Patent ID: 9267503
Filing Date: 2016-02-23
CPC Classification: A61M,B01D,F01C,F04C

Claim Text:
1. A system comprising: a first inlet configured to receive fluid that is to be compressed; a first piston coated with abradable coating, the first piston configured to rotate around a first eccentric of a shaft in an orbital fashion in order to compress the fluid, the fluid being used as a lubricant for lubricating the first piston, the use of the fluid for lubricating and the abradable coating eliminating a need of another lubricant for lubricating the first piston; a first outlet configured to discharge the compressed fluid; a second inlet configured to receive, from a separator device, exhaust gases that have been separated from the fluid, the one or more gases being a subset of gases forming the fluid; a second piston coated with the abradable coating, the second piston configured to rotate around a second eccentric of the shaft in the orbital fashion, axial surfaces of the second piston being parallel to axial surfaces of the first piston, the exhaust gases being used as a lubricant for lubricating the second piston, the use of the exhaust gases for lubricating and the abradable coating of the second piston eliminating a need of another lubricant for lubricating the second piston; and a second outlet configured to exhaust the gases; wherein locations of at least one of the first inlet and the second inlet are moved to adjust timing of beginning of compression cycle for compressing the fluid.