Shock Absorber Multiple Tank Segmentation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional shock absorbers with a single tank integrally attached to a cylinder face challenges in mounting due to excessive projection, limiting their application in vehicles with small attachment spaces, as the tank's volume and diameter are insufficient to reduce the projection amount effectively.

Innovation Solution

The shock absorber incorporates multiple tanks, where one tank is compacted into a liquid chamber filled with liquid and an air chamber, and the other tanks have sub-air chambers, allowing for a smaller overall size and reduced projection, enabling increased mountability by integrating the tanks with the cylinder to form a single component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of stationary object

If a single tank is integrally attached to the cylinder to provide sufficient volume, then the tank volume is adequate, but the projection amount of the tank from the cylinder increases excessively

Engineering Contradiction:
Improvetank volumeVSAvoidprojection amount
Core Design Contradiction:
Volume of stationary objectVSLength of stationary object

Solution Approach 1:

The patent divides the single tank into multiple tanks (first tank and second tank) that are integrally attached to the cylinder. By segmenting the tank volume across multiple smaller units arranged around the cylinder, the overall projection amount is reduced while maintaining the total required volume for damping fluid storage.

Inventive Principle:
Principle #1Segmentation

2Length of stationary object

If the tank diameter is reduced to suppress the projection amount, then the projection amount decreases, but the tank volume becomes insufficient

Engineering Contradiction:
Improveprojection amountVSAvoidtank volume
Core Design Contradiction:
Length of stationary objectVSVolume of stationary object

Solution Approach 1:

Instead of increasing the diameter of a single tank (one-dimensional solution), the patent distributes multiple smaller tanks around the cylinder in a radial arrangement. This transforms the volume problem from a single large diameter requirement into a multi-unit configuration where the sum of smaller volumes achieves the required total volume while keeping individual projection amounts small.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If a single tank is used, then the structure is simple, but the mountability in vehicles with small attachment spaces is limited

Engineering Contradiction:
Improvetank structureVSAvoidmountability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The shock absorber employs multiple tanks (first tank and second tank) integrally attached to the cylinder, creating a segmented configuration that reduces the projection amount in any single direction. This segmentation enables the shock absorber to fit within the limited attachment spaces of various vehicle types, including motorcycles, while maintaining the necessary fluid volume for proper damping operation.

Inventive Principle:
Principle #1Segmentation

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

This configuration reduces the projection amount of the tanks from the cylinder, enhancing the shock absorber's mountability, particularly in vehicles with limited space, while maintaining sufficient tank volume and adjustable damping forces.

Implementation Method 1

an air chamber filled with gas, and sub-air chambers communicated with the air chamber in the interiors of the other tanks

Methodology Applied
Scientific EffectGas compression and expansion: Compression

Implementation Method 2

a liquid chamber communicated with the working chamber and filled with a liquid

Methodology Applied
Scientific EffectHydraulic damping: Viscous Damping

Data Source

PatentUS10946927B2Shock absorber
Publication Date: 2021.03.16 KYB MOTORCYCLE SUSPENSION CO LTD
  • US10946927B2 patent drawing
  • US10946927B2 patent drawing
  • US10946927B2 patent drawing

AI summary

A shock absorber includes a cylinder including a working chamber therein; a rod configured to be axially movably inserted into the cylinder; and a plurality of tanks configured to be integrally attached to the cylinder, wherein an interior of one of the tanks is comparted into a liquid chamber configured to be communicated with the working chamber and filled with liquid and an air chamber filled with gas, and a sub-air chamber configured to be communicated with the air chamber is formed in the other tank.