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US 11,619,151 B2Granted
Oil pan assembly
AssigneeLiebherr-Components Colmar SAS
InventorsHugues Winkelmuller, Richard Giaccardi
Life of this patent
Estimating the term…
Abstract
An internal combustion engine having at least twelve cylinders, comprising a crankcase and an oil pan assembly attached to a bottom side of an engine casing, wherein the oil pan assembly is formed by at least one casted segment. The oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine.
Claims20
An internal combustion engine, comprising:
- an engine casing and an oil pan assembly attached to a bottom side of the engine casing, wherein the oil pan assembly is formed by at least one casted segment,
- wherein the oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine, and
- wherein the at least two segments each have an equal segment height in a direction orthogonal to a first interface between an upper edge portion of the oil pan assembly and the bottom side of the engine casing.
An internal combustion engine, comprising:
- an engine casing and an oil pan assembly attached to a bottom side of the engine casing, wherein the oil pan assembly is formed by at least one casted segment,
- wherein the oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine, and wherein the at least two segments each comprise a plurality of leg portions that extend from a wall of the at least two segments, the leg portions supporting the oil pan assembly when it is placed on a ground surface.
An internal combustion engine, comprising:
- an engine casing and an oil pan assembly attached to a bottom side of the engine casing, wherein the oil pan assembly is formed by at least one casted segment,
- wherein the oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine,
- wherein at least one of the segments comprises at least one stiffening rib connecting one side wall with another side wall and/or with a bottom wall, wherein at least one stiffening rib is formed such that an oil exchange is possible from an area located adjacent to one side of the stiffening rib to an area located adjacent to another side of the stiffening rib and/or wherein one or more openings are provided between the stiffening rib and the segment from which the stiffening rib extends;
- and/or
- wherein the at least one stiffening rib is such configured that in a side view along a longitudinal direction of the engine, the stiffening rib comprises two side portions and a middle portion arranged there between, wherein at least one of the side portions reaches closer to an imaginary plane defined by a segment upper edge portion than the middle portion.
2 more elements
An internal combustion engine, comprising:
- an engine casing and an oil pan assembly attached to a bottom side of the engine casing, wherein the oil pan assembly is formed by at least one casted segment,
- wherein the oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine, and wherein the oil pan assembly comprises at least one opening, provided in a segment side wall and/or end wall, for allowing an oil exchange between an inside and an outside area of the oil pan assembly.
An internal combustion engine, comprising:
- an engine casing and an oil pan assembly attached to a bottom side of the engine casing, wherein the oil pan assembly is formed by at least one casted segment,
- wherein the oil pan assembly is formed by at least two segments, wherein the at least two segments are casted parts and are arranged next to each other in a longitudinal direction of the engine,
- wherein the oil pan assembly comprises an O-ring for sealing a first interface between an upper edge portion of the oil pan assembly and the bottom side of the engine casing, wherein the O-ring extends in a plane formed by the first interface, such as in a first groove provided in an upper edge portion of the oil pan assembly, wherein the engine comprises a third and/or a fourth molded seal, wherein the third and/or the fourth molded seal each have two seal end portions respectively being connected to the O-ring so as to seal respective transition regions, wherein a third molded seal is provided between a side surface of a crankcase of the engine casing and a side surface of a flywheel housing of the engine casing and/or wherein the fourth molded seal is provided between another side surface of the crankcase and a side surface of a front end of the engine casing, wherein the third and/or the fourth molded seal comprises at least one opening, with an O-shaped form, wherein an oil channel leads through the opening, and/or wherein the seal end portions have a flat or convex shape.
A method for manufacturing at least one internal combustion engine comprising an oil pan assembly formed by at least two segments, wherein the method comprises:
- providing a first segment, being independent from a length of the engine, wherein the first segment is identical for at least two different internal combustion engines;
- providing a second segment, being selected according to the length of the engine;
- and/or
- providing a second end segment and at least one middle segment for being arranged between the first end segment and the second end segment, wherein at least one out of the second end segment and the middle segment is selected according to the length of the engine.
1 more element
Dependencies are inferred from the claim text.