Pierburg Pump Technology Gmbh

Pierburg Ag

Frank Schwabbauer

Ronald Rathke

Mathias Zill

Enrico Lindner

Reinhard Thienelt

Martin Suswedyk

An electric exhaust gas recirculation valve for an internal combustion engine of a motor vehicle includes a motor rotor. A drive motor is configured to be mechanically commutated. The drive motor comprises a plastic carrier panel lying in a transverse plane arranged at a longitudinal end of the drive motor. The plastic carrier panel comprises, on a side facing the motor rotor, at least two commutator brushes and suppression reactance coils assigned to the at least two commutator brushes. Suppression capacitors are arranged on a side averted from the motor rotor. A valve body. A reduction gearing is connected to the drive motor. The reduction gearing is mechanically connected to the valve body.

Motor vehicle internal combustion motor exhaust gas recirculation valve having a mechanically commutated drive motor

A wet-running direct-current motor for a fuel pump having a commutator ( ) formed from carbon lamellas ( ), and carbon brushes ( ) having brush running faces ( ) which are fluted in the direction of rotation. The fluting is obtained by curved, parallel ribs of triangular cross-sections whose apexes define the brush running face. The curved ribs have radii offset from the curvature of the commutator surface, the offset being achieved by offset of the center of the radius of each rib in a direction counter to the direction of relative rotation of the commutator and brushes. The motor is rendered usable for fuel pumps of diesel engines.

Wet-running direct-current motor having fluted brush contact faces

Growing community of inventors

Hartha, Germany

Frank Schwabbauer