Patent ID: 11873815
Assignee: HELLA GMBH & CO. KGAA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A vane pump comprising:
an electric drive unit with a drive shaft;
a pump chamber;
a rotor that has at least two vanes and is arranged in the pump chamber so as to rotate about a rotational axis; and
a driver that has at least one driver pin and is connected in a rotationally fixed manner to the drive shaft,
wherein, in an operating state of the vane pump, the driver pin, via a contact surface of the driver pin formed as a section of a lateral surface, engages in a torque-transmitting manner with a contact surface of the rotor delimiting a rotor recess of the rotor that corresponds to the driver pin,
wherein the driver with the driver pin is at least one of a sintered part and/or or a cast part,
wherein the contact surface of the rotor is arranged such that the rotational axis lies in the contact surface of the rotor when the contact surface of the rotor is hypothetically extended toward the rotational axis, and
wherein a demolding surface extending at an incline in a longitudinal direction of the driver pin is formed on the driver pin on a side of the lateral surface of the driver pin facing away from the contact surface of the rotor.