Variable compression ratio engine

Details Variable compression ratio engine Variable compression ratio engine

1977-02-10

1979-04-10

Myhre, Charles J.

Internal-combustion engines

Four-cycle

Variable clearance

123 48C, 123 78AA, F02B 7504

Patent

active

041482840

ABSTRACT:
A two-part variable compression ratio cylinder is provided having inner and outer sleeves wherein relative movement between the sleeves varies the volume of the combustion chamber and hence varies the compression ratio of the engine. Hydraulic means responsive to the pressure in the combustion chamber automatically varies the position of the inner and outer sleeves to regulate the combustion chamber volume. The hydraulic controls are located entirely in the cylinder head facilitating the conversion of any internal combustion engine without altering the piston size.

REFERENCES:
patent: 752936 (1904-02-01), Vogt
patent: 1360366 (1920-11-01), Charter
patent: 1979746 (1934-11-01), Kenneweg
patent: 2206027 (1940-07-01), Butler
patent: 2414217 (1947-01-01), Weiss et al.

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