Separate Turbine Guide Ring for Modular Fixed-Blade Flow Tuning

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Solution Overview

Problem

Existing supercharging devices with fixed guide blades lack modularity and adaptability, limiting their ability to optimize efficiency across varying operating points.

Innovation Solution

A turbine arrangement with a separate guide device comprising a carrier ring and fixed guide blades, allowing for different orientations and configurations that can be easily exchanged or integrated into various turbine housings, enhancing modularity and adaptability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If guide blades are integrated into the turbine housing, then structural stability is improved, but modularity and adaptability deteriorate

Engineering Contradiction:
Improvestructural stabilityVSAvoidmodularity and adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The guide device is segmented from the turbine housing into a separate, interchangeable component. The guide device comprises a guide body with guide blades that can be independently manufactured and installed, allowing different guide device configurations to be adapted to the same turbine housing without structural integration constraints.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If guide blades are made adjustable (VTG), then adaptability to different operating points is improved, but device complexity and manufacturing costs increase

Engineering Contradiction:
Improveadaptability to operating pointsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of making the guide blades adjustable through complex mechanical systems, the invention changes the parameter approach by providing multiple fixed guide device variants with different blade orientations and geometries. Each variant is optimized for specific operating conditions, allowing parameter adaptation through component selection rather than active adjustment mechanisms.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If guide blades are fixed in orientation, then manufacturing simplicity is improved, but adaptability to varying operating conditions deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidadaptability to operating conditions
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The guide device is designed as a universal component that can be applied to different turbine housing configurations and operating conditions. By providing multiple variants of the same basic guide device structure with different blade geometries, the system achieves multi-functionality without increasing the fundamental complexity of each individual guide device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Improves assembly efficiency, reduces costs, and allows for flexible adaptation to different uses or operating conditions by enabling the use of interchangeable guide devices with fixed blades that optimize fluid flow onto the turbine wheel.

Implementation Method 1

the guide blades are arranged on the carrier ring fixedly in a predetermined orientation... during operation, fluids are conducted from the turbine spiral through the inflow channel over the guide blades onto the turbine wheel

Methodology Applied
Scientific EffectFluid flow guidance:

Data Source

PatentUS12553354B2Turbine arrangement with separate guidance device
Publication Date: 2026.02.17 BORGWARNER INC
  • US12553354B2 patent drawing
  • US12553354B2 patent drawing
  • US12553354B2 patent drawing

AI summary

Disclosed is a turbine arrangement for a supercharging device. The turbine arrangement comprises a turbine housing, a turbine wheel and a guide device. The turbine housing defines a turbine spiral and a turbine outlet. The turbine wheel is arranged in the turbine housing between the turbine spiral and the turbine outlet. The guide device comprises a carrier ring and multiple guide blades. The guide blades are arranged on the carrier ring fixedly in a predetermined orientation. The guide device is arranged in an inflow channel between the turbine spiral and the turbine wheel such that, during operation, fluids are conducted from the turbine spiral through the inflow channel over the guide blades onto the turbine wheel.