| 摘要 |
Conventional cylinders of internal combustion engines comprise a cylinder chamber of constant size so that there is an unchangeable compression chamber between the top dead center position of the piston and the cylinder head. To be able to vary the size of the cylinder chamber and thus the volume of the compression chamber and to thereby adjust a respectively optimum compression, the cylinder head of the cylinder of the invention has arranged therein an insert whose position is hydraulically adjustable, the compression chamber being enlarged by lifting the insert, while it is reduced by lowering the insert. The position of the insert is controlled through a microprocessor in conjunction with a lambda probe.
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