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INNengine Revolutionizes Two-Stroke Engines with Clean Technology

2/10/2026

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Summary

Story summary

INNengine, based in Granada, Spain, developed two engines: the e-Rex and Rex-B.
The e-Rex features eight pistons and four cylinders, enabling simultaneous intake, exhaust, and compression.
The e-Rex uses INNengine's '1Stroke' technology, combining combustion and exhaust in one stroke and intake and compression in another.
The company aims to redefine two-stroke engines by promoting cleaner operation without traditional oil burning.

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Story summary

INNengine, based in Granada, Spain, developed two engines: the e-Rex and Rex-B.
The e-Rex features eight pistons and four cylinders, enabling simultaneous intake, exhaust, and compression.
The e-Rex uses INNengine's '1Stroke' technology, combining combustion and exhaust in one stroke and intake and compression in another.
The company aims to redefine two-stroke engines by promoting cleaner operation without traditional oil burning.