Title:
【発明の名称】ドライ圧縮スクリューポンプ
Document Type and Number:
Japanese Patent JP2002523684
Kind Code:
A
Abstract:
A dry-compressing screw pump in the form of a two-shaft positive displacement pump. A first and a second rotor spindle are disposed parallel to each other. The rotor spindles are hollow. A cooling medium is fed at a first front face of the rotor spindles and evacuated at a second front face of the rotor spindles. A cooling medium feeding and evacuation means is connected to an external cooling medium circuit. The inner diameter of the rotor spindles monotonously increases from the first front face toward the second front face so that the cooling medium is conveyed from the first front face to the second front face substantially under the influence of centrifugal force acting on the cooling medium due to the rotation of the rotor spindle.
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Inventors:
Stefence Ralph
Application Number:
JP2000567851A
Publication Date:
July 30, 2002
Filing Date:
June 29, 1999
Export Citation:
Assignee:
Stefence Ralph
International Classes:
F04C18/08; F04C18/16; F04C25/02; F04C27/00; F04C29/00; F04C29/02; F04C29/04; (IPC1-7): F04C18/16; F04C25/02; F04C29/00; F04C29/04
Attorney, Agent or Firm:
Nobuaki Arai