Patent ID: 6585270
Filing Date: 2003-07-01
Classification: F16J

Abstract:
A seal ring assembly for a rotor shaft comprising:an upper seal casing defining a first radially inwardly directed channel; a lower seal casing defining a second radially inwardly directed channel, said upper and lower seal casings being joined about a shaft to form a substantially 360Â° seal casing; first and second seal rings, each composed of upper and lower seal ring segments respectively disposed in said first and second radially inwardly directed channels of said upper and lower seal casings, said upper and lower seal ring segments being resiliently joined about the shaft to form a substantially 360Â° seal with said upper and lower ring seal segments of each said seal ring resiliently secured together at circumferential interfaces therebetween; and a seal structure defined at each said circumferential interface to substantially seal a circumferential gap between said upper and lower seal ring segments, each said seal structure extending radially so as to substantially reduce leakage flow in an axial direction through said circumferential gap.