Continuous variable valve duration apparatus and engine provided with the same
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United States of America Patent
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Dec 26, 2023
Grant Date -
N/A
app pub date -
Nov 9, 2022
filing date -
Jun 29, 2022
priority date (Note) -
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Abstract
A continuous variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed and the camshaft is inserted, a guide bracket of which an upper guide boss is formed, an inner wheel transmitting the rotation of the camshaft to the cam unit, a wheel housing of which a guide shaft having a guide thread formed thereto to be movably inserted into the upper guide boss is formed thereto, and of which a tail guide guiding the relative movement of the guide bracket is formed thereto, and the wheel housing into which the inner wheel is rotatably inserted, a worm wheel of which an inner thread engaged with the guide thread is formed on inside thereof and of which an outer thread is formed on outside thereof, and a tolerance adjusting pin inserted into the tolerance adjusting portion.
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