This standard specifies the test items, equipment, methods and procedures for testing the performance of full-flow oil filters for internal combustion engines, and provides the minimum information required to evaluate the performance of the filter. If the manufacturer and the user agree, the test items and test contents can also be changed or carried out separately according to the user's requirements. This standard is applicable to full-flow oil filters for internal combustion engines with a volume flow rate of less than 100 L/min. JB/T 5099-1991 Test method for paper filter oil filter assemblies for internal combustion engines JB/T5099-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 5099-1991
Test method for paper filter element oil filter assembly for internal combustion engine
Issued on July 1, 1991
Implementation on July 1, 1992 by the Ministry of Machinery and Electronics Industry of the People's Republic of China
JB/T5099-1991
Subject content and scope of application
Cited standards
Test items
Test equipment
Test method
Appendix A
Appendix B
Original filtration efficiency Oil sample impurity analysis method (supplement) Impurity oil mixing and adding device (supplement) 22
Mechanical industry standard of the People's Republic of China
Test method for paper filter element oil filter assembly for internal combustion engine
This standard adopts the international standard ISO4548 "Test method for full-flow oil filter for internal combustion engine" by reference. 1 Subject content and scope of application
JB/T5099-1991
Replaces ZBJ95001-88
This standard specifies the test items, devices, methods and procedures for testing the performance of full-flow oil filters for internal combustion engines, and provides the minimum information required for evaluating the performance of filters. If the manufacturer and the user agree, the test items and test contents can also be changed accordingly or carried out separately according to the user's requirements. This standard applies to full-flow oil filters for internal combustion engines with a volume flow rate of less than 100L/min. 2 Reference standards
GB3821 Method for determining cleanliness of small and medium-power internal combustion engines 3 Terminology
3.1 Filter: A device that blocks insoluble impurities from passing through a porous fiber layer component and separates them when the liquid passes through. Note: There are some other devices that have the same function as filters, but do not work in the filtering mode described above. They cannot be considered filters, but are called purifiers, precipitators or separators.
3.2 Oil filter: A filter that filters oil as the liquid. 3.3 Full-flow oil filter: An oil filter that can pass the entire amount of oil required by the lubrication system. 3.4 Filter assembly: The assembly includes the filter housing, oil inlet, oil outlet and filter element. If there is a special need, it can also include a filter element bypass element and a check valve.
3.5 Spin-on simple filter: A replaceable assembly of oil filter with an integral filter element. It can be directly installed into the engine's lubrication system by screwing. If necessary, its assembly can also include a filter element bypass element and a check valve. 3.6 Filter element: A component in the filter that filters out insoluble impurities. 3.7 Filter element bypass element: An element that allows unfiltered oil to bypass the filter element when the specified pressure difference in the filter is reached. 3.8 Bypass valve opening pressure: The design nominal opening pressure specified in the product drawing approved by the prescribed procedure. When the bypass valve is open, a specified flow rate passes through.
3.9 Check valve: A component that prevents oil from flowing out of the filter housing when the engine is not running. 3.10 Check valve leakage: The amount of oil leaking from the check valve when the spin-on cartridge filter is inverted, expressed in mL/h. 3.11
Pressure drop Ap: The static pressure difference between two specified points at any given time in the oil flow system. 3.12 Test fluid: The test fluid used varies depending on the test content. 3.13
Rated flow Q: The nominal flow value specified by the manufacturer at the specified viscosity and pressure drop, expressed in L/min. Test flow Q: The flow rate of the test fluid through the filter in the specified test, expressed in L/min. Approved by the Ministry of Machinery and Electronics Industry on July 1, 1991 and implemented on July 1, 1992
JB/T5099—1991
5 Original resistance Ap: The pressure difference between the inlet and outlet of a filter equipped with a new filter element at the rated flow rate, expressed in kPa. 3.15
3.16 Original filtration efficiency: The ability of a filter equipped with a new filter element to filter out standard test impurities under specified test conditions in the initial working state, expressed in percentage.
3.17 Filter element clogging life t: The time when the filter element is clogged by passing the filter with a specified concentration of impurity test liquid at the rated flow rate until the pressure drop reaches 70% of the opening pressure of the filter element bypass element, expressed in h. 3.18 Internal cleanliness: The weight of impurities brought into a new filter during manufacturing, storage and transportation, expressed in mg. ）Breakage pressure: The maximum internal liquid pressure that the filter assembly can withstand, expressed in kPa. 3.19
Test items
Internal cleanliness test;
b. Filter element manufacturing integrity test:
c. Pressure drop-flow characteristic test;
d. Filter element bypass element characteristic test;
e. High pressure drop and high oil temperature resistance test:
f. Original filtration efficiency test;
g. Filter element clogging life test;
h. Hydraulic pulse fatigue test:
i. Check valve leakage test;
j. Static pressure breakage test;
k. Vibration fatigue test.
: Test equipment
a. Filter element manufacturing integrity test (bubble test) device (see Figure 1); b. Hydraulic performance test device (see Figure 2); c. Blockage life and high pressure drop test device (see Figure 3); d. Original filtration efficiency test device (see Figure 4); e. Hydraulic pulse fatigue test device (see Figure 5); f. Check valve leakage test device (see Figure 6): g. Static pressure damage test device (see Figure 7): h. Vibration fatigue test device (see Figure 8); i.Test connection block and filter element test housing (see Figure 9, Figure 10). 2
① A compressed air pipe:
③ A stop valve;
③ An adjustable pressure stabilizing device;
? A rotating joint:
? An oil tank;
Filter element rotating device:
JB/T 50991991
②A metal connecting pipe;
④A needle valve (fixed throttle valve);
A hose:
③A rotating shaft:
@A filter element to be tested:
U-shaped tube (meeting the measurement range)
Figure 1 Bubble test device diagram
①A motor-driven oil pump:
③A pressure regulating valve:
④A switch valve:
③A differential pressure gauge (to measure the pressure drop before and after the filter);③A test 1. Filter in the filter;
@ 1. Flow regulating valve:
2. Oil tank with thermostatically controlled heater and cooler:
3. Flow meter:
4. Pressure gauge:
5. Thermometer:
6. Differential pressure gauge (measures the pressure drop before and after the filter element) Figure 2. Hydraulic performance test device diagram
(The length of the pipe is specified in units of the inner diameter d of the pipe) 7.
1. Oil pump driven by a motor;
3. Pollutant impurity addition device:
? 1. Differential pressure gauge:
? 1. Filter under test;
? 1. Differential pressure gauge:
JB/T5099-1991
Figure 3 Diagram of clogging life test device
(The length of the pipe is specified in terms of the inner diameter d of the pipe)?
① 1. Test fluid oil cylinder (with a vent cover): ③ 1. Stopcock switch:
③ 1. Flow meter (glass rotor type):
? 1. Stopcock switch:
③ 1. Oil sample collection bottle
② 1. Oil tank of thermostatically controlled heater: ④ Flow meter:
③ Pressure gauge:
③ Thermometer:
@ A switch valve
② Agitator:
④ Oil pump (dynamic variable flow):
③ A cock switch:
③ A filter under test:
Figure 4 Diagram of the original filtration efficiency test device
① An oil pump driven by a motor;
③ An oil storage tank:
③ A cooling pipe (heat exchanger) ：
?一Solenoid valve:
③一Solenoid valve:
@一Pressure gauge;
JB/T50991991
Figure 5 Hydraulic pulse fatigue test device diagram
≥60mm
600±10mm
①一Oil pump:
③一Measuring device oil cylinder:Www.bzxZ.net
③一Oil drain beaker:
?一Connecting block:
③一Oil drain cover:
一Valve "A", For throttling
Figure 6 Check valve leakage test device diagram
② A metal tube:
④ A thermostat;
③ A time relay and counter, used to control the solenoid valve? and ③;
③ A filter under test;
An inlet pressure control valve
② An oil reservoir:
④ A valve "C\, to form a pressure head when the pump is stopped;③ A valve "B", for draining oil:
③ A filter under test:
@A leak measurement Measuring cup:
①A manual high-pressure oil pump;
③A pressure gauge:
A switch valve:
JB/T5099-1991
Figure 7 Static pressure damage test device diagram
①A motor-driven oil pump:
③A pressure regulating valve:
A pressure gauge:
④An input accelerometer:
③An output accelerometer
Figure 8 Vibration fatigue test device diagram
②A switch valve:
A filter under test:
③A fuel tank
②A fuel tank:
A switch valve:
③A connecting block:
③A filter under test:
Oil inlet connecting hole
Oil inlet pressure screw hole
\A\Directly punched on the
inlet channel
JB/T5099-1991
Dexin outlet pressure explosion hole"
Sold in the outer diameter 43
Inner whole. 1.5
The outlet connection hole
The plane size of the screw hole-B
and the screw
shall be matched with the filter to be tested
According to the filter outlet size D=10, 14, 24, 28mm Figure 9 Test connection block
Test method
6.1 Internal cleanliness test
The oil tight plug in the center tube must be tightly connected to the plate
The oil leaks deeply into the center tube
6.1.1 The determination method shall be in accordance with the provisions of GB3821. 6.1.2 Test results
The test report should include the following contents:
a. Filter model and manufacturer:
b. Testing unit:
c. Test date:
d. Test results:
e. Test personnel.
6.2 Filter element manufacturing integrity test
JB/T5099-1991
The standard is to measure the pressure drop of the filter element before and after the test shell. The total area of ​​the holes on the center tube is at least 1.5 times the effective area of ​​the inlet connector. This test specifies the method for judging the manufacturing integrity of the filter element, that is, to judge whether the filter element is acceptable for further testing and use. The test device is shown in Figure 1.
6.2.2 Test liquid: ethanol, kerosene or light diesel oil. 6.2.3 Test procedure
6.2.3.1 Slide the clean filter element onto the porous hollow screw, clamp and seal the two ends with pressure plates, connect it to the air source pipeline, and put the test liquid in so that the axis of the filter element is parallel to the liquid surface. 6.2.3.2 Immerse the filter element to a depth of 10~15mm from the liquid surface at room temperature. 6.2.3.3 Turn on the air source and gradually increase the pressure of the incoming air until small bubbles begin to appear on the surface of the filter element. At the same time, slowly rotate the filter element 360° around its axis.
6.2.3.4 Carefully observe whether there are any abnormal bubbles emerging from the surface of the filter element, and record the pressure when bubbles begin to appear and the pressure of uniform bubbles. 8
6.2.4 Test results
The test report shall include the following contents:
a. Filter model and manufacturer:
b. Test unit:
c. Test date:
JB/T 5099—1991
d. Pressure when bubbles begin to appear and pressure of uniform bubbles (mmH,O): e. Form and location of abnormal bubbles.
6.3 Pressure drop-flow characteristic test
6.3.1 Working characteristics of the test
6.3.1.1 The full-flow oil filter on the internal combustion engine is set between the oil pump and the main oil channel of the engine. It must produce a pressure drop so that the effective oil pressure entering the engine is lower than the oil supply pressure of the oil pump. 6.3.1.2
: In order to ensure that there is enough oil entering the engine, it is customary to make the pressure drop of the designed filter when passing the rated flow not exceed the specified value.
6.3.2 Test apparatus See Figure 2.
6d in the figure is the length of the straight section of the inlet and outlet oil pipes. 6.3.3 Test fluid
At the test temperature, when simulating normal working conditions, the engine oil with a kinematic viscosity of 24mm2/s should be selected (for example, when using CA-30 engine oil, the oil temperature is about 74℃), and when simulating cold working conditions, the engine oil with a kinematic viscosity of 500mm2/s should be selected. The engine oil temperature during the test does not exceed 100℃, and the test fluid must be clean. In order to obtain these viscosities, two different engine oils can be used. 6.3.4 Test procedure
6.3.4.1 Install the test filter on the test bench as shown in Figure 2. 6.3.4.2 Add the clean test fluid to the oil tank according to the required amount so that it only circulates through the bypass oil circuit of the test bench and does not pass through the test filter. 6.3.4.3 Turn on the heater or cooler and adjust it to the required temperature to stabilize the oil temperature. 6.3.4.4
After the oil temperature stabilizes, approximately 50% of the rated flow rate of the oil is passed through the filter under test, and the oil temperature is allowed to stabilize again. 5 When the thermometer indication stabilizes at the required temperature value, begin measuring the pressure drop across the filter. Within the range of 10% to 110% of the rated volume flow rate of the filter under test, select at least 4 approximately equal increments of flow rate (preferably 8) to pass through the filter. When recording the readings at each test point, the flow rate and pressure should be kept stable. 6.3.4.6 For oils of different viscosities, the procedures specified in 6.3.4.2 to 6.3.4.5 should be followed. 6.3.4.7 If it is necessary to measure the pressure drop across the filter element, the pressure measurement points must be set in the areas without turbulence on the upstream and downstream sides of the filter element. A special test housing can also be used for measurement. A typical test housing is shown in Figure 10. 6.3.4.8 The pressure measurement accuracy is ± 5%. 6.3.4.9 The measurement accuracy of flow is ±2%. 6.3.5 Test results
The relationship between flow and pressure drop through the filter and filter element at each viscosity shall be shown in a curve chart. The test report shall include the following:
a. Filter model and manufacturer;
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