A screw pump (1) comprises a body (2) which has a cylindrical duct (12) formed therein. A screw shaft (10) is located in the cylindrical duct (12) and is arranged to transport liquid between an inlet (18) and an outlet (20) of the screw pump (1). The screw shaft (10) has a screw thread (11) which defines a helical liquid path (16) within the cylindrical duct (12). The body (2) of the screw pump (1) includes a groove (26) extending along an inside surface (12a) of the cylindrical duct (12), the groove (26) defining, in part, a ball-passage (24) which extends alongside the screw shaft (10) and intersects with the helical liquid path (16). The ball-passage (24) contains a plurality of balls (22) which are guided along the ball-passage (24) by the screw thread (11) when the screw shaft (10) rotates relative to the body (2).


    Access

    Download


    Export, share and cite



    Title :

    SCREW PUMP


    Additional title:

    SCHRAUBENPUMPE
    POMPE À VIS


    Contributors:

    Publication date :

    2018-06-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten



    Screw pump

    VERMANDE FRÉDÉRIC | European Patent Office | 2021

    Free access

    VESSEL SCREW, PUMP SCREW OR TURBINE SCREW

    GERARDUS AUGUSTINUS MARIA MANSHANDEN | European Patent Office | 2019

    Free access

    Ship Screw, Pump Screw or Turbine Screw

    MANSHANDEN GERARDUS AUGUSTINUS MARIA | European Patent Office | 2018

    Free access

    Ship screw, pump screw or turbine screw

    MANSHANDEN GERARDUS AUGUSTINUS MARIA | European Patent Office | 2018

    Free access

    Ship screw, pump screw or turbine screw

    MANSHANDEN GERARDUS AUGUSTINUS MARIA | European Patent Office | 2017

    Free access