Title:
【発明の名称】双円筒インペラ型ポンプ
Document Type and Number:
Japanese Patent JP2000506587
Kind Code:
A
Abstract:
PCT No. PCT/KR97/00218 Sec. 371 Date Jul. 9, 1998 Sec. 102(e) Date Jul. 9, 1998 PCT Filed Nov. 7, 1997 PCT Pub. No. WO98/21478 PCT Pub. Date May 22, 1998A twin-cylinder impeller pump is disclosed. In the above pump, the twin-cylinder runner (3, 4) is provided with an elastic sealing means for removing any gap from the junction between the runner and the throat of a pump casing (10) with the runner being positioned at its upper or lower dead point. In a transmission gear mechanism of the above pump, the drive shaft does not directly engage with the driven shaft, but indirectly engages with the driven shaft through two idle gears (14, 17). In each of the idle gears (14, 17), both a circular concentric gear (14, 17) and an elliptical eccentric gear (15, 18) are commonly mounted to a shaft, thus forming a twin gear. The two elliptical eccentric gears (15, 18) engage with each other, while the two circular concentric gears (14, 17) engage with the drive and driven gears (13, 16) respectively, thus effectively reducing operational noises and vibrations during a pumping operation.
Inventors:
Ra, Phil Chan
Application Number:
JP52240898A
Publication Date:
May 30, 2000
Filing Date:
November 07, 1997
Export Citation:
Assignee:
Ra, Phil Chan
International Classes:
F04C2/06; F04C2/077; F04C18/02; F04C2/32; F04C11/00; F04C18/32; (IPC1-7): F04C18/02; F04C18/32
Attorney, Agent or Firm:
Takashi Ishida (4 others)