Modified four stroke cycle and mechanism

Details Modified four stroke cycle and mechanism Modified four stroke cycle and mechanism

1989-05-03

1990-06-19

Okonsky, David A.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123311, F02B 7526

Patent

active

049343440

ABSTRACT:
An internal combustion engine is disclosed with a modified four stroke cycle which takes place during a single crankshaft revolution, wherein a reciprocating piston moves through a compression stroke and power expansion stroke, each having a short duration, and an exhaust stroke and intake stroke, each having a relatively long duration compared to the intake and power strokes. The piston stroke distance for each of the aforementioned strokes is equal, defined by, in the preferred embodiment, a first and second cam lobe on the crankshaft, wherein one lobe extends over less of the crankshaft, radial periphery than the other lobe. Preferably, the lobe defining the compression and power strokes act during only 90.degree. of crankshaft revolution while the other lobe act during the remaining 270.degree. of revolution.

REFERENCES:
patent: 1528164 (1925-03-01), Nordwick
patent: 1624269 (1927-04-01), Marchetti
patent: 1728363 (1929-09-01), Rightenour
patent: 2004498 (1935-07-01), Dassett
patent: 2340010 (1944-01-01), Miller
patent: 3025840 (1962-03-01), Casini
patent: 3735741 (1973-05-01), Hatz
patent: 4301695 (1981-11-01), Reiher
patent: 4517931 (1985-05-01), Nelson

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