Poppet valve and engine using same
OwnerJason Stewart Jacksoninventor
Life of this patent
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Abstract
One embodiment of the present invention provides a poppet valve offering an increased valve area, comprising an outer valve head comprising an outer valve port and an inner valve head comprising an inner valve port. The inner valve head is rotatable relative to the outer valve head to align the inner and outer valve ports to open a path through the poppet valve, thereby increasing the effective valve area of the poppet valve. The path created by aligning the inner and outer valve ports can be designed to mix air flowing into a combustion chamber.
Claims20
A method for operating an internal combustion engine, the internal combustion engine comprising a combustion chamber, a cylinder head, a piston, and a poppet valve, wherein the poppet valve comprises a valve stem and a valve head, the valve head comprising an inner valve head carried rotationally against an outer valve head, the inner valve head comprising at least a first inner valve port and the outer valve head comprising at least a first outer valve port, wherein the inner valve head and the outer valve head are rotatable relative to each other to open a first path through the valve head when the first inner valve port is aligned with the first outer valve port, the method comprising:
- a. moving the piston away from the cylinder head;
- b. extending the valve head into the combustion chamber, enabling an intake gas to flow around the valve head and into the combustion chamber;
- c. rotating the inner valve head relative to the outer valve head to open the first path through the valve head, enabling the intake gas to flow through the valve head and into the combustion chamber;
- d. retracting the valve head towards the cylinder head;
- e. rotating the inner valve head relative to the outer valve head to close the first path;
- f. moving the piston towards the cylinder head;
- g. seating the valve head against the cylinder head;
- and
- h. causing combustion in the combustion chamber.
A method for operating an internal combustion engine, the internal combustion engine comprising a combustion chamber, a cylinder head, a piston, and a poppet valve, wherein the poppet valve comprises a valve stem and a valve head, the valve head comprising an inner valve head carried rotationally against an outer valve head, the inner valve head comprising at least a first inner valve port and a second inner valve port, and the outer valve head comprising at least a first outer valve port and a second outer valve port, wherein the inner valve head and the outer valve head are rotatable relative to each other to open a first path and a second path through the valve head when the first and second inner valve ports are aligned with the first and second outer valve ports, the method comprising:
- a. moving the piston away from the cylinder head;
- b. extending the valve head into the combustion chamber, enabling an intake gas to flow around the valve head and into the combustion chamber;
- c. rotating the inner valve head relative to the outer valve head to open the first path and the second path through the valve head, enabling the intake gas to flow through the valve head and into the combustion chamber;
- d. retracting the valve head towards the cylinder head;
- e. rotating the inner valve head relative to the outer valve head to close the first path and the second path;
- f. moving the piston towards the cylinder head;
- g. seating the valve head against the cylinder head;
- and
- h. causing combustion in the combustion chamber.
A method for operating an internal combustion engine, the internal combustion engine comprising a combustion chamber, a cylinder head, a piston, and a poppet valve, wherein the poppet valve comprises a valve stem and a valve head, the valve head comprising an inner valve head carried rotationally against an outer valve head, the inner valve head comprising at least a first inner valve port and a second inner valve port, and the outer valve head comprising at least a first outer valve port and a second outer valve port, wherein the inner valve head and the outer valve head are rotatable relative to each other to open a first path and a second path through the valve head when the first and second inner valve ports are aligned with the first and second outer valve ports, the method comprising:
- a. moving the piston away from the cylinder head;
- b. extending the valve head into the combustion chamber, enabling an intake gas to flow around the valve head and into the combustion chamber;
- c. rotating the inner valve head relative to the outer valve head to open the first path and the second path through the valve head, enabling the intake gas to flow through the valve head and into the combustion chamber;
- d. directing by at least one of the first path or the second path the intake gas flowing through the valve head into a mixing action in the combustion chamber;
- e. retracting the valve head towards the cylinder head;
- f. rotating the inner valve head relative to the outer valve head to close the first path and the second path;
- g. moving the piston towards the cylinder head;
- h. seating the valve head against the cylinder head;
- and
- i. causing combustion in the combustion chamber.
Dependencies are inferred from the claim text.