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US 2014/0182535 A1Published application
Internal combustion engine valvetrain
AssigneeBorgWarner Inc.
InventorsDavid B. Roth, Christopher P. Thomas
Life of this patent
Estimating the term…
Abstract
An internal combustion engine valvetrain for an internal combustion engine. The internal combustion engine Includes one or more cylinders with one or more intake valves, one or more blowdown exhaust valves, and one or more scavenge exhaust valves. In one example, the internal combustion engine valvetrain includes a first valve actuation mechanism to open and close the blowdown exhaust valves, and Includes a second valve actuation mechanism to open and close the scavenge exhaust valves.
Claims14
A product comprising:
- an internal combustion engine valvetrain for an internal combustion engine with at least one cylinder having at least one intake valve, at least one blowdown exhaust valve, and at least one scavenge exhaust valve, the internal combustion engine valvetrain comprising a first valve actuation mechanism constructed and arranged to actuate the at least one blowdown exhaust valve, and including a second valve actuation mechanism constructed and arranged to actuate the at least one scavenge exhaust valve, wherein the first valve actuation mechanism is a separate and distinct component than the second valve actuation mechanism.
A product comprising:
- an internal combustion engine valvetrain for an internal combustion engine with at least one cylinder having at least one intake valve, at least one blowdown exhaust valve, and at least one scavenge exhaust valve, the internal combustion engine valvetrain comprising a first actuation means constructed and arranged to actuate the at least one blowdown exhaust valve and constructed and arranged to actuate the at least one intake valve, the internal combustion engine valvetrain comprising a second actuation means constructed and arranged to actuate the at least one scavenge exhaust valve.
A method comprising:
- actuating a blowdown exhaust valve of an internal combustion engine;
- and
- separately and distinctly, actuating a scavenge exhaust valve of the internal combustion engine.
Dependencies are inferred from the claim text.