Split Pipe Clamp With Gasket for Exhaust Joint Sealing

Solution Overview

Problem

Existing pipe couplings in automobile exhaust systems face issues with mechanical strength, exhaust gas leakage, and limited service life due to overtightening and misalignment during assembly.

Innovation Solution

A split clamp design with two-part clamping parts and a gasket for pipe ends, allowing easier alignment and application, reducing stress and enhancing sealing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a unified clamping part is used, then the clamp can provide sufficient mechanical strength, but it causes stress concentration and misalignment during assembly

Engineering Contradiction:

Improvemechanical strengthVSAvoidalignment during assembly

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The clamp is divided into two separate clamping parts (first clamping part and second clamping part) that can be independently positioned and aligned on the pipe ends before being secured together. This segmentation allows each part to be easily aligned without causing stress concentration, while still providing sufficient mechanical strength when assembled.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If a unified clamping part is used, then the clamp structure is simple, but it causes overtightening and misalignment issues

Engineering Contradiction:

Improveclamp structureVSAvoidservice life

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The clamp is divided into two separate clamping parts (first clamping part and second clamping part) that can be independently positioned and aligned on the pipe ends before being secured together. This segmentation allows each part to be easily aligned without causing stress concentration, while still providing sufficient mechanical strength when assembled.

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If a split clamp design is used, then alignment and application are easier, but the clamp structure becomes more complex

Engineering Contradiction:

Improvealignment and applicationVSAvoidclamp structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The clamp is divided into two separate clamping parts (first clamping part and second clamping part) that can be independently positioned and aligned on the pipe ends before being secured together. This segmentation allows each part to be easily aligned without causing stress concentration, while still providing sufficient mechanical strength when assembled.

Inventive Principle:

Principle #1Segmentation

4Reliability

If tight clamping is applied to ensure sealing, then sealing properties improve, but stress on the clamp increases causing overtightening

Engineering Contradiction:

Improvesealing propertiesVSAvoidclamp stress resistance

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The clamp is divided into two separate clamping parts (first clamping part and second clamping part) that can be independently positioned and aligned on the pipe ends before being secured together. This segmentation allows each part to be easily aligned without causing stress concentration, while still providing sufficient mechanical strength when assembled.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A gasket is introduced as an intermediary sealing member between the clamping parts and the pipe ends. The gasket provides the necessary sealing function, allowing the clamp to maintain adequate sealing properties without requiring excessive tightening force that would cause overtightening and stress concentration.

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 split clamp design provides secure pipe connections with improved mechanical strength, reduced leakage, and extended service life by mitigating overtightening and misalignment issues.

Implementation Method 1

a gasket is provided to overlie the pipe ends within the tightened components as an addition sealing member

Methodology Applied

Scientific EffectSealing:

Implementation Method 2

split clamp components having a split or two-part clamping part

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 3

tightened components

Methodology Applied

Scientific EffectCompression: Compression

Data Source

PatentUS12372173B2Split clamp for joining pipe ends

Publication Date: 2025.07.29 RB DISTRIBUTION INC

AI summary

A split pipe coupler having a pair of coupling bands with arcuate outer portions and semicircular inner portions that have dependent sides that define an interior channel and chamfered ends. A gasket has an interior diameter dimensioned to overlap the connected pipe ends. The fastening nuts and bolts draw the pair of coupling bands together and intermesh the chamfered ends of the semicircular inner portions.