System for controlling fluid flow
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United States of America Patent
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-
Apr 19, 2011
Grant Date -
Jul 3, 2008
app pub date -
Dec 13, 2007
filing date -
Dec 28, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for controlling fluid flow to or from a cylinder of an internal combustion engine is disclosed. The system includes a drive shaft having a rotary valve mounted thereon. The system also includes a cylinder head a cylinder head accommodating the rotary valve and at least part of the drive shaft therein, the rotary valve being arranged to selectively open or close a flow opening in the cylinder head. The system also includes a source of rotation and a mechanical drive train rotatably coupling the source of rotation to the drive shaft. The mechanical drive train has a non-circular element rotatably coupled to the source of rotation and a non-circular element rotatably coupled to the drive shaft. The non-circular elements are rotatably coupled to cause a speed variation in one of the non-circular elements upon a constant rotation of the other non-circular elements.
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