Engine electronic valve actuation
OwnerDavid Meiselinventor
Life of this patent
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Abstract
A head assembly for an internal combustion engine includes an electromagnetic valve actuation system. The head has an intake or exhaust passage defined therein. A valve is disposed in the passage and is operable to selectively open and close the passage. The head has a cooling passage defined therein for passage of a cooling fluid. An electromagnetic actuator has a piston in mechanical communication with the valve and a coil in fluid communication with the cooling passage. The electromagnetic actuator is operable to move the valve between a closed and an open position.
Claims8
A head assembly for an internal combustion engine with an electromagnetic valve actuation system, comprising:
- a head having an intake or exhaust passage defined therein;
- a valve disposed in the passage and operable to selectively open and close the passage;
- the head having a cooling passage defined therein for passage of a cooling fluid;
- and
- an electromagnetic actuator having a piston in mechanical communication with the valve and a coil in fluid communication with the cooling passage;
- wherein the electromagnetic actuator is operable to move the valve between a closed and an open position.
A method of operating an intake valve comprising:
- providing an electromagnetic actuation system comprising:
- a head having an intake or exhaust passage defined therein;
- a valve disposed in the passage and operable to selectively open and close the passage;
- the head having a cooling passage defined therein for passage of a cooling fluid;
- and
- an electromagnetic actuator having a piston in mechanical communication with the valve and a coil in fluid communication with the cooling passage;
- wherein the electromagnetic actuator is operable to move the valve between a closed and an open position;
- defining an intake period during which an intake mixture may be provided to a combustion cylinder;
- and
- using the electromagnetic actuator to open and close the valve multiple times during the intake period.
Dependencies are inferred from the claim text.