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Patent Searching and Data


Title:
TANDEM PUMP AND TANDEM PUMP FOR BRAKE DEVICES
Document Type and Number:
Japanese Patent JP2009215932
Kind Code:
A
Abstract:

To provide a tandem pump in which friction and leak are suppressed.

A tandem pump includes a first gear section and a second gear section which are rotatingly driven by driving of a rotating shaft, a pump housing section provided in a housing, a first pump chamber formed in the pump housing section for housing the first gear section, a second pump chamber formed in the pump housing section for housing the second gear section, and a partition section provided in the pump housing section for dividing liquid-tightly the first pump chamber and the second pump chamber. The partition section is positioned at least relative to the axial direction of the rotating shaft by the housing.


Inventors:
KAJIYAMA KEIGO
KOIZUMI TOSHIHIRO
SAIDA NORIHIRO
Application Number:
JP2008058970A
Publication Date:
September 24, 2009
Filing Date:
March 10, 2008
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B60T17/00; F04C2/10; F04C11/00; F04C15/00
Domestic Patent References:
JP2000009058A2000-01-11
JP2000161244A2000-06-13
JP2006125239A2006-05-18
Attorney, Agent or Firm:
Masamichi Ayata