Housing configuration for helical bladed fluid ring pump

  • US 5,375,980 A
  • Filed: 03/21/1994
  • Issued: 12/27/1994
  • Est. Priority Date: 01/02/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. A fluid ring pump comprising:

  • an elongated pump housing having an interior surface formed by an elongated planar section with edges intervening between at least two similar elongated, curved, opposed sectors mutually joined with the edges of the intervening elongated planar section along parallel transition lines;

    a cylindrical rotor rotatably mounted within and on a housing longitudinal axis with its longitudinal axis symmetrical in relation to said sectors;

    means for rotating said rotor in a first direction;

    an inlet and an outlet in said housing for admitting and discharging the material being pumped, each at an opposite end of the rotor;

    at least one helical blade mounted on and outwardly extending from said cylindrical rotor along its length to rotate therewith and move the material axially from the inlet to the outlet of the housing;

    the interior surface of said housing facing the at least one helical blade and formed by said sectors such that the distance between said housing inner surface and the outer diameter of the said at least one helical blade varies along the length of the rotor longitudinal axis in a direction transverse to said rotor longitudinal axis; and

    each planar section of the housing interior surface extending in the direction of rotor rotation starting at the connecting transition line between adjoining sectors.

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