Title:
GEAR PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/175242
Kind Code:
A1
Abstract:
In the present invention, polishing lines 71f are connected to an outer circumferential high-pressure region, but are not connected to each area that is a low-pressure region. In this configuration, the polishing lines 71f are connected to the outer circumferential high-pressure region where there is high discharge pressure, so high-pressure brake fluid is introduced within the polishing lines 71f. Therefore, a pushback effect is obtained, wherein gear pumps 19 and 39 are pushed back on the basis of the high-pressure brake fluid pressure. Furthermore, the polishing lines 71f are connected to the outer circumferential high-pressure region but are not connected to each area that is a low-pressure region, so high-pressure can be maintained within the polishing lines 71f, and a reduction in the pushback effect can be prevented. Accordingly, a decrease in the loss torque reduction effect can be prevented, and the loss torque can be further reduced.
Inventors:
HASHIBA TAKASHI (JP)
HAKAMADA NAOKI (JP)
NAGANUMA TAKAHIRO (JP)
KAWABATA TOMOAKI (JP)
HAKAMADA NAOKI (JP)
NAGANUMA TAKAHIRO (JP)
KAWABATA TOMOAKI (JP)
Application Number:
PCT/JP2016/063197
Publication Date:
November 03, 2016
Filing Date:
April 27, 2016
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
F04C2/10; F04C15/00
Foreign References:
| JPH07293452A | 1995-11-07 | |||
| JP2014084849A | 2014-05-12 | |||
| JPH0914152A | 1997-01-14 |
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