Intake control device
AssigneeHitachi Astemo, Ltd.
InventorHiroshi KIKUCHI
Life of this patent
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Abstract
An intake control device 1 includes: a body 3 including an intake passage 2; and a valve body 4 located in the intake passage 2. The intake passage 2 includes a direction continuation segment 13 in which a first major axis direction d1 and a second major axis direction d2 are approximately parallel to each other continuously from a downstream opening 6 of the body 3. The body 3 includes a seal plane 14 formed along a plane that intersects with part of the direction continuation segment 13. The valve body 4 includes a valve plane 15 formed by a plane that abuts the seal plane 14, and is configured to slide relative to the seal plane 14 via the valve plane 15 to adjust an opening degree of the intake passage 2.
Claims6
An intake control device comprising:
- a body including an intake passage that is at least part of an intake pipe leading to a combustion chamber of an internal combustion engine;
- and
- a valve body located in the intake passage,
- wherein the body includes an upstream opening and a downstream opening of the intake passage,
- the intake passage includes a direction continuation segment in which a first long axis direction and a second long axis direction are approximately parallel to each other continuously from the downstream opening, the first long axis direction being a direction orthogonal to a first parallel equal-interval dividing line group when a sum total of a product of an area of each of an unlimited number of fine openings and a shortest distance of the fine opening from a downstream center point that is an area center of the downstream opening is maximum, the unlimited number of fine openings being obtained by dividing, by the first parallel equal-interval dividing line group, a shape of the downstream opening as seen from a direction parallel to a passage center line that is a straight line connecting an upstream center point that is an area center of the upstream opening and the downstream center point, the second long axis direction being a direction orthogonal to a second parallel equal-interval dividing line group when a sum total of a product of an area of each of an unlimited number of fine passage cut shapes and a shortest distance of the fine passage cut shape from an area center of a passage cut shape that is a cross-sectional shape of the intake passage cut along any surface orthogonal to the passage center line is maximum, the unlimited number of fine passage cut shapes being obtained by dividing the passage cut shape by the second parallel equal-interval dividing line group,
- wherein the body includes a seal plane formed along at least part of a plane that intersects with at least part of the direction continuation segment, and
- wherein the valve body includes a valve plane formed by a plane that abuts the seal plane, and is configured to slide relative to the seal plane via the valve plane to adjust an opening degree of the intake passage.
Dependencies are inferred from the claim text.