Particulate matter (PM) sensor for detecting quantity of PM in exhaust gas from e.g. diesel engine
US10865675B2 · kind B2 · utility
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Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Sep 23, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This particulate matter (PM) sensor is provided with a porous body that has a partition disposed in a passage for exhaust gas including particulate matter, at least a pair of electrodes that oppose each other in a prescribed direction so as to sandwich the porous body, and a deposition part that includes the surface of the partition on the upstream side of the passage, has the particulate matter deposited thereon, and has, formed therein, pores having an average pore diameter smaller than the average pore diameter of the portion of the partition other than the deposition part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.