Internal combustion engine

Details Internal combustion engine Internal combustion engine

1981-04-17

1983-08-23

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 9018, 123 9032, F02D 1306

Patent

active

043997848

ABSTRACT:
An internal combustion engine having at least one cylinder, the at least one cylinder having intake and exhaust ports, the engine comprising: a slidably and rotatably disposed camshaft; a cam and follower arrangement including cam lobes disposed on the camshaft, for controlling the intake and exhaust ports, each of the cam lobes having multiple lift surfaces which are shaped to provide at least two different periods of time during which the intake and exhaust ports are open; and, apparatus for axially displacing the camshaft during operation of the engine, whereby the different periods of time may be selected in accordance with engine or vehicle speed.

REFERENCES:
patent: 2528983 (1950-11-01), Weiss
patent: 3638624 (1972-02-01), O'Grady
patent: 3986484 (1976-10-01), Dyer

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