US 12,460,599 B2
Crankcase and internal combustion engine with such a crankcase
Marco Sliwa, Siegburg (DE)
Assigned to DEUTZ Aktiengesellschaft, Cologne (DE); and Deere & Company, Moline, IL (US)
Filed by DEUTZ Aktiengesellschaft, Cologne (DE); and Deere & Company, Moline, IL (US)
Filed on Jan. 30, 2024, as Appl. No. 18/426,910.
Claims priority of application No. 102023000277.1 (DE), filed on Jan. 31, 2023.
Prior Publication US 2024/0254941 A1, Aug. 1, 2024
Int. Cl. F02F 1/00 (2006.01); F02F 7/00 (2006.01)
CPC F02F 7/0007 (2013.01) [F02F 7/0021 (2013.01); F02F 2200/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A crankcase for an internal combustion engine comprising:
a cast body made of a cast material;
a cylinder bore formed into the cast body along a cylinder axis, the cylinder bore being delimited by a cylinder track; and
a cylinder run-in surface of the cast body, the cylinder track merging into the cylinder run-in surface,
the cylinder track being formed by the cast material in a machined state, and
the cylinder run-in surface being formed by the cast material in an unmachined state,
wherein the cylinder run-in surface defines a funnel recess of the cast body, which merges into the cylinder bore and which widens in a direction of the cylinder axis away from the cylinder bore in a funnel shape.