US 12,442,347 B2
Piston and an internal combustion engine system
Jan Eismark, Gothenburg (SE); Tommy Simonsson, Stenungsund (SE); Rickard Ehleskog, Hisings Backa (SE); and Gustavo Hindi, Surte (SE)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Appl. No. 18/718,339
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
PCT Filed Dec. 17, 2021, PCT No. PCT/EP2021/086558
§ 371(c)(1), (2) Date Jun. 10, 2024,
PCT Pub. No. WO2023/110130, PCT Pub. Date Jun. 22, 2023.
Prior Publication US 2025/0043745 A1, Feb. 6, 2025
Int. Cl. F02F 3/26 (2006.01); F02D 19/02 (2006.01); F02M 21/02 (2006.01)
CPC F02F 3/26 (2013.01) [F02D 19/021 (2013.01); F02M 21/0206 (2013.01); F02M 21/0248 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A piston for an internal combustion engine (ICE), operable on a gaseous fuel, said piston having a piston top end comprising a piston bowl for receiving at least one gaseous fuel jet from a fuel injector of the ICE, said piston bowl having a bottom section and a circumferential side section extending in an axial direction between the bottom section and a piston top end surface, wherein said bottom section comprises a protrusion segment configured to guide said at least one gaseous fuel jet,
wherein said protrusion segment further extends between spaced apart regions of the circumferential side section, and
wherein the extension of the protrusion segment in the axial direction does not exceed the piston top end upper surface of the piston, as defined by the circumferential side section.