Impeller

Details Impeller Impeller

1990-07-25

1992-05-26

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Turbo machine

29889, F04D 2934

Patent

active

051162024

ABSTRACT:
The impeller includes a hollow shaft member screwing therein and thereto a hollow fixing shaft rotatably mounted in nozzle of a motorboat having a propeller shaft projecting into the nozzle to drive the fixing shaft, in which the shaft member has a truncated cone-shaped leading end having a cross-sectionally polygonal inner hole.

REFERENCES:
patent: 3604819 (1971-09-01), Krahe
patent: 4452591 (1984-06-01), Fishbaugh et al.
patent: 4863353 (1989-09-01), Manninen

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