Comprehensive Engine Oil Filter Test Bench

The test bench is mainly used to test the differential pressure-flow characteristics, filter element bypass valve characteristics, pressure drop resistance, initial efficiency, and clogging life of oil filters.

The test bench system mainly consists of a variable speed oil pump unit, pressure sensor, flow meter, control valve, return valve, bypass valve, differential pressure sensor, and related accessories.

Application

This test bench is designed for comprehensive evaluation of engine oil filters, including spin-on filters and filter bypass valves. It is suitable for:

Production quality control and factory testing

Research and development of engine oil filters

Verification of filter efficiency, pressure drop, and service life

Testing the performance of bypass elements and blocked filter behavior

The bench measures pressure drop, bypass characteristics, original filtration efficiency, and blocked filter life under controlled flow and temperature conditions.

Standards 

The system is designed to meet the following standards:

JB/T 5088.2—2008 – Internal combustion engine spin-on oil filters

Section 6.2: Pressure drop – flow characteristic test

Section 6.3: Filter bypass element characteristic test

Section 6.6: Original filter efficiency test

Section 6.7: Blocked filter service life test

Notes:

Sections 6.2, 6.3, and 6.7 use CC30 diesel engine oil (temperature controlled below 100°C).

Section 6.6 uses 0# diesel or -10# light diesel at room temperature.

Feature

Comprehensive Testing: Measures pressure drop, bypass valve behavior, filter efficiency, and blocked filter life in a single bench.

High Accuracy: Precision sensors and controlled flow/temperature ensure repeatable, reliable results.

Automatic Control: Integrated control system allows automated testing and data acquisition.

Durable Design: Stainless steel piping, high-capacity filters, and robust frame for long-term use.

Flexible Operation: Supports different oil types and flow rates per manufacturer specifications.

Technical Parameters

Main Test System:

Original Filter Efficiency Test System:

Accessoriess

Test System: Pressure-drop and flow measurement circuits according to JB/T 5088.2 Figures 1, 2, 3, and 9; includes purification filters and auxiliary oil storage systems.

Purification Filter System: High-capacity filter (β10(c) ≥ 200) ensures clean test medium, stable and repeatable results.

Auxiliary System: Oil storage tank and auxiliary pump for convenient operation.

Piping: Stainless steel tubing, designed to avoid dead zones and sediment accumulation.

Temperature Control System: Heating and radiator units with safety compliance.

Bypass Valve Detection System: Separate measurement line with pressure sensors and display.

Original Filter Efficiency & Service Life System: Includes peristaltic pump, bypass valve, differential pressure sensors, filtration container, and contaminant agitator.

Test Bench Frame: Aluminum alloy profiles and stainless steel panels; reference size 3000 × 1200 × 1900 mm (final dimensions by mutual agreement).

Test Procedures

The operation procedure for the Comprehensive Engine Oil Filter Test Bench includes the following steps:

Power On and Computer: Ensure the power and computer are on before conducting the test.

Filter Installation: Install the oil filter to be tested onto the test bench.

Flow Rate and Temperature Conditions: Set the flow rate and temperature conditions according to the test requirements.

Data Recording: Record the data generated during the test using data acquisition equipment.

Regular Filter Performance Checks: Regularly check the filter performance during the test to ensure it remains within the specified range.

These steps effectively evaluate the performance of the oil filter and ensure it meets standard requirements.