Oil-free scroll vacuum pump having a gas ballast part

Details Oil-free scroll vacuum pump having a gas ballast part Oil-free scroll vacuum pump having a gas ballast part

1996-07-17

1998-04-28

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 551, 418 552, 418 60, F04C 1804, F04C 2502

Patent

active

057437190

ABSTRACT:
It is sought to provide an oil-free scroll vacuum pump, which can discharge condensed fluid in it to the outside. An oil-free scroll vacuum pump body 1 for withdrawing fluid from a vessel to be evacuated, compressing the fluid and discharging the compressed fluid to the outside, comprises a stationary scroll constituted by a housing half 4 and a wrap 7, another stationary scroll constituted by a housing half 5 and a wrap 6, and a revolving scroll 3. The housing half 4 has a gas ballast gas inlet duct 10 and an inlet port 4a, and the revolving scroll 3 has a communication hole 3e. Gas is introduced through the inlet port 4e into a sealed space defined by wraps of the individual scrolls engaged with one another. The introduced gas is compressed together with compression fluid in the sealed space, and the resultant fluid is discharged through a discharge port 4c to the outside.

REFERENCES:
patent: 2885143 (1959-05-01), Dubrovin
patent: 3677664 (1972-07-01), Wycliffe et al.
patent: 3802809 (1974-04-01), Vulliez
patent: 4407641 (1983-10-01), Long
patent: 5258046 (1993-11-01), Haga et al.

Affiliated with

Also associated with

Rating

Oil-free scroll vacuum pump having a gas ballast part does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil-free scroll vacuum pump having a gas ballast part, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil-free scroll vacuum pump having a gas ballast part will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1527076