Heavy-Duty Diesel Engine Cooling Systems. Tom McKinley Cummins, Inc. Objectives. Provide background information useful to tomorrow’s lab project (Evaluation of a Water Cooled Exhaust Manifold). Topics covered: Typical heavy-duty (HD) diesel engine designs
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Heavy-Duty Diesel Engine Cooling Systems
The optimal cooling system meets system requirements while
minimizing life cycle cost (initial cost, warranty/reliability,
operating/fuel cost). Tomorrow’s lab will give you the opportunity
to evaluate designs from a life cycle cost perspective.
Water Manifold/Water Header
Charge Air Cooler
Fan Drive (Drive Ratio, Fan Clutch)
Both equations are of the form:
Note that voltage (v) is analogous to pressure drop,
and current (i) is analogous to volumetric flow rate.
Hydraulic resistance is a function of the flow rate. Because of
this non-linearity, iteration is needed to obtain hydraulic circuit
Note: Tomorrow’s lab includes optimization of a truck cooling package
Vertical Exhaust Louver