Valve bridge with integrated lost motion system
AssigneeJacobs Vehicle Systems, Inc.
InventorsBrian Ruggiero, Neil Fuchs, Zhou Yang, Robb Janak
Life of this patent
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Abstract
A system and method of actuating one or more engine valves is disclosed. In one embodiment, the system comprises: a valve train element; a rocker arm pivotally mounted on a shaft and adapted to rotate between a first position and a second position, the rocker arm selectively receiving motion from the valve train element; a valve bridge disposed above the one or more engine valves; and a lost motion system disposed in the valve bridge.
Claims19
A method of selectively actuating an engine valve to produce an engine valve event, said method comprising the steps of:
- providing motion imparting means in selective contact with a rocker arm pivotally mounted on a rocker shaft;
- providing a valve bridge in contact with said rocker arm;
- providing an engine valve in contact with said valve bridge;
- selectively supplying hydraulic fluid to the valve bridge;
- and
- controlling the amount of motion imparted to the engine valve responsive to the supply of hydraulic fluid to the valve bridge.
A method of selectively actuating an engine valve to produce an engine valve event, said method comprising the steps of:
- providing motion imparting means in selective contact with a rocker arm pivotally mounted on a rocker shaft;
- providing a valve bridge in contact with said rocker arm;
- providing an engine valve in contact with said valve bridge;
- providing a lost motion component in said valve bridge;
- selectively supplying hydraulic fluid to the lost motion component;
- and
- controlling the amount of motion imparted to the engine valve responsive to the supply of hydraulic fluid to the lost motion component.
Dependencies are inferred from the claim text.