Patent Number: 
Section: claims

1. A flow limiter comprising:a head including a side surface having at least one first hole, the side surface being symmetric about a first axis; anda fin extending from a bottom of the head, the fin including at least one second hole, the at least one second hole having an axis substantially perpendicular to the first axis,wherein the side surface has a cross-section which decreases from a top of the head to the bottom of the head. 2. The flow limiter of claim 1, wherein the side surface has an arcuate profile and the at least one first hole is a plurality of first holes formed through the side surface. 3. The flow limiter of claim 2, wherein the at least one second hole is a single second hole. 4. The flow limiter of claim 1, wherein the fin includes a bottom portion having an inclined surface. 5. The flow limiter of claim 4, wherein the inclined surface is inclined, with respect to a length of the fin, about 45 degrees. 6. The flow limiter of claim 1, wherein the side surface has an arcuate shape. 7. The flow limiter of claim 6, wherein the arcuate shape is an elliptical shape. 8. The flow limiter of claim 6, wherein the arcuate shape forms a hemisphere. 9. The flow limiter of claim 1, wherein the at least one first hole is a plurality of triangular holes provided at an equal spacing around a circumference of the head. 10. A flow limiter comprising:a head including a side surface having at least one first hole, the side surface being symmetric about a first axis; anda fin extending from a bottom of the head, the fin including at least one second hole, the at least one second hole having an axis substantially perpendicular to the first axis,wherein a bottom of the fin is configured to contact a surface of a fuel support casting. 11. A system including:a fuel support casting having at least one channel; anda flow limiter in the at least one channel, the flow limiter includinga head including a side surface having at least one first hole, the side surface being symmetric about a first axis which is parallel to an axis of the at least one channel; anda fin extending from a bottom of the head, the fin including at least one second hole, the second hole having an axis substantially perpendicular to the first axis. 12. The system of claim 11, wherein a bottom of the channel of the fuel support casting is defined by a surface of the fuel support casting and the fin contacts the surface of the fuel support casting. 13. The system of claim 12, wherein the surface of the fuel support casting is inclined with respect to an axis of the at least one channel and the fin includes a bottom surface parallel to the surface of the fuel support casting. 14. The system of claim 12, wherein the fin extends in a direction parallel to the axis of the at least one channel. 15. The system of claim 12, wherein the fm supports the flow limiter. 16. The system of claim 11, wherein the side surface of the flow limiter has an arcuate shape. 17. The system of claim 16, wherein the arcuate shape is an elliptical shape. 18. The system of claim 16, wherein the arcuate shape forms a hemisphere. 19. The system of claim 11, wherein the at least one first hole is a plurality of triangular holes provided at an equal spacing around a circumference of the head.