Rotary device

摘要

A rotary device includes a fixed body including a shaft; a rotary body including a sleeve being configured to surround the shaft through lubricant; and first and second taper seals provided in a space between the fixed body and the rotary body in which gas-liquid interfaces of the lubricant exist, respectively, when the rotary device is operated, the first and taper seals being configured such that a lower limit of a filling ratio of the second taper seal corresponds to a predetermined range of the filling ratio of the first taper seal including its lower limit of the filling ratio, and an upper limit of the filling ratio of the second taper seal corresponds to a predetermined filling ratio of the first taper seal that is larger than an upper limit of the predetermined range and lower than an upper limit of the first taper seal.

主权项

1. A rotary device comprising:
a fixed body that includes a shaft; a rotary body that includes a sleeve being configured to surround a periphery of the shaft through lubricant; and a first taper seal and a second taper seal provided in a space between the fixed body and the rotary body in which gas-liquid interfaces of the lubricant exist, respectively, when the rotary device is operated,
the first taper seal and the second taper seal being configured such that
a lower limit of a filling ratio, which is a ratio of the volume of the lubricant filled in a taper seal with respect to the volume of the respective taper seal, of the second taper seal corresponds to a predetermined range of the filling ratio of the first taper seal including a lower limit of the filling ratio of the first taper seal, andan upper limit of the filling ratio of the second taper seal corresponds to a predetermined filling ratio of the first taper seal that is larger than an upper limit of the predetermined range and lower than an upper limit of the first taper seal.