Camshaft phaser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 22, 2018
Issued Date -
N/A
app pub date -
Nov 10, 2015
filing date -
Nov 10, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool recirculation passage and a second spool recirculation passage which is diametrically opposed to the first spool recirculation passage. The first spool recirculation passage and the second spool recirculation passage provide paths for oil to flow from the advance chamber or the retard chamber to the phasing volume depending on the position of the valve spool.
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