Gas separation: processes – Deflecting – And filtering
Reexamination Certificate
1998-01-08
2001-03-27
Smith, Duane S. (Department: 1724)
Gas separation: processes
Deflecting
And filtering
C055S337000, C055S421000, C055SDIG001
Reexamination Certificate
active
06206953
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a fluid separator and more specifically to an oil/water/air separator for a compressed gas unit which separates oil/water from air during the condensate drain cycle of the compressor so that the oil/water can be collected and the air can be dumped to atmosphere.
BACKGROUND OF THE INVENTION
In conventional systems for compressing a gaseous fluid, a liquid, for example oil, is added to the gaseous fluid as a byproduct of the compressor lubrication system. In addition water is present in the ambient air and is condensed as a part of the compression process. These liquids must be removed in a separating unit prior to the compressed gaseous fluid being delivered to the consumer. Environmental concerns have dictated that any air exhausted to the atmosphere must also be free of oil/water so that the air must be filtered and the oil/water mixture separated from the air during the drain cycle of the compressor.
SUMMARY OF THE INVENTION
The present invention relates generally to a fluid separator for separating a liquid such as oil or water from air delivered from a compressor during the condensate drain cycle of the compressor. The separator includes a housing having an inlet and an outlet. The inlet is configured so as to impart a swirl to a gaseous fluid which enters the inlet. The separator also includes a means to change the direction of the flow of the gaseous fluid. The separator also includes a first filter within the housing in the path of the fluid flow and a second filter within the housing between the first filter and the outlet of the housing. Means for collecting the separated liquid are also provided.
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