Engine cylinder head push rod tube configuration
AssigneeChampion Engine Technology, LLC
InventorsRussell J. Dopke, Aleko D. Sotiriades, Mark J. Sarder
Life of this patent
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Abstract
A cylinder head and push rod tube configuration for an internal combustion engine is disclosed. The cylinder head includes a first end comprising a recessed rocker arm cavity. The cylinder head also includes a second end opposite the first end and defining an upper end of a combustion chamber. The recessed rocker arm cavity has a lower surface with a pair of push rod tube bores therethrough. The second end of the cylinder head has a pair of push rod tubes positioned in the push rod tube bores between the recessed rocker arm cavity and the second end. An intake port and an exhaust port each extend through the cylinder head to the combustion chamber.
Claims23
A cylinder head for an internal combustion engine, the cylinder head comprising:
- a first end comprising a recessed rocker arm cavity, the recessed rocker arm cavity having a lower surface with a pair of push rod tube bores therethrough;
- a second end opposite the first end and defining an upper end of a combustion chamber, the second end having another pair of push rod tube bores therethrough;
- a pair of push rod tubes positioned in the push rod tube bores between the recessed rocker arm cavity and the second end of the cylinder head;
- and
- an intake port and an exhaust port each extending through the cylinder head to the combustion chamber.
A cylinder head assembly, the assembly comprising:
- a cylinder head configured to be operatively coupled to a cylinder block, the cylinder head comprising:
- a base portion to contact the cylinder block;
- an intake port and an exhaust port;
- a top portion comprising a recessed valve assembly cavity, the recessed valve assembly cavity and base portion forming a gap therebetween along a side of the cylinder head;
- and
- a pair of push rod tubes extending through the gap from the base portion to the recessed valve assembly cavity;
- an intake valve and exhaust valve in communication with the respective intake port and exhaust port, the intake valve and exhaust valve each having a stem extending into the recessed valve assembly cavity;
- a rocker arm assembly coupled into the recessed valve assembly cavity;
- and
- a pair of push rods, each push rod inserted into a respective push rod tube and in communication with the rocker arm assembly.
A multi-cylinder internal combustion engine, the engine comprising:
- a crankcase;
- a plurality of cylinders, each cylinder having a bore and a piston located in the bore;
- a plurality of cylinder heads, each cylinder head having a lower end coupled to a respective cylinder, each cylinder head further comprising:
- an upper end having a cavity for inclusion of rocker components;
- a recess located under the cavity;
- a pair of push rod tubes positioned within the recess and extending from the lower end to the cavity;
- an intake valve in communication with an intake port, and an exhaust valve in communication with an exhaust port, the intake and exhaust valves each having stems protruding into the cavity;
- rocker components coupled to the inside of each cavity;
- a push rod located in each of the push rod tubes and in communication with respective rocker components and the crankcase.
Dependencies are inferred from the claim text.