Oil Separator Test Rig，ISO 11155 oil droplet separation tester

The Oil Separator Test Rigis designed for automated testing procedures in order to obtain results regarding flow regimes and gravimetric and fractionalparticleremoval efficiency.

Crankcase ventilation systems are using oil separators in order to reduce oil consumption and even more important nowadays to reduce final emission rates of the engine. Catalysts can also be adversely affected by burned oil residuals in the exhaust. Crankcase ventilation systems CCV are optimized by measurements of:

- fractionalparticleremoval efficiency

- discharge curve (pressure and volume flow)

- pressure regulation curve

- leakage

at engine test benches.

An increasing number of oil separator manufacturers are now using special test benches like the Q 140 to study the performance and to optimize separators design by simulating the above parameters. The sample is tested in over and under pressure mode with an especially conditionedaerosol(mass flow rate, temperature). The environment of the sample is tempered as well. The separated and passed oil is measured depending on volume flow rate. The measurement is done gravimetric with an absolutefilter. The oil mass leaked from the separator is detected online. Likewise the leakage of the oil drain can be measured. The test rig simulates typical application of oil mist separators. Recording the pressure regulation curve is made by measuring the “pressure in the crankcase ventilation system ” versus “air intake pressure” at several volume flow rates. The fractionalparticleremoval efficiency has also become an important parameter in recent studies.

Applications

Test System SPT for testing of separator, especially for blow-by oil mist separators

Standards

ISO 11155 series – air filtration and separator standards

DIN 71460-1/2 – cabin and related oil mist separator standards

ISO 12103-2 – test dust and particle characteristics

ISO 5011 – filter media performance testing (referenced for separator elements

ISO/TS 16332-2006 – Road vehicles — Crankcase ventilation systems — Test method for oil mist separators

ISO 4020-2001 – Rubber — Determination of effect of liquids on material properties (applicable if testing rubber components of separators)

SAE J905-1999 – Automotive CCV systems — Test methods for crankcase ventilation oil separators

Features

compact test bench

wide range of flow rate

sample holder adjustable for different sample dimension

heated oil mist generator (maximum 120°C)

closed loop system for different pressure regimes

possibility of opening up the secured testing channel

heatable Aerosol Generator ATM 243 also utilizable without SPT 140

Software guided testing procedure

test rig control and data acquisition software for Windows

precise flow rate analysis

Technical data

Parameter title	Unit	Value
test flow rate	m³/h	0.9 ... 18 or 1.2 ... 24
testaerosol	-	dropletaerosolbased on mineral or synthetic engine oil
differential pressure of test specimen	Pa	± 20000
operating medium, gas/air	-	room air (common laboratory conditions)
operating medium, gas/air - compressed air supply	bar	max. 6 (300 L/min)
operating medium, water - water supply	bar	max. 6 (from water network, max. 20 L/h, for cooling circuit)
power supply	-	400 V, 16 A
aerosolgeneration technology	-	ATM 243 or LDG 243 (optional)
dimensions (w × h × d)	mm	2100 × 1200 × 925
weight	kg	approx. 400

Accessories

oil droplet generator LDG 244 to produce large droplets for the simulation of oil film and oil gush effects

Test Procedure

Install the separator in the adjustable sample holder, ensuring complete sealing.

Start the oil mist generator and set the flow rate and temperature.

Start the automated test program; software guides the test process.

Measure separation efficiency, oil leakage, and differential pressure changes.

Record pressure regulation curves and flow characteristics.

Upon completion, move the separator to a safe area; software generates the test report.

Export data for long-term analysis, performance optimization, and standard compliance.

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