[Claim 1]
An injection hole plate, which is plate-like and injects fuel supplied from one side to the other side,
the injection hole plate comprising ;
an injection hole which penetrates from the one side to the other side, and injects the fuel, and
a hollow part which is depressed from the one side to the other side, and leads the fuel from an upper stream to a lower stream of the injection hole,
wherein the hollow part includes:
a branch part which receives the fuel,
a cylinder-like cylinder part which surrounds the injection hole and circulates the fuel,
an arc-like swirl part which is arranged to extend along an outer periphery of the cylinder part,
a belt-like first lead in part which is connected to the branch part and the cylinder part, and leads the fuel received by the branch part to the cylinder part toward a first lead in direction, and
a belt-like second lead in part which is arranged in connection with the first lead in part, is connected to the first lead in part and the branch part, and leads the fuel received by the branch part to the swirl part toward a second lead in direction which is parallel to the first lead in direction;
characterized in that the swirl part causes a fuel flowing direction along which the fuel led in by the second lead in part flows into the cylinder part to encounter with a fuel flowing direction along which the fuel led by the first lead in part flows into the cylinder part.
[Claim 2]
The injection hole plate as set forth in Claim 1,
characterized in that the swirl part includes a termination face of a lower stream side, the face following along a tangential direction of an outer periphery of the cylinder part, and causes the fuel led by the second led in part to flow into the cylinder part through the termination face.
[Claim 3]
The injection hole plate as set forth in Claim 2 or 3,

the injection hole plate further comprising a second injection hole which penetrates from one side to the other side and injects the fuel,
wherein the hollow part includes
a cylinder-like second cylinder part which surrounds the second injection hole and circulates the fuel,
an arc-like second swirl part which is arranged to extend along an outer periphery of the second cylinder part,
a belt-like third lead in part which is connected to the branch part and the second cylinder part, and leads the fuel received by branch part to the second cylinder part toward a third lead in direction, and
a belt-like fourth lead in part which is arranged in connection with the third lead in part, is connected to the third lead in part and the branch part, and leads the fuel received by the branch part to the second swirl part toward a fourth lead in direction which is parallel to the third lead in direction,
characterized in that the second swirl part causes a fuel flowing direction along which the fuel led by the fourth lead in part flows into the second cylinder part to encounter a fuel flowing direction along which the fuel led by the third lead in part flows into the second cylinder part.
[Claim 4]
A fuel injection valve, which injects fuel,
the fuel injection valve comprising a plate-like injection part which injects fuel supplied from one side to the other side,
wherein the injection part includes
an injection hole which penetrates from the one side to the other side and injects the fuel, and
a hollow part which leads the fuel from an upper stream to a lower stream of the injection hole, and
further wherein the hollow part includes ;
a branch part which receives the fuel,
a cylinder-like cylinder part which surrounds the injection hole and circulates the fuel,
an arc-like swirl part which is arranged to extend along an outer periphery of the cylinder part,
a belt-like first lead in part which is connected to the branch part and the cylinder part, and leads the fuel received by the branch part to the cylinder part toward a first

lead in direction, and
a belt-like second lead in part which is arranged in connection with the first lead in part, is connected to the first lead in part and the branch part, and leads the fuel received by the branch part to the swirl part toward a second lead in direction which is parallel to the first lead in direction,
characterized in that the swirl part causes a fuel flowing direction along which the fuel led by the second lead in part flows into the cylinder part to encounter a fuel flowing direction along which the fuel led by the first lead in part flows into the cylinder part.