Diesel particulate filtration (DPF) system
AssigneeSouth Bank University Enterprises Ltd.
InventorsHari Upadhyaya, Ali Salimian, Arjang Aminishahsavarani
Life of this patent
Estimating the term…
Abstract
A Diesel Particulate Filter (DPF) assembly configured to be incorporated in the exhaust gas stream, the DPF assembly comprising: Quartz/Composite ceramic mixture disposed as filter elements, mechanical support components and optional electrical soot removal solutions including electrical, di-electrical and microwave solutions.
Claims18
A Diesel Particulate Filter (DPF) assembly configured to be incorporated into an exhaust gas stream of a diesel engine, said DPF assembly comprising:
- one or more pneumatically porous ceramic filter panels;
- support mechanical components attached to said one or more panels so as to form a filter core;
- and
- a DPF assembly comprised of one or more housing mechanical components that create one or more upstream cavities and a downstream cavity pneumatically connected by said one or more porous ceramic filter panels, wherein:
- one or more of said filter panels are formed from a filter mix;
- said filter mix is comprised of the following percentage (by weight) ranges, which total 100%:
- 55% to 65% mineral fibers comprised of one or more of:
- Quartz,
- or Alumina, and
- 35% to 45% composite powder comprised of the following percentage (by weight) ranges, which total 100%:
- 70% to 80% Silicon Oxide (SiO2),
- 4% to 6% Aluminum Oxide (Al2O3),
- 14% to 18% Diboron Trioxide (B2O3), and
- 2% to 4% Sodium Super Oxide (NaO2).
A method for creating filter panels for a Diesel Particulate Filter (DPF) assembly, said method comprising:
- crushing mineral fibers;
- creating a composite powder comprised of Silicon Oxide (SiO2), Aluminum Oxide (Al2O3), Diboron Trioxide (B2O3) and Sodium Super Oxide (NaO2);
- creating a filter mix by mixing said mineral fibers with said composite powder;
- placing said filter mix in a mold and sintering said filter mix for at least 30 minutes at a temperature of at least 1200° C.;
- gradually lowering the filter mix temperature to 700° C. during at least 10 minutes;
- and
- allowing the molded filter mix to cool to ambient temperature.
Dependencies are inferred from the claim text.