Double wrap dry scroll vacuum pump having a compressed gas cooli

Pumps – Motor driven – Electric or magnetic motor

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Details

418 552, 418 94, F04B 1700

Patent

active

061494054

ABSTRACT:
A double-wrap dry scroll vacuum pump for use as a vacuum pump for nuclear power equipment. The pump has a pump body including a suction port capable of being communicated with a vessel to be evacuated and a discharge port for discharging wrap compressed gas to an outside of the pump body after an operation of gas compression by the progressive volume reduction of a sealed space, formed by a revolving scroll and a pair of stationary scrolls. The pump further includes a pair of enclosing members which cover opposite end portions of a drive shaft and are mounted in a gas-tight state around the revolving scroll. The pump has compressed gas feed ports for feeding compressed gas therethrough to the enclosing members, the compressed gas having a higher pressure than the wrap compressed gas and is discharged together with the wrap compressed gas through the discharge port. To attain high performance and durability, the double-wrap dry scroll vacuum pump has a gas bearing in fluid communication with the compressed gas feed ports to rotatably support the drive shaft. A contact-less torque transmission means is implemented for transmitting torque from a driving source to the drive shaft.

REFERENCES:
patent: 4192152 (1980-03-01), Armstrong et al.
patent: 4424010 (1984-01-01), McCullough
patent: 4802831 (1989-02-01), Suefuji et al.
patent: 5024589 (1991-06-01), Jetzer et al.
patent: 5037278 (1991-08-01), Fujio et al.
patent: 5145344 (1992-09-01), Haga et al.
patent: 5258046 (1993-11-01), Haga et al.
patent: 5443374 (1995-08-01), Yoshii et al.
patent: 5584678 (1996-12-01), Hirooka et al.
patent: 5743719 (1998-04-01), Haga et al.
patent: 5755564 (1998-05-01), Machida et al.
patent: 5842843 (1998-12-01), Haga

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