Device for varying the fuel-air mixture flow to an engine
AssigneeHyundai Motor Company
InventorJong-Hoe Huh
Life of this patent
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Abstract
The present invention relates to a device for varying the fuel-air mixture flow to an engine, and more particularly, to a device for varying the fuel-air mixture flow to the engine that can change the fuel-air mixture reaching the combustion chamber, thus improving fuel combustion and reducing pollution. A preferred embodiment of the invention delays spark timing based on engine speed and fuel-air mixture flow to further improve engine performance. The device comprises an actuator and a manipulator for changing the fuel-air mixture flow through an intake manifold into the engine in response to control signals transmitted from an electronic control unit.
Claims9
A variable charge device for controlling the flow of the fuel-air mixture into an engine, the device comprising:
- an actuator, configured to be mounted at one side of an intake manifold having at least one port, operating in response to control signals transmitted from an electronic control unit;
- and
- a manipulator that is operated by the actuator to adjust an opening of each port of the intake manifold.
A system for controlling a fuel-air mixture flow in an engine, comprising:
- a plate disposed in a passage of an intake manifold, the plate rotatable about an axis to vary between a first position allowing a fuel-air mixture to flow relatively unhindered through the passage and a second position blocking the flow of the fuel-air mixture;
- a rod attached to the plate so that rotation of the rod causes the plate to vary between the first and the second position;
- a first gear attached to the rod so that rotation of the first gear causes rotation of the rod;
- a second gear that is rotated by a motor and is meshed with the first gear so that rotation of the first gear causes rotation of the second gear;
- an electronic control unit programmed with instructions for controlling the motor so that the plate is positioned at a desired location from the first position through the second position.
Dependencies are inferred from the claim text.