Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Patent
1989-09-27
1991-06-04
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Turbo machine
403356, F04D 2920
Patent
active
050209710
ABSTRACT:
A rotatable shaft assembly comprises a shaft having a generally cylindrical first section and a generally cylindrical second section. The diameter of the first section is greater than the diameter of the second section. A shoulder having a generally annular face extends between the first and second sections of the shaft. A member to be mounted on the shaft, such as an impeller blade, has a face and an axial bore sized to receive the second section of the shaft and is adapted to confront the face of the first section of the shaft when the member is mounted on the shaft. The member is secured against rotation relative to the shaft by a plurality of pins. Each pin comprises a pin head and a pin shaft formed integrally with, and extending generally perpendicularly from, the pin head. A plurality of bores are formed radially symmetrically in the second section of the shaft proximate the first section and adapted to securely receive the pin shafts in a press fit. A plurality of slots are formed in the wall of the axial bore of the member. Each slot has a blind end and an open end formed in the face of the member and each slot has a shape and size complementary to the shape and size of the pin heads. The slots are adapted to align with and receive the pin heads when the pin shafts are inserted into the radial bores and the member is positioned on the shaft.
REFERENCES:
patent: 368744 (1887-08-01), Woodruff
patent: 1169513 (1916-01-01), Royle, Jr.
patent: 2332270 (1943-10-01), Shaw
patent: 2563166 (1951-08-01), Gardner
patent: 2905490 (1959-09-01), Trandel
patent: 3884595 (1975-05-01), Herrick
patent: 4572698 (1986-02-01), Rauch
patent: 4711605 (1987-12-01), Hodlewsky
Kwon John T.
Super Stream, Inc.
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