Process for operating a dry-compression vacuum pump as well as a

Details Process for operating a dry-compression vacuum pump as well as a Process for operating a dry-compression vacuum pump as well as a

1997-11-03

1999-11-02

Freay, Charles G.

Pumps

Processes

417 63, F04B 4908, F04B 4910

Patent

active

059758570

ABSTRACT:
A process for operating a dry-compression vacuum pump with at least one pump chamber and at least one rotor driven by an electric motor, and to a vacuum pump suitable for this operating process. To reduce operational shutdowns for maintenance purposes without any risk to the pump, it is proposed that application-specific phenomena leading to deviations from the normal operating status or their effects be monitored and, after a predetermined deviation quantity has been attained at which operation of the vacuum pump could be adversely affected in future, steps be taken to remove the causes thereof.

REFERENCES:
patent: 3910040 (1975-10-01), Garcea
patent: 4789314 (1988-12-01), Higuchi et al.
patent: 4943215 (1990-07-01), Berges
patent: 5131825 (1992-07-01), Bachmann et al.
patent: 5329465 (1994-07-01), Arcella et al.
patent: 5356275 (1994-10-01), Brenner et al.
patent: 5475619 (1995-12-01), Sugano et al.
Patent Abstracts of Japan, vol. 9, No. 316(M-438)(2039) Dec. 12, 1985 & JP,A,60 150 491 (Ebara Seisakusho K.K.) Aug. 8, 1985.

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