Pumps – Motor driven – Fluid motor
Patent
1991-07-19
1993-03-16
Bertsch, Richard A.
Pumps
Motor driven
Fluid motor
416204A, F04B 1700
Patent
active
051939894
ABSTRACT:
A turbocharger includes a compressor wheel and shaft assembly in which a threaded connection is provided between the shaft and the compressor wheel. A pair of pilot surfaces on the shaft and on the compressor wheel are located on either end of the threaded sections of the shaft and compressor wheel, and are displaced radially from the threads. Accordingly, the piloting functions which assure concentricity between the shaft and compressor wheel are kept entirely separate from the attachment function provided by the threads, thereby permitting the concentricity between the compressor wheel and shaft to be held to tighter tolerances than would be possible if the threads also performed a piloting function.
REFERENCES:
patent: 2695131 (1954-11-01), Price
patent: 3693985 (1972-09-01), Dillner
patent: 3846044 (1974-11-01), Shank
patent: 3961867 (1976-06-01), Woollenweber
patent: 4986733 (1991-01-01), Fleury et al.
Fleury Jean-Luc P.
Garcia Martin D.
Gutknecht Daniel A.
LaRue Gerald D.
Silva Kusumal J.
Allied-Signal Inc.
Antonis William N.
Bertsch Richard A.
Decker Ken C.
Thorpe Timothy S.
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