Diesel engine exhaust gas purification method and exhaust gas purification system
US-9222394-B2 · Dec 29, 2015 · US
Control apparatus for engine
US9115657B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9115657-B2 |
| Application number | US-201313933651-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2013 |
| Priority date | Jul 17, 2012 |
| Publication date | Aug 25, 2015 |
| Grant date | Aug 25, 2015 |
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.
An engine includes an injector, an ignition plug, a supercharger, an electronic throttle device, and an EGR apparatus. An EGR passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to the intake passage upstream from a compressor. A fresh-air introduction passage is arranged to introduce fresh air to a surge tank downstream from the electronic throttle device and a fresh-air control valve is provided to regulate a fresh air amount. When an ECU determines that the engine is under deceleration and under fuel supply, the ECU closes the electronic throttle device to a predetermined opening degree to scavenge EGR gas flowing from the EGR passage and remaining in the intake passage, opens a fresh-air control valve to a predetermined opening degree, and causes the ignition plug to retard an ignition timing.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control apparatus for an engine, including: a supercharger placed between an intake passage and an exhaust passage of an engine and configured to increase pressure of intake air in the intake passage, the supercharger including: a compressor placed in the intake passage; a turbine placed in the exhaust passage, and a rotary shaft connecting the compressor and the turbine so that they are integrally rotatable; an intake-air amount regulating valve…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9115657B2 cover?
- An engine includes an injector, an ignition plug, a supercharger, an electronic throttle device, and an EGR apparatus. An EGR passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to the intake passage upstream from a compressor. A fresh-air introduction passage is arranged to introduce fresh air to a surge tank downstream from the electronic throt…
- Who is the assignee on this patent?
- Aisan Ind
- What technology area does this patent fall under?
- Primary CPC classification F02D41/0005. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 25 2015 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).