High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods

A high suction pressure thrust load balance assembly configured for use with a single screw compressor, the high suction pressure thrust load balance assembly comprising a sealing baffle that is keyed to, so as to be rotatable along with, a main rotor drive shaft of the single screw compressor, wherein the sealing baffle is configured to create a force or load to counteract an axial force of the main rotor drive shaft created during rotation of the main rotor drive shaft;

• wherein the single screw compressor further comprises at least one bearing positioned between the housing and the main rotor drive shaft, a seal housing, at least two seals positioned with respect to the seal housing, and a seal pressure cavity defined by the at least one bearing, the housing, the seal housing, the at least two seals and the main rotor drive shaft, and the sealing baffle projects into the seal pressure cavity.