Bearings – Rotary bearing – Plain bearing
Patent
1986-05-05
1987-06-09
Levy, Stuart S.
Bearings
Rotary bearing
Plain bearing
277 17, 277 80, 277135, 384 8, 384100, 384446, F16C 3382, F16C 3372, F16J 1540, B65D 5306
Patent
active
046716793
ABSTRACT:
Provides new magnetic fluid bearings and magnetic fluid seals incorporating a pressure responsive system for automatically controlling the supply of magnetic fluid to the magnetic fluid feed area of such bearing or seal. The system for controlling the supply of magnetic fluid includes a reservoir of magnetic fluid and a conduit leading from the reservoir to the magnetic fluid feed area of the magnetic fluid bearing or magnetic fluid seal. A portion of the conduit is subjected to a magnetic field which establishes a pressure responsive magnetic fluid plug in that portion of the conduit to automatically control the flow of magnetic fluid to and from the reservoir as a function of the difference in pressure between the magnetic fluid feed area of the bearing or seal and the reservoir.
REFERENCES:
patent: 2863538 (1958-12-01), Jaeschke
patent: 3708215 (1973-01-01), Wilcock et al.
patent: 3746407 (1973-07-01), Stiles et al.
patent: 4304411 (1981-12-01), Wilcock et al.
patent: 4335885 (1982-06-01), Heshmat
patent: 4407518 (1983-10-01), Moskowitz
patent: 4527802 (1985-07-01), Wilcock et al.
patent: 4545587 (1985-10-01), Higgins
Claeys Joseph V.
Hannon Thomas R.
Helzer Charles W.
Levy Stuart S.
Mechanical Technology Incorporated
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