Piston-type internal combustion engine

Details Piston-type internal combustion engine Piston-type internal combustion engine

1977-05-10

1979-02-13

Lazarus, Ronald H.

Internal-combustion engines

Four-cycle

Variable clearance

123 75E, 123 9016, 123112, F02B 7504, F02D 1300

Patent

active

041389735

ABSTRACT:
A piston-type internal combustion engine is described including a variable valve timing device controlling the timing of the intake valve, a coupling between the accelerator pedal and the variable timing device for varying the timing of the intake valve in response to the movement of the accelerator pedal, and means for maintaining a substantially constant compression ratio in the cylinder notwithstanding variations in the engine output. The latter means comprises a floating piston crown which is permitted to move further inwardly into the cylinder at the end of the compression stroke when the delay in closing the intake-valve is increased, than when the delay is decreased.

REFERENCES:
patent: 1033760 (1912-07-01), Hutchinson
patent: 1307185 (1919-06-01), Claudel
patent: 1402393 (1922-01-01), Bolan
patent: 1497206 (1924-06-01), Bouton
patent: 1521854 (1925-01-01), Barthel
patent: 1623589 (1927-04-01), Granath
patent: 1819897 (1931-08-01), Johnson
patent: 2250814 (1941-07-01), Rohlin
patent: 2880712 (1959-04-01), Roan
patent: 2887993 (1959-05-01), Shallenberg
patent: 3413965 (1968-12-01), Gravasso

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