PISTON COMPRESSOR ASSEMBLIES LUBING SYSTEM Russian patent published in 2014 - IPC F04B39/02 

FIELD: machine building.

SUBSTANCE: proposed system comprises lubing unit with pressure filter and main oil pump, sump and connection pipes. Note here that said main pump is arranged at unit housing and articulated with compressor shaft while pump inlet is connected via suction pipe with oil intake in sump and pump outlet is connected with first hole in unit housing bottom. Oil channel is made in unit housing. Note here that, additionally, it incorporates electrically drive pre-starting lubing pump with pressure chamber connected via pipe with second hole in unit sidewall. Oil channel extends from filter inlet to second hole while first through hole is communicated with oil channel.

EFFECT: simplified connection within the system.

3 cl, 3 dwg