Device for variable activation of valves for internal combustion engines
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United States of America Patent
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Sep 19, 2006
Issued Date -
N/A
app pub date -
Mar 19, 2004
filing date -
Feb 19, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for variable activation of valves for internal combustion engines, which is arranged in a cylinder head having a camshaft mounted in a fixed location with valves that close by means of spring force through a stroke transfer arrangement. This device includes a movable element mounted with a fixed pivot, and has a support cam and a control cam. An intermediate member is displaceably mounted and supported on the element, and is in engagement with a cam lever of the camshaft, as well as the stroke transfer arrangement. The intermediate member supports itself on the support cam and control cam with a non-positive lock, sliding during the stroke movement. Whereby the control cam determines the stroke movement to be transferred to the stroke transfer arrangement by the intermediate member, as a function of the pivot position of the element that can change its position.
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