Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle
Patent
1997-04-15
1998-06-02
Okonsky, David A.
Internal-combustion engines
Multiple piston, common nonrestrictive combustion chamber
Four-cycle
123 535, 1231973, 74579E, F02B 7526
Patent
active
057586110
ABSTRACT:
A two-stroke, U-type uniflow engine includes a cylinder block forming parallel first and second cylinders and a common combustion chamber connecting the first and second cylinders. First and second pistons are mounted for reciprocal, linear movement within the first and second cylinders respectively. The engine also includes a crank shaft having a crank pin and a one-piece forked connecting rod connecting each of the first and second pistons to the crank pin. The connecting rod is elastically, bilaterally flexible to accommodate variations between a maximum distance between the first and second pistons and a minimum distance between the first and second pistons and is in a relaxed state half-way between the maximum distance and the minimum distance. The central wall has a slot for passage of the connecting rod therethrough and angled notches which correspond to maximum angles of the connecting rod. The connecting rod is designed to minimize weight and length and the engine bore and stroke are selected to minimize the difference between the maximum and minimum distance of the wrist pin displacement in order to reduce vibrations and to increase engine output by maintaining high crankcase compression.
REFERENCES:
patent: 1470752 (1923-10-01), Kundsen
patent: 1474591 (1923-11-01), Hounsfield
patent: 1777478 (1930-10-01), Schaeffers
patent: 1902020 (1933-03-01), Ewing
patent: 2048243 (1936-07-01), Zoller
patent: 2342900 (1944-02-01), Sandell
patent: 2419531 (1947-04-01), Bronander
patent: 3537437 (1970-11-01), Paul et al.
patent: 4079705 (1978-03-01), Buchner
patent: 4296714 (1981-10-01), Buchner
patent: 4338892 (1982-07-01), Harshberger
patent: 5383427 (1995-01-01), Tuggle et al.
patent: 5617820 (1997-04-01), Beardmorre et al.
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