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Patent Searching and Data

Document Type and Number:
Japanese Patent JP2004522627
Kind Code:
The invention relates to a screw pump comprising an inlet cross-section and an outlet cross-section for conveying free-flowing media, in particular plastic melts and rubber blends. Said pump comprises two screw shafts (20, 21), having a distance (alpha) between their axes, which are located in a pump housing (3) comprising two partially overlapping housing bores (4, 5) that run through said housing (3) in a longitudinal direction and which can be rotationally driven in an equidirectional manner. A plurality of single-flight screw element groups (1, 2), which closely intermesh, are arranged on said shafts in a rotationally-fixed manner. The invention also relates to a multi-screw extruder comprising a screw pump of this type.

Ceshanieki, Gregore
Application Number:
Publication Date:
July 29, 2004
Filing Date:
February 22, 2002
Export Citation:
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Beerstorf Gesellschaft Mitt Beschlenktel Haftung
International Classes:
B29C48/58; F04C2/08; F04C2/16; B29K21/00; B29K101/12; F04C13/00; (IPC1-7): B29C47/40
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo