Research And Development Of Automotive Liquid Cng Heater

With the stricter regulations of environment protection and the reserves of global petroleum resource gradually decreasing, all countries are launching the research and development of new energy sources, in order to release air pollution and relying on petroleum resource. One of available approach to solve above problems is to develop Nature Gas Vehicle (NGV). In our country, "National Clean Fuel Vehicle Leading Subcommittee" is founded for largely spreading Nature Gas Vehicles. Planned by 2005, the number of Nature Gas Vehicle will go up to 500,000 in our country.Vehicle oil heater is one of the main equipments for heating bus in winter. All homemade oil heaters bum diesel oil or coal oil since arising. With the number of Nature Gas Vehicle increasing in our country, it is necessary to develop clean fuel heater for matching. Heater burning natural gas not only match with Nature Gas Vehicle, but also solved the oil heater's shortcoming which seriously polluted the environment, and adding the types of vehicle heater to meet the need of the development of vehicle technology.The subject in this study is the YJ-Q27.9/2X type vehicle oil heater made by Peking Vehicle Equipment Company, and performing the methods of theory and testing, and Realizing the function of burning Nature Gas on the basis of the least modification of the oil heater's configuration. Characters including: fuel atomization device replaced by gas sprayer, gas supply controlled by gas flux valve; separate fuel supply from combustion-supporting air, regulate air supply through changing the electioneering voltage to make the fully burning and improve efficiency and reduce fuel consume; arts and crafts are simple, the modification of the oil heater's configuration is little and the heating power is not below the oil heater's level; because of falling the voltage of electioneering, greatly descend the noise of the sample machine compared with the original. The testing result of the sample machine proved that design scheme and the control scheme in this study is reasonable and safe, if made products and popularized, it will greatly improve the environment protection performance and economic performance security and reliability of sample machine, so can improve the technical level of homemade bus.Through this study, it was basically solved the theory and technology problems of modification oil heater to Nature Gas heater and It will provide with the important referenced value for updating products of manufactory.