To address the issue of deterioration of soot caused by EGR technology, a shunt centrifugal oil filter is introduced based on the principle of centrifugal sedimentation, and its structure principle, critical characteristic and influencing factors are systematically reviewed. A magneto-electric test system based on speed characteristics is developed, and the key points of adaptive design of centrifugal oil filter are explored. The soot-removal effects of the centrifugal oil filter are analyzed from the aspects of physical and chemical testing of oil products, plugging life of filter element and driving test. The results show that the soot-filtration effect of centrifugal oil filter is more obvious for EGR models, but slightly redundant for SCR models. The paper analyzes the influence of soot on oil viscosity and the benefit mathematical model of centrifugal rotor filter on fuel consumption builds based on the relationship between oil viscosity on fuel economy.

Centrifugal oil filter  /  Soot  /  Speed characteristics  /  Oil analysis