Fluid rotating apparatus

Details Fluid rotating apparatus Fluid rotating apparatus

1992-12-10

1994-10-11

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

In response to pump speed

417 45, 417203, 417205, 417250, 4174103, 4182011, F04C 2300, F04D 1904

Patent

active

053541790

ABSTRACT:
A fluid rotating apparatus according to the present invention is designed to promptly achieve an extremely high degree of vacuum from atmospheric pressure by its single apparatus. Moreover, high-speed synchronous rotation of the rotary shafts of the apparatus is controlled by use of a rotary position detecting sensor, to thereby avoid control through mechanical contact thereof with a gear or the like. In addition, hydrostatic bearings are employed for supporting the rotary shaft to avoid mechanical abrasion and the use of lubricant oil.

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