High Compression ICE Claiming 60% Efficiency Hike

A start-up claims to have constructed a oil fueled ICE that boosts like-for-like performance by nearly 60% even before it has built a website.

The as yet unheard of Darlema Corp of Lodi, New Jersey, says its combustion with pre-stage compression (CWPSC) engine can double fuel economy and cut carbon emissions by half. It also claims its spark ignition engine achieves an efficiency rating of 53-57% at the vehicle wheel, uses conventional fuels, doesn’t have a throttle and does not use a turbo.

Headlining the engine’s unique selling point is a safe compression ratio of 30:1, around three times that of the average gasoline motor. The company claims its demonstration unit achieved 60mpg (72mpg UK) under load at 62mph. CO2 emissions ranged between 78-94 g/km, 50% less than current engines at 17.5 Kwh.

Similar claims where made by university researchers at Brunel University London in the UK in July. Their solution employed a concept dubbed is the first to begin researching future powertrain concepts using automotive engineering specialist Camcon Automotive’s single cylinder intelligent (SCI) valve technology (pictured above). The system uses the company’s pioneering intelligent valve technology (iVT) and is intended to speed up automaker and Tier 1 engine development, helping meet upcoming emissions regulations while also reducing cost.

Based on iVT, which replaces the traditional camshaft on a gasoline engine with a set of digitally controlled electric actuators, SCI operates on both inlet and exhaust valves allowing researchers to focus on crucial combustion and after-treatment strategies to reducing emissions and improving fuel consumption.

Meanwhile, Matt Mulhern, Darlema’s vice-president, said its engine manages the performance claims by controlling the air temperature and pressure during intake. He added that the technology could help the automotive industry meet the original federal fuel consumption and carbon emission mandates with minimal infrastructural changes.

Mulhern concluded that the engine’s carbon emissions are lower than that achieved by electric powertrains when factoring in emissions generated by producing the electricity with the current high fossil fuel mix.

— Paul Myles is a seasoned automotive journalist based in London. Follow him on Twitter @Paulmyles_


One comment

  1. Avatar Ann 12th November 2019 @ 6:47 am

    Everything Darlema Corp. claims is true, fantastic engine!

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