Title:
【発明の名称】多相歯車ポンプ動作におけるポンプ方法とポンプ
Document Type and Number:
Japanese Patent JPH09500701
Kind Code:
A
Abstract:
PCT No. PCT/DE94/00477 Sec. 371 Date Oct. 6, 1995 Sec. 102(e) Date Oct. 6, 1995 PCT Filed Apr. 28, 1994 PCT Pub. No. WO94/27049 PCT Pub. Date Nov. 24, 1994The invention relates to a pumping process for operating a multi-phase screw pump with at least one feed screw surrounded by a housing having at least one inlet on one side and at least one outlet at its top, in which the intake medium is conveyed parallel to the screw shaft in a continuous low-pulsed stream and continuously discharged at the outlet. This invention also relates to a multi-phase screw pump. In order to prevent the drawbacks usually occurring in dry running phases, the invention proposes that a partial liquid volume flow (liquid circulation) be separated on the pressure side and returned in metered quantities into the intake regions and thus kept in circulation.
Inventors:
ROHLFING GERHARD (DE)
Application Number:
JP52479994A
Publication Date:
January 21, 1997
Filing Date:
April 28, 1994
Export Citation:
Assignee:
BORNEMANN J H GMBH & CO (DE)
International Classes:
F04C18/16; F04C2/16; F04C13/00; F04C29/02; (IPC1-7): F04C18/16
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)