Patent · US Active

Vane pump

US11873815B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

Hella GmbH & Co. KGaA · DE

Inventors

Sascha Bruemmer · Lippstadt, DE
Sebastian Gajda · Lippstadt, DE
Georg GOESSMANN · Sankt Meinolf, DE
Theodor Hueser · Geseke, DE
Christian KOESTER · Warstein, DE
Dennis Marburg · Lippstadt, DE
Christian Praest · Texas, DE

Key dates

Filing date	Mar 9, 2022
Grant date	Jan 16, 2024
Priority date	—
Expiry date	Mar 9, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D1/0876
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A vane pump having an electric drive unit with a drive shaft, a pump chamber, a rotor 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, by way of a contact surface of the driver pin designed as a section of a lateral surface, engages in a torque-transmitting manner with a contact surface of the rotor delimiting a rotor recess designed to correspond to the driver pin. In order to improve a vane pump, it is proposed that the contact surface of the rotor is designed and arranged in such a manner that the rotational axis lies in the contact surface when this contact surface is hypothetically extended toward the rotational axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.