Wireless control of actuated valve in variable compression ratio piston
AssigneeKing Abdullah University of Science and Technology
InventorBengt Håkan JOHANSSON
Life of this patent
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Abstract
A telescopic piston for use with an internal combustion engine includes an inner piston; an outer piston located over the inner piston; an upper oil chamber formed between the inner piston and the outer piston; and an actuated valve having a controllable peak pressure that opens the actuated valve. A value of the peak pressure is wirelessly received at the telescopic piston.
Claims21
A telescopic piston for use with an internal combustion engine, the telescopic piston comprising:
- an inner piston;
- an outer piston located over the inner piston;
- an upper oil chamber formed between the inner piston and the outer piston;
- and
- an actuated valve having a controllable peak pressure that opens the actuated valve,
- wherein a value of the peak pressure is wirelessly received at the telescopic piston.
An internal combustion engine comprising:
- a wireless transmitter;
- a cylinder;
- and
- a telescopic piston located inside the cylinder, the telescopic piston having an actuated valve,
- wherein a peak pressure of the actuated valve is received wirelessly from the transmitter.
A method for adjusting a peak pressure of an actuated valve in a telescopic piston of an engine, the method comprising:
- receiving at a receiver of the telescopic piston a signal in a wireless manner, wherein the signal is indicative of the new peak pressure;
- and
- replacing a current peak pressure of the actuated valve with the new peak pressure.
Dependencies are inferred from the claim text.