Method of manufacturing and controlling a butterfly valve for an internal combustion engine
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United States of America Patent
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Oct 23, 2012
Grant Date -
Jun 11, 2009
app pub date -
Nov 26, 2008
filing date -
Nov 28, 2007
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Abstract
A method of manufacturing and controlling a butterfly valve for an internal combustion engine; the manufacturing and control method includes the steps of: establishing a maximum gaseous flow rate value which may flow through the feeding pipe when the butterfly plate is in the closing position; determining a conventional closing position at which the gaseous flow rate which flows through the feeding pipe is essentially equal to the maximum gaseous flow rate value; driving an actuator device so as not to normally pass the conventional closing position; and dimensioning the position of a catch element, so that when a rotational shaft abuts against the catch element the gaseous flow rate which flows through the feeding pipe is essentially lower than the maximum gaseous flow rate value.
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