Compressor Airfoil Profile Defined by Non-Dimensional Coordinates
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Solution Overview
Problem
Current airfoil designs for turbomachinery, such as compressors, face challenges in achieving optimal efficiency, reducing vibratory response, and meeting mechanical and aerodynamic loading requirements, which affects the reliability and cost-effectiveness of the compressor.
Innovation Solution
The airfoil profile is defined by non-dimensional Cartesian coordinate values that can be scaled to create a nominal airfoil shape for both suction and pressure sides, allowing for smooth connection of sections at each Z height to form a complete airfoil shape, ensuring efficient and reliable operation across various compressor designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a compressor airfoil profile is designed to meet thermal and mechanical operating requirements, then reliability and component lifetime are improved, but the design complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies parameter changes by providing specific coordinate values (X, Y, Z) that define the airfoil profile geometry. These parameters are optimized to meet thermal and mechanical operating requirements while maintaining manufacturability. The coordinate system and dimensional specifications allow for precise control of the airfoil shape to achieve desired performance characteristics.
2Adaptability or versatility
If the airfoil profile uses non-dimensional Cartesian coordinate values that can be scaled, then adaptability to different compressor designs is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses non-dimensional Cartesian coordinate values that can be scaled by a multiplying factor to create airfoil profiles for different compressor sizes. This parameter approach allows the same geometric profile to be adapted across multiple applications while maintaining consistent aerodynamic characteristics. The scaling capability provides versatility without requiring separate designs for each application.
3Productivity
If the airfoil sections at each Z height are joined with continuing arcs to form a complete airfoil shape, then aerodynamic efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent specifies that airfoil sections at each Z height are joined with continuing arcs to form a smooth, complete airfoil shape. This curvature approach ensures continuous surface geometry without sharp transitions, which improves aerodynamic efficiency by reducing flow separation and turbulence. The arc-based joining method creates a streamlined profile that optimizes airflow characteristics through the compressor.
Data Source
AI summary
An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in scalable Table 1 wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.