Overhead camshaft valvetrain system and kit for an engine
OwnerDaniel J. Svegliatoinventor
Life of this patent
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Abstract
An overhead camshaft valvetrain system for use with components of an existing engine, such as a stock block, an intake manifold and an exhaust manifold. The overhead camshaft valvetrain system can be used to convert an existing engine having a cam-in-block design to an overhead camshaft design. The overhead camshaft valvetrain system can include a transmission system, a cylinder head having an overhead camshaft and overhead valves, and an oiling system.
Claims23
An overhead camshaft valvetrain system for use with an existing engine, the existing engine having at least a cam-in-block engine block, the overhead camshaft valvetrain system comprising:
- a first and second cylinder head each comprising an overhead valvetrain system comprising at least one overhead camshaft, at least one valve, and at least one motion converter configured to convert rotational motion of the at least one overhead camshaft into translational motion, the at least one overhead camshaft configured to actuate the at least one valve via the at least one motion converter, wherein the first and second cylinder heads are fastened to the cam-in-block engine block;
- and
- a transmission system which operably couples the at least one overhead camshaft to a crankshaft of the existing engine, the transmission system comprising at least one flexible transmitter, wherein the transmission system is configured to transfer rotational motion of the crankshaft of the existing engine to the at least one overhead camshaft;
- wherein the existing engine is an engine from the Chevrolet LS family, and
- wherein the first cylinder head, the second cylinder head, and the transmission system can be retrofitted onto the existing cam-in-block engine block without modification.
An overhead cam cylinder head for use with an existing cam-in-block engine, the overhead cam cylinder head comprising:
- an overhead valvetrain system comprising:
- at least one overhead camshaft and a plurality of valves, the at least one overhead camshaft configured to actuate the plurality of valves;
- and
- a plurality of intake ports configured to be in fluid communication with an intake manifold of the existing cam-in-block engine and a plurality of piston bores of a cam-in-block engine block of the existing cam-in-block engine, wherein laterally extending vertical planes bisecting the plurality of intake ports are axially offset from longitudinal axes of the plurality of piston bores;
- wherein the existing cam-in-block engine is an engine from the Chevrolet LS family, and
- wherein the overhead cam cylinder head can replace an existing cylinder head of the existing cam-in-block engine without modification to the cam-in-block engine block and the intake manifold.
An oil feed system for use with an existing oil feed system of an existing cam-in-block engine, the existing cam-in-block engine having at least a plurality of existing lifter passageways in fluid communication with a left oil galley, a plurality of existing lifter passageways in fluid communication with a right oil galley, and a bearing fluid passageway in fluid communication with the left oil galley, the oil feed system comprising:
- an oil feed element positioned within at least one of the existing lifter passageways in fluid communication with at least one of the left oil galley and the right oil galley, the oil feed element configured to redirect oil from the galley into a cylinder head;
- and
- one or more passageway restrictor elements positioned within at least one of the existing lifter passageways in fluid communication with the left oil galley and at least one of the existing lifter passageways in fluid communication with the right oil galley, the passageway restrictor elements configured to inhibit flow of oil through the existing lifter passageways;
- wherein the existing cam-in-block engine is an engine from the Chevrolet LS family.
Dependencies are inferred from the claim text.