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US 2019/0186446 A1Published application
Methods and systems for vacuum generation using a throttle
AssigneeFord Global Technologies, LLC
InventorsXiaogang Zhang, Jianwen James Yi, Brad VanDerWege
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for generating vacuum via a throttle. In one example, a method may comprise rotating the throttle to a first fully closed position to provide vacuum to a first vacuum consumption device and rotating the throttle to a second fully closed position to provide vacuum to a second vacuum consumption device. The method may further include rotating the throttle to a partially closed position to provide vacuum to both the first and second vacuum consumption devices.
Claims20
A method comprising:
- adjusting a throttle valve to a first fully closed position in response to vacuum of a first vacuum consumption device being less than a threshold vacuum;
- and
- adjusting the throttle valve to a second fully closed position in response to vacuum of a second vacuum consumption device being less than the threshold vacuum.
A method comprising:
- rotating a flexible throttle at a first threshold amount of power to prevent the flexible throttle from bending when in contact with one or more of a plurality of protrusions of an intake passage;
- and
- rotating the flexible throttle at a second threshold amount of power to allow the flexible throttle to bend when contacting the plurality of protrusions.
A system comprising:
- a flexible throttle arrange in an intake passage comprising a plurality of protrusions arranged along a vertical axis;
- wherein
- the flexible throttle is perpendicular to the vertical axis in a fully open position, the flexible throttle is at a first angle to the vertical axis in a partially open position, where the first angle is within a first angular range, the flexible throttle is at a second angle in a first fully closed position or a second fully closed position, where the second angle is less than the first angle and within a second angular range, and where the flexible throttle is parallel to the vertical axis in a partially closed position.
Dependencies are inferred from the claim text.