Complex machined castings specialist Grainger & Worrall has launched a white paper detailing how the need for greater thermal efficiency in internal combustion engines (ICEs) is driving even greater innovation in the field of high-precision engine casting.
Entitled ‘The heat is on’, the white paper, written by Grainger & Worrall’s technical director, Keith Denholm, follows on from the company’s pioneering work with automotive OEMs to design a new generation of engines capable of operating in the 40-50% thermal efficiency range.

Keith Denholm explained: “Enhancements in thermal efficiency – the percentage of heat energy transformed into engine power - have traditionally moved slowly in ICEs. Even as recently as 2013, engines were failing to achieve anything above 30%, the normally aspirated F1 state of efficiency.
“The UK is set to ban all new diesel and petrol cars from 2040 so to meet the relentless desire for greater efficiency, Grainger & Worrall’s prototype division has been investigating numerous ways to improve thermal efficiency. This includes exploring new materials, coatings, production processes and additive manufacturing techniques.”

For more information and to download the white paper, visit:

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