Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1986-12-29
1988-08-30
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
384114, F04D 2904
Patent
active
047672650
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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Garrett Robert E.
Kwon John T.
Sargent-Welch Scientific Co.
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