| 摘要 |
A seal ring that can smoothly discharge a foreign object contained in oil on the pressurized side to an annular gap on the non-pressurized side without forming abutment faces, facing each other at cut sections, into a complex shape. Projections (3a, 3b) and recesses (4a, 4b) are arranged side by side in the axial direction at the abutment faces (1a, 1b) facing each other at the cut sections. A radial gap (5a) is formed between the projection (3a) of the abutment face (1a), which projection (3a) is placed on that side of an annular groove (13) of a shaft material (12) which is in intimate contact with a side wall surface (13a) on the non-pressurized side (14b), and the recess (4b) of the mating abutment face (1b). A path for interconnecting the pressurized side (14a) and the non-pressurized side (14b) of a blocked annular gap (14) is formed by both the radial gap (5a) and a circumferential gap (2) located between the abutment faces (1a, 1b). As a result, a foreign object contained in oil on the pressurized side (14a) can be smoothly discharged to the non-pressurized side (14b) without making the shape of the abutment faces (1a, 1b) complex. ® KIPO & WIPO 2009 |
