Patent ID: 7472838

Claim:
A fluid injection valve comprising: a valve body that is provided with an opening portion at one axial end thereof to discharge a fluid out of the opening portion; and an injection port plate having a plurality of injection ports that penetrate therethrough, the injection port plate being fixed at the one axial end of the valve body; wherein a spacer wall portion is disposed between a portion of the valve body surrounding the opening portion and the injection hole plate, the spacer wall portion having an inner circumferential surface radially outward of the opening portion and disposed to surround the plurality of injection ports, so that a fluid chamber is defined by the inner circumferential surface, an axial surface of the valve body facing the injection port plate, and an axial surface of the injection port plate, the fluid chamber having a diameter larger than the opening portion, said inner circumferential surface of said spacer wall portion being disposed at a predetermined distance from said injection ports, wherein the inner circumferential surface of the spacer plate juts radially inward into intervals between at least some of the injection ports.