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McLaren details the 4.0-liter V8 Senna

Megane R.S Video

Ahead of it public debut at the Geneva International Motor Show next month, McLaren has released further information on the Senna. Fitted with a 4.0-liter twin-turbocharged V8 – McLaren’s most powerful IC engine ever produced for a road car – the limited release hypercar will develop 800ps and 800Nm.

Ford Ranger returns to the USA with a 2.3-liter EcoBoost engine


Fitted with the 2.3-liter EcoBoost engine taken from the Focus RS, the 2019 Ford Ranger marks the OEM’s return to America’s mid-size truck segment. Paired with a 10-speed automatic transmission, Ford promises torque comparable to a V6 and the efficiency of a four-cylinder.

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The next issue of Engine Technology International will bring you an extended HCCI technology feature, but will this innovative powertrain development ever jump from concept to mainstream production?


Ricardo develops liquid nitrogen-cooled split-cycle engine

After 10 years of development Ricardo, in collaboration with spin-off company Dolphin N2, has unveiled its CryoPower engine technology concept as the company looks to achieve superior thermodynamic performance.

The all-new liquid nitrogen cooled ‘split-cycle’ engine promises 20% greater fuel economy and a 30% reduction in CO₂ emissions.

The technology, which is designed for heavy-duty applications, uses a separate induction and compression cylinder to recover wasted exhaust heat and produce working gas after the end of compression. The compression process is carried out isothermally, cooled via the injection of a small amount of liquid nitrogen.

The liquid nitrogen therefore acts as both a coolant and an additional energy vector, which offsets fuel requirements. This means the internal thermal efficiency of the IC is improved in comparison with today’s state-of-the-art engines.

Utilizing either renewable or traditional fuels, the combustion process delivers heat energy back to the chilled and compressed intake air, thus helping to achieve improvements in fuel economy, reduced CO₂ and other emissions.

“The development of the conventional heavy-duty engine is reaching the point of diminishing returns with regard to fuel efficiency and CO₂; to go significantly beyond the current state of the art requires a completely new approach,” said Simon Brewster, CEO of Dolphin N2.

“CryoPower offers a step-change improvement in both fuel efficiency and operating fuel cost, and the prior development of its crucial enabling technologies has significantly reduced development risk.”

To further the CryoPower technologies, Ricardo has formed the company Dolphin N2, which will lead the project and are looking for further investment to enable commercial development.

Written by Sam Petters

7 February 2018


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