Switching roller finger follower with rapid transition from locked to unlocked mode and method thereof
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United States of America Patent
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Jul 18, 2017
Grant Date -
Aug 27, 2015
app pub date -
Feb 12, 2015
filing date -
Feb 27, 2014
priority date (Note) -
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Abstract
A switching roller finger follower, including: a body including a locking barrel arranged to receive pressurized fluid; a first chamber partially enclosed by the body; at least one arm rotatably connected to the body; and a locking mechanism. The locking mechanism includes: a locking pin at least partially disposed in the first chamber; and a shuttle assembly including a shuttle pin and a check valve. The shuttle pin: is at least partially disposed in the locking barrel; includes a through-bore in communication with the first chamber; and is displaceable, in response to the pressurized fluid, to engage and disengage the locking pin with the at least one arm. The check valve is arranged to enable flow of the pressurized fluid through the through-bore to the first chamber.
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