| 摘要 |
In order to provide a mechanical seal device that is capable of favorably sealing a high-temperature, high-pressure fluid and is suitable in terms of reducing the size, the present invention is characterized by having: a rotation-side unit (19), which is equipped with a cylindrical sleeve (70) through which a rotary shaft (80) is inserted, a sleeve collar (61) that is provided on the device-exterior part of the sleeve and protrudes radially outward from the sleeve, and a rotating ring (20) provided on the device-interior part of the sleeve, and which is provided on the rotary shaft so as to rotate integrally with the rotary shaft; and a stationary-side unit (11), which is equipped with a stationary ring (12) that is provided so as to oppose the rotating ring from the device-exterior side, and that forms a sliding surface by sliding with respect to the rotating ring, and a seal case (50) that supports the stationary ring. In addition, a first through-hole (62) that runs from the device-exterior end face of the sleeve collar to the device-interior end face is formed in the sleeve collar or between the sleeve and the sleeve collar, and the direction in which this first through-hole runs is slanted with respect to the axial direction of the rotary shaft. |
