Corrugated Filter Media with Modulated Corrugations

摘要

A filter media in which larger corrugations are impressed or embossed onto media that has been previously corrugated with standard corrugations. This construction greatly increases the beam strength of a resulting pleat that allows the channels to remain open during processing into the pleated media, and prevents buckling of the media during gathering on current pleating equipment. In addition, once the media is pleated, the larger corrugations or embossments, combined with the standard corrugations, create large channels for fluid flow from pleat tip to the base of the pleat.

主权项

1. A filter media comprising:
a plurality of first corrugations extending in a first direction and having a first amplitude and a first frequency; a plurality of second corrugations extending in the first direction and having a second amplitude and a second frequency, the second amplitude greater than the first amplitude, and the second frequency is less than the first frequency, the second corrugations are superimposed on the first corrugations.