For internal-combustion vehicles to remain robust, components must be simplified and costs 

reduced to make them competitive with electric vehicles.  According to foreign media reports, 

car manufacturer Stellantis has released a new casting patent, giving full play to this concept.  

The casting includes a cylinder head and a turbocharger body.  Instead of just casting the 

exhaust manifold into the cylinder head, the company wants to integrate the entire turbocharger. 

The patent was only published on March 9, but was filed with the US Patent and Trademark 

Office in May 2020.  As mentioned above, such systems are designed to reduce the number 

of components needed for turbocharged engines and reduce costs.  To achieve this savings, 

many turbocharging systems are cast directly into the cylinder head. 

The core of the turbocharger, including the bearings, shafts, turbine and compressor impeller 

itself, belongs to a separate cylinder part.  The turbocharger will be serviced as a cylinder by

replacing internal parts.  Therefore, when the turbocharger fails, there is no need to replace 

the cylinder head (i.e., the cylinder head on the V-engine). 

In brief, the patent places the inactive part of the exhaust gate in the same casting as the 

inactive part of the compressor side;  Moving parts that may need to be replaced under 

certain circumstances are removable.  The design eliminates some gaskets, fasteners and 

matching pipes.