Abstract
Keywords- Desert, Heavy Duty Truck, Air Filter, Air Prefilter, Cyclone Pipe
After researching operation condition of desert, authors propose that the air prefilter should be optimized first of all, if you want to resolve the most difficult problem of the early wear of truck engine.
After researching and contrasting the relative merits of different air prefilters, the most suitable prefilter is made up of axial-flow cyclone pipes. The cyclone pipe with large flow is one of the main research subjects. Via optimum design to each parameter of cyclone pipe and utilizing 7 cyclone pipes as a unit of test research, the selected cyclone pipe with different parameters has been tested, in order to obtain the cyclone pipe which is with large flow and low resistance and with prefilter efficiency tallying with demands. It is for the purpose of combining the prefilter with the least cyclone pipes to decrease the volume of desert filter, so that can lay out it in heavy duty truck rationally.
The automatic dust exhausting installation of the prefilter is one of the necessary requirement of desert air filter. Authors have been developed two desert air filters with different structure, those can be respectively utilized in the diesel which the automatic dust exhausting can or can't be executed by diesel exhaust scavenged.