Valve timing controller for internal combustion engine
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United States of America Patent
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Nov 12, 2013
Grant Date -
Feb 7, 2013
app pub date -
May 18, 2011
filing date -
May 18, 2011
priority date (Note) -
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Abstract
A profile of a cam (33) of a camshaft (32) is set based on a relationship of a stop position of a vane rotor (36) at a most retarded phase relative to a housing rotor (37). In other words, the profile of the cam (33) arranged in the camshaft (32) is set so that a second opening (110B) of a communication passage (100), which opens in a second retardment chamber (52B), is located upward in a vertical direction from the axis C of the camshaft (32) when the camshaft (32) is at a neutral position, that is, when torque applied from the cam (33) to the camshaft (32) is the smallest.
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