Variable displacement engine having selectively engageable rocker arm with positioning device
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United States of America Patent
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Mar 29, 2011
Grant Date -
Apr 30, 2009
app pub date -
Oct 31, 2007
filing date -
Oct 31, 2007
priority date (Note) -
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Abstract
Systems and methods for selectively activating and deactivating gas exchange valves in a variable displacement internal combustion engine include a rocker arm having a positioning device that opposes movement of a lash adjustment device while deactivated to position a coupling hole of the rocker arm within a desired coupling range to facilitate coupling of the rocker arm during subsequent activation of an associated engine cylinder.
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