEUI injectors; unit injectors; Diesel HPCR injectors and their electronic driving mechanism
    • Injection types -- Multi-point injection (MPI); Sequential multi-point injection (SMPI); Direct injection (DI); Common rail diesel injection (single injection event; Multiple injection events; Rate shaping); Homogeneous charge compression injection (HCCI) for gasoline and diesel
    • Fuel pressure regulation -- mechanical and electronic
    • Onboard refilling vapor recovery system (ORVR) and vapor management
    • Fuel level indication mechanism -- contact; non contact
    • Fuel filtration -- Pump/module inlet filtration; Inline filtration; Integrated filtration system; lifetime filters; filtration efficiency; beta value; and dirt capacity
    • Fuel delivery metering -- High pressure end; Inlet metering
  • Fuel Delivery System OEM and Government Regulatory General Requirements
    • Functionality requirements
    • FTP highway and urban cycles
    • Durability requirements
    • Safety requirements
    • Permeation requirements
    • Contamination life requirements
    • Static charge and abatement techniques
  • Fuel Delivery System and Components Evaluation and Testing Methods
    • Fuel tank
    • Fuel lines
    • Delivery module
    • Pump
    • Injector
    • Regulator
    • ORVR valve
    • Fuel level gauge
    • Fuel filter
    • Vapor canister
    • Fuel delivery driver module
    • Leak testing
    • Electrical static discharge testing
    • Permeation testing
  • Summary
Dr. Xiaojian Tao
Dr. Xiaojian Tao is Manager of Advanced Fuel Delivery and Contamination Research at the Southwest Research Institute (SwRI). His work primarily focuses on automotive fuel delivery systems and system contamination sensitivity. Dr. Tao has conducted extensive testing and research on fuel and component compatibility for OEM auto-makers and also assisted in developing key life testing procedures for fuel pumps, fuel delivery modules and many other associated components. With the help of his staff, he developed a prototype electronic controlled variable valve lifting mechanism and a fast acting fuel injection system for flexible fuels. Dr. Tao has assisted the automobile industry in revising existing fuel delivery procedures and establishing new ones. He has also successfully established mathematical models for these fuel delivery systems using nonlinear stochastic system theory. He then utilized these models to investigate the physics essentials of the interactions among contaminants, additive packages, fuels and fuel delivery system components. Dr. Tao has authored and co-authored numerous technical publications in related fields. He is a graduate of the Mechanical and Aerospace Engineering Department at Oklahoma State University.

Duration: 2 Days
CEUs: 1.3

Fees: $1299.00

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