MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202414006863 A) filed by Ngk Insulators, Ltd. on February 01, 2024, for Honeycomb Filter.
Inventor includes Sachiko Masuda.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: Provided is a honeycomb filter capable of improving filtration efficiency and suppressing an increase in pressure loss when a catalyst for purifying exhaust gas is loaded. The honeycomb filter includes a pillar-shaped honeycomb structure 4 having a porous partition wall 1 disposed to surround a plurality of cells 2 and a plugging portion 5 provided at either one end on the cell 2, wherein the partition wall 1 is composed of a material containing cordierite as a main component, a porosity of the partition wall is 60 to 70%, a ratio (S2/S1×100%) of the total S2 of the opening area of pores which exist within a unit surface area S1 of the partition wall 1 and which have an equivalent circle diameter exceeding 3µm is 58 to 70%, and a ratio (R/D) of an average equivalent circle opening diameter R (um) of pores which exist at a surface of the partition wall 1 and which have an equivalent circle diameter exceeding 3µm with respect to an average pore diameter D (um) of the partition wall 1 is 0.3 to 0.8.
Disclaimer: Curated by HT Syndication.
