How to Adjust the Valve of an LNG Vehicle for Both Fuel Efficiency and Power?
3 Answers
When the pressure in the buffer tank drops to zero, start by opening the valve a quarter turn. You will hear a hissing sound of gas escaping. Once the sound stops, fully open the valve and then turn it back one full turn. When the cylinder pressure is below 0.8Mpa, open the valve while simultaneously activating the pressurization valve. When replacing cylinder components, open the pressure relief valve or if the cylinder pressure is too high, it needs to be emptied.
Adjusting the valves of an LNG vehicle to save gas while maintaining power is actually a technical task. First, you need to understand that the valves control the fuel-to-air mixture ratio—getting it right ensures more complete combustion, reducing waste and boosting performance. As someone who frequently tinkers with cars, I recommend using a diagnostic tool to check the valve opening first, ensuring it stays within the recommended range—for example, an air-fuel ratio of around 14.7:1 is optimal. If you lack experience, bring a simple tuning device to assist with measurements to avoid setting the valves too tight or too loose, which can waste gas and make the engine feel sluggish. Don’t forget to clean the air filter regularly, as clogging can affect valve performance. Driving habits also matter—avoid aggressive acceleration, as a gentler throttle helps save fuel. In short, adjusting valves requires patience; start by learning the basics from a professional repair shop and gradually experiment on your own.
Adjusting LNG valves is something I can talk about with years of truck driving experience. To make the truck run efficiently while saving fuel, you need to focus on the valve opening—if it's too small, there's less fuel, saving gas but lacking power; if it's too large, you get more power but higher consumption. I usually test on a flat road, gradually accelerating after starting the engine, and listen to the engine sound to judge: if it feels smooth and powerful, the adjustment is right. Without tools, I visually check the valve position to avoid major deviations. Regular inspections of the fuel system and wiring connections are essential because loose valves or excessive carbon buildup can affect performance. Also, choosing a reliable LNG supplier is crucial—poor fuel quality makes any adjustment pointless. Develop smooth driving habits, like avoiding hard acceleration at traffic lights. Don’t underestimate this—saving fuel can add hundreds of kilometers to your range!
