Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1992-02-11
1993-06-08
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 89, 310217, 310258, H02K 518
Patent
active
052182525
ABSTRACT:
A machine assembly (10) of a first metallic part (22) having a first coefficient of thermal expansion which is mounted within a second metallic part (12) having a second coefficient of thermal expansion greater than the first coefficient of thermal expansion by an interference fit between surfaces of the parts with the first part having an outer cylindrical surface (44) and a second part having an inner cylindrical surface (24) prior to mounting with the interference fit between the surfaces in accordance with the invention includes at least three projections (26) projecting radially from one of the cylindrical surfaces at at least three equally spaced apart locations on a periphery of the cylindrical surface from which the projections project which extend axially along the one cylindrical surface with the projections forming the interference fit between the surfaces at points of contact with another of the surfaces; and wherein, the machine assembly has an operating temperature range extending from a lower temperature (-65.degree. F.) to an upper temperature (450.degree. F.) with the interference fit holding the surfaces at the upper temperature with a minimum of inward radial deflection of the inner surface between the projections and the interference fit holding the surfaces at the lower temperature with the inner surface deflecting radial inward between the projections in response to stress produced by a difference in the coefficients of thermal expansion.
REFERENCES:
patent: 2151561 (1939-03-01), Morrill
patent: 2465275 (1949-03-01), Rushing
patent: 2491943 (1949-12-01), Abbott
patent: 2496507 (1950-02-01), Watkins
patent: 2632861 (1958-03-01), Morton et al.
patent: 2818515 (1957-12-01), Dolenc
patent: 4134036 (1979-01-01), Curtiss
patent: 4514652 (1985-04-01), Olson
patent: 4520284 (1985-05-01), Wolcott
patent: 4647805 (1987-03-01), Flygare
patent: 4663553 (1987-05-01), Zimmermann
patent: 4673835 (1987-06-01), Hohnstein
patent: 4762173 (1988-08-01), Blakely
patent: 4894574 (1990-01-01), Ragaly
patent: 5072146 (1991-12-01), New
patent: 5083052 (1992-01-01), Ochi
patent: 5091666 (1992-02-01), Jarczynski
Iseman Walter J.
Johnsen Tyrone A.
Skudy R.
Sundstrand Corporation
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