FILTER ELEMENT

PURPOSE:To extend the life of a filter element and to reduce the pressure loss thereof by mounting a cylindrical filter material and the cylindrical reinforcing body having openings in its diameter direction arranged concentrically within the filter material and providing the many narrow ridges or small projections supporting the filter material to the reinforcing body. CONSTITUTION:A filter element is equipped with a cylindrical filter material 1 and the cylindrical reinforcing body 2 arranged almost concentrically within the filter material 1 and the filter material 1 is formed from a sintered body of a metal or synthetic resin powder. The reinforcing body 2 has a large number of openings 4,... having taper surfaces 4a and narrow ridges 5 crossing at a right angle each other provided to the wall surface thereof toward the center and integrally formed from a synthetic resin such as polyacetal. When the reinforcing body 2 is fitted in the filter material 1, the ridges 5,... come into contact with the filter material not only to support the filter material 1 but also to form flow gaps 6,... The fluid such as compressed air from which dust is filtered by the filter material 1 passes through the openings 4,... to flow in the reinforcing body 2 to be taken out of the filter element by an appropriate means.