JB/T 7763.2-1995 Test methods for starting fluids and devices for internal combustion engines

This standard specifies the test methods for starting fluids and devices with ether as the basic component. This standard applies to starting fluids and devices used when starting internal combustion engines (diesel and gasoline engines) and their power units (automobiles, construction machinery, tractors, ships, mobile power stations, etc.) under low temperature conditions. JB/T 7763.2-1995 Test methods for starting fluids and devices for internal combustion engines JB/T7763.2-1995 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7763.2-95
Starting fluid and device for internal combustion engine
Test method
Published on June 16, 1995
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1996
Mechanical Industry Standard of the People's Republic of China
Starting fluid and device for internal combustion engine
Test method
1 Subject content and scope of application
This standard specifies the test method for starting fluid and device with acetaldehyde as the basic component, JB/T7763.2-95
This standard applies to starting fluid and device used when starting internal combustion engines (diesel and gasoline engines) and their power units (automobiles, construction machinery, tractors, ships, mobile power stations, etc.) under low temperature conditions. 2 Reference standards
GB/T 508
GB2430
GB13042
JB/T 7763.1
ZBJ90002
3 Test methods
3.1 Starting fluid
Method for determination of ash content of petroleum products
Method for determination of actual colloid content of engine fuel
Method for determination of freezing point of jet fuel
Packing container spray can
Technical conditions for starting fluid and device for internal combustion engine
Test method for starting performance of oil engine
3.1.1 For each grade of starting fluid trial-produced and produced by the starting fluid manufacturer, more than 200mL of starting fluid shall be reserved for verification and testing within three months.
3.1.2 Determination of non-volatile components
Perform according to GB509. The colloid content shall comply with the provisions of Article 3.1.5 of JB/T7763.1. 3.1.3 Freezing point determination
According to GB2430, the freezing point should meet the requirements of Article 3.1.3 of JB/T7763.1. 3.1.4 Water content, solubility and ash test Take 10mL of starting liquid and put it into a volumetric bottle, cover it, and freeze it in a cold box at 45±2℃ for 4 hours. Take it out and observe whether ice particles or undissolved solids appear on the black surface a.
: Put the 50mL sample after inspection into a weighed crucible, install a smoke hood, and then ignite it to burn until the flame b.
goes out naturally, then put the worm into the drying box until it is completely ashed, and measure the ash weight. 3.1.5 The starting liquid must be tested for machine matching, and the test method shall be carried out in accordance with the requirements of ZBJ90002. 3.1.5.1 When checking the procedure and injection amount of the starting fluid provided by the manufacturer, spray the starting fluid into the sealed measuring tube and record the time and number of times, and measure the average volume or weight. 3.1.5.2 Test the minimum starting temperature on the internal combustion engine in accordance with the provisions of ZBJ90002. 3.1.5.3 Record the instantaneous changes in starting current, voltage, and speed, record the time and speed change curve for the internal combustion engine to reach stable operation after stopping the injection of starting fluid, and record the changes in the pressure in the combustion chamber during the starting process. Read the maximum combustion pressure, maximum speed and pressure rise ratio %
3.2 Spray circuit
Approved by the Ministry of Machinery Industry on June 16, 1995
Implementation on July 1, 1996
JB/T 7763.295
3.2.1 Use a 2.5-level pressure gauge with a range not exceeding 2MPa to measure the pressure of the spray can at 20℃. 3.2.2 Leakage test
3.2.2.1 High-temperature leakage
Identify and weigh the three spray cans, and record the total weight and net weight: b.
Put the three spray films in a humidity chamber at a temperature of 50±2℃ and keep them for 168h: e.
Take them out of the constant temperature chamber and keep them warm at room temperature of 20±2℃ for 4±0.5h, identify and weigh each can, record the weight loss at each end, and calculate the percentage of counterweight. 3.2.2.2 Low temperature leakage
Put the spray chain after the high overflow test in a cold box at -45±2℃ and keep it warm for 144h; b.
Take them out of the cold box one by one and weigh them, record the weight loss of each piece, calculate the percentage of the net weight, and then put them back into the cold box.
3.2.3 Emptying rate test
Take out the spray tips one at a time from a cold box at 45±2℃, spray for 5s and stop for 5s in a cycle, release the starting liquid, and collect it in a container by using the drainage and air accumulation method (water temperature 20±2℃) until the starting liquid can no longer be sprayed out; b. Record the volume of discharged water;
Weigh the empty core, and calculate the weight of the discharged starting liquid and the emptying rate (%), which shall comply with the provisions of 3.3.1 of JB/T7763.1. 3.2.4 The pressure loss of the spray cans leaving the factory shall be observed and measured within one month and one year, and the value shall meet the requirements of 3.2.5 of JB/T7763.1.
3.3 Filling device
3.3.1 Functional testbzxZ.net
a. Place the filling device in a cold box at -45±2°C for 24 hours; b. Perform a spray cycle of spraying for 5 seconds and stopping for 5 seconds until the starting liquid cannot be sprayed out; c. Weigh the filling device and calculate the weight of the sprayed starting liquid, which should meet the requirements of Article 3.3.1 of JB/T7763.1. 3.3.2 Spray uniformity test
For each grade of nozzle, spray it into a closed measuring cylinder according to the operating method and calibrated spray volume specified by the manufacturer, spray 10 times, and read the spray volume each time. The error should meet the requirements of Articles 3.3.3 and 3.3.4 of JB/T7763.1. 3.3.3 Durability test
Put the filling device in a cold box at 50±2℃ for 4 hours and cool it thoroughly; a.
b. Carry out 1000 cycles test according to the use requirements. 3.3.4 Safety device test
a. Check the reliability of the operation of the temperature or pressure controller (sensor) within the error range of the required maximum and minimum temperatures ±2°C and pressure ±300Pa. b. Check the tightness when the oil circuit is cut off and the fluidity when it is opened. 3.4 For any gasket, O-ring, casting and non-metallic material used on the spray or filling device, a stability test should be carried out in the starting fluid according to the following method.
Place the parts in a 100mL wide-mouthed glass bottle and immerse it in the starting fluid. Cover the cup and place it in a ventilated place at 23±1°C for 8.
14 days:
Remove the air from the acetaldehyde for 1 hour;
Replace the parts back into the spray can or filler for a durability test. Additional Notes:
JB/T7763.295
This standard was proposed and managed by Tianjin Internal Combustion Engine Research Institute, and drafted by Tianjin Internal Combustion Engine Research Institute, General Logistics Department Oil Research Institute, and Liuzhou Organic Fine Chemical Factory. The main drafters of this standard are Zhao Zhenlun, Gu Tianxing, and Lu Chusheng.
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