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Patent Searching and Data


Title:
TRIPLE GEAR PUMP
Document Type and Number:
Japanese Patent JP2012107526
Kind Code:
A
Abstract:

To provide a triple gear pump in which a volumetric efficiency is increased by improving the sealability between the tooth crests of a gear disposed at the center and the internal wall surface of a casing.

The gear 2 at the center of this triple external gear pump includes a floating tooth 2a which is arrested in the circumferential direction of the gear 2 and can be moved radially outward by a centrifugal force. Accordingly, the gap between the floating tooth 2a of the center gear 2 and the internal wall surface of the casing is reduced, and thereby the internal leakage of the pump can be suppressed.


Inventors:
Masuda, Akitoshi
Application Number:
JP2010000255043
Publication Date:
June 07, 2012
Filing Date:
November 15, 2010
Export Citation:
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Assignee:
IHI CORP
International Classes:
F04C11/00; F04C2/18
Attorney, Agent or Firm:
志賀 正武