Varying geometric compression ratio engine

Details Varying geometric compression ratio engine Varying geometric compression ratio engine

1981-05-21

1984-05-22

Cuchlinski, Jr., William A.

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

123 4131, 123 78R, 123 9016, 123 9057, 123169PA, F02B 7504

Patent

active

044494890

ABSTRACT:
An automotive engine having an automatically adjusted geometric compression ratio, wherein the charge is compressed to maximum permissible values under all throttle settings. This is achieved by a cylindrical valve carrier, raised or lowered by a screw jack, while valve stem contact is maintained by a fast acting hydraulic valve actuator. The compact arrangement provides an engine profile which is not significantly taller than a standard overhead cam engine.

REFERENCES:
patent: 808336 (1905-12-01), Bogert
patent: 1504101 (1924-08-01), Davidson
patent: 2583499 (1952-01-01), Teegen
patent: 3728990 (1973-04-01), Lamdredi et al.

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