Hydraulic Mount With Partitioned Upper Chamber for Dual Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hydraulic mounts for vehicles face challenges in achieving both forward-rearward and upward-downward damping performance while maintaining a simple structure, leading to increased complexity, cost, weight, and potential fluid leakage, as well as compromised insulation and durability.
Innovation Solution
A hydraulic mount design featuring a single orifice assembly and a partitioned upper fluid chamber into two separate chambers, utilizing a main rubber with a partition wall and a diaphragm to achieve both forward-rearward and upward-downward damping through a simplified internal structure, reducing the number of fluid chambers and orifice assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional hydraulic mount uses a single fluid chamber and single orifice assembly, then the structure is simple, but it cannot achieve both forward-rearward and upward-downward damping performance
Solution Approach 1:
The upper fluid chamber is partitioned into two separate chambers (first upper fluid chamber and second upper fluid chamber) using a partition wall extending from the main rubber. This segmentation allows independent fluid flow control for forward-rearward and upward-downward directions, enabling dual damping performance while maintaining a single orifice assembly structure
Solution Approach 2:
The single orifice assembly is designed to serve multiple functions by controlling fluid flow between different chamber combinations. The orifice assembly manages both forward-rearward damping (through first upper fluid chamber to lower fluid chamber flow) and upward-downward damping (through second upper fluid chamber to lower fluid chamber flow), making one component perform multiple damping functions
2Adaptability or versatility
If a hydraulic mount uses multiple orifice assemblies and fluid chambers to achieve dual damping, then damping performance is improved, but weight increases
Solution Approach 1:
Multiple damping functions are merged into a single orifice assembly. Instead of using separate orifice assemblies for forward-rearward and upward-downward damping, the invention combines both functions into one orifice assembly that controls fluid flow between different chamber configurations, thereby reducing the number of components and overall weight
3Adaptability or versatility
If a hydraulic mount uses multiple orifice assemblies and fluid chambers to achieve dual damping, then damping performance is improved, but the number of parts increases leading to higher cost and potential fluid leakage
Solution Approach 1:
The partition wall segments the upper fluid chamber into two chambers while maintaining a single orifice assembly. This segmentation strategy achieves functional differentiation without proportionally increasing the number of major components, thus avoiding the exponential increase in complexity and potential leakage points that would result from adding multiple complete orifice assemblies
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 proposed design effectively addresses the need for dual damping performance with improved insulation, reduced complexity and weight, enhanced durability, and lower costs, while maintaining robustness and preventing fluid leakage.
Implementation Method 1
damping force is generated as a fluid filled under a main rubber (an insulator) flows through a channel between an upper fluid chamber and a lower fluid chamber
Implementation Method 2
an engine mount for supporting the engine and reducing noise and vibration transmitted from the engine is mounted between the engine and the chassis of the vehicle
Data Source
AI summary
A hydraulic mount for a vehicle having both forward-rearward damper and upward-downward damper includes: a main rubber configured to define a fluid chamber; an orifice assembly that divides the fluid chamber into an upper fluid chamber and a lower fluid chamber, defines the upper fluid chamber together with the main rubber, and has an orifice arranged between the upper fluid chamber and the lower fluid chamber; and a diaphragm configured to define the lower fluid chamber at the lower side of the orifice assembly. In particular, the main rubber has a partition wall extending downwards so as to partition the upper fluid chamber into a first upper fluid chamber and a second upper fluid chamber in the state in which the lower end of the partition wall is coupled to the orifice assembly.