METHOD OF DIAGNOSING ICE WITH TURBO COMPRESSOR Russian patent published in 2012 - IPC G01M15/00 

FIELD: engine and pumps.

SUBSTANCE: invention may be used for diagnosing piston ICEs with turbo compressor 3 and oil samp gas circulation system. Proposed method comprises defining pressure P_C.H ICE crankcase at rated rpm to be compared with certificate rating. In case P_C.H is three and more times higher than certificate rating, ICE rpm is increased to maximum magnitude. Pressure P_c.max inside crankcase is defined at maximum rpm and compared to P_C.H.. Said comparison allows pinpointing the type of ICE failure. In case P_c.max differs from P_C.H by not over 10%, wear of sleeve assembly 1 may be revealed. In case P_ct.max increases relative to P_C.H by 25% and higher, wear of turbo compressor bearing assembly 3 on turbine wheel side 5 may be revealed. In case P_c.max decreases relative to P_C.H by 25% and mote, wear of wear of turbo compressor bearing assembly 3 on turbine wheel side 4 may be revealed.

EFFECT: higher validity of diagnostics.

4 cl, 1 dwg