Radial Compressor Iris Mechanism for Surge-Stable Map Shifting

The patent applies the dynamics principle by implementing a variable geometry inlet guide vane system that can dynamically adjust the airflow angle and magnitude. This allows the compressor to adapt its performance characteristics in real-time, enabling a reduced moment of inertia design to respond quickly while the variable geometry maintains wide map width and peak efficiency across different operating conditions.

The patent employs parameter changes by varying the inlet guide vane angle and airflow parameters to shift the compressor operating map. This enables the compressor to maintain optimal performance across a wide range of operating points, resolving the contradiction between reduced moment of inertia for fast response and maximized map width for versatility.

The patent uses dynamics by implementing a variable inlet cross-section mechanism that can adjust the flow area in real-time. This allows the compressor to shift its operating map towards lower mass flow rates when needed while maintaining the capability to operate across a wide range of flow rates, thus preserving both productivity positioning and overall operating range.

The patent applies segmentation by dividing the inlet flow control into multiple adjustable sections or stages. This enables independent control of different flow paths, allowing the compressor to optimize mass flow rate positioning in specific operating regions while maintaining versatility across the entire operating range through coordinated adjustment of segmented control elements.

The patent applies universality by designing the recirculation channel to serve multiple functions: it broadens the usable operating range by enabling surge line extension, simultaneously acts as a flow control mechanism for map shifting, and integrates with the variable geometry system to provide coordinated control. This multi-functionality broadens operating range while minimizing additional structural complexity.

The patent merges the recirculation channel functionality with existing compressor components and control systems. By integrating the recirculation path into the overall variable geometry control architecture, the patent achieves broadened operating range without proportionally increasing device complexity, as shared control mechanisms manage multiple functions.