Cylinder head configuration
OwnerMichael L. Clementsinventor
Life of this patent
Estimating the term…
Abstract
A cylinder head assembly for use in a flat head style internal combustion engine. A valve for use in the head has a cup portion above the face of the valve. The cup portion of the valve moves longitudinally in a sleeve or liner in the head of the engine.
Claims40
(CANCELLED BY PRELIMINARY AMENDMENT) A system for use in an internal combustion engine, the engine having a block portion, a head component, and a combustion chamber formed between the block portion and the head portion, the system including:
- an access port leading into the combustion chamber, the access port having a valve seat formed on the port proximate the combustion chamber;
- a valve having a land portion, a valve face portion and a tubular portion, the tubular portion extending outward from the face of the valve;
- a recess formed in the head portion of the engine to accommodate the tubular portion of the intake valve.
(CANCELLED BY PRELIMINARY AMENDMENT) A poppet type valve for use in an internal combustion engine comprising:
- a double ended valve stem;
- a valve head portion attached to one end of the valve stem, the valve head portion extending outwardly from the stem;
- the valve head portion having a land surface formed on the peripheral edge of the valve head portion, the valve head portion also having a face surface;
- a tubular element affixed to and extending from the face surface of the valve head portion.
(CANCELLED BY PRELIMINARY AMENDMENT) A method of increasing the compression ratio of an “L-head” internal combustion engine, the engine having at least one valve, a cylinder head, a block portion, a combustion chamber formed between the cylinder head and the block portion and at least one valve actuation cam, the method comprising the acts of:
- providing a cavity in the cylinder head of the engine;
- locating the cavity in the cylinder head in line with a valve of the engine;
- moving the valve into the cavity when access to the combustion chamber is desired.
(CANCELLED BY PRELIMINARY AMENDMENT) A cylinder head for accommodating an intake valve and an exhaust valve, each valve having a circumferential wall, the cylinder head having a head surface bottom side, the cylinder head comprising:
- a monolithic block of material having a cavity formed as a depression in the head surface bottom side;
- an intake valve accommodating bore formed in the monolithic block of material, the bore capable of accommodating the circumferential wall of the intake valve;
- an exhaust valve accommodating bore formed in the monolithic block of material, the bore capable of accommodating the circumferential wall of the exhaust valve;
- an intake bore liner for fitting into the intake valve accommodating bore;
- an exhaust bore liner for fitting into the exhaust valve accommodating bore;
- a retainer plate covering the intake and exhaust valve accommodating bores and retaining the intake bore liner and the exhaust bore liner in the intake valve accommodating bore and exhaust valve accommodating bore respectively.
(CANCELLED BY PRELIMINARY AMENDMENT) The invention in accordance with 22 wherein the bleed holes of the intake and the exhaust bores provide a pulsed source of pressure.
(CANCELLED BY PRELIMINARY AMENDMENT) The invention in accordance with 22 wherein the bleed holes of the intake and the exhaust bores provide a pulsed source of vacuum.
(CANCELLED BY PRELIMINARY AMENDMENT) The invention in accordance with 22 wherein the bleed holes of the intake and the exhaust bores provide a pulsed source of pressure and vacuum.
(CANCELLED BY PRELIMINARY AMENDMENT) A method for increasing the compression and reducing harmful emissions from an internal combustion engine, the engine having a removable cylinder head, an intake valve and an exhaust valve, a block portion to which the head is attached, and an intake and an exhaust valve, comprising the acts of:
- removing the cylinder head from the engine block;
- replacing the intake and exhaust valves with intake and exhaust valves having a circumferential wall extending above the faces of each of the valves;
- installing a second cylinder head on the engine block, the second cylinder head comprising;
- a monolithic block of material having a cavity formed as a depression in the head surface bottom side;
- an intake valve accommodating bore formed in the monolithic block of material;
- an exhaust valve accommodating bore formed in the monolithic block of material;
- an intake bore liner for fitting into the intake valve accommodating bore;
- an exhaust bore liner for fitting into the exhaust valve accommodating bore;
- a retainer plate covering the intake and exhaust valve accommodating bores and retaining the intake bore liner and the exhaust bore liner in the intake valve accommodating bore and exhaust valve accommodating bore respectively.
A cylinder head for accommodating an intake valve and an exhaust valve, each valve having a circumferential wall, the cylinder head having a head surface bottom side and comprising:
- a cavity formed as a depression in the head surface bottom side;
- an intake valve accommodating bore formed in the cylinder head, the bore capable of accommodating the circumferential wall of the intake valve;
- an exhaust valve accommodating bore formed in the cylinder head, the bore capable of accommodating the circumferential wall of the exhaust valve.
The invention in accordance with 32 wherein the head includes intake and exhaust bleed holes in the intake and the exhaust bores.
The invention in accordance with 34 wherein the bleed holes of the intake and the exhaust bores each provide a pulsed source of vacuum.
The invention in accordance with 35 wherein the bleed holes of the intake and the exhaust bores each further provide a pulsed source of pressure.
A method for increasing the compression and reducing harmful emissions from an internal combustion engine, the engine having a removable cylinder head, an intake valve and an exhaust valve, a block portion to which the head is attached, and an intake and an exhaust valve, comprising the acts of:
- removing the installed cylinder head from the engine block;
- replacing the installed intake and exhaust valves with replacement intake and exhaust valves, the replacement intake and exhaust valves having a circumferential wall extending above the faces of each of the valves;
- installing a replacement cylinder head on the engine block, the replacement cylinder head comprising;
- a cavity formed as a depression in the head surface bottom side;
- an intake valve accommodating bore formed in the replacement cylinder head;
- an exhaust valve accommodating bore formed in the replacement cylinder head;
- an intake bore liner for fitting into the intake valve accommodating bore;
- and
- an exhaust bore liner for fitting into the exhaust valve accommodating bore.
Dependencies are inferred from the claim text.