Overhead sliding rotary valve assembly and method of use
OwnerLarry Kenneth Hillsinventor
Life of this patent
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Abstract
A variable port engine assembly and method of use utilizing a rotating camshaft having different sized ports that are dynamically aligned with intake, combustion, and exhaust ports and timed to open and close with appropriate engine cycles to change gas flow volumes through the combustion chamber to modify fuel efficiency and power.
Claims12
A cylinder head assembly for an internal combustion engine comprising:
- a. at least one intake camshaft and at least one exhaust camshaft wherein each said camshaft is cylindrical and has a center axis, a length, a width, a height, an outer surface, a proximal end adjacent to a rifled shaft actuator, and a distal end opposite said proximal end;
- b. a cylinder head having at least one intake port and at least one exhaust port, wherein said cylinder head houses at least one combustion chamber intake port and at least one combustion chamber exhaust port, wherein said at least one combustion chamber intake port and said at least one combustion chamber exhaust port are in communication with a combustion chamber;
- c. a cylindrical intake camshaft sleeve formed from the union of an cylinder head intake camshaft receiving apse and an aspiration head intake camshaft receiving apse, wherein said intake camshaft sleeve is in communication with said at least one cylinder head intake port and said at least one combustion chamber intake port and said cylindrical intake camshaft sleeve is configured to receive said intake camshaft;
- d. a cylindrical exhaust camshaft sleeve formed from the union of an cylinder head exhaust camshaft receiving apse and an aspiration head intake camshaft receiving apse, wherein said exhaust camshaft sleeve is in communication with said at least one cylinder head exhaust port and said at least one combustion chamber exhaust port and said cylindrical exhaust camshaft sleeve is configured to receive said exhaust camshaft;
- e. a plurality of intake camshaft aspiration ports extending through said at least one intake camshaft, wherein said intake camshaft aspiration ports are arranged linearly in sets of different sizes so as to create an intake channel to permit the flow of fuel and air to said at least one combustion chamber through said intake camshaft and said cylinder head during an intake stroke of said piston;
- f. a plurality of exhaust camshaft aspiration ports extending through said at least one exhaust camshaft, wherein said exhaust camshaft aspiration ports are arranged linearly in sets of different sizes so as to create an exhaust channel to permit the flow of combustion byproducts from said at least one combustion chamber through said exhaust camshaft and said cylinder head during an exhaust stroke of said piston;
- and
- g. an intake rifled shaft actuator for said intake camshaft and an exhaust rifled shaft actuator for said exhaust camshaft, each said rifled shaft actuator having a rotating camshaft drive and a camshaft shifter, wherein said camshaft drive is in communication with said proximal end of a respective said camshaft and arranged to rotate said camshaft about said center axis when said camshaft drive is actuated and which moves said camshaft linearly through said camshaft sleeve when said camshaft shifter is actuated.
An oil control and compression ring assembly for a cylindrical camshaft sleeve comprising rings which seat within said camshaft sleeve around each said intake aspiration port, said intake combustion chamber port, said exhaust combustion chamber port, and said exhaust aspiration port, wherein each said ring is comprised of a plurality of ring segments having ring segment joints which maintain a seal during thermal expansion and cooling of said ring segments.
The method of modifying the port size of an engine by linearly moving a camshaft housed within a ported camshaft sleeve along a camshaft center axis to align linearly arranged camshaft ports of differing of sizes with engine ports so as create at least one intake channel and at least one exhaust channel and to change a combustion chamber's volumetric throughput of gases when said camshaft moves to arrange ports of a different size with said engine ports.
Dependencies are inferred from the claim text.