| 摘要 |
1,162,009. Bearings; vibration dampers. UNION CARBIDE CORP. 24 Oct., 1966 [23 Oct., 1965], No. 47559/66. Headings F2A and F2S. [Also in Division F1] In a gas bearing assembly, rotor means comprises a torque transferring mass portion and a dynamic stabilizing mass portion which are joined by elastic means, the dynamic stabilizing mass portion being separated from a rigid support member by a narrow annular space which is supplied with pressurized gas. In an embodiment, a torque-transferring mass portion 12, Fig. 1, has an energy-receiving section 25 and an energy-transmitting section 26 which operates in conjunction with field coils 24 and 27 respectively. Dynamic-stabilizing mass portions 13a and 13b are each connected to the portion 12 by an elastic member 14. The members 14 are each provided with a damping- sleeve 19a or 19b formed of a material which dissipates energy by intense friction within, as for example elastomers or metals including lead. Alternatively, the members 14 may have metal wire wrapped therearound and metal bonded thereto; or the damping material may be impregnated into the members 14. Pressurized fluid is supplied to the portion 13a through a passage 18a in a rigid support member 15 to produce a gas-film 16a in an annular space 17a and is supplied to the portion 13b through a passage 18b in the support member 15 to produce a gas-film 16b in an annular space 17b. Thus the rotor assembly is radially supported by fluid pressure. The rotor assembly is also axially supported by fluid pressure which is supplied from the passage 18a and is passed through passages 22 to spaces 21 formed between thrust-sections 20 and the support member 15. In another embodiment, a turbinedriven compressor unit has a torque-transferring mass portion 112, dynamic-stabilizing mass portions 113a, 113b and elastic support means 114a, 114b. The portion 112 has a recessed portion 140 which receives a portion 141 of a easing 115, the latter having tooth-type projections 139 which form a labyrinth seal with the rotating portion 140. The portions 113a and 113b are each provided with an annular chamber 145 containing metal particles 144 which can extract energy by non-elastic or partiallyelastic collisions. In use, pressurized-air is supplied through a passage 118a to bearing- spaces 117a, 121 and through a passage 118b to a bearing-space 117b.
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