Patent ID: 11867172
Assignee: HEISHIN LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A uniaxial eccentric screw pump comprising:
a rotor including a male threaded shaft body;
a stator having a female threaded through hole through which the rotor is inserted;
a casing connected to one end side of the stator;
an end stud connected to the other end side of the stator; and
a position adjusting member that adjusts a relative position of the stator with respect to the rotor in an axial direction, wherein:
an outer diameter of the rotor decreases in the axial direction;
an inner diameter of the through hole of the stator decreases according to the change in the outer diameter of the rotor; and
an eccentricity of the rotor changes in the axial direction, and an amount of the eccentricity of the rotor increases from a large-diameter side toward a small-diameter side of the rotor.