Patent ID: 11867180
Assignee: COPELAND INDUSTRIAL LP
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A seal assembly configured for use with a high pressure single screw compressor, the assembly comprising:
a seal body having a textured outer surface, the seal body being disposed around substantially an entirety of a circumference of a main rotor and located between a suction end cavity on a first side of the seal body and a discharge cavity on a second side of the seal body opposite the first side, the discharge cavity being bounded by the main rotor and a compressor housing and having a pressure resulting from the compression of gases by the high pressure single screw compressor, wherein a difference in pressure between the suction end cavity on the first side of the seal body and the discharge cavity on the second side of the seal body is greater than or equal to 600 psi, and wherein the seal body is made of a thermoplastic or thermoset material, and wherein an outer diameter of an outer surface of the seal body is greater than an outer diameter of an outer surface of the main rotor; and
at least one attachment structure which fixedly attaches the seal body to, so as to be rotatable along with, the main rotor of the high pressure single screw compressor,
wherein the textured outer surface creates a labyrinthine path between the suction end cavity and to the discharge cavity between the compressor housing and the main rotor.