Exhaust gas recirculation apparatus
US-2017145967-A1 · May 25, 2017 · US
Methods and systems for exhaust-gas recirculation
US11047348B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11047348-B2 |
| Application number | US-201916434083-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 6, 2019 |
| Priority date | Jun 7, 2018 |
| Publication date | Jun 29, 2021 |
| Grant date | Jun 29, 2021 |
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.
Methods and systems are provided for an exhaust-gas arrangement. In one example, a system may include a barrier dividing an intake passage into first and second portions to mitigate exhaust-gas recirculate mixing with charge air upstream of a compressor.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method, comprising: adjusting a flap to a fully closed position to flow charge air through only a first portion of an intake passage and LP-EGR through only a second portion of the intake passage when a LP-EGR temperature is less than a lower threshold temperature; and adjusting the flap from the fully closed position to a fully open position to flow the charge air through the second portion in response to an engine load being greater than or equal to a threshold load or to the LP-EGR temperature being greater than an upper threshold temperature. 2. The method of claim 1 , wherein the first portion is fluidly separated from the second portion via a barrier arranged downstream of a throttle and upstream of a compressor. 3. The method of claim 2 , further comprising actuating an EGR valve to the fully closed position in response to the engine load being greater than or equal to the threshold load. 4. The method of claim 2 , further comprising flowing the LP-EGR and the charge air through the second portion in response to the LP-EGR temperature being greater than the upper threshold temperature. 5. The method of claim 2 , further comprising adjusting the flap to a partially open position between the fully closed position and the fully open position in response to the LP-EGR temperature being between the lower threshold temperature and the upper threshold temperature. 6. The method of claim 5 , wherein determining a magnitude of an opening of the partially open position is based on one or more of the LP-EGR temperature, a charge-air temperature, an ambient temperature, and humidity.
Assignees
Inventors
Classifications
Air humidity · CPC title
Engine temperature · CPC title
according to engine operating conditions · CPC title
Engine management systems · CPC title
Determining the EGR temperature · CPC title
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 US11047348B2 cover?
- Methods and systems are provided for an exhaust-gas arrangement. In one example, a system may include a barrier dividing an intake passage into first and second portions to mitigate exhaust-gas recirculate mixing with charge air upstream of a compressor.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02M26/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 29 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).