| 摘要 |
PURPOSE:To have certain cooling of lubricant with simple constitution by furnishing a rotary shaft with a disc solidly as in a single piece, installing a lubricant circulating device at a bearing box, arranging a cooler in the neighborhood of this bearing box, and sending the lubricant to the cooler by means of rotation of the disc. CONSTITUTION:Spindle (rotary shaft) 1 of a fluid machine is inserted horizontally in a bearing box 2 filled with lubricant 7, and supported by a bearing 3 rotatably. Casing 4 is arranged adjacent to this bearing box 2, and a draft tube 5 is connected with this casing 4 A disc 6 is installed solidly on the spindle 1 in the bearing box 2, and a lubricant circulating device 8 such as viscous pump is installed within another bearing box 7 mating with the disc 6. A cooler 9 is fixed to the side of the above-mentioned bearing box 2, and the heat receiving part 10a of the heat pipe 10 in which the radiating part 10b is inserted in the flux part of the draft tube 5, is inserted in this cooler 9, to perform cooling of the lubricant.
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