DIESEL SYSTEM AND OFFGAS PROCESSING PROCESS Russian patent published in 2014 - IPC F01N3/00 F01N3/20 

FIELD: engines and pumps.

SUBSTANCE: diesel system comprises diesel, NO_x emission reducer arranged downstream of the engine, exhaust line between said engine and said NO_x emission reducer. Besides, it comprises bypass line with first end connected to discharge line upstream of NO_x emission reducer and bypass valve connecting discharge line with bypass line. Note also that said bypass valve directs offgas flow from discharge line into NO_x emission reducer in open state and inhibits from discharge line into said reducer in closed state to allow the flow from discharge line into bypass line. Note that controller can be used for bypass valve opening and closing when engine operating conditions reach preset level.

EFFECT: efficient operation of NO_x catalytic reduction unit or catcher.

19 cl, 1 dwg