| 摘要 |
<p>A water conditioner valve (10) includes a main housing (12) configured for providing fluid communication between a plurality of locations, and having first (30) and second valve chambers (32), a main piston mounted for reciprocal movement in the first valve chamber and having a main piston rod (44) attached thereto, the main piston rod provided with a main cam follower (50); a supplemental piston mounted for reciprocal movement in the second valve chamber and having a piston rod (74) attached thereto, the supplemental piston rod provided with a supplemental cam follower; the valve also having a cam member (78) having an axis of rotation (80), a first cam track (96) for receiving the main cam follower, and a second track (94) for receiving the supplemental cam follower, the cam tracks being constructed and arranged on the cam member so that rotation of the cam member will cause movement of the pistons along a linear axis which is parallel to the axis of the cam member for controlling the relative positions of the pistons in the respective chambers to obtain the desired fluid flow. When used as a valve in a water conditioning apparatus with a regeneration cycle, the supplemental piston is a brine piston which controls eduction and fast rinse steps.</p> |
