VALVE APPARATUS

摘要

A rotating valve apparatus comprises a cylindrical casing (41); a shaft (42) arranged symmetrically in the casing; a member (43) fixedly attached to the shaft and in close fit with the cylindrical casing, defining separated chambers (44a-b) within the casing; at least one outlet (46a-f; 61; 71) fixedly arranged along the circumference of the casing; and a plurality of axially arranged inlets (45a-b), each of which being constantly in fluid communication with a respective one of the separated chambers, wherein the axially arranged inlets are alternately in fluid connection with the outlet fixedly arranged along the circumference of the casing in response to rotation of the shaft and the member with respect to the casing. The member (43) has an elliptically shaped cross section.