An automotive liquid pendulum vane pump comprising a pump housing , a rotatable rotor ring , a rotatable and non-shiftable rotor hub comprising numerous substantially radial vane slots , and numerous pendulum vanes mechanically connecting the rotor ring and the rotor hub , each pendulum vane comprising: a circular pendulum head defining a pendulum hinge together with a corresponding circular undercut recess at the rotor ring , a circular pendulum foot arranged radially shiftable and pivotable in the corresponding vane slot , and a vane leg connecting the pendulum head and the pendulum foot , characterised in that a contact slot wall of the vane slot is provided with a tangential contact nose in the opening region of the vane slot , and is a generally plane contact slot wall, wherein the pendulum vane is provided with a contact path with a contact path surface being in contact with the contact nose in a rotational contact sector (CO), wherein the radial inner end of the contact path surface defines an inner tangential projection , wherein the generally plane contact slot wall is provided with a diving recess , wherein the inner tangential pendulum projection temporarily dives into the diving recess , and wherein a mechanical contact between the inner tangential projection of the pendulum vane and the contact slot wall is always avoided, independent of the rotational position and the eccentricity. a pump housing , a rotatable rotor ring , a rotatable and non-shiftable rotor hub comprising numerous substantially radial vane slots , and numerous pendulum vanes mechanically connecting the rotor ring and the rotor hub , each pendulum vane comprising: a circular pendulum head defining a pendulum hinge together with a corresponding circular undercut recess at the rotor ring , a circular pendulum foot arranged radially shiftable and pivotable in the corresponding vane slot , and a vane leg connecting the pendulum head and the pendulum foot , characterised in that a contact slot wall of the vane slot is provided with a tangential contact nose in the opening region of the vane slot , and is a generally plane contact slot wall, wherein the pendulum vane is provided with a contact path with a contact path surface being in contact with the contact nose in a rotational contact sector (CO), wherein the radial inner end of the contact path surface defines an inner tangential projection , wherein the generally plane contact slot wall is provided with a diving recess , wherein the inner tangential pendulum projection temporarily dives into the diving recess , and wherein a mechanical contact between the inner tangential projection of the pendulum vane and the contact slot wall is always avoided, independent of the rotational position and the eccentricity. a circular pendulum head defining a pendulum hinge together with a corresponding circular undercut recess at the rotor ring , a circular pendulum foot arranged radially shiftable and pivotable in the corresponding vane slot , and a vane leg connecting the pendulum head and the pendulum foot , characterised in that a contact slot wall of the vane slot is provided with a tangential contact nose in the opening region of the vane slot , and is a generally plane contact slot wall, wherein the pendulum vane is provided with a contact path with a contact path surface being in contact with the contact nose in a rotational contact sector (CO), wherein the radial inner end of the contact path surface defines an inner tangential projection , wherein the generally plane contact slot wall is provided with a diving recess , wherein the inner tangential pendulum projection temporarily dives into the diving recess , and wherein a mechanical contact between the inner tangential projection of the pendulum vane and the contact slot wall is always avoided, independent of the rotational position and the eccentricity. <EOS>