| 摘要 |
A hydraulically operated motor may be located in an atmosphere having substantially high and varying pressure. The motor (130) may be provided wit h conduits (150, 158) that are in fluid communication with cavities (152) adjacent to the motor bearings (138, 140), so that fluid in the conduits may lubricate the bearings. Lubricating fluid may be introduced to the conduits across an air gap (168, 170) that is in the atmosphere having substantially high and varying pressure, and the fluid may thereby pass though and lubrica te the bearings.
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