| 摘要 |
PURPOSE:To uniformize the internal temperature of molding body by providing ventilating cuts inclined to the axial direction on the internal peripheral surface of the molding body of a rotary section of a physical quantity detector. CONSTITUTION:A plurality of ventilating cuts 2a inclined to a wheel center with a certain angle are provided in several places on the circumference of the internal peripheral surface of a molding body 2 of a rotary section of a physical quantity detector. These inclined ventilating cuts 2a act the part of a fan moving the cooling wind in the direction of the arrow showing with a continuous line from the upper side to the lower side of the molding body 2. By taking advantage of this action of the fan, uniformity of the internal temperature of the molding body 2 is improved by cooling the internal perimeter side of the molding body 2, and a detecting accuracy is improved. |
