Patent ID: 9482230
Filing Date: 2016-11-01
CPC Classification: F04B,F04C

Claim Text:
1. A method for providing increased pressure and pressure difference for a screw compressor, comprising: providing a housing having an inlet for receiving a gas to be compressed by the compressor and an outlet for discharging pressurized compressed gas; a pair of meshing threaded rotors, each rotor having an axis and being rotatably received in the housing, each rotor having a first end near the inlet and a second end near the outlet; at least two side-by-side bearings rotatably carrying each rotor about its axis, the at least two side-by-side bearings positioned near each of the first end and the second end of each rotor; delivering a fluid via a conduit formed in the housing with an outer surface of at least one bearing of the at least two side-by-side bearings for selectably providing pressurized fluid in a radial direction on the outer surface of the at least one bearing of the at least two side-by-side bearings relative to the at least one bearing having an axis being parallel to an axis of another bearing of the at least two side-by-side bearings; and selectably providing pressurized fluid on the outer surface of the at least one bearing of the at least two side-by-side bearings.