LONG LIFE ENGINE AIR CLEANER TECHNOLOGY FOR AUTOMOTIVEPASSENGER CARS, SUVs AND LIGHT TRUCKS

摘要

A new Patented Long Life Filter (LLF) technology has been developed for automotive passenger cars,rnSUVs and light trucks. The LLF technology provides a unique approach and advantages over the traditionalrnserviceable engine air filters. The LLF technology has been designed and developed to exceed 100K milesrnor beyond service life under normal driving conditions. This new technology will be in production on a midrnsized passenger car application in spring of 2003.rnThe new LLF technology is a fully sealed air cleaner assembly designed to remove contaminants fromrnengine intake air, provides engine noise control, negligible power loss and provides accurate metering ofrnclean airflow into the engine. The air cleaner utilizes a multi-layered reticulated foam media to trap andrnremove contaminants. This paper discusses the performance of the LLF system and the production design.rnPerformance and durability data on the new LLF system will be reviewed including field evaluation datarnthat supports the LLF development.rnThis new LLF technology also supports and compliments the new PZEV [partial zero emission vehicle]rnunder-hood evaporative emission control, developed for the same vehicle. The new PZEV standard is beingrndictated by the CARB board and will be required for all green states by 2006. A separate technical paper byrnLeffel J., et al. 'Development of Evaporative Emissions Filters for Automotive Applications', covers detailsrnon the PZEV development. This technical paper is an introduction to a new generation of LLF engine airrncleaner designs.