Fluid valve

A fluid valve comprising:

• a housing having a spool hole, a feeding port and a discharge port, the spool hole being in communication with a drain port, the feeding port being configured to receive a hydraulic fluid fed thereto, and the discharge port being configured to discharge the hydraulic fluid;
• a spool movably provided in the spool hole;
• and
• an elastic member provided in the spool hole and lying between the drain port and the spool, the elastic member being configured to force the spool away from the drain port,
• wherein the spool has:
• a connection recess defined in an outer surface of the spool, the connection recess being configured to establish communication between the feeding port and the discharge port;
• another connection recess defined in the outer surface of the spool, the other connection recess being positioned on an opposite side to the drain port with respect to the connection recess, the other connection recess being configured to establish communication between the feeding port and the discharge port;
• a fluid inlet chamber extending along a central axis of the spool, the fluid inlet chamber being in communication with the connection recess;
• and
• a discharge recess defined in the outer surface of the spool, the discharge recess being positioned closer to the drain port than is the connection recess, the discharge recess being in communication with the fluid inlet chamber,
• wherein a filter extends between the discharge recess and an end of the spool facing the drain port to stop foreign matter from entering into the drain port,
• wherein the filter has a minute gap formed between the spool hole and the outer surface of the spool, and
• wherein a radial width of the minute gap is sized to inhibit passage of foreign matter of a desired size.