MONOBLOCK VALVELESS OPPOSING PISTON INTERNAL COMBUSTION ENGINE
First Claim
1. An internal combustion engine comprising:
- at least one cylinder comprising a proximal end and a distal end, each cylinder containing a first piston and a second piston arranged in opposite directions within the cylinder and on opposite sides of the center of the cylinder, and each cylinder comprising a wall defining an interior volume,wherein each cylinder comprises at least one intake port on the proximal half of the cylinder and at least one exhaust port on the distal half of the cylinder, each port disposed as openings in the cylinder wall,wherein a surface of the piston heads of the first and second pistons create in combination with the cylinder wall a combustion chamber for ignition and burning of fuel;
at least two crankshafts, a first crankshaft connected to the first piston at the proximal end of the cylinder, and a second crankshaft connected to the second piston at the distal end of the cylinder;
at least one device for causing ignition of fuel in the combustion chamber, the device being disposed on and through the cylinder wall at or near the upper dead center of travel within the cylinder for the first piston;
wherein each of the crankshafts completes a single revolution about its own axis per fuel ignition event.
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Accused Products
Abstract
The present invention provides an internal combustion engine that provides advantages of both typical 2-stroke engines and typical 4-stroke engines, but using a new design unlike either. The present engine provides for use of pistons as means for opening and closing intake and exhaust ports disposed on cylinder walls. It also provides two pistons per cylinder in an opposing configuration, such that one fuel explosion event causes motion of both pistons per cylinder, in opposite directions. Each piston of a cylinder is connected to a separate crankshaft, which completes a single revolution about its axis per fuel explosion event in a cylinder. In a single cycle of piston movement along the cylinder, a full cycle of ignition, exhaust, intake, and compression is achieved.
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Citations
21 Claims
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1. An internal combustion engine comprising:
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at least one cylinder comprising a proximal end and a distal end, each cylinder containing a first piston and a second piston arranged in opposite directions within the cylinder and on opposite sides of the center of the cylinder, and each cylinder comprising a wall defining an interior volume, wherein each cylinder comprises at least one intake port on the proximal half of the cylinder and at least one exhaust port on the distal half of the cylinder, each port disposed as openings in the cylinder wall, wherein a surface of the piston heads of the first and second pistons create in combination with the cylinder wall a combustion chamber for ignition and burning of fuel; at least two crankshafts, a first crankshaft connected to the first piston at the proximal end of the cylinder, and a second crankshaft connected to the second piston at the distal end of the cylinder; at least one device for causing ignition of fuel in the combustion chamber, the device being disposed on and through the cylinder wall at or near the upper dead center of travel within the cylinder for the first piston; wherein each of the crankshafts completes a single revolution about its own axis per fuel ignition event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification