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US 10,060,384 B2Granted
System and method for air-fuel mixture formation in an internal combustion engine
AssigneeFord Global Technologies, LLC
InventorsMaziar Khosravi, Florian Huth
Life of this patent
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Abstract
Methods and systems are provided for forming an air-fuel mixture in a combustion chamber of an internal combustion engine. In one example, a system may include an adjustable intake line coupled to an inlet opening of the cylinder. The system may adjust turbulence formed in the cylinder in response to engine operating conditions by controlling a pivoting angle between a first section of the intake line and a second section of the intake line.
Claims17
An adjustable intake line for an engine system, comprising:
- a first section directly coupled to an inlet opening of an engine cylinder, and
- a second section mechanically coupled to the first section and pivotable relative to the first section via an actuator, wherein the first section and the second section are mechanically coupled to one another in an articulated fashion.
A method for an engine system, comprising:
- adjusting an angle between a central axis of a first section of an intake line and a central axis of a second section of the intake line via an actuator in response to engine operating conditions, wherein the first section is mechanically coupled between the second section and a cylinder of the engine, wherein by adjusting the angle, a tumble or a swirl of an air-fuel mixture in the cylinder is controlled.
An engine system, comprising:
- at least one cylinder;
- a first intake line coupled to a first inlet opening of the at least one cylinder, wherein the first intake line includes a first section and a second section;
- an actuator coupled to the second section of the first intake line;
- at least one fuel injector coupled to the at least one cylinder for directly injecting a fuel into the at least one cylinder;
- a controller configured with computer readable instructions stored on non-transitory memory to:
- actuate the actuator to pivot the second section of the first intake line relative to the first section of the first intake line in response to engine operating conditions;
- and
- adjust operation of the at least one fuel injector in response to a degree of pivot.
5 more elements
Dependencies are inferred from the claim text.