An interesting patent has been filed by Toyota for an engine with variable compression. The patent is for an engine with variable length connecting rods. The connecting rod features two hydraulic ...

Here's the equipment for the two cc'ing operations. Arrow indicates rubber Oring. Syringe eases removal of alcohol. Determining the compression ratio of an automobile engine is no easy task.

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...