Seal

摘要

A mechanical seal for providing a fluid-tight seal between relatively rotatable elements includes a stationary part for securing to a housing, which has a stationary seal face, a rotary part for securing to a shaft, which includes a rotary seal face, a spring urging the rotary seal face into engagement with the stationary seal face and a toroidal sealing member between the rotary component and the shaft. The toroidal sealing member is accommodated within a recess of the rotary part, and the recess is defined by two members of which the first rotary part member includes the seal face and a second rotary part member is positioned between the first rotary part member and the spring.

主权项

1. A mechanical seal for providing a fluid-tight seal between relatively rotatable elements, comprising:
a stationary part for securing to a housing comprises a stationary seal face; a rotary part for securing to a shaft comprises a rotary seal face; a spring urging the rotary seal face into engagement with the stationary seal face; and a toroidal sealing member between a rotary component and the shaft, wherein the toroidal sealing member is accommodated within a recess of the rotary part, and wherein the recess is defined by two members of which the first rotary part member comprises the seal face and a second rotary member part is positioned between the first rotary part member and the spring, the first rotary part member having a stepped portion and the second rotary part member having a radially outer portion abutting the stepped portion of the first rotary part member for permitting the spring to be in direct driving engagement with the first rotary part member.