Adjustable valve device of internal combustion engine
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United States of America Patent
Stats
-
Oct 23, 2018
Grant Date -
Nov 3, 2016
app pub date -
Jan 22, 2015
filing date -
Jan 22, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An adjustable valve device includes: a first cam portion penetrated by a camshaft, rotating with the camshaft, and including an elongated hole formed therein; a U or L shaped second cam portion supported by the first cam portion so as to swing to move between a first state and a second state; a stopper pin fixed to the second cam portion and penetrating through the elongated hole; a biasing member biasing the stopper pin so that the second cam portion becomes in the first state; a lock mechanism locking the second cam portion only when the second cam portion is in the first state; and a cam follower exerting a reactive force so that the second cam portion becomes in the second state in a state where a lock of the second cam portion is released, wherein the reactive force is greater than a biasing force of the biasing member.
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Cited Art Landscape
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