Charge air cooler water protection
US-2015369119-A1 · Dec 24, 2015 · US
Cleaning of a charge-air cooler in a system with exhaust gas recirculation arrangement
US9945331B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9945331-B2 |
| Application number | US-201615018108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2016 |
| Priority date | Feb 26, 2015 |
| Publication date | Apr 17, 2018 |
| Grant date | Apr 17, 2018 |
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 cleaning a water-cooled charge-air cooler. In one example, a method may include condensing water present in the supplied charge-air and exhaust gas which may exist in gaseous and droplet form, and purging the condensate along with the exhaust gas. A system for carrying out the above mentioned method is also provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for cleaning a water-cooled charge-air cooler for an internal combustion engine by transporting or discharging condensate, the engine comprising an exhaust-gas recirculation arrangement, wherein a cooler device connected via a coolant circuit to the charge-air cooler imparts a cooling effect through enhanced cooling of the charge-air cooler, wherein the enhanced cooling of the charge-air cooler is performed with deactivation of the exhaust-gas recirculation arrangement. 2. The method of claim 1 , wherein the cooling effect is imparted over a period of time until a predetermined amount of water in gaseous and/or droplet form in the charge-air cooler has turned into a condensate based on an output of a liquid sensor arranged in a lower lying region of the charge-air cooler, and wherein the predetermined amount of water is a level of condensate sufficient to perform cleaning of the charge-air cooler. 3. The method of claim 1 , wherein enhanced cooling of the charge-air cooler is performed in the presence of low ambient temperatures. 4. The method of claim 1 , wherein the enhanced cooling of the charge-air cooler is performed at high vehicle speeds. 5. The method of claim 1 , wherein the enhanced cooling of the charge-air cooler is performed when a certain operation duration of the internal combustion engine has been reached. 6. The method of claim 1 , wherein the enhanced cooling of the charge-air cooler is performed when a certain pH value within the charge-air cooler has been reached. 7. The method of claim 2 , wherein the condensate is transported via an intake connector from the charge-air cooler to at least one cylinder of the internal combustion engine. 8. The method of claim 2 , wherein the condensate is discharged from the charge-air cooler via a drain device arranged at a low-lying point in the charge-air cooler. 9. A method for cleaning a water-cooled charge-air cooler for an internal combustion engine, the engine comprising an exhaust-gas recirculation arrangement, wherein a cooler device connected via a coolant circuit to the charge-air cooler imparts a cooling effect through enhanced cooling of the charge-air cooler, wherein the enhanced cooling of the charge-air cooler is performed when a certain pH value within the charge-air cooler has been reached.
Assignees
Inventors
Classifications
Controlling exhaust gas recirculation [EGR] (temperature control with cooler in recirculation circuit F02M26/33) · CPC title
Liquid cooled heat exchangers · CPC title
Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor · CPC title
- F02B29/04Primary
Cooling of air intake supply · CPC title
Control arrangements · 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 US9945331B2 cover?
- Methods and systems are provided for cleaning a water-cooled charge-air cooler. In one example, a method may include condensing water present in the supplied charge-air and exhaust gas which may exist in gaseous and droplet form, and purging the condensate along with the exhaust gas. A system for carrying out the above mentioned method is also provided.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02B29/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 17 2018 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).