METHOD FOR ENGINE AND ENGINE SYSTEM Russian patent published in 2017 - IPC F01M1/18 F01M11/12 F02B77/08 F02D28/00 G01F23/14 

FIELD: engine devices and pumps.

SUBSTANCE: method for an engine includes a step, where with the help of an electronic controller (48) they indicate both the crankcase ventilation system deterioration (16) and the oil level in the crankcase oil sump (32), based on a single common crankcase sensor (63). The oil level in the crankcase oil sump (32) is determined by the electronic controller (48) based on the pressure equalization in the crankcase (28) with the atmospheric pressure. In this case, the single common crankcase sensor (63) is a pressure sensor that reads the pressure below the oil level in the crankcase sump (32). An engine system is also disclosed.

EFFECT: reduction of engine hardware and of noises in the pressure signal and increase in the accuracy of pressure determination.

12 cl, 4 dwg