Capless refueling system cleaning using engine vacuum
US-9217402-B2 · Dec 22, 2015 · US
Method and system for controlling engine vacuum production
US8960153B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8960153-B2 |
| Application number | US-201113104153-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 10, 2011 |
| Priority date | May 10, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A method for controlling engine vacuum production is disclosed. In one example, one or more air sources to an engine intake manifold are closed so as to increase an amount of air drawn from another air source. The method may increase a rate of vacuum supplied to a vacuum actuated device so as to improve operation of the vacuum actuated device.
First claim
Opening claim text (preview).
The invention claimed is: 1. An engine operating method, comprising: closing air sources, including a throttle, to an engine intake manifold in a predetermined order in response to a vacuum level; evacuating air from an air source supplying air to the engine intake manifold that is not closed; and opening at least one of the closed air sources in a predetermined order in response to engine combustion stability degrading below a threshold level, including opening the throttle b…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F02M35/10229Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8960153B2 cover?
- A method for controlling engine vacuum production is disclosed. In one example, one or more air sources to an engine intake manifold are closed so as to increase an amount of air drawn from another air source. The method may increase a rate of vacuum supplied to a vacuum actuated device so as to improve operation of the vacuum actuated device.
- Who is the assignee on this patent?
- Cunningham Ralph Wayne, Pursifull Ross Dykstra, Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02M35/10229. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 24 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).