Patent ID: 6230744
Filing Date: 2001-05-15
Classification: D06B,F16K,Y10T

Abstract:
A valve for fluid media, comprising:a valve housing defining a valve chamber;a valve body disposed in the valve chamber and rotatable along an axis of rotation defining an outlet channel extending along the axis of rotation, and a lateral inlet fluidly connected with the outlet channel;at least two feed channels opening into the valve chamber from opposite sides, adapted for selectively entering in fluid connection with the corresponding lateral inlet by rotating the valve body; anda return space adjacent to the valve body,wherein the valve body further comprises:a center portion;an inlet connecting port disposed on a center plane perpendicular to the axis of rotation on a periphery of the center portion, connected to the lateral inlet;at least one return connecting port disposed on a center plane perpendicular to the axis of rotation on a periphery of the center portion, connected to at least one corresponding slanted channel of the center portion leading to the return space;sealing ridges disposed at each axial end of the valve body, separated from the center portion by the return space; anda return line leading from the return space to outside of the valve housing, wherein, when the lateral inlet is in fluid connection with one of the at least two feed channels, the at least one return connecting port is adapted for entering in fluid connection with the other feed channels, so that each of the at least two feed channels is in fluid contact with a corresponding one of the inlet and return connecting port.