Turbomachinery

Details Turbomachinery Turbomachinery

1997-03-27

1999-09-07

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with axial flow runner

415200, 415143, 29447, F04D 1900

Patent

active

059476842

ABSTRACT:
A turbomachinery includes an attachment structure of an impeller to a rotational shaft which does not incur looseness even when it is subjected to temperature cycles, and which can be obtained without increasing manufacturing costs. The rotational shaft has the impeller at an end portion thereof. A cylindrical member is provided concentrically of the rotational shaft at the end portion for holding the impeller. The impeller is fitted inside the cylindrical member by shrink fitting.

REFERENCES:
patent: 3019039 (1962-01-01), Clavell
patent: 3163119 (1964-12-01), Huppert et al.
patent: 3442220 (1969-05-01), Mottram et al.
patent: 3604819 (1971-09-01), Krahe
patent: 4580943 (1986-04-01), Scully
patent: 5066547 (1991-11-01), Ishida et al.
patent: 5425618 (1995-06-01), Janigro et al.
patent: 5427501 (1995-06-01), Chu
Patent Abstracts of Japan, vol. 011, No. 344 (M-640), Nov. 11, 1987 & JP 62 124829 A (Mitsubishi Heavy Ind. Ltd.), Jun. 6, 1987 * Abstract *.
U.S. Patent Application Serial No. 08/660,580, filed Jun. 11, 1996, Hiroyuki Kato et al., located in Group Art Unit 3209, entitled "Structure for Centering and Connecting Between Members".

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