Method and system for vacuum generation using a throttle comprising a hollow passage
AssigneeFord Global Technologies, LLC
InventorXiaogang Zhang
Life of this patent
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Abstract
Various systems and methods are described for generating vacuum within an engine intake. A system may comprise an intake throttle including a throttle plate, where the throttle plate may comprise a hollow interior passage, which in turn may be coupled to a vacuum consumption device. When vacuum is demanded by the vacuum consumption device, the throttle plate may be adjusted to increase airflow through the interior passage and vacuum may be generated at a constricted portion of the interior passage by flowing intake air through the interior passage of the throttle plate.
Claims9
A method for an engine, comprising:
- connecting a vacuum consumption device via a hollow shaft to a throttle plate positioned in an engine intake passage, the throttle plate having a hollow interior passage;
- and
- decreasing an opening of the throttle plate in response to the vacuum consumption device requesting vacuum to increase vacuum production at a constricted portion of the hollow interior passage.
A method for an engine comprising:
- adjusting a position of a throttle plate within an interior passage to generate a vacuum within the throttle plate positioned inside an intake of the engine, a gas from outside the engine drawn through the interior passage via vacuum and into intake airflow flowing through the interior passage.
Dependencies are inferred from the claim text.