Title:
圧縮可能な媒体用の容積式機械に搭載するツイン・スクリューロータ
Document Type and Number:
Japanese Patent JP3955731
Kind Code:
B2
Abstract:
The twin-screw rotor structure, for use in displacement machines for compressible materials and media, has a pitch which is not constant, and is defined by a variable related to the working angle round it. The pitch in the first section increases ( DELTA W1) from the entry end to a max. value after one turn angle. The following section has a reduced pitch to a min. value at a point of one turn angle before the outlet. The last, and third section, has a constant pitch ( DELTA W3). The spirals (7) have a constant thickness (h).
Inventors:
Becker, Ulric
Application Number:
JP2000578545A
Publication Date:
August 08, 2007
Filing Date:
October 01, 1999
Export Citation:
Assignee:
Atelier Busch SA
International Classes:
F04C18/16; F01C1/08
Domestic Patent References:
| JP2000501810A |
Attorney, Agent or Firm:
Toshi Inoguchi