| 摘要 |
An arrangement for controlling and adjusting the compression ratio of internal combustion engine (10) during operation. Secondary cylinder (201) is formed in the engine head (102) and opens upon the combustion chamber (110). Secondary piston (203) is positionable by control device (503) within secondary cylinder (201). The rear most position being the lowest compression ratio. The position of the secondary piston (203), corresponding to maximum engine efficiency, is controlled by logic unit (816) operating upon such inputs as engine load correlatable to manifold pressure, engine RPM and present position of secondary piston (203). The control linkage may utilize servo or hydraulic driver to rotate shaft (301). Secondary pistons (203) may be operated in unison or individual control may be provided. An involute (302) mounted on shaft (301) pushes spring (204) loaded secondary piston (203) into secondary cylinder (201). Worm gear (602) on shaft (301) may turn a threaded bolt (603) to position secondary piston (203) or worm gear (813) may engage a gear (814) formed on the involute (815) to position involute (815). |
