INNER SEAL ASSEMBLY FOR ROTARY PISTON MACHINES

摘要

The inner seal assembly for rotary mechanisms having a rotor mounted within a housing for rotation on an eccentric of a crankshaft comprises a seal-ring interconnected with a support ring for conjoined rotation and limited axial movement relative to each other and a biasing means disposed between the two rings for urging the rings to separate. A resilient seal means is carried by the outer peripheral portion of the seal-ring. The unitary inner seal assembly is positioned in a recess defined by a peripheral step in a disk attached to the crankshaft and an annular, axially extending wall formed in the rotor so that the seal-ring is in sealing abutment against the radial wall of the peripheral step while the resilient seal means seals the interstices between the axially extending wall of the rotor and the periphery of the disk. The support ring and rotor are constructed and arranged to interconnect and thereby provide conjoined rotation of the inner seal assembly and rotor.