ROCK BIT NOZZLE AND RETAINER ASSEMBLY

摘要

A nozzle and retainer assembly is provided for use in a rotary cone earth boring bit that allows for a larger internal passage in the nozzle. In one aspect, the assembly has a nozzle seated on a shoulder in a receptacle with a stepped portion extending radially outward with a first nozzle shoulder spaced from and facing toward the shoulder in the receptacle to partially define a seal gland. The stepped portion has a second nozzle shoulder facing toward the open end of the receptacle and the retainer engages the inside surface of the receptacle and the second nozzle shoulder to retain the nozzle in the receptacle.