阅读说明：本技术 排气控制阀 (Exhaust control valve ) 是由 L·C·西毛 J·布拉哈 M·L·A·门德斯 C·科斯塔 R·德索扎 于 2019-04-05 设计创作，主要内容包括：一种阀,其包括：外壳；旋转构件,其定位在外壳内；和致动器,其与旋转构件接合；其中,旋转构件具有大体上圆柱形形状和至少一个空腔,该至少一个空腔在大体上垂直于大体上圆柱形形状的轴线的方向上延伸穿过大体上圆柱形形状的一部分；其中,旋转构件定位在外壳内,使得在阀的操作期间,致动器使外壳内的旋转构件围绕大体上圆柱形形状的轴线旋转,并且在旋转构件围绕轴线的约90°的旋转完成时,至少一个空腔在外壳内变得对齐,以将阀从打开状态改变至关闭状态,或者从关闭状态改变至打开状态；并且其中,旋转构件包括无机纤维和至少一种粘结剂。还设想了制造和使用该阀的方法。(A valve, comprising: a housing; a rotating member positioned within the housing; and an actuator engaged with the rotating member; wherein the rotating member has a substantially cylindrical shape and at least one cavity extending through a portion of the substantially cylindrical shape in a direction substantially perpendicular to an axis of the substantially cylindrical shape; wherein the rotary member is positioned within the housing such that during operation of the valve, the actuator rotates the rotary member within the housing about an axis of the generally cylindrical shape and upon completion of about 90 ° of rotation of the rotary member about the axis, the at least one cavity becomes aligned within the housing to change the valve from the open state to the closed state, or from the closed state to the open state; and wherein the rotating member comprises inorganic fibers and at least one binder. Methods of making and using the valve are also contemplated.)