Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing
Patent
1989-08-31
1991-01-22
Koczo, Michael
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
384107, 384112, 418 88, 418206, F04C 2906
Patent
active
049867407
ABSTRACT:
In a mechanical supercharger having rotors mounted on rotor shafts, the rotor shafts are rotationally and axially supported in the supercharger housing by first and second sliding bearings. The first sliding bearing includes an inner part fixed to each of the rotor shafts and having both a cylindrical part and a radially extending, disc-like plate part. The first bearing also includes an outer part having bores closely surrounding the cylindrical parts of the inner part and axial surface facing an axial surface of the plate parts of the inner parts. A retainer engages the outer part and encloses another axial face of the inner part to form bearing spaces into which oil can be pumped for lubricating the sliding bearing. The pump can be in the form of spiral grooves in the radially extending, disc-like plate part.
REFERENCES:
patent: 1834976 (1931-12-01), Schmidt
patent: 2726604 (1955-12-01), Aspelin et al.
patent: 2764945 (1956-10-01), Heep
patent: 2961151 (1960-11-01), Fobian
patent: 2975964 (1961-03-01), Osterkamp
patent: 3088660 (1963-05-01), Voggenthaler
patent: 4497618 (1985-02-01), Anderson et al.
patent: 4836692 (1989-06-01), Hagen
patent: 4878820 (1989-11-01), Doi et al.
Alsin Seiki Kabushiki Kaisha
Koczo Michael
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