Claims
- 1. An oil control valve for controlling supply of hydraulic oil to an oil hydraulic actuator via a plurality of pipelines, comprising:
a cylindrical housing; a plurality of ports formed in a periphery of said housing so as to correspond to the plurality of pipelines; and grooves provided in the periphery of said housing so as to provide communication between an associated port and an associated pipeline.
- 2. The oil control valve according to claim 1, wherein the groove is formed to extend from a bottom of the port to cover an entirety of the periphery of said housing.
- 3. The oil control valve according to claim 2, wherein the groove has a width smaller than that of the port.
- 4. The oil control valve according to claim 2, wherein the groove has a width identical to that of the port.
- 5. The oil control valve according to claim 2, wherein the groove has a width larger than that of the port.
- 6. The oil control valve according to claim 1, wherein the groove extends from an edge of the port in an axial direction of said housing.
- 7. The oil control valve according to claim 6, wherein the groove includes a taper inclined from the periphery of said housing toward a surface of the port.
CROSS-REFERENCE TO THE RELATED APPLICATION
[0001] This application is a continuation of International Application No. PCT/JP99/05020, whose international filing date is Sep. 14, 1999, the disclosures of which Application are incorporated by reference herein.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/JP99/05020 |
Sep 1999 |
US |
Child |
09849295 |
May 2001 |
US |