| 摘要 |
A stream redirecting device for a sprinkler includes a shell-shaped body having a generally semi-circular shape in plan, with opposite inlet and outlet side edges. The body extends outwardly and upwardly from a base at a lower end and then upwardly and inwardly to a distal, arcuate edge at an upper end. An inside surface of the shell-shaped body is formed with a plurality of grooves between the inlet side edge and the outlet side edge, extending in a generally radial direction with entry ends adjacent the base and exit ends at the distal, arcuate edge. The grooves are formed with circumferential exit angles that vary substantially uniformly in opposite directions from a center one of the plurality of grooves to first and last of the plurality of grooves at the opposite inlet and outlet side edges, respectively. |
| 主权项 |
1. A stream deflector for a sprinkler comprising:
a generally concave, shell-shaped body having a generally semi-circular shape in plan, with opposite inlet and outlet side edges, said body extending outwardly and upwardly from a base at a lower end and then upwardly and inwardly to a distal, arcuate edge at an upper end, with a maximum radius between said base and said distal, arcuate edge; an inside surface of said shell-shaped body formed with a plurality of grooves between said inlet side edge and said outlet side edge, extending in a generally radial direction with entry ends adjacent said base and exit ends at said distal, arcuate edge; and wherein said grooves are formed with circumferential exit angles that vary substantially uniformly in opposite directions from a center one of said plurality of grooves to first and last of said plurality of grooves at said opposite inlet and outlet side edges, respectively, each of said circumferential exit angles representing an angle at which a stream is redirected as the stream exits a respective groove of the plurality of grooves. |
