Rotary bushing for fluid medium flow - has rotary pistons at mutual angle in fixed housing with communicating ducts

摘要

At least two rotary pistons (4, 5) are mounted in the fixed housing with one set at an angle of pref. 90 deg. to the other one such that the through ducts (9, 10, 11, and 9a, 10a, 11a) in the pistons are connected together. The pistons can be supported rotatably w.r.t. each other by bearings (6). The channels can be axially aligned in the pistons and each open into an associated ring groove (14, 13, 12, 21, 22), which are each radially sealed on both sides by seals (24) in the housings (2, 3) so that the fluid cannot flow into the other adjoining ring grooves. The number of ducts is not restricted. ADVANTAGE - Effective design for the medium transfer at any angle.