Rotary slide valve for controlling flow characteristics of cooling circuit of internal combustion engine in vehicle, has spiral spring that is operated on one cross-section adjustment member to exert force in direction of stop position

摘要

The valve has cross-section adjustment members (1, 2) i.e. cylindrical hollow bodies, rotatable around a rotational axis by a drive i.e. electrical servo-motor, and around a partial angle between an initial position and an end position, respectively. The angle is defined by a stop position arranged between the initial and end positions. The members are coaxially arranged and form-fittingly connected by a driver device (7) during exceeding the angle. A spiral spring (8) is operated on the latter member to exert force in a direction of the stop position.