VCRE SI-CI SERIES (Patent Pending) Variable Compression Ratio Engine Has been developed for Carrying out extensive Research work in the field of Engine Technology enhancement & for carrying out Analysis related to Alternative Fuel Developmentfor S.I. & C.I. engines.
Type - Single Cylinder, Four-Stroke, Spark / Compression Ignition In this engine, the compression ratio can be varied from by means of a system provided on the outside of the engine. Raising or lowering the total head assembly including the valves, camshaft etc.
varies the compression ratio. The linear movement of the head assembly can be measured by a micro meter and this reading can be used directly to calculate compression ratio directly by means of Graph & Table provided.
The engine is provided with a pressurised water cooling system. Compression ratio is easily adjusted rotating the driving pinion provided to give drive to move the cylinder up or down a pre - set distance, measured by a micro - meter attachment. Compression ratio is adjustable even when the engine is running. The flywheel is calibrated in Degrees to allow accurate measurement of ignition timing, using stroboscopic light method. An adjustment is provided so that the ignition timing, can be adjusted while the engine is running. The head assembly is moved up & down by means of a precise fine threaded screw and Nut arrangement. The assembly can be locked at required compression ratio, by means of a slotted Guide Lock and Locking Pin arrangement.