Valve needle for fluid valve has discharge holes with hole diameter of micrometer-range and which are distributed in large quantity over partial covering area of needle sleeve such that the needle sleeve itself forms filter

摘要

Valve needle (17) has radial discharge holes (30) with hole diameter of micrometer-range which are distributed in large quantity over a partial covering area of needle sleeve such that needle sleeve itself forms a filter (31) from which the fluid is discharged. Hollow cylindrical needle sleeve (18) is opened at one end for carrying fluid and closed at other end by a needle head (19). An independent claim is also included for a manufacturing method of a valve needle for a fluid valve.