Two-stroke cycle engine having linear gear drive
First Claim
1. Two-stroke cycle engine apparatus having linear piston rod movement and hypocycloid gearing connecting the piston rod and an output shaft, comprising, in combination:
- gearcase means, includinga housing in which the hypocycloid gearing is disposed, having a top wall, anda piston rod connected to the hypocycloid gearing and extending through the top wall;
cylinder means secured to the gearcase means, includingan inner cylinder,a piston movable in the inner cylinder and connected to the piston rod for providing compression within the inner cylinder in response to movement of the piston rod,an exhaust valve rod secured to the piston and movable therewith;
cylinder head means secured to the cylinder means, includinga cylinder head adjacent to the inner cylinder,an exhaust cylinder for receiving the exhaust valve rod,an exhaust port extending through the exhaust cylinder through which exhaust gases flow, and movement of the exhaust valve rod opens and closes the port in response to movement of the piston, andan exhaust stack communicating with the exhaust cylinder for receiving exhaust gases from the exhaust cylinder;
means for providing fuel and air into the cylinder means; and
means for combusting the fuel and air in the inner cylinder.
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Accused Products
Abstract
A balanced motor two-stroke cycle engine having a linear drive includes a sealed gearcase secured to a cylinder housing having a plurality of concentric cylinders. The sealed gearcase includes a fixed ring gear, a pinion gear whose diameter is equal to the radius of the ring gear, a hub on which a piston rod is journaled for rotation, and two sets of counterweights. The piston rod moves in a linear fashion as the pinion gear rotates inside the fixed ring gear. The piston rod extends into the innermost cylinder, and a piston secured to the piston rod reciprocates linearly in the innermost cylinder. Different embodiments of exhaust valve structure are illustrated in different embodiments, and an external combustion chamber embodiment is also illustrated.
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Citations
36 Claims
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1. Two-stroke cycle engine apparatus having linear piston rod movement and hypocycloid gearing connecting the piston rod and an output shaft, comprising, in combination:
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gearcase means, including a housing in which the hypocycloid gearing is disposed, having a top wall, and a piston rod connected to the hypocycloid gearing and extending through the top wall; cylinder means secured to the gearcase means, including an inner cylinder, a piston movable in the inner cylinder and connected to the piston rod for providing compression within the inner cylinder in response to movement of the piston rod, an exhaust valve rod secured to the piston and movable therewith; cylinder head means secured to the cylinder means, including a cylinder head adjacent to the inner cylinder, an exhaust cylinder for receiving the exhaust valve rod, an exhaust port extending through the exhaust cylinder through which exhaust gases flow, and movement of the exhaust valve rod opens and closes the port in response to movement of the piston, and an exhaust stack communicating with the exhaust cylinder for receiving exhaust gases from the exhaust cylinder; means for providing fuel and air into the cylinder means; and means for combusting the fuel and air in the inner cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Two-stroke cycle engine apparatus having linear piston rod movement and hypocycloid gearing connecting the piston rod and an output shaft, comprising, in combination:
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gearcase means, including a housing in which the hypocycloid gearing is disposed, having a top wall, and a piston rod connected to the hypocycloid gearing and extending through the top wall; cylinder means secured to the gearcase means, including a first cylinder, a piston movable in the first cylinder and connected to the piston rod for providing compression within the first cylinder in response to movement of the piston rod, and exhaust valve rod means secured to the piston and movable therewith; cylinder head means secured to the cylinder means, including a cylinder head secured to the first cylinder, and exhaust stack means secured to the cylinder head for receiving the exhaust valve rod means and for receiving exhaust gases from the inner cylinder, and movement of the exhaust valve rod means opens and closes the exhaust stack means in response to movement of the piston; means for providing fuel and air into the cylinder means; and means for combusting the fuel and air. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. Two-stroke cycle engine apparatus having linear piston rod movement and hypocycloid gearing connecting the piston rod and an output shaft, comprising, in combination:
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gearcase means, including a housing in which the hypocycloid gearing is disposed, having a top wall, and a piston rod connected to the hypocycloid gearing and extending through the top wall; a cylinder secured to the gearcase means; a piston movable in the cylinder and connected to the piston rod for providing compression within the cylinder in response to movement of the piston rod; exhaust valve rod means secured to the piston and movable therewith; a cylinder head secured to the cylinder; exhaust stack means secured to the cylinder head for receiving the exhaust valve rod means and for receiving exhaust gases from the cylinder, and movement of the exhaust valve rod means controls the flow of exhaust gases through the exhaust stack means in response to movement of the piston; means for providing fuel and air into the cylinder means; and means for combusting the fuel and air. - View Dependent Claims (32, 33, 34, 35, 36)
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Specification