Patent ID: 8495976

Claim:
An oil control valve comprising: a housing that is connected to an oil passage via which an oil is fed to and drained from a hydraulic device; an elongated spool that changes a state of oil feeding-drainage for the hydraulic device by moving in the housing; and a drain passage which is formed in the spool such that the drain passage extends in an axial direction of the spool and an outlet of the drain passage is provided at a radial side face of an axial end portion of the spool, and via which the oil that has entered the housing from the hydraulic device is drained, wherein the spool includes an elongated spool body, and an attachment that is separate from the spool body and is fixed at an axial end portion of the spool body; wherein a communication portion is provided in the attachment, and the communication portion serves as the outlet of the drain passage, which is provided at the radial side face of the axial end portion of the spool, when the attachment is fixed at the spool body.