Integrated primary and auxiliary valve actuation system
AssigneeJacobs Vehicle Systems, Inc.
InventorRichard Vanderpoel
Life of this patent
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Abstract
A system and method for actuating at least one engine valve in an internal combustion engine to produce an engine valve event is disclosed. The system of the present invention may comprise: means for imparting motion to the at least one engine valve for producing the engine valve event; primary means for transmitting the motion from the motion imparting means to the at least one engine valve; and auxiliary means for transmitting the motion from the motion imparting means to the at least one engine valve. The auxiliary means may actuate the at least one engine valve only when the primary means is shut-off or fails.
Claims20
A valve actuation system for actuating at least one engine valve in an internal combustion engine to produce an engine valve event, comprising:
- means for imparting motion to the at least one engine valve for producing the engine valve event;
- primary means for transmitting motion from said motion imparting means to the at least one engine valve;
- and
- auxiliary means for transmitting the motion from said motion imparting means to the at least one engine valve,
- wherein said auxiliary means is integrated with said motino imparting means.
In an internal combustion engine valve actuation system, a method of actuating at least one engine valve to produce at least a portion of an engine valve event during failure or shut-off of a lost motion system contacting a means for imparting motion and the engine valve or an engine valve bridge, said method comprising the steps of:
- providing an actuation means extending from the motion imparting means;
- and
- actuating the engine valve to produce at least a portion of the engine valve event independent of the lost motion system.
A valve actuation system for actuating at least one engine valve in an internal combustion engine to produce an engine valve event, comprising:
- a cam;
- a rocker, having means for contacting said cam;
- a lost motion system adapted to selectively receive motion from said cam through said rocker and actuate the at least one engine valve to produce the engine valve event;
- and
- a first contact surface extending from said rocker, wherein said first contact surface actuates the at least one engine valve if said lost motion system is shut-off or fails.
A valve actuation system for actuating at least one engine valve in an internal combustion engine to produce an engine valve event, said system comprising:
- means for imparting motion to the at least one engine valve;
- a lost motion system adapted to selectively receive motion from said motion imparting means and actuate the at least one engine valve to produce the engine valve event;
- and
- a first contact surface extending from said motion imparting means, wherein said first contact surface actuates the at least one engine valve if said lost motion system is shut-off or fails.
Dependencies are inferred from the claim text.