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Oil pan assembly including laminate and clinch nut

A technology of rivet nut and oil pan, applied in oil pan, lubricating parts, engine components, etc., can solve the problems of unsuitable aluminum layer laminate, aluminum layer failure, complexity and other problems

Active Publication Date: 2019-01-18
MATERIALS SCI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a complex design and requires the seal between the bolt flange and the bottom surface of the sump to be the primary seal
[0006] However, these methods are generally not suitable for laminates with aluminum layers
For example, when a laminate includes a polymer layer between two aluminum layers, it can be difficult to projection weld a nut, and due to the applied moments (eg, during removal or insertion of a drain plug), the thinner aluminum layer may fail
For example, projection welding on aluminum laminates often results in joining only a single aluminum layer, which is weak due to the thinness of the aluminum layer (relative to the total thickness of the aluminum laminate)
Also, the aluminum layer may be too thin to be machined to provide the threaded opening

Method used

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  • Oil pan assembly including laminate and clinch nut
  • Oil pan assembly including laminate and clinch nut
  • Oil pan assembly including laminate and clinch nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The oil sump assembly includes a container having a cavity for containing fluid and a drain attached to the container to remove oil from the cavity. The container preferably comprises a composite material having a polymer layer to improve one or more NVH properties. The drain member preferably comprises or consists essentially of a rivet nut. The discharge member may be sealed by one or more seals, preferably using primary and secondary seals. The discharge of the fluid is preferably through the opening of the rivet nut. The oil pan assembly may also include a sealing member (eg, a drain plug) for reversibly sealing the drain member.

[0043] container:

[0044] The oil pan assembly includes a container (eg, an oil pan) having a cavity for holding a quantity of oil. The container may have one or more openings for circulating oil to the mechanical components to control the temperature of the mechanical components. It may be necessary to periodically drain the oil fr...

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PUM

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Abstract

The teachings herein are related to assemblies, such as oil pan assemblies, including a laminate bottom portion and a nut attached to the laminate bottom portion. The nut may provide a sealable opening to a cavity of the assembly. The laminate bottom portion preferably includes a polymeric layer sandwiched between two metallic layers. The nut preferably is a clinch nut.

Description

technical field [0001] The teachings herein relate to an assembly, such as an oil pan assembly, that includes a laminated bottom portion and a nut attached to the laminated bottom portion. The nut may provide a sealable opening to the cavity of the assembly. The laminated bottom part preferably comprises a polymer layer sandwiched between two metal layers. Preferably, the nut is a rivet nut. Background technique [0002] Drain plugs are provided in the various components to drain fluid from the container and then close the drain. This is usually done by welding a nut to the bottom part of the container. When the container is formed from steel, steel nuts are usually spot welded to the container. When the container comprises a one-piece aluminum container (eg, formed from aluminum sheet), the nut is typically projection welded to the container. As another example, the assembly may include an aluminum bottom portion machined from cast aluminum to provide a threaded openin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/00F01M11/04
CPCF01M11/0004F01M11/0408F01M2011/0091F01M2011/0008F01M2011/0416F01M2011/0087F01M2011/0012
Inventor B·J·塔利斯J·斯库诺弗
Owner MATERIALS SCI CORP
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