Page 68 - ingenioren

Lube Filtration

Overview
LUBE FILTRATION Diesel Engine Lube Filtration Emission control technologies such as exhaust gas

So much of the developed world’s infrastructure
can be attributed to the application of the diesel
engine. The evolution of the diesel engine has been recirculation (EGR), diesel particulate filtration (DPF),
and the introduction of closed crankcase ventilation
significant since first patented by Rudolph Diesel in (CCV) have a direct impact on the lube system.
1892, however the Today’s oil is asked to handle more contamination
working principle for extended periods of time. A well designed
remains constant. lube filtration system is engineered up front with
Much the same can overall engine strategy in mind to provide maximum
be said of the lube or protection. The benefits of this up front design
oil system within the have resulted in enhanced filtration medias and
modern diesel engine. inclusion of traditionally separate components into a
The lube system streamlined system.
functions as the central
circulatory system to Understanding end user needs is a commitment
these powerhouses Donaldson takes seriously. It is with this in mind
in order to keep that we strive to offer design flexibility to meet field
them running at top application needs. Longer life medias, extended oil
performance. While drain products, and traditional product offerings
the internal demands are combined to provide a solution for every diesel
continue to evolve, the engine application.
basic principles remain
the same.

Today’s diesel engines are tasked with running more Diesel Lube Oil Trends & Changes
efficiently while leaving a smaller impact on the
surrounding environment. These demands continue Changes in Lube Oil Systems
to drive significant changes to engines and the • Increased EGR rates, soot & acid
supporting components. Lube filtration engineers • Crankcase ventilation – less oil
consumption, thereby less make up oil
continue to introduce technology to keep these lube added and oil has to work harder
systems functioning at top performance while helping • Improved cleanliness for tighter
improve the environment through longer oil drain component clearances
intervals and the introduction of green materials. • Typical contaminants
• Design strategies (bypass over-pressure
valves, cold flow)
Donaldson introduced three extended life lube filters
in the early 1980s for three popular U.S. engine Changes in end user oils
makes: Detroit • CJ-4 vs. CI-4 Plus
Diesel, Cat, • Increased levels of fuel dilution due to
and Cummins. alternate fuels
Extended • New contaminants due to alternate fuels
service in 1984 • Low SAPS oil compatible with emissions
aftertreatment systems
was primarily
focused on a Filtration requirements evolving as a result
more robust • Trend towards “green” cartridge filter
filter that would • System approach, integration of
last through components such as oil coolers
an extended • Enhanced protection while maintaining
service intervals (bypass or secondary
mileage interval. filters, extending service intervals &
durable medias)

Engineering drawing of our first high efficiency, long life lube spin-on

66 • Engine Liquid Filtration www.donaldson.com