Throttle valve unit comprises throttle plate with peripheral groove, in which tolerance ring is mounted which can rotate when valve operates and has gap, in which stop is mounted

摘要

The throttle valve comprises a throttle plate (2) with a peripheral groove (2a), in which a tolerance ring (3) is mounted which can rotate when the valve operates. This has a gap (3'), in which a stop (4) is mounted, in a sector, defined by the perpendicular to the valve shaft and the arm of the ring opposed to its direction of rotation, of 15 - 45[deg].