Title:
OIL PRESSURE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/032813
Kind Code:
A1
Abstract:
In order to improve the performance of mounting to an engine, an oil pressure control device is provided with a pump which is driven by the rotation of an engine and discharges oil, a first flow path by which the pump and a first predetermined part communicate with each other, a second flow path which diverges from the first flow path and through which the oil is supplied to a second predetermined part, and a flow path area adjustment unit which adjusts the flow path area of the second flow path according to the oil pressure of the second flow path, and the flow path area adjustment unit is formed such that a first pressure receiving surface and a second pressure receiving surface having a smaller area than the first pressure receiving surface face each other across the second flow path, and is configured to comprise a spool which is movable according to the oil pressure of the second flow path, and a biasing member which biases the spool from the first pressure receiving surface toward the second pressure receiving surface.
Inventors:
MIYACHI EIJI (JP)
Application Number:
PCT/JP2011/061387
Publication Date:
March 15, 2012
Filing Date:
May 18, 2011
Export Citation:
Assignee:
AISIN SEIKI (JP)
MIYACHI EIJI (JP)
MIYACHI EIJI (JP)
International Classes:
F01M1/16
Foreign References:
| JP2009299573A | 2009-12-24 | |||
| JPH119910A | 1999-01-19 | |||
| JPH0742401U | 1995-08-04 | |||
| JPH06147353A | 1994-05-27 | |||
| JPS59180061U | 1984-12-01 | |||
| JPS55152973A | 1980-11-28 | |||
| JPS5378462U | 1978-06-29 | |||
| JP2009299573A | 2009-12-24 |
Other References:
See also references of EP 2615268A4
Attorney, Agent or Firm:
KITAMURA SHUICHIRO (JP)
Shuichiro Kitamura (JP)
Shuichiro Kitamura (JP)
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Claims: