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First, inflating
1. Drive the car to the inflator, turn off the engine, turn off all electrical equipment, and disconnect the main power switch.
2. Open the CNG cylinder and the high pressure shut-off valve, slowly inflate about 5 MPa (note that people should not stand at the front of the valve and joint), then close the cylinder valve.
Second, the pipeline leak check
1. Loosen the pressure reducer connector, open the cylinder valve, blow the high pressure pipeline, remove the foreign matter, connect the joint, and open the bottle valve switch.
2. Check all high-pressure joints by means of mold, hearing and use of leak detection fluid, and promptly eliminate leakage.
3. In the absence of leakage, continue to inflate to a working pressure of 20 MPa and drive the vehicle away from the inflating station.
4. Check all high and low pressure joints, pipelines and pressure reducer assemblies with leak detection fluid. The mixer has leaks and leaks are eliminated in time.
5. Jinan automobile oil-to-gas fuel conversion commissioning: First start the engine with gasoline, then pull the fuel transfer switch to the middle position, cut off the two fuel supplies, keep the engine at about 2000r/min, until the remaining gasoline in the carburetor will When it is used up, the machine starts to shake and immediately pulls the fuel switch to the natural gas position. If the conversion is no problem, it will be converted into natural gas.
Sixth, ignition timing debugging
1. Run the engine with natural gas, adjust the position of the distribution board, and make the ignition timing reach the best after fixing the distribution board.
2. Run the engine with gasoline, adjust the adjustment knob on the ignition timing converter, so that the ignition timing of the gasoline is optimal (clockwise adjustment of the ignition timing is advanced, counterclockwise adjustment of the ignition timing delay).
Seven, idle speed and start debugging
1. Run the engine with gasoline and adjust the idle speed of the gasoline according to the original gasoline adjustment method.
2. Run the engine with natural gas and adjust the idle adjustment screw on the pressure reducer until a stable minimum idle idle speed is obtained. The method is as follows: firstly screw the pressure reducer idle speed adjusting screw, and then loosen back 1.5 turns. If not ideal, it can be fine-tuned with the carburetor adjustment screw.
3. Start the natural gas directly after the flameout, to see if the natural gas startup is easy and rapid. If the startup is poor, it should be re-adjusted.
Eighth, Jinan automobile oil to gas http:// natural gas acceleration performance debugging: Using the automobile engine fault comprehensive tester, running the engine with natural gas, idling the engine in place, and then repeatedly blasting the throttle quickly to see if the engine speed changes rapidly. Sleek, the tester indicates whether the acceleration time is within the specified time at the maximum speed. If the speed is not reached and the acceleration time is long, adjust the adjustment knob on the pressure reducer until it is satisfactory.
9. Air-fuel ratio adjustment of natural gas and air
1. Using the automobile engine fault comprehensive tester, the engine is adjusted at the maximum speed, and the power valve adjusting screw is adjusted. When the air supply amount is the least, the engine speed is stable and does not change, which is the optimal air-fuel ratio. Then use the engine exhaust gas analyzer to test the engine exhaust, adjust the power valve adjustment screw, so that the CO value is 1.0 ~ 1.5%, fixed power valve adjustment screw. Then review the idle start and acceleration again and repeat the adjustment until the best condition.
2. During vehicle operation, the power valve can be directly adjusted according to experience to correct the air-fuel ratio of the engine.
3. Through the above commissioning, the natural gas power is not less than 85% of the original car, and the CO content of natural gas does not exceed 1.5%, that is, the conversion performance is qualified. If it fails, the mixer parameters should be changed, and the adjustment and performance tests should be repeated until the performance is qualified.
Jinan Tianshili Gas Conversion Co., Ltd. is one of the few R&D manufacturers of gas vehicle electric control systems in China. It independently develops and produces Tasly A6, D06, AC200, AC300+ series multi-point direct injection electronic control system with precise jet, remarkable energy saving and easy installation. , strong matching. The company's main gas, liquefied gas car modification kits, factory direct gas cylinders, for customers to purchase CNG modified testing equipment, charge gas vehicle modification qualifications, provide consulting services. Jinan Natural Gas Vehicle Refiting Factory has the qualification of national first-class vehicle pressure vessel installation and provides technical training for customers.
Jinan Automobile Oil-to-Gas Dual-Use Fuel Vehicle Commissioning Technical Regulations