Siemens Aktiengesellschaft

Vitesco Technologies Gmbh

Continental Automotive Gmbh

Betonwerk Pfenning Gmbh

Bernd Jäger

Peter Marx

Hans-Dieter Wilhelm

Johannes Deichmann

Michael Bämpfer

Hans-Peter Osburg

Tim Gonnermann

Sabine Burhenne

Norbert Fernau

Karsten Meiser

Hendrik Jäger

A screw-spindle pump stage having a drive spindle and a running spindle which runs opposite the drive spindle and a pump housing for receiving the two screw spindles. The pump housinghas an offset interface with centering action, for a statically determined coupling to an electric motor. The pump housing has an offset section functioning as an abutment, which is able to be abutted against the electric motor for the application of an axial preload. At least one pressure region of the abutment section, which is close to the interface and, during a rolling, is encapsulated, and at the same time sealingly enclosed, by a sheet-metal casing, forms a rolling region of the pump, the screw spindles, together with the associated pump housing section, at least partially project from the rolling region of the pump on the suction side.

Screw spindle pump, fuel pump assembly, and fuel pump unit

In a feed pump (), guide vanes () fastened on a driven impeller () project into a recess () of a molding () annularly surrounding the impeller (). The guide vanes () are located with a slight clearance opposite the wall of the recess (). The guide vanes () can thereby have a particularly large surface. Moreover, a depositing of dirt in the radially outer region of the impeller () is avoided.

Delivery pump

Growing community of inventors

Fritzlar, Germany

Bernd Jäger