Internal-combustion engines – Four-cycle – Variable clearance
Patent
1978-02-09
1980-01-08
Myhre, Charles J.
Internal-combustion engines
Four-cycle
Variable clearance
123 48A, 123 48D, 123 78R, 123 78D, F02B 7504
Patent
active
041822889
ABSTRACT:
A mixture-compressing, spark-ignited internal combustion engine has a combined throttle and compression control. The engine has at least one main piston sliding in a main cylinder and driving a crankshaft, and an auxiliary piston sliding in an auxiliary cylinder, which auxiliary piston is driven at half the frequency of the crankshaft by a drive shaft activated by a drive means coupled to the crankshaft. The compression chamber formed by the auxiliary piston is connected with the compression chamber formed by the main piston, and a control device is provided for modification of the phase piston of the auxiliary piston relative to the main piston so as to achieve a compression chamber volume at compression top dead center of the main piston which is variable as a function of the operating parameters of the internal combustion engine.
REFERENCES:
patent: 1914707 (1933-06-01), Wolf
patent: 2106099 (1938-01-01), Jenkins
patent: 2369738 (1945-02-01), Johnson
patent: 2382362 (1945-08-01), Weinreb
patent: 2666421 (1954-01-01), Ring
patent: 3254636 (1966-06-01), Faust
patent: 3741175 (1973-06-01), Rouger
patent: 3961607 (1976-06-01), Brems
Myhre Charles J.
Reynolds David D.
Volkswagenwerk Aktiengesellschaft
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