Second air flow control apparatus
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United States of America Patent
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-
Aug 17, 2010
Grant Date -
Apr 16, 2009
app pub date -
Dec 18, 2007
filing date -
Oct 16, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A second air flow control apparatus disposed between an air inlet port of an engine and an exhaust port includes a body, a base, a moving member, and a gas thread. The body has a cavity, an air inlet and an air outlet, the air inlet and the air outlet being connected through the cavity. The base is fixed in the cavity, having at least an opening for controlling the air flow through the air flowing path. The moving member is pivotably disposed in the cavity or the base by a spring force and having at least a gate and a cover configured for controlling the area of the opening. The gas thread is connected to the moving member and configured for pulling the moving member to generate a processional rotation and a resetting rotation. The rotations are configured for controlling the gate and the cover part to adjust the opening area of the opening so as to precisely control the second air flow.
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