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FLOW DIAGRAMCURRENT · v1.0.0DIAG-AIR-INTAKE-FLOW

Air Intake Filtration System Flow Diagram

Illustrates the staged protection strategy in air intake systems. The pre-cleaner ejects coarse dust particles centrifugally, extending main element service life by 30–60%. The main filter element provides rated dust-holding capacity and efficiency per ISO 5011. The safety element prevents engine ingestion if the main element is incorrectly installed or fails. The restriction indicator signals when the main element has reached its terminal differential pressure.

Air Intake Filtration System Flow DiagramSequential air intake filtration flow: ambient dusty air enters a pre-cleaner or cyclonic separator, passes through the main filter element, through a safety element, and exits as clean air to the engine intake. A restriction indicator monitors differential pressure across the main element. Based on ISO 5011 and SAE J726.AMBIENT AIRdust ejectedPRE-CLEANERcyclonic separatorMAIN FILTERELEMENTISO 5011 / SAE J726RESTRICTIONINDICATORSAFETYELEMENTsecondary protectionENGINE INTAKECLEAN AIRDUST HOLDING CAPACITY (DHC) — measured per ISO 5011: mass of ISO A2 fine test dustretained by filter to terminal restriction ΔP · determines service intervalISO 5011 · SAE J726
Left to right flow: ambient air with dust particles (orange circles of various sizes), pre-cleaner box with cyclonic separator symbol ejecting dust downward, main filter element (large hatched rectangle with ISO 5011 label) with restriction indicator gauge above, safety element (smaller hatched rectangle), clean air line (green) with only trace fine particles, and engine intake block with three cylinders. Dust holding capacity note at bottom explains DHC measurement per ISO 5011.

GOVERNING STANDARDS

ISO 5011
SAE J726

ELIMFILTERS TECHNOLOGIES

MACROCORE™

APPLICABLE SYSTEMS

Air Intake Protection

REVISION METADATA

Versionv1.0.0
Statuscurrent
Last Reviewed2026-07-08
Next Review2027-07-08

RELATED ENGINEERING ARTICLES

→Air Restriction
→Air Intake System Design
→Dust Holding Capacity
→Service Intervals
→Airflow Engineering

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