Honeycomb ceramic substrates, honeycomb extrusion dies, and methods of making honeycomb ceramic substrates
US9808794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2013 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N3/2828
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A honeycomb ceramic substrate, a method of making thereof, and a honeycomb extrusion die configured to extrude a honeycomb ceramic substrate from a batch of ceramic or ceramic-forming material is provided. The substrate may include a lattice of intersecting walls defining a honeycomb network of flow channels extending between an inlet end and an outlet end of the honeycomb substrate. Each flow channel may be defined by a plurality of channel walls of the intersecting walls with at least two of the plurality of channel walls including concave inner surfaces facing a center of the corresponding flow channel from central portions of the concave inner surfaces to concave corner portions facing the center of the corresponding flow channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.