초록 ▼

A mechanical split seal includes a tapered carbon split seal ring and a silicon carbide split mating ring. The tapered seal ring is compressed by a tapered seal ring shell which has a split “O”ring disposed in the taper to provide even force and improved sealing. The shell is biased toward the seal

A mechanical split seal includes a tapered carbon split seal ring and a silicon carbide split mating ring. The tapered seal ring is compressed by a tapered seal ring shell which has a split “O”ring disposed in the taper to provide even force and improved sealing. The shell is biased toward the seal ring by multiple springs retained by a non-split cup. The mating ring is supported by a gland which includes a split gland packing assembly for compressing packing material onto the shaft. Used as a pump seal, the seal can be cooled by circulation created by the fluid supplied from either the pump input or output.

대표청구항 ▼

A split seal for providing a seal between a housing and a shaft comprising: a stationary split mating ring attached to the housing; a annular rotary split seal ring having a sealing face abutting said mating ring and an outer tapered surface which tapers in decreasing diameter away from said sealing

A split seal for providing a seal between a housing and a shaft comprising: a stationary split mating ring attached to the housing; a annular rotary split seal ring having a sealing face abutting said mating ring and an outer tapered surface which tapers in decreasing diameter away from said sealing face; an annular seal ring shell having an inner tapered portion adapted for slidingly fitting over said outer tapered portion of said seal ring, said seal ring shell being fixed to rotate with the shaft; means for axially urging said shell toward said rotary split seal ring and said stationary split mating ring; and means for uniformly transferring the urging force from said shell to said rotary split seal ring by providing a constant point of force between shell and ring and for preventing leakage along said rotary split seal ring, said means including an annular groove formed in said inner tapered portion, and an “O”ring fitted in said annular groove.