US 12,078,078 B2
Cylinder head with integrated turbocharger
Douglas Trudeau, Lake Orion, MI (US); Michael P Schmidt, Highland, MI (US); Philip J Insalaco, Denton, MI (US); Brian Jacobs, Macomb, MI (US); Phillip Bunker, Southfield, MI (US); and Matthew T Barker, Lake Orion, MI (US)
Assigned to FCA US LLC, Auburn Hills, MI (US)
Filed by FCA US LLC, Auburn Hills, MI (US)
Filed on Sep. 27, 2022, as Appl. No. 17/953,514.
Claims priority of provisional application 63/252,748, filed on Oct. 6, 2021.
Prior Publication US 2023/0032347 A1, Feb. 2, 2023
Int. Cl. F01D 25/24 (2006.01); F01D 9/02 (2006.01); F02F 1/24 (2006.01)
CPC F01D 25/243 (2013.01) [F01D 9/026 (2013.01); F02F 1/24 (2013.01); F05D 2220/40 (2013.01); F05D 2230/21 (2013.01); F05D 2240/14 (2013.01); F05D 2240/15 (2013.01); F05D 2250/14 (2013.01); F05D 2260/98 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A cylinder head assembly for an internal combustion engine, the assembly comprising:
a cast cylinder head;
a turbocharger housing, including a compressor housing and turbine housing, integrally cast with the cylinder head;
a turbocharger cartridge assembly configured to be inserted into the turbocharger housing and including a shaft coupled between a compressor wheel and a turbine wheel; and
a compressor cover configured to couple to the compressor housing and define a compressor inlet and at least partially define a compressor diffuser passage;
wherein the cartridge assembly includes a housing having a diffuser flange extending outwardly therefrom, the diffuser flange including a front surface and an opposite contoured volute surface,
wherein the compressor diffuser passage is at least partially defined by the compressor cover and the diffuser flange front surface, and
wherein a compressor volute is at least partially defined by the diffuser flange contoured volute surface and a contoured inner surface of the compressor housing.