Side-channel pump

摘要

The invention relates to a side-channel pump for transporting fuel in a motor vehicle. Said pump comprises a partial annular channel (11) located in housing sections (4, 5), said channel having a greater radius than a crown of vane chambers (10) that are located in the impeller (6). The vane chambers (10) and the partial annular channel (11) respectively have the same width. This prevents wear and tear to the sealing surfaces.