| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a squeeze film damper bearing which is used in a rotary part of a high-speed rotation machine such as a turbine or in that rotary part of an ordinary machine requiring vibratory prevention, in which cabitation is suppressed through adjustment of the pressure distribution, and precludes occurrence of accident with the rotation machine. SOLUTION: A damper effect is generated by forming an oil film pressure in a ring-shaped space bounded by an inner ring vibrating in the radial direction and an outer ring set stationarily, wherein the ring-shaped space 9 is provided with a void to allow running-off of the oil film pressure in a part nearer the end of space 9 about the axial direction, and the oil film pressure to exhibit a peak toward the end of space 9 where oil film pressure is generated is released from the space 9 so as to relieve the peak pressure to a great extent, and thereby generation of cavitations is precluded over a wide range, and the reliability of the rotation machine is heightened greatly.</p> |
