Mechanical assembly of shaft and static pressure bearing

Details Mechanical assembly of shaft and static pressure bearing Mechanical assembly of shaft and static pressure bearing

1997-04-25

1998-09-01

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

384114, 384121, 384902, F16C 3206

Patent

active

058000666

ABSTRACT:
A mechanical assembly of shaft and static pressure bearing including a static pressure bearing mechanism formed in a shaft. The bearing mechanism includes an air supply chamber, a plurality of air conduits, a plurality of porous bodies each secured in a respective one of the plurality of air conduits, a glass layer applied on outer surfaces of the porous bodies as well as on an end face of the shaft, a plurality of pockets formed in the glass layer at positions corresponding to the air conduits, and a plurality of orifices formed in each of the plurality of pockets such that a gap formed between the glass layer and a bearing main body is communicated with the air supply chamber by the pockets, orifices and porous bodies. The pockets and orifices can be formed simultaneously by a laser machining. A distribution in pressure within a gap formed between the glass layer and a bearing main body can be uniform.

REFERENCES:
patent: 3744858 (1973-07-01), Weichsel
patent: 4715731 (1987-12-01), Tittizer
patent: 4838710 (1989-06-01), Ohta et al.
patent: 5098205 (1992-03-01), Zehndbauer et al.

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