Variable compression ratio internal combustion engine with displaceable cylinder head and cylinder housing
AssigneeDaimler AG
InventorsThomas Stolk, Alexander Von Gaisberg-Helfenberg
Life of this patent
Estimating the term…
Abstract
In an internal combustion engine for a motor vehicle, comprising a crankcase and a crankshaft accommodated therein, and a cylinder housing including at least one cylinder with a cylinder head, the cylinder housing with the cylinder head is supported directly on the crankshaft via eccentric elements which are pivotable for adjusting a position of the cylinder housing with the cylinder head relative to the crankshaft with the crankcase (12) for changing the compression ratio of the engine.
Claims7
An internal combustion engine (10), comprising a crankcase (12) and a crankshaft (14) supported in the crankcase (12), a cylinder housing (16) with at least one cylinder (18) provided with a cylinder head (20), and at least one eccentric element (32) provided for adjusting a relative position between the cylinder housing (16) and the crankcase (12), the eccentric element (32) being rotatably supported on the crankshaft (14) and directly supporting the cylinder housing (16) with the cylinder head (20), the cylinder housing (16) and the cylinder head (20) being movable relative to the crankshaft (14) and the crankcase (12) by rotation of the eccentric element (32) while the position of the crankshaft (14) with respect to the crankcase (12) remains fixed.
A motor vehicle comprising an internal combustion engine (10) having an internal combustion engine (10) comprising a crankcase (12) and a crankshaft (14) supported in the crankcase (12), a cylinder housing (16) with at least one cylinder (18) including a cylinder head (20), the cylinder housing (16) and at least one eccentric element (32) for adjusting a relative position between the cylinder housing (16) and the crankcase (12), the eccentric element (32) being pivotally supported directly on the crankshaft (14) and supporting the cylinder housing (16) with the cylinder head (20) so that the cylinder housing (16) and the cylinder head (20) are movable relative to the crankshaft (14) and the crankcase by rotation of the eccentric element while the position of the crankshaft (14) with respect to the crankcase (12) remains fixed.
Dependencies are inferred from the claim text.