Structure of a rotor shaft and method of making same

Details Structure of a rotor shaft and method of making same Structure of a rotor shaft and method of making same

1991-09-27

1993-07-13

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

With runner shaft of specific shape or material

418179, 418328, 418112, 2940213, 2940216, F04D 2904

Patent

active

052267911

ABSTRACT:
In an apparatus accommodating a rotor of light alloy and a rotor shaft of steel secured to each other, the rotor shaft consists of a first shaft and a pair of second shafts integrally formed with or rigidly secured to the first shaft. The first shaft has a structure with a thermal coefficient of expansion close to that of the rotor whereas each of the second shafts has a structure with a thermal coefficient of expansion less than that of the first shaft.

REFERENCES:
patent: 1745854 (1930-02-01), Lawaczeck
patent: 3048505 (1962-09-01), Doepken
patent: 3337376 (1967-09-01), Grange
patent: 3470037 (1969-10-01), Suzuki
patent: 4302658 (1981-11-01), Beigay
patent: 4971536 (1990-11-01), Takeda et al.

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