Method and system for vacuum generation using a throttle body comprising a slidable throttle valve
US-2017138277-A1 · May 18, 2017 · US
Method and system for an aspirator for a brake booster
US9981644B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9981644-B2 |
| Application number | US-201715697011-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2017 |
| Priority date | Nov 13, 2015 |
| Publication date | May 29, 2018 |
| Grant date | May 29, 2018 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: generating vacuum via motive flow in an aspirator system when at least one cooling fan is activated, wherein the aspirator system receives motive flow during vehicle stops from the at least one cooling fan; providing vacuum from the aspirator system to a brake booster in response to a check valve being open; and mixing suck flow from the brake booster with motive flow in the aspirator system and flowing the mixture directly out a rear grill without flowing the mixture through any other components. 2. The method of claim 1 , wherein the cooling fan is activated in response to a vehicle speed being less than a threshold speed and the cooling fan is activated in response to a coolant temperature being greater than a threshold temperature. 3. The method of claim 2 , further comprising disabling a first fan and maintaining a second fan active in response to the coolant temperature decreasing below the threshold temperature. 4. The method of claim 1 , wherein generating vacuum includes flowing motive flow through a venturi passage, a spiral shaped passage, and an annular passage of the aspirator system.
Assignees
Inventors
Classifications
- B60T13/52Primary
indirect, i.e. vacuum booster units · CPC title
Arrangements for cooling other engine or machine parts · CPC title
Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers · CPC title
- B60T13/46Primary
Vacuum systems · CPC title
in vacuum systems {or vacuum booster units} · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9981644B2 cover?
- Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification B60T13/52. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 29 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).