Exhaust treatment method and apparatus having particulate filters and scr
US-2024159174-A1 · May 16, 2024 · US
Honeycomb structure
US9346003B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9346003-B2 |
| Application number | US-201213611435-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2012 |
| Priority date | Sep 15, 2011 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
There is provided a honeycomb structure 100 comprising partition walls 1 separating and forming a plurality of cells 2 functioning as fluid passages. The partition walls 1 are made of cordierite, and, when an average pore size of the partition walls 1 is x (μm) while a porosity of the partition walls 1 is y (%), a relation of x and y is y≦−8.33x+86.66 and satisfies 0.5≦x≦5 and 35≦y≦70. The honeycomb structure 100 can improve thermal shock resistance without sacrificing any of light-off performance, catalyst coatability, and strength.
First claim
Opening claim text (preview).
What is claimed is: 1. A honeycomb structure comprising partition walls separating and forming a plurality of cells functioning as fluid passages, wherein the partition walls are made of cordierite and are formed to have a thickness of 0.064 to 0.165 mm, and, when an average pore size of the partition walls is x (μm) while a porosity of the partition walls is y (%), a relation of x and y is y≦−8.33x+86.66 and satisfies 45≦y≦70 and 0.5≦x≦1.9. 2. The honeycomb structure according to claim 1 , wherein the thermal shock resistance temperature is 650° C. or more. 3. The honeycomb structure according to claim 2 , wherein A-axis compressive strength is 5.0 MPa or more. 4. The honeycomb structure according to claim 2 , wherein the A-axis compressive strength is 7.0 MPa or more. 5. The honeycomb structure according to claim 1 , wherein A-axis compressive strength is 5.0 MPa or more. 6. The honeycomb structure according to claim 1 , wherein the A-axis compressive strength is 7.0 MPa or more. 7. The honeycomb structure according to claim 1 , wherein the cells functioning as fluid passages are open on the inlet and outlet sides of the honeycomb structure. 8. The honeycomb structure according to claim 1 , wherein the porosity of the partition walls satisfies 47.1≦y≦70.
Assignees
Inventors
Classifications
Honeycomb-like · CPC title
Ceramic, e.g. monoliths · CPC title
Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing · CPC title
of the outer peripheral sealing · CPC title
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9346003B2 cover?
- There is provided a honeycomb structure 100 comprising partition walls 1 separating and forming a plurality of cells 2 functioning as fluid passages. The partition walls 1 are made of cordierite, and, when an average pore size of the partition walls 1 is x (μm) while a porosity of the partition walls 1 is y (%), a relation of x and y is y≦−8.33x+86.66 and satisfies 0.5≦x≦5 and 35≦y≦…
- Who is the assignee on this patent?
- Suenobu Hiroyuki, Sendo Koichi, Nakatani Takahiko, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B01D46/2425. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).