Adhesive-Backed Gasket Assembly for Accurate Grommet Installation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The process of individually placing grommets between an engine block and a cylinder head is time-consuming and prone to errors, with a high risk of grommet loss during installation.

Innovation Solution

A gasket assembly comprising a gasket body with an adhesive-backed film and bonded grommets, allowing for simultaneous placement and secure retention of the gasket body and grommets on the engine block, reducing the likelihood of loss and simplifying the installation process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If grommets are placed individually, then installation precision can be controlled, but installation time increases and risk of loss increases

Engineering Contradiction:
Improvegrommet placement precisionVSAvoidinstallation speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The grommets are pre-positioned on the adhesive-backed film before the gasket body is installed. This preliminary positioning ensures correct placement while allowing the entire assembly to be installed as one unit, thereby improving installation speed without sacrificing precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The grommets, adhesive-backed film, and gasket body are combined into a single integrated assembly. This merging allows all components to be installed simultaneously in one step, dramatically improving productivity while the adhesive ensures precise positioning is maintained.

Inventive Principle:
Principle #5Merging (Combining)

2Loss of substance

If grommets are placed individually, then material cost is reduced, but risk of loss and time consumption increase

Engineering Contradiction:
Improvegrommet loss riskVSAvoidinstallation time
Core Design Contradiction:
Loss of substanceVSLoss of time

Solution Approach 1:

The grommets are attached to the adhesive-backed film which is then bonded to the gasket body, creating a single integrated assembly. This merging ensures that all grommets are retained with the gasket body during handling and installation, eliminating the risk of loss while reducing installation time since no separate placement steps are needed.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If grommets are bonded to adhesive-backed film, then retention reliability improves, but device complexity increases

Engineering Contradiction:
Improvegrommet retention reliabilityVSAvoidassembly structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The adhesive-backed film serves as an intermediary between the grommets and the gasket body. This intermediary layer provides a simple yet effective bonding mechanism that secures the grommets reliably without requiring complex mechanical retention structures, thus maintaining low device complexity while achieving high retention reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The gasket assembly streamlines the installation process, reducing the risk of grommet loss and enabling mass production with reduced costs, while ensuring proper alignment and sealing functionality.

Implementation Method 1

a plurality of grommets (36) bonded to a sticky face (40) of the adhesive-backed film (34)

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS11353112B2Gasket and grommet installation assembly
Publication Date: 2022.06.07 FEDERAL MOGUL MOTORPARTS LLC
  • US11353112B2 patent drawing
  • US11353112B2 patent drawing
  • US11353112B2 patent drawing

AI summary

A gasket assembly includes a gasket body, an adhesive-backed film, and a plurality of grommets. The gasket body includes a first face, and the adhesive-backed film includes a sticky face bonded to the first face of the gasket body. The grommets are bonded to the sticky face of the adhesive-backed film.