Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-09-19
2006-09-19
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090200, C123S090150, C123S090310, C123S090430, C251S231000, C251S236000, C074S519000, C074S56800M, C074S569000
Reexamination Certificate
active
07107949
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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Neukirchner Heiko
Seidel Michael
Stiegler Lutz
Werler Andreas
Collard & Roe P.C.
Denion Thomas
IAV GmbH Ingenieurgesellschaft Auto und Verkeh
Riddle Kyle M.
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