초록 ▼

A sprinkler includes a sprinkler body having an inlet end and an outlet end, the outlet end having a nozzle with a discharge orifice; the nozzle surrounded by an outer wall forming an annular chamber radially spaced from the discharge orifice. A rotor plate is supported by the sprinkler body for rot

A sprinkler includes a sprinkler body having an inlet end and an outlet end, the outlet end having a nozzle with a discharge orifice; the nozzle surrounded by an outer wall forming an annular chamber radially spaced from the discharge orifice. A rotor plate is supported by the sprinkler body for rotation about an axis, the rotor plate having a tubular water distribution passage with an inlet and an outlet, the passage configured to cause the rotor plate to rotate when a stream from the nozzle passes therethrough. The inlet of the passage is axially spaced from the discharge orifice by a distance sufficient to aspirate air into the inlet end of the passage, thereby pulling water leaked into the chamber back into the passage.

대표청구항 ▼

[ What is claimed is:] [1.] A sprinkler comprising:a sprinkler body having an inlet end and an outlet end, the outlet end having a nozzle with a discharge orifice, said nozzle surrounded by an outer structure extending axially beyond said discharge orifice and creating an annular cavity radially bet

[ What is claimed is:] [1.] A sprinkler comprising:a sprinkler body having an inlet end and an outlet end, the outlet end having a nozzle with a discharge orifice, said nozzle surrounded by an outer structure extending axially beyond said discharge orifice and creating an annular cavity radially between said nozzle and said outer structure;a rotor plate supported by said sprinkler body for rotation about an axis, said rotor plate having a circumferentially closed, open ended tubular water distribution passage with an inlet and an outlet, said passage configured to cause said rotor plate to rotate when a stream from said nozzle passes therethrough; and said inlet of said water distribution passage extending into said cavity but axially spaced from said discharge orifice to thereby enable aspiration of air and water spray in said cavity into said water distribution passage.