Supercharger pulley isolator

Details Supercharger pulley isolator Supercharger pulley isolator

1996-12-26

1999-04-13

Koczo, Michael

Internal-combustion engines

Charge forming device

Supercharger

4182061, 464 57, 464 73, 464 92, F02B 3338

Patent

active

058933557

ABSTRACT:
A rotary blower (26) including a pair of shafts (70,56) on which are mounted a pair of rotors (28,29), input to the first shaft (70) being by way of an input pulley (76;108;201). The first shaft (70) has a forward terminal portion (72) extending forwardly of a first timing gear (60) to a location disposed within the input pulley. A torsion damping means is associated with the input pulley (76;108;201) and includes a resilient means (94;124;213) which resists relative rotation between the input pulley and the terminal portion (72) of the first shaft. The torsion damper also includes means (88,90,92;118,122;207,211) for limiting the relative rotation of the input pulley and the first shaft. The disclosed arrangement provides a more compact, less expensive input portion of the blower which eliminates the need for the conventional "third shaft" and its associated bearings.

REFERENCES:
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patent: 2521117 (1950-09-01), Du Bois et al.
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patent: 2963006 (1960-12-01), Karde
patent: 3727431 (1973-04-01), Yokel
patent: 4226095 (1980-10-01), Loken
patent: 4594992 (1986-06-01), Nakamura et al.
patent: 4782936 (1988-11-01), Bopp
patent: 4924839 (1990-05-01), Mueller et al.
patent: 5405296 (1995-04-01), Cerny et al.

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