METHOD OF CONTROL OVER WASTE GAS CIRCULATION VALVE AND ICE CHOKE Russian patent published in 2013 - IPC F02D43/04 F02D41/26 F02D41/18 F01N11/00

Abstract RU 2495268 C2

FIELD: engines and pumps.

SUBSTANCE: additionally defined is used oxygen preset concentration ([O₂]_spEM) indicating oxygen concentration in exhaust pipe. Computed is reference magnitude (Air_reference) of air as a function of preset concentration ([O₂]_spEM). Defined is oxygen concentration ([O₂]_fdIM, [O₂]_fdEM) in return circuit indicating oxygen concentration in engine. Actual fresh airflow rate 1 and reference magnitude (Air_reference) of air are compared to obtain data on position of choke 10. Besides, in compliance with proposed method, return circuit oxygen concentration ([O₂]_fdIM, [O₂]_fdEM) and preset concentration ([O₂]_spEM) are compared to obtain data on the position of waste gas circulation valve 16. Finally, choke 10 and waste gas circulation valve 16 are controlled in compliance with appropriate info on their position.

EFFECT: perfected method.

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RU 2 495 268 C2

Authors

Vennettilli Nando

Majra Massimiliano

Dates

2013-10-10—Published

2009-05-13—Filed