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US 6,644,255 B1Granted
Guide plate for a poppet valve
AssigneeVee Two Ptd Ltd.
InventorCarl Carisbrook Henry
Life of this patent
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AssigneeVee Two Ptd Ltd.
InventorCarl Carisbrook Henry
Estimating the term…
A guide member for a valve actuation mechanism, the guide member having a slot or profiled surface defining a valve actuating portion and a non-valve actuating portion. A valve actuating member such as a pin, moves along the slot or profiled surface in a cyclic fashion, wherein the pin is connected to a valve so that when the pin moves along the valve actuating portion, the valve is actuated, and when the pin moves along the non-valve actuating portion, the valve is not actuated. The non-valve actuating portion of the slot or profiled surface is of sufficient length such that the entire range of cyclic motion of the pin is able to be contained within the non-valve actuating portion. To move the range of cyclic motion from one section of the guide path to another, the guide member may be moved relative to the pin. Said arrangement allows a valve to be selectively operated or deactivated without changing the cyclic motion of the pin, but by merely moving the guide member.
A valve actuating apparatus including a guide member and a valve actuation member wherein said guide member includes a guide path having a valve actuating portion and one or more non-valve actuating portions and wherein, in use, said valve actuation member selectively moves solely along one of the non-valve actuating portions of the guide path such that the valve is not actuated.
A method of selectively activating and deactivating a valve using a valve actuating apparatus including a guide member having a guide path with a non-valve actuating portion and a valve actuating portion, including the steps of:
A valve actuating apparatus for controlling the speed of an internal combustion engine having a combustion chamber and at least one valve associated with said combustion chamber, said apparatus including a guide path, having a valve actuating portion and a non-valve actuating portion, and a valve actuation member for actuating the valve, wherein, in use, the valve actuation member selectively moves along a portion of both the valve actuating portion and the non-valve actuating portion of the guide path to restrict movement of the valve and thereby control the speed of the engine.
A valve actuating apparatus for deactivating a combustion chamber of an internal combustion engine having at least one combustion chamber and at least one valve associated with said combustion chamber, said apparatus including a guide path, having a valve actuating portion and one or more non-valve actuating portions, and a valve actuation member for actuating the valve, wherein, in use, the valve actuation member selectively moves solely along one of the non-valve actuating portions of the guide path such that the valve is either held closed or is held open, thereby deactivating said combustion chamber.
A variable valve actuation apparatus including a variable means and a valve actuation member wherein the variable means is selectively positionable such that, in use, the valve actuation member moves along a non-valve actuating portion of a guide path, such that the valve is not actuated during an engine cycle.
Dependencies are inferred from the claim text.