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The exhaust gas recirculation (EGR) system components are highlighted to represent their positioning around the engine of a vehicle.

Exhaust Gas Recirculation (EGR) System Basics

The Exhaust Gas Recirculation (EGR) System Basics course provides learners with an understanding of the major components used in an EGR system, the basic operating principles of an EGR system, and the common failure modes. Ready to take the next step? Explore the course details and see everything we’ve packed into this program!

Learning Hours: 2

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Course Description

The THORS Exhaust Gas Recirculation (EGR) System Basics course explores the components that allow the EGR system to function. This course provides a visually engaging learning experience that shows the operation of an EGR system and the various failure modes.

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Who will benefit from this EGR Systems course?

Quality, manufacturing, product engineering, designing, testing, application, purchasing, management, and sales functions at organizations that require an understanding of EGR systems.

Course Classification

This manufacturing course by THORS eLearning Solutions covers identification of key terms and understanding of key concepts.

*THORS uses the Bloom’s Taxonomy Methodology for our course development.

Certificate Awarded for Exhaust Gas Recirculation (EGR) System Basics

Example of certificate awarded upon successful completion of the course.

*upon successful completion

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Learning Objectives

  1. Identify the various EGR valve types.
  2. Understand the importance and operation of an EGR cooler.
  3. Recall the various EGR mass measurement devices.
  4. Define the style of the EGR system used in a vehicle.
  5. Determine the location of the EGR valve.
  6. Explain the EGR system failure modes.

The gas flow through the exhaust gas recirculation (EGR) system components is illustrated.

Exhaust Gas Recirculation (EGR) System Basics

Table of Contents

  1. EGR System Components
    1. EGR Valve
      1. EGR Valve Types
        1. Butterfly Valve
        2. Dual Poppet Valve
        3. Single Poppet Valve
      2. Valve Actuation
        1. Electric Actuation
        2. Pneumatic Actuation
        3. Hydraulic Actuation
      3. EGR Bypass Valve
    2. EGR Cooler
      1. EGR Cooler Components
      2. EGR Cooler Types
        1. Inline Cooler
        2. U-Type Cooler
    3. EGR Mass Measurement Devices
      1. Mass Air Flow (MAF) Measurement
        1. Low Pressure MAF Sensor
        2. High Pressure MAF Sensor
      2. Differential Pressure Mass Measurement
        1. EGR Venturi
        2. EGR Orifice
    4. EGR Temperature Sensor
    5. EGR Plumbing and Crossover Tubes
  2. EGR System Operation
    1. EGR System Types
    2. EGR System Working Principle
      1. Precooler
      2. Post Cooler
    3. EGR System Management
      1. Data-Linked Communication
      2. Non-Data-Linked Communication
    4. EGR System Failure Modes
      1. EGR Valve Sticking
      2. EGR Cooler Failure
        1. Clogged EGR Cooler
        2. EGR Cooler Leakage
      3. EGR Mass Measurement Failure

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