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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5961246-A, on 5 October 1999. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003175

Structure for joining impeller to rotatable shaft

Published
Permanent URL
Classification
Industrial Motion & Power Transmission › Rotary Motion
Assignee
ISHIKAWAJIMA HARIMA HEAVY IND
Original source
US-5961246-A, the United States Patent and Trademark Office, 5 October 1999
Document SHA-256
38fdd1da8b7e4a43618a5b015f2b7a852d160a29973bf2ea7da18c89dd9e519e

There is provided a structure for joining an impeller to a rotatable shaft, including (a) a bushing through which the impeller is joined to the rotatable shaft, the bushing including a hollow cylindrical portion which is to fit into a recess formed with the impeller and into which the rotatable shaft is to fit, (b) a first joint structure for joining the bushing to the impeller so that the bushing is positioned coaxially with the impeller, and (c) a second joint structure for joining the rotatable shaft to the bushing so that the rotatable shaft is positioned coaxially with the bushing. The structure provides a sufficient ability for transferring a torque between an impeller and a shaft, self-aligning performance between an impeller and a shaft, and good serviceability for assembling and disassembling, and further provides higher accuracy in axially positioning an impeller and a shaft and lower fabrication costs.

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Abstract

There is provided a structure for joining an impeller to a rotatable shaft, including (a) a bushing through which the impeller is joined to the rotatable shaft, the bushing including a hollow cylindrical portion which is to fit into a recess formed with the impeller and into which the rotatable shaft is to fit, (b) a first joint structure for joining the bushing to the impeller so that the bushing is positioned coaxially with the impeller, and (c) a second joint structure for joining the rotatable shaft to the bushing so that the rotatable shaft is positioned coaxially with the bushing. The structure provides a sufficient ability for transferring a torque between an impeller and a shaft, self-aligning performance between an impeller and a shaft, and good serviceability for assembling and disassembling, and further provides higher accuracy in axially positioning an impeller and a shaft and lower fabrication costs.

1. Drawings

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003175, “Structure for joining impeller to rotatable shaft,” published September 15, 2026 at 19:43:56 UTC, https://opentechnical.org/p/OT-2026-000003175.

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This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.