Oil supply
AssigneeDeutz Aktiengesellschaft
InventorsAlfred Inden, Daniel Bertram
Life of this patent
Estimating the term…
Abstract
An internal combustion engine includes at least one cylinder crankcase, at least one cylinder head (1), at least one overhead camshaft (2), at least two rocker arms (3) which are driven by the camshaft (2) and actuate the combustion valves, the camshaft(s) (2) being mounted in the cylinder head housing, and an oil supply line (9) which is situated in particular in the area of the top face of the cylinder head (1) for lubricating camshaft bearing brackets (10) and the rocker arm brackets (11).
Claims7
An internal combustion engine comprising:
- a cylinder crankcase;
- a cylinder head;
- an overhead camshaft;
- at least two rocker arms driven by the overhead camshaft and to actuate combustion valves, the overhead camshaft being mounted in a cylinder head housing;
- a valve cover frame arranged at a top face of perimeter walls of the cylinder head, the top face of the cylinder head forming a sealing surface to the valve cover frame;
- an oil supply borehole configured for conducting engine oil from the cylinder crankcase through the cylinder head to the valve cover frame;
- an oil supply line situated in an area of the top face of the cylinder head for lubricating camshaft bearing brackets and rocker arm brackets, wherein said oil supply line is arranged in the valve cover frame;
- and
- an oil pressure-limiting oil pressure valve situated upstream from the oil supply borehole or at a transfer point of the cylinder head to the valve cover frame.
An internal combustion engine comprising:
- a cylinder crankcase;
- a cylinder head;
- an overhead camshaft;
- at least two rocker arms driven by the overhead camshaft and to actuate combustion valves, the overhead camshaft being mounted in a cylinder head housing;
- a valve cover frame enclosing said rocker arms and arranged at a top face of the cylinder head, the top face of the cylinder head forming a sealing surface to the valve cover frame;
- an oil supply borehole configured for conducting engine oil from the cylinder crankcase through the cylinder head to the valve cover frame;
- an oil supply line situated in an area of the top face of the cylinder head for lubricating camshaft bearing brackets and rocker arm brackets, wherein said oil supply line is arranged in the valve cover frame;
- and
- an oil pressure-limiting oil pressure valve situated upstream from the oil supply borehole or at a transfer point of the cylinder head to the valve cover frame.
An internal combustion engine comprising:
- a cylinder crankcase;
- a cylinder head;
- an overhead camshaft;
- at least two rocker arms driven by the overhead camshaft and to actuate combustion valves, the overhead camshaft being mounted in a cylinder head housing;
- a valve cover frame arranged at a top face of perimeter walls of the cylinder head, the top face of the cylinder head forming a sealing surface to the valve cover frame;
- an oil supply borehole configured for conducting engine oil from the cylinder crankcase through the cylinder head to the valve cover frame;
- an oil supply line situated in an area of the top face of the cylinder head for lubricating camshaft bearing brackets and rocker arm brackets, wherein said oil supply line is arranged in the valve cover frame;
- and
- an oil pressure-limiting oil leakage situated at a transfer point of the cylinder head to the valve cover frame.
Dependencies are inferred from the claim text.