As a vehicle fuel, LNG (liquefied natural gas) has the advantages of high octane number, good blast resistance, low engine loss, low fuel cost and good environmental performance as compared with conventional fuel fuels. Therefore, in foreign countries, the research, development and application of LNG commercial vehicles have long been promoted vigorously.

More used in the field of commercial vehicles

In the United States and Germany, for example, the promotion of LNG vehicles has been going on for many years. It is understood that LNG vehicles are currently operating mainly commercial vehicles, such as urban buses, urban construction vehicles, sanitation vehicles, logistics and transport companies. This is primarily because of the heavy volume of commercial vehicles and their high utilization rates, as well as their cheaper natural gas prices relative to fuel. Second, LNG vehicles have less emissions. LNG vehicles are less polluting than large amounts of particulate matter and noise pollution from diesel engines.

In the United States, the most LNG vehicles currently used are logistics vehicles. In the promotion of the use of medium and short haul trucks, the LNG vehicles are mainly installed on both sides of the frame with single gas cylinders, and can select the ignition type of combustion , You can also choose HPDI hybrid compression ignition (with diesel engine similar). For example, the majority of UPS vehicles used by UPS Logistics Group are of HPDI type. The type of diesel fuel used as pre-combustion and ignition of natural gas is gradually recognized by developed countries. As early as 2011, UPS purchased 48 vehicles LNG truck and put it into a company in Lake Ontario, California. Meanwhile, the New York City Department of Transportation also operates a natural gas bus. And telecom companies Verizon Communications Inc. and AT & T Inc. are also using gas-powered trucks.