At present, China's natural gas vehicles are developing rapidly, but they are still in a low-level expansion stage. Jiaxing Lineng Autogas Equipment Co., Ltd., as a professional CNG LPG ECU manufacturer, conducts the following analysis.
A large number of small and medium-sized natural gas vehicles in China are modified gasoline vehicles-dual-fuel vehicles, that is, partial modifications to original gasoline vehicles, without changing the engine, only adding a natural gas storage system, an ignition device and a two-fuel switching device.
Since no targeted technical measures have been taken and the fuel has been changed, this kind of vehicle emissions is unstable. When using natural gas, the power performance will be reduced by 10% to 15%, and fuel consumption will increase by about 5%.
The combustion temperature of natural gas engines is higher than that of gasoline and diesel engines with the same emission, which easily causes nitrogen oxidation in the cylinder. If special combustion treatment technologies and devices are not used, a certain amount of nitrogen oxides will inevitably be emitted in the exhaust gas. With the increasingly stringent vehicle exhaust emission standards, the control of nitrogen oxide emissions has become an important task for the technical transformation of natural gas vehicles.
In fact, China has successfully developed a three-way catalytic device dedicated to natural gas vehicles, which has achieved results in improving emissions. Some automobile OEMs have also made changes to the new dual-fuel automobile engines, with improvements in performance and emissions. As long as targeted measures are taken, natural gas vehicles can meet the national VI emission requirements.
To learn more about CNG Injection Kits, please continue to pay attention to Jiaxing Lineng Autogas Equipment Co., Ltd.