Cylinder head for an internal combustion engine
AssigneeAVL List GmbH
InventorsRobert Pöschl, Christof Knollmayr
Life of this patent
Estimating the term…
Abstract
The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder, having at least one valve seat ring (3) for a lifting valve, wherein the valve seat ring (3) is surrounded by an annular cooling duct (4) for a coolant that is at least partly molded into the cylinder head (1), wherein the cooling duct (4) at least partly surrounds the valve seat ring and extends between an inlet (5, 15, 25) and at least one outlet (6). In order to reduce the valve wear, provision is made for a plurality of inlets (5, 15, 25) to open into the cooling duct (4), wherein the inlets (5, 15, 25) are preferably arranged asymmetrically in relation to a meridian plane (δ) of the valve seat ring (3) through the outlet (6).
Claims16
1-15. (canceled)
A cylinder head for an internal combustion engine, comprising at least one cylinder, at least one valve seat ring for a lifting valve, wherein the valve seat ring is surrounded by an annular cooling duct for a coolant that is at least partly moulded into the cylinder head, wherein the cooling duct at least partly surrounds the valve seat ring and extends between at least one inlet and at least one outlet, wherein several inlets open into the cooling duct, wherein the inlets are arranged asymmetrically in relation to a meridian plane (δ) of the valve seat ring through the outlet, wherein at least one inlet opens obliquely into the cooling duct, so that the following applies to the angle β:
- 0<β<90°, and at least one further inlet opens radially into the cooling duct, so that the angle β=90°.
Dependencies are inferred from the claim text.