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US-2024344476-A1 · Oct 17, 2024 · US
Exhaust purification device for internal combustion engine
US9528409B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9528409-B2 |
| Application number | US-201414763696-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2014 |
| Priority date | Jan 28, 2013 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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An exhaust gas purification device for an internal combustion engine, wherein an amount of fuel supply during a forced regeneration is optimized, and a fuel efficiency is effectively improved. The device includes a filter in an exhaust passage of the internal combustion engine for collecting particulate matter in an exhaust gas, an electrostatic capacity detecting unit that detects an electrostatic capacity of the filter, and a filter regenerating unit that supplies fuel to the filter and executes a forced regeneration to burn and remove the particulate matter in the filter. The filter regenerating unit stops supplying fuel when a rate of decrease in the detected electrostatic capacity per predetermined period of time reaches or falls below a predetermined lower threshold, which indicates a drop in burning efficiency of the particulate matter, while the forced regeneration is being executed.
First claim
Opening claim text (preview).
What is claimed is: 1. An exhaust gas purification device for an internal combustion engine, comprising: a first filter that is provided in an exhaust passage of the internal combustion engine and configured to collect particulate matter included in an exhaust gas; an electrostatic capacity detector configured to detect an electrostatic capacity of the first filter; and a processor configured to control supply of an amount of fuel to the first filter to perform a forced regen…
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Mechanical Engineering · mapped topic
- F01N13/008Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9528409B2 cover?
- An exhaust gas purification device for an internal combustion engine, wherein an amount of fuel supply during a forced regeneration is optimized, and a fuel efficiency is effectively improved. The device includes a filter in an exhaust passage of the internal combustion engine for collecting particulate matter in an exhaust gas, an electrostatic capacity detecting unit that detects an electrost…
- Who is the assignee on this patent?
- Isuzu Motors Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N13/008. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 27 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).