Sharing our knowledge and insights.

Wherever you are in the world, join us for a virtual training event, or request in-person training. We delve into all aspects of turbos including matching, operating environments, design, analysis, testing and qualification of turbochargers and their components. We focus on the “how” and “why”, not on stuff you can Google.

Review our training courses listed below, and fill out the form at the bottom of this page to receive additional information such as scheduling and pricing. If you don’t see the topic you are looking for, ask and we can customize training for your specific needs.

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Turbocharge Your Turbo Knowledge!

 

Design of Machined Castings

  • Factors to Consider During Design

  • Casting Methods

  • Datums and Their Usage

  • Draft and Parting Line

  • Making and Using Cores

    • Core Float

    • Core Alignment

    • Pullable and Side Action

  • Wall Thickness

  • Sources of Error in the Final Part

  • Linking the Casting to First Machined Op

  • Sequence of Machining Operations

  • Compressor Housing Design

    • Permanent Mold

    • Die Cast

  • Turbine Housing Design

    • Free Floating Open

    • Free Floating Divided

    • Wastegated Open

    • Wastegated Divided

    • Variable Geometry

  • Bearing Housing Design

    • Integral Backplate

    • Separate Backplate

  • Modal Analysis

 

Compressor Aerodynamics

  • Basics of Compressor Aerodynamics

    • Nomenclature

    • Pressure Rise Through Compressor Stage

    • Inlet and Exit Velocity Triangles

    • Using Velocity Triangles

    • Effect of Backsweep

    • Slip Factor

    • Temperature Rise across Impeller

    • Specific Speed, Specific Diameter

    • Balje Curve

    • Impeller Inducer

    • Inducer Stall

    • Optimum Inducer Incidence

    • Maximum Mass Flow

    • Weisner Slip Factor

    • Blade Loading

    • Vaneless Diffusers

    • Trimming

  • Compressor CFD using StarCCM+

    • What is going to be modeled?

    • Physics and Continua

    • Standard Inlet and Outlet Boundary Conditions

    • Setting up Regions

    • Importing Model

    • Meshing

    • Reports, Monitors, and Plots

    • Solving the Inlet/Outlet Boundary Condition issue

    • Meaningful Surge Determination

  • Testing

    • Problems with Historical Methods

      • Heat transfer

      • Thrust Loading

      • Impact of Bearings

    • Alternative Test Methods

    • Testing On-Engine

    • Instrumentation Do’s/Don’ts

    • Measured and Calculated Parameters

    • Control and Feedback Parameters

    • Stabilization of Control

    • Stabilization of Measurement

    • Surge and Instability

 

Design of Compressor and Turbine Seals

  • Basics of Seals

    • Oil Sealing

    • Blow-by

    • Design of Seal Ring/Stress Analysis

    • Free-Body of Seal Ring with Forces

  • Advanced Seals

    • Turbine Step Bore

    • Flingers

    • Oil Drainage

    • Managing the Pressure Differential

    • Multiple Seal Rings

  • Testing and Qualification

    • Compressor

    • Turbine

 

Engine Matching

  • Continuous versus Discontinuous Flow

  • Compressor and Turbine Parameters

    • What They Mean and How to Use Them

  • Compressor maps

    • How to use them

    • Limitations

  • Categories of Engines and the Effect on the Matching Process

  • Manual, Iterative Method of Matching a Compressor

  • Characteristics of Engine Speed Lines and Lug Lines on a Compressor Map

  • Effect of Altitude on the Match

  • How to Match with HPL EGR and LPL EGR

  • Types of Turbines

  • Special Considerations for Corrected or Reduced Flow

  • Impact of Pressure and Temperature on Corrected Flow

  • Blade Speed Ratio and its Impact on Turbine Efficiency

  • Wastegated Turbine Matching

  • VGT Matching

  • Engine Testing

    • Instrumentation

    • Assuring Apples-to-Apples Comparison

    • Heat Transfer

 

Coming Soon!

Turbine Aerodynamics

 

Coming Soon!

Turbocharger Noise Mechanisms

 

  • Historical Qualification Process

  • Hydrodynamic Bearing Principle

  • Types of Floating Ring Bearings

  • Critical Speeds

  • Types of Motion

    • Synchronous

    • Sub-Synchronous

    • Super-Synchronous

  • Qualification Criteria

  • Types of Unbalance

  • Bearing Clearances and 4 Corner Box

  • Shaft Motion Instrumentation

  • Shaft Motion Test Procedure

  • Modeling Rotor Bearing System in DyRoBeS

  • Linear Analysis

    • Critical Speeds and Modes

    • Whirl Speeds and Modes

    • Bearing Stiffness and Damping

    • Critical Speed Map with Bearing Characteristics

  • Non-Linear Analysis

    • Transient Response

    • Waterfall Charts

    • Fixtures and Mounting

    • Aerodynamic Cross-Coupling

    • Impact of Fully Floating Bearing Speed

      • Modeling

      • Measuring

  • DIY

    • Build Your Model—Bearings and BePerf

    • Build Your Model—Rotor

    • Linear Analysis

    • Non-Linear Analysis

Rotordynamics and Shaft Rotation

 

Coming Soon!

Variable Geometry Turbines

Get in touch.

Whether you prefer an in-person, hands-on experience or virtual training session to review ideas and concepts, we’re here to help you grow in eductation and understanding.