US 12,313,020 B2
Liquid-cooled internal combustion engine
Martin Zapf, Au Bei Turnau (AT); and Jürgen Gelter, Graz (AT)
Assigned to AVL LIST GMBH, Graz (AT)
Appl. No. 18/282,166
Filed by AVL LIST GMBH, Graz (AT)
PCT Filed Mar. 15, 2022, PCT No. PCT/AT2022/060075
§ 371(c)(1), (2) Date Sep. 14, 2023,
PCT Pub. No. WO2022/192930, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. A 50181/2021 (AT), filed on Mar. 15, 2021.
Prior Publication US 2024/0151192 A1, May 9, 2024
Int. Cl. F02F 1/40 (2006.01); F01P 3/02 (2006.01); F02F 1/10 (2006.01); F02F 1/14 (2006.01); F02F 1/16 (2006.01)
CPC F02F 1/40 (2013.01) [F02F 1/14 (2013.01); F02F 1/16 (2013.01); F01P 2003/028 (2013.01); F02F 2001/104 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A liquid-cooled internal combustion engine, having an inlet side and an exhaust side which are arranged on different sides of a longitudinal engine plane defined by a cylinder axis and a crankshaft axis, having a cylinder head with a top-down cooling concept with a fire deck adjoining a cylinder block and a head cooling chamber with a first head partial cooling chamber spaced from the fire deck and a second head partial cooling chamber which adjoins the fire deck of the cylinder head and is separated from the first head partial cooling chamber by an intermediate deck, wherein the first head partial cooling chamber and the second head partial cooling chamber are flow-connected to one another at least in the region of a central component by means of at least one transfer duct in the intermediate deck, having a main feed channel which is arranged in the cylinder block and is connected to the first head partial cooling chamber via a first flow transfer in the fire deck of the cylinder head and a supply channel, having at least one block cooling jacket which is flow-connected to the second head partial cooling chamber via at least one second flow transfer in the fire deck of the cylinder head and at least partially surrounds a cylinder liner, wherein the block cooling jacket has a first block partial cooling jacket which faces the fire deck and into which the second flow transfer opens, and a second block partial cooling jacket separated from the first block partial cooling jacket and arranged on a side of the first block partial cooling jacket facing away from the fire deck, wherein the first block cooling jacket is flow-connected to the second block cooling jacket by means of at least one third flow transfer arranged diametrically to the second flow transfer with respect to the cylinder axis, and wherein the second block partial cooling jacket is connected to a main discharge channel arranged in the cylinder block, wherein the first block partial cooling jacket and the second block partial cooling jacket are configured to be flowed through in succession serially.