2009 Geneva Auto Display: Lotus Unveils Omnivore Changeable Compression Motor Concept
Lotus is using the 2009 Geneva Auto Display to showcase a novel variable-compression motor it calls the Omnivore. Designed to sprint on alcohol-based fuels as admirably as gasoline, the single-cylinder concept motor uses manage injection and a two-stroke operating round to increase its efficiency.
An adjustable puck at the summit of the combustion assembly is second-hand to change the compression and according to Geraint Castleton-White, Skull of Powertrain at Lotus Engineering, the Omnivore has possible as a four-stoke, producing motor.
The non-attendance of poppet valves in two-stroke engines makes the incorporation of a changeable compression proportion organized whole more straightforward. Our investigation into these systems on four-stroke engines has led us to the conclusion that while thermodynamically it is a sought-after technology to embody, almost it isvery hard, especially attractive into regard producing practicability. This two-stroke motor could work these pragmatic difficulties and simultaneously permits a much larger scope of compression proportion adjusting, with the possible to execute at a much higher effectiveness when operation on renewable fuels, according to Castle-White.
