| 摘要 |
PURPOSE:To enable the rotary anode to be efficiently cooled even when the rotary shaft is rotated at high speed by forming a fluid path in an inner cylinder formed by material which has a small thermal conductivity and has a specific gravity closer to that of an outer cylinder than to that of a fluid. CONSTITUTION:A rotary shaft 22 consists of an outer cylinder 24 having a cylindrical hollow area 23 and an inner cylinder 25 attached and fixed to the hollow area 23. A rotary anode 21 is connected to the outer cylinder 24. The cylinder 24 is made of a metal such as a stainless steel and the cylinder 25 is made of polypropylene. the cylinder 25 includes a fluid path 28 which consists of a forward path 26 and a backward path 27. A fluid supplied into the forward path 26 travels through it in the direction indicated by an arrow and then passes between a rotary anode support 29 and a guide plate 30 which are attached to the cylinder 24 prior to entering the space between the guide plate 30 and the anode 21 to cool it from its back. As the result, a moist fluid is discharged outside the device after traveling through the backward path 27 in the direction indicated by an arrow. |
