LO 10-6 Identify and describe the purpose, types, and operation of oil filtration systems

LO 10-06: Identify and describe the purpose, types, and operation of oil filtration systems.

Filtration Systems

Almost all diesel engine lubrication systems use full-flow lubrication. This means any oil reaching internal engine parts has passed through an oil filter. To increase the amount of filtration performed by a lubrication system, a supplemental, partial-flow—or bypass—filtration circuit is also used. Engine oil is filtered through an oil bypass filter and returned directly to the sump. No oil passing through the bypass filter actually reaches moving engine parts Figure 52.

FIGURE 10-52: A supplemental filtration circuit contains a bypass filter. The bypass filter adds extra capacity to the oil filtration system.

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