Choke device for an internal combustion engine intake system
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United States of America Patent
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Jul 8, 2008
Grant Date -
Jul 19, 2007
app pub date -
Nov 17, 2006
filing date -
Nov 25, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A choke device for an intake system of an internal combustion engine; the choke device has at least one choke body fitted movably inside an intake conduit, and an actuating device for moving the choke body to and from a work position in which the choke body reduces the cross section of the intake conduit; and the actuating device has a filiform actuating member made of a shape-memory material that changes shape when subjected to physical external stress, and having a first portion embedded in the choke body, and a second portion located outside the choke body and secured mechanically to a fixed part.
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