Exhaust purifying device
US9708955B2 · kind B2 · utility
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16Claims
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Assignee
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Key dates
| Filing date | Nov 25, 2015 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Nov 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust purifying device includes a throttle valve, a DOC device, an SCR device, a fuel injector, an inlet temperature sensor, an outlet temperature sensor, and a controller. The controller includes a heatup-control execution control unit configured to perform a regeneration treatment for removing a urea deposit when a predetermined heatup control execution condition is met, and a condition judgment unit configured to judge whether or not the first condition is met during the regeneration treatment by the heatup control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.