Automatic Engine Air Filter Test Stand
The Automatic Engine Air Filter Test Stand is designed to evaluate the performance of engine intake air cleaners and compatible flat-sheet filter media. Using controlled airflow and gravimetric dust loading, the system supports the assessment of airflow restriction, differential pressure, dust collection efficiency, and dust-holding capacity in accordance with the applicable test procedure.
The system features a modular design, precision laminar flow elements (LFE), high-precision pressure sensors, and a closed-loop dust feeding system. Its automated control software manages test operation, data acquisition, and reporting, helping laboratories conduct repeatable filter performance evaluations.
The modular configuration allows the blower unit to be installed above or below the main test system to optimize laboratory space. Optional accessories can extend the system's capabilities to meet specific filter testing requirements.
Application
(1) Engine intake air filters for automotive and industrial applications.
(2) Air cleaners used in internal combustion engines.
(3) Flat-sheet air filter media.
(4) Filter media development and performance comparison.
(5) Automotive and industrial filtration product research.
(6) Filter quality control, dust-loading evaluation, and laboratory testing.
Standards
ISO 5011:2025 — Inlet air cleaning equipment for internal combustion engines and compressors — Performance testing
ISO 12103-1:2024 — Road vehicles — Test contaminants for filter evaluation — Part 1: Arizona test dust
Parameters
| Parameter | Specification |
|---|---|
| Available airflow configurations | 100–1,000 SCFM or 100–2,000 SCFM |
| Flow measurement method | Single or multiple laminar flow elements (LFE) with precision differential pressure sensors |
| Flow measurement accuracy | ±0.86% |
| Pressure measurement system | Dual-range precision differential pressure sensors |
| Pressure measurement accuracy | ±0.15% |
| Dust feeding system | Integrated, closed-loop gravity screw feeder |
| Dust feed rate | 1–100 g/min |
| Dust feeding accuracy | ±0.1 g |
| Test dust types | Fine, medium, and coarse grades, depending on configuration and test procedure |
| Dust feeding control | Closed-loop automatic control |
| Control and data acquisition | Customized LabVIEW-based software |
| Data output | Graphical and tabular reports; printing and data storage |
| Computer system | PC, LCD monitor, and printer included |
| Vacuum system | Integrated variable-speed rotary-vane vacuum pump |
| Noise control | Sound-insulating cover for the vacuum pump |
| Power supply | AC 460 V, 3-phase, 60 Hz, 50 A; other voltage configurations available |
| Compressed-air requirement | 40 SCFM at 90 psig, approximately 68 standard m³/h at 620 kPa |
Features
(1) Automated air filter performance testing using controlled airflow and dust loading.
(2) Modular system architecture for flexible laboratory installation.
(3) Precision airflow measurement using laminar flow elements and differential pressure sensors.
(4) Closed-loop dust feeding with an adjustable feed rate of 1–100 g/min.
(5) Supports testing with appropriate grades of standardized test dust.
(6) Integrated variable-speed vacuum pump with sound-insulating cover.
(7) Dual-range differential pressure measurement for monitoring filter pressure loss.
(8) Automated test control and data acquisition using customized LabVIEW-based software.
(9) Automatic generation of graphical and tabular test reports.
(10) Includes computer, monitor, and printer for test operation and reporting.
(11) Flexible installation options to help optimize laboratory space.
(12) Optional accessories available to accommodate additional filter testing requirements.
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