Sealing arrangement
AssigneeLiebherr-Components Colmar SAS
InventorsRichard Giaccardi, Hugues Winkelmuller
Life of this patent
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Abstract
Sealing arrangement for an internal combustion engine for sealing at least one interface of an oil pan assembly, comprising an O-ring for sealing a first interface between an upper edge portion of the oil pan assembly and a bottom side of an engine casing, wherein the O-ring extends in a plane formed by the first interface. The sealing arrangement further comprises at least one molded seal for sealing a second interface between two connectable parts of the engine, wherein the molded seal comprises two seal end portions comprising sealing areas to be sealingly connected to the O-ring.
Claims21
A sealing arrangement for an internal combustion engine for sealing at least one interface of an oil pan assembly, comprising:
- an O-ring for sealing a first interface between an upper edge portion of the oil pan assembly and a bottom side of an engine casing, wherein the O-ring extends in a plane formed by the first interface;
- and
- at least one molded seal for sealing a second interface between two connectable parts of the engine, wherein the molded seal comprises two seal end portions comprising sealing areas to be sealingly connected to the O-ring,
- wherein the O-ring has the same cross-section over its entire extension, and wherein the sealing areas are provided on a front end side of the seal end portions and contact a side surface of the O-ring.
A sealing arrangement for an internal combustion engine for sealing at least one interface of an oil pan assembly, comprising:
- an O-ring for sealing a first interface between an upper edge portion of the oil pan assembly and a bottom side of an engine casing, wherein the O-ring extends in a plane formed by the first interface;
- at least one molded seal for sealing a second interface between two connectable parts of the engine, wherein the molded seal comprises two seal end portions comprising sealing areas to be sealingly connected to the O-ring;
- a first groove provided in the upper edge portion of the oil pan assembly or in the bottom side of the engine casing;
- and
- a second groove provided in at least one of the seal end portions of the at least one molded seal for retaining the O-ring, the second groove extending in a direction transverse to a longitudinal extension of the at least one molded seal,
- wherein the O-ring extends in a groove arrangement formed by the first groove and the second groove.
A sealing arrangement for an internal combustion engine for sealing at least one interface of an oil pan assembly, comprising:
- an O-ring for sealing a first interface between an upper edge portion of the oil pan assembly and a bottom side of an engine casing, wherein the O-ring extends in a plane formed by the first interface;
- and
- at least one molded seal for sealing a second interface between two connectable parts of the engine, wherein the molded seal comprises two seal end portions comprising sealing areas to be sealingly connected to the O-ring,
- wherein the molded seal further comprises a shoulder portion that protrudes from the molded seal transverse to a longitudinal extension of the molded seal and is retained in a retaining portion provided in one of the connectable parts of the engine such that when the O-ring is pressed against the sealing areas of the at least one molded seal, the shoulder portion is pressed against a blocking surface of the retaining portion so as to block a displacement of the seal end portion.
Dependencies are inferred from the claim text.