ELECTRIC AIR FLOW CONTROL DEVICE
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United States of America Patent
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Issued Date -
May 2, 2019
app pub date -
Jun 12, 2018
filing date -
Jun 12, 2018
priority date (Note) -
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Abstract
In an electric air flow control device for controlling the flow rate of air supplied to an engine, a drive unit and a throttle unit are formed separately from each other, and the drive unit and the throttle unit are integrally connected to open and close a throttle valve by a motor. An outer ring of a bearing attached to a rotating shaft of the throttle valve is used as a spigot joint to be inserted into both of a recess formed in the drive unit and a recess formed in the throttle unit, and the concentricity of the rotating shaft is obtained between the drive unit and the throttle unit.
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