Patent ID: 6669116
Filing Date: 2003-12-30
Classification: F02M

Abstract:
An orifice plate which is mounted at a tip of an injector to cover a fuel passage hole formed at the tip, the orifice plate including:a plate body constructed in layers; and an orifice for allowing fuel having gassed through the fuel passage hole to be injected; wherein the orifice is constructed of a plurality of holes each formed in each layer of the plate body so that each hole is perpendicular to a surface of the plate body, the holes being disposed in communication with each other and with displacements from each other along a line obliquely intersecting the plate body, and wherein the plate body includes a plurality of disks which are superposed on top of each other and a joint part which joins the adjacent disks in an unfolded state and is folded to construct the layered plate body.