Cylinder head for an auto-ignition engine with direct injection
AssigneeFord Global Technologies, LLC
InventorsHans Guenter Quix, Klaus-Peter Heinig, Florian Huth
Life of this patent
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Abstract
An auto-ignition engine system is provided. The auto-ignition engine system includes a cylinder having an intake valve and an exhaust valve coupled thereto, an opening in a cylinder head defining a portion of the boundary of the cylinder, a glow plug heating element extending through the opening into the cylinder, an insert at least partially surrounding a glow plug heating element and coupled thereto, and an adjustment mechanism configured to alter the position of the glow plug heating element and the insert in the cylinder.
Claims16
A cylinder head for an auto-ignition engine with direct injection, in a motor vehicle, comprising:
- a main body which has at least one opening for an injection valve and at least one receiving region for a glow plug, the main body including;
- an insert which is arranged in the receiving region and which is provided for at least partially receiving the glow plug and which is linearly displaceable relative to the main body such that a volume, which can be at least partially delimited by the main body, of a combustion chamber of the auto-ignition engine can be varied, the insert being displaceable between a first position and a second position, and a second compression ratio based on the volume of the combustion chamber in the second position being higher than a first compression ratio based on the volume of the combustion chamber in the first position.
An auto-ignition engine system comprising:
- a cylinder having an intake valve and an exhaust valve coupled thereto;
- an opening in a cylinder head defining a portion of the boundary of the cylinder;
- a glow plug heating element extending through the opening into the cylinder;
- an insert at least partially surrounding a glow plug heating element and coupled thereto;
- and
- an adjustment mechanism configured to alter the position of the glow plug heating element and the insert in the cylinder.
A method for operating an engine system comprising:
- adjusting a position of a glow plug unit within a cylinder based on engine operating conditions, the glow plug unit including a heating element and an insert coupled thereto and at least partially surrounding the heating element.
Dependencies are inferred from the claim text.