Exhaust particulate filter for diesel engine

摘要

An exhaust particulate filter for a diesel engine which is high in the collecting efficiency of exhaust particulates and small in the pressure loss, by using a felt-like body having pores of an optimum inner diameter between heat resistant inorganic lengthy fibers. Wire nets (31) formed of heat resistant metal are put upon both upper and lower surfaces of a felt-like body (32), which are arrested from both the surfaces thereof by heat resistant yarn (33), said felt-like body (32) being configured such that heat resistant inorganic lengthy fibers cut into a predetermined length are irregularly oriented in a horizontal direction and laminated to which needles are applied and said inorganic lengthy fibers are vertically entangled.