| 摘要 |
PURPOSE:To attain a stable control characteristic of less variance by providing the third stop means which limits the movement of the second weight in the first pressure adjustment stage to prevent the contacting between the first and the second weights at the end of this first pressure adjusting stage. CONSTITUTION:A valve body 2 is attached to an output shaft 1 of an automatic speed change gear or the like, and the first and the second weights 4 and 5 and a pressure governor valve body 6 are arranged concentrically in a space 3 in the valve body 2 so that they can be moved in the radial direction. The first weight part 4 consists of a stem part 4a, a flange part 4b, and a main weight part 4c, and the first stop means 10 is formed in the lower part of the space 3 to limit the movement of the first weight 4. A lower face 4d of the first weight 4 limits the movement of the second weight 5. The third stopper means 11 is attached to the outside circumferential face of the second weight 5 and is brought into contact with the upper part of the pressure governor valve body 6 until the rotative speed reaches a prescribed value. When the pressure governor valve body 6 is moved outward in the radial direction, fluid entrance and exit ports 14 and 15 are connected. |
