US 11,835,013 B2
Cylinder head for an internal combustion engine and method for the production thereof
Steffen Hirschmann, Neustadt an der Aisch (DE); and Thomas Malischewski, Heilsbronn (DE)
Assigned to MAN TRUCK & BUS SE, Munich (DE)
Appl. No. 17/274,144
Filed by MAN Truck & Bus SE, Munich (DE)
PCT Filed Aug. 30, 2019, PCT No. PCT/EP2019/073192
§ 371(c)(1), (2) Date Mar. 5, 2021,
PCT Pub. No. WO2020/048883, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 10 2018 121 723.4 (DE), filed on Sep. 6, 2018.
Prior Publication US 2021/0348580 A1, Nov. 11, 2021
Int. Cl. F02F 1/28 (2006.01); F02F 1/36 (2006.01); F02F 1/42 (2006.01); F02F 1/24 (2006.01)
CPC F02F 1/36 (2013.01) [F02F 1/4235 (2013.01); F02F 1/4264 (2013.01); F02F 2001/244 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cylinder head for covering a combustion chamber of an internal combustion engine, comprising:
a fluid conducting duct for feeding in a fluid to or discharging a fluid from the combustion chamber;
a cooling duct for a cooling fluid for cooling the cylinder head; and
at least one material cutout for thermal insulation, wherein the at least one material cutout is formed in a main body of the cylinder head and is arranged between the fluid conducting duct and the cooling duct, such that the at least one material cutout thermally insulates the fluid conducting duct from the cooling duct;
wherein the at least one material cutout is arranged such that the at least one material cutout is separated from the fluid conducting duct by way of the main body, and
wherein the at least one material cutout has a plurality of cutout regions which:
a) in each case have a ring segment-shaped cross section and together surround the fluid conducting duct in an annular manner; or
b) are in each case of a sleeve segment-shaped configuration and together surround the fluid conducting duct in a sleeve-shaped manner.