The impeller in the diagram at right is mounted on a shaft eccentrically in a round pump body which houses oil. The amount of eccentricity is directly related to the depth of the liquid ring. On each side of the impeller are port plates with inlet and discharge openings. A liquid ring is formed through centrifugal force as the impeller rotates. Our units automatically control the amount of service liquid within the pump body such that the impeller blades remain completely immersed to their root on one end and only their tips at the other. Optimum pumping is thereby attained.

When pumping is achieved, the gas to be handled is extracted through the suction port as the depth of impeller blade immersion is increased. As immersion further increases, the gas is compressed and discharged through the discharge port. With no metal to metal contact between impeller and pump body, lubrication needs are eliminated, wear is reduced to a minimum, and longevity is increased.

COMPRESSORS

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