Internal-combustion engines – Multiple cylinder – Cylinder offset from crankshaft axis
Patent
1988-11-23
1992-05-19
Okonsky, David A.
Internal-combustion engines
Multiple cylinder
Cylinder offset from crankshaft axis
123 56AC, 123 61R, 417269, 417521, F02B 2512
Patent
active
051138085
ABSTRACT:
A double piston engine has a medial shaft between two pistons which reciprocate in opposed cylinders. From the pistons extend outer piston shafts which serve as control shafts. The outer ends of the cylinders are provided with inlet ports and control recesses while the control shafts have also control recesses and the meeting of the control recesses defines the inlet of the fluid into the cylinders. More details serve to combine a plurality of double piston engines to work in unison in timed relation, to increase the power per a given weight or to use the engine as a hydrofluid conveying combustion engine as well as the prevention of dead spaces by specific valves or configurations and locations. A piston may form a first piston portion and a plurality of secondary piston portions with the sum of the cross-sectional areas of the secondary piston portions equal to the cross-sectional area of the first piston portion.
REFERENCES:
patent: 1487077 (1924-03-01), Pratt
patent: 1679668 (1928-08-01), Keas
patent: 1866022 (1932-07-01), Findeisen
patent: 2407790 (1946-09-01), Tourneau
patent: 2463308 (1949-03-01), Prieto
patent: 2780208 (1957-02-01), Brown
patent: 3340855 (1967-09-01), Brown
patent: 4097198 (1978-06-01), Herron
patent: 4911614 (1990-03-01), Kawai et al.
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