Designed and build by INNengine, a startup company based in Spain. “At INNengine we have patented and developed two disruptive engine concepts: the e-REX and the REX-B.” Both e-REX and REX-B have INNengine patented 1Stroke engine technology. This means they have 4x more power events per revolution than a conventional 4Stroke and twice more than a 2S.INN Engine E-REX, has a capacity of 0.5 liters and a power output of 120 horsepower, all while weighing just 35kg.
source.image: INNengine – Juan Garrido Requena
The e-REX comes to replace conventional 4Stroke engines in all current applications and more. It’s state of the art technology lowers consumption&emissions compared to any modern 4Stroke engine while being 4x more powerful and compact. After hundreds of hours of testing and having powered a demo car, our e-REX engine has achieved TRL6 and we are on track of achieving TRL9.
It would be light and small, to leave extra room for the batteries and motors.It would have 0 vibration, so it does not interfere with the smooth electric experience.And since electric vehicles are expensive enough as they are, it would have to be simple and cheap to manufacture.
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In other words, the ideal engine for range extender applications would combine the efficiency and low emissions of a state of the art 4 stroke engine with the simplicity, compacity and power of a 2 stroke one.The e-REX is 55% smaller and 70% lighter than any 4-stroke ICE, thanks to a design that is devoid of crankshaft, valves, camshaft, or cylinder head.