Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WATER SEALED PUMP
Document Type and Number:
Japanese Patent JPS63147984
Kind Code:
A
Abstract:

PURPOSE: To increase self-suction by providing a centrifugal impeller which sends in an operating water fed from a feed port toward the outer peripheral part of an Elmo type impeller accompanying rotation in a middle position between said impeller and a port plate.

CONSTITUTION: The inner peripheral part on the end face of the cylindrical boss 21a of an Elmo type impeller 21 and the inner peripheral part of a port plate 3 are machined to provide spaces 24, 25, where a centrifugal impeller 22 which is fixed to a rotary shaft 23 is provided. An operating water is sucked in from a feed port 7 and sent under pressure to the outer peripheral part of the impeller 21 by the action of the impeller 22 and, by the cooperation of the centrifugal action accompanying the rotation of the impeller 21 and the pressure difference between the feed port 7 and the inside of a separator, sufficient self-suction can be carried out.


Inventors:
Watanabe, Etsuo
Application Number:
JP1986000294324
Publication Date:
June 20, 1988
Filing Date:
December 10, 1986
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
F04C18/356; F04C19/00; (IPC1-7): F04C19/00