High-conductance, non-sealing throttle valve with projections and stop surfaces
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United States of America Patent
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May 21, 2019
Grant Date -
Mar 5, 2015
app pub date -
Sep 3, 2013
filing date -
Sep 3, 2013
priority date (Note) -
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Abstract
A throttle valve includes a throttle body including a housing having an inner surface. The throttle body includes first and second stop surfaces arranged on the inner surface. A throttle plate is rotatable inside the housing of the throttle body about a shaft between closed and open positions. A first projection is located on a first surface of the throttle plate adjacent to a radially outer end of the throttle plate. A second projection is located on a second surface of the throttle plate adjacent to a radially outer end of the throttle plate. The second surface is opposite the first surface. The first and second projections extend outwardly from the throttle plate in opposite directions and in corresponding directions of rotational movement of the throttle plate during closing to bias against the second stop surface when the throttle valve is closed.
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