Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1985-08-20
1987-06-23
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
384114, F04D 2904
Patent
active
046749527
ABSTRACT:
A single ended turbomolecular vacuum pump operable in the free molecular flow pressure range having an improved bearing assembly between the motor rotor and the pump rotor discs is disclosed. The improved bearing assembly which is of the "plain" or "sleeve" liquid lubricated type has a relatively high ratio of journal diameter to bearing axial length. The improved bearing assembly is characterized by improved heat transmission capabilities, high tolerance for misalignment and long life.
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Article entitled "Journal or Sleeve Bearings"-excerpt from Machinery's Handbook, Industrial Press, Inc., 1980, pp. 561-575.
Article entitled "Fluid Film Bearings"-excerpted from Mark's Standard Handbook for Mechanical Engineering, Eighth Edition, McGraw Hill Book Company, pp. 8-120 through 8-126.
Article entitled "Turbomolecular Vacuum Pumps", excerpted from Methods of Experimental Physics, vol. 14, Academic Press, Inc., 1979, pp. 247-273.
Garrett Robert E.
Kwon John
Sargent-Welch Scientific Company
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