Apparatus and method for valve timing in an internal combustion engine
OwnerAllen Eugene Looneyinventor
Life of this patent
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Abstract
Apparatus for controlling valve timing in an internal combustion engine locates a first valve port in a first side of the engine cylinder and a second valve port in a second side of the engine cylinder. A first rotating valve disc and a second rotating valve disc are respectively disposed next to the first and second valve port. Each rotating valve disc includes a valve port. Each disc rotates in synchronism with the crankshaft to align its' port with the respective first and second valve ports. A variety of intake devices coupled to the first rotating valve disc control intake air flow into the engine cylinder, and a variety of exhaust devices coupled to the second rotating valve disc control exhaust gas flow from the engine cylinder.
Claims44
An apparatus for controlling valve timing in an internal combustion engine, comprising:
- an engine block forming a crankcase open to a lower end of an engine cylinder, a crankshaft rotatingly disposed in the crankcase, and a piston disposed within the engine cylinder and reciprocatingly coupled to the crankshaft;
- a first fixed valve port formed in a first side of the engine cylinder and a second fixed valve port formed in a second side of the engine cylinder opposite the first side;
- a first rotating valve disc (RVD-1) and a second rotating valve disc (RVD-2) rotatably disposed on a hub adjacent each respective first and second fixed valve port formed in the engine cylinder;
- wherein:
- each RVD-1 and RVD-2 respectively includes an inner valve port and rotates in synchronism with the crankshaft to align the inner valve port formed in the RVD-1 and the RVD-2 with the respective first and second fixed valve ports formed in the first and second sides of the engine cylinder;
- an intake device, coupled between a first conduit and the RVD-1, for controlling intake air flow into the engine cylinder;
- and
- an exhaust device, coupled between a second conduit and the RVD-2, for controlling exhaust gas flow from the engine cylinder.
A method for controlling valve timing in an internal combustion engine, comprising the step of:
- providing separately, for each intake and exhaust system, a rotating valve port disc adjacent a fixed valve port formed in a side of an engine combustion cylinder, wherein the rotating valve port disc rotates in synchronism with a crankshaft in the engine to periodically align a port in the rotating valve port disc with the fixed valve port, and wherein the port in the rotating valve port disc is coupled through a conduit to the atmosphere;
- wherein:
- the port in the rotating valve port disc comprises a radial sector;
- the radial sector comprises an annular sector;
- the annular sector is comprised of a region between two concentric circles;
- the two concentric circles comprise circles with the same center point origin or common center.
Dependencies are inferred from the claim text.