| 摘要 |
In a wastegate valve which is provided in the bypass path bypassing the turbine of the turbocharger in the exhaust gas path and which opens and closes the bypass path, the wastegate valve is provided with a valve seat which is formed in a plane perpendicular to or tilted with an inclination angle with respect to an axial direction of the bypass path, and a valving element which is pivotable around a pivot point which has a relationship of 0°<²<90° with respect to the plane including the valve seat where ² is an inclination angle, the valving element being moved away from or closer to the valve seat by pivotation of the valving element to open or close the valve. |
