Selectively tuned intake manifold
This patent describes intake manifold for an internal combustion engine having selectively variable length air flow passages, comprising: a hollow elongated housing about an interior space, the housing member having a side wall and end portions; means extending through the housing end portion to introduce air to the interior space; an air outlet extending from the side wall toward each cylinder of an associated internal combustion engine and being fluidly connected to the interior space; a tubular air distribution member supported for axial and rotative movement in the interior space of the housing and defining therein an interior passage, the distribution member having an open end positioned to pass air from the air in means and into the interior passage of the distribution member; a helically extending partition wall attached at an outer edge to the housing and encircling the air distribution member in close fitting fashion to allow relative axial and rotative movement of the distribution member, thus forming a spiral flow passage between the housing member and the outer surface of the air distribution member; window means spaced axially along and extending through the distribution member to allow air to flow from the interior passage to the spiral flow passage; means for selectively shifting the air distribution member both in an axial direction and in a rotative direction thereby positioning the window means along the spiral passage to change the air flow length between the window means and the air outlet.
- Assignee:
- Chrysler Motors Corp., Highland Park, MI
- Patent Number(s):
- US 4765286
- OSTI ID:
- 6761247
- Resource Relation:
- Patent File Date: Filed date 16 Oct 1986
- Country of Publication:
- United States
- Language:
- English
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