FCA patent combines turbo and cylinder head into one piece.
Turbochargers help automakers push more horsepower out of efficient small displacement engines, but these forced induction systems do add weight, complexity, and additional components to the equation. Stellantis’ recent patent filing aims to alleviate some of the downsides involved with current turbo setups. The patent was filed by FCA USA back in September 2022, but was officially published last week.
The compressor and turbine housings are entirely integrated into the head, with the shaft and wheels being added by way of a cartridge during automated assembly. Internal oil channels can feed the turbo without running lines, which also cuts back on material usage. Reducing the number of gaskets and seals could also have long-term reliability benefits, though that will have to be seen. There is a heat shield in place, but thermal management will be an important part of this design’s viability.
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