MULTISTAGE ROTARY VACUUM PUMP Russian patent published in 1995 - IPC

Abstract SU 1786900 A1

FIELD: evacuation of aggressive gases. SUBSTANCE: two parallel shafts are installed on bearings in end covers of casing. Cam rotors mounted on shafts form successive compression stages divided by radial partitions. Drive motor is disposed on one of the shafts between end covers and gears. Housing is secured on external side of one end cover and forms a drive chamber which accommodates electric motor and synchronization mechanism. Gears are coaxially mounted on shafts. EFFECT: improved design. 1 dwg

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SU 1 786 900 A1

Authors

Odintsov N.A.

Otchik E.N.

Dates

1995-04-30—Published

1990-10-23—Filed