Impeller and pump device
The impeller design with a tapered suction port and compatible shrouds maintains performance and allows component sharing, addressing the challenge of accommodating increased inner diameters in impeller designs.
JP2026023216APending Publication Date: 2026-02-13KAWAMOTO SEISAKUSHO KK
Patent Information
- Application Number
- JP2024125060
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2026-02-13
AI Technical Summary
Technical Problem
Impellers designed to accommodate increased inner diameters for components like liner rings and guide vanes often fail to achieve required performance, necessitating separate components for each configuration.
Method used
An impeller design featuring a disk-shaped rear shroud, circumferentially arranged blades, and a front shroud with a tapered suction port that gradually reduces in diameter from the tip toward the blades, allowing compatibility with existing components while maintaining performance.
Benefits of technology
Ensures performance consistency even with increased inner diameters, enabling sharing of components like guide vanes and liner rings across different impellers, and reduces cavitation by smoothly introducing fluid flow.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026023216000001_ABST
Abstract
To provide an impeller and a pump device capable of using parts in common SOLUTION: The impeller 30 includes a disk-shaped rear shroud 31, a plurality of blades 33 disposed along the circumferential direction of the rear shroud 31 and fixed to the rear shroud 31, and a front shroud 32 in which a suction port 32b whose inner peripheral surface is gradually reduced from a tip toward the blades 33 is formed, the front shroud 32 being disposed to face the rear shroud 31 and fixed to the plurality of blades 33.SELECTED DRAWING: Figure 4
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Citation Information
Patent Citations
Manufacturing method of impeller for pump and pump formed by using impeller
JP2001355595A