Adiabatic, two-stroke cycle engine
First Claim
1. A reciprocating internal combustion engine comprising:
- at least two cylinders, each of said cylinders having a first end and a second end;
a pair of opposed pistons in each of said cylinders, each of said pistons comprising a piston head and a piston rod and each of said cylinders further comprising a pair of crosshead bearings adapted to guide each of said piston rods; and
a pair of double harmonic barrel cams mounted on a shaft parallel to and symmetrical with said cylinders and connected to said piston rods to impart axial motion thereto.
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Accused Products
Abstract
An engine structure and mechanism that operates on various combustion processes in a two-stroke-cycle without supplemental cooling or lubrication comprises an axial assembly of cylindrical modules and twin, double-harmonic cams that operate with opposed pistons in each cylinder through fully captured rolling contact bearings. The engine may comprise one or more pairs of axially symmetric cylinder modules which with their opposed pistons perform perfectly balanced reciprocating and rotary motions at all loads and speeds. The opposed pistons are double-acting, performing a two-stroke engine power cycle on facing ends and induction and scavenge air compression on their outside ends, all within the same cylinder bore.
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Citations
30 Claims
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1. A reciprocating internal combustion engine comprising:
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at least two cylinders, each of said cylinders having a first end and a second end; a pair of opposed pistons in each of said cylinders, each of said pistons comprising a piston head and a piston rod and each of said cylinders further comprising a pair of crosshead bearings adapted to guide each of said piston rods; and a pair of double harmonic barrel cams mounted on a shaft parallel to and symmetrical with said cylinders and connected to said piston rods to impart axial motion thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A reciprocating internal combustion engine comprising:
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at least two cylinders, each of said cylinders having a first end and a second end; a pair of opposed pistons in each of said cylinders, each of said pistons comprising a piston head and a piston rod; a pair of double harmonic barrel cams mounted on a shaft parallel to and symmetrical with said cylinders and connected to said piston rods to impart axial motion thereto; a crosshead at each of said ends of said cylinders, each of said crossheads comprising a suction port controlled by an automatic suction check valve adapted to permit available air to flow only into said cylinder and a discharge port controlled by an automatic discharge check valve adapted to permit gas to flow only out of said cylinder, and a bearing adapted to guide one of said piston rods. - View Dependent Claims (26)
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27. A reciprocating internal combustion engine comprising:
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at least two cylinders, each of said cylinders having a first end and a second end and comprising an injection port at the approximate midpoint of said cylinder, an exhaust port between said first cylinder end and said approximate midpoint and an intake port between said second cylinder end and said approximate midpoint; a pair of opposed pistons in each of said cylinders, each of said pistons comprising a piston head and a piston rod; and a pair of double harmonic barrel cams mounted on a shaft parallel to and symmetrical with said cylinders and connected to said piston rods to impart axial motion thereto; a crosshead at each of said ends of said cylinders, each of said crossheads comprising a suction port controlled by an automatic suction check valve adapted to permit available air to flow only into said cylinder and a discharge port controlled by an automatic discharge check valve adapted to permit gas to flow only out of said cylinder, and a bearing adapted to guide one of said piston rods. - View Dependent Claims (28)
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29. A reciprocating internal combustion engine comprising:
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at least two cylinders, each of said cylinders having a first end and a second end; a pair of opposed pistons in each of said cylinders, each of said pistons comprising a piston head and a piston rod; and a pair of double harmonic barrel cams mounted on a shaft parallel to and symmetrical with said cylinders and connected to said piston rods to impart axial motion thereto, wherein each of said cams comprises; a centrally disposed cam wheel affixed to said shaft; an axially movable cam rim mounted to the peripheral surface of said cam wheel; each of said cams further comprising an annular space between said cam wheel and said movable cam rim and means for controlling the volume of said annular space; and a cam ring affixed to the peripheral surface of said cam rim. - View Dependent Claims (30)
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Specification