Hydraulic Mount Fluid Channel Structure for Vibration Damping
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Solution Overview
Problem
Existing mount designs may not provide sufficient damping, can be complex, and are often expensive to produce, necessitating a solution that minimizes these challenges.
Innovation Solution
A hydraulic mount design comprising a first and second housing member, an inner tube, an inner sleeve, an outer sleeve, and a flexible member, which creates fluid chambers in communication through a fluid channel to provide damping and restrict relative movement between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing mount designs are used, then structural complexity is reduced, but damping performance is insufficient
Solution Approach 1:
The patent employs hydraulic fluid within a chamber bounded by the inner tube, outer sleeve, and flexible member to provide damping. The fluid resists compression and expansion movements, creating a hydraulic damping effect that dissipates vibrational energy. This hydraulic mechanism enables effective damping performance without requiring complex mechanical linkages or multiple components.
Solution Approach 2:
The flexible member (bellows) serves as a flexible shell that can expand and contract axially while maintaining fluid sealing. This flexible membrane allows the hydraulic fluid to be contained in a compact configuration and enables the damping mechanism to respond to relative movements between mounted components, providing effective damping with a simple structural arrangement.
2Ease of manufacture
If existing mount designs are used, then manufacturing simplicity is maintained, but production cost increases
Solution Approach 1:
The hydraulic damping mechanism uses a simple fluid-filled chamber design that can be manufactured using conventional techniques. The hydraulic fluid provides the damping function without requiring expensive materials or complex assembly processes, achieving both manufacturing simplicity and effective damping performance.
Solution Approach 2:
The flexible member is designed as a bellows structure that can be manufactured using standard forming techniques. This flexible shell provides both the sealing function and the mechanical compliance needed for damping, eliminating the need for expensive specialized components while maintaining manufacturing simplicity.
3Reliability
If existing mount designs are used, then component count is reduced, but damping effectiveness decreases
Solution Approach 1:
The hydraulic fluid serves multiple functions simultaneously: it provides damping through resistance to compression and expansion, maintains sealing between the inner tube and outer sleeve, and transmits forces between mounted components. This multi-functionality achieves effective damping without requiring separate components for each function.
Solution Approach 2:
The flexible member serves dual purposes as both a sealing element and a mechanical element that enables axial movement while containing the hydraulic fluid. This multi-functional design provides effective damping with minimal components, eliminating the need for separate seals and movement mechanisms.
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 hydraulic mount effectively dampens relative movement between components while being potentially simpler and less expensive to produce, offering improved performance and cost-effectiveness.
Implementation Method 1
hydraulic mount may include a first fluid chamber and a second fluid chamber. A first fluid chamber and a second fluid chamber may be in fluid communication via the fluid channel.
Implementation Method 2
hydraulic mount may include a first housing member, a second housing member connected to the first housing member, an inner tube disposed at least partially in the first housing member
Data Source
AI summary
A hydraulic mount includes a first housing member, a second housing member connected to the first housing member, an inner tube disposed at least partially in the first housing member, an inner sleeve connected to the inner tube, an outer sleeve disposed at least partially around the inner sleeve, and a flexible member disposed at least partially in the first housing member and connected to the outer sleeve. The inner sleeve may include an outer surface and a fluid channel disposed in the outer surface. The flexible member may cooperate with at least one of the first housing member and the second housing member to provide a first fluid chamber and a second fluid chamber. The first fluid chamber and the second fluid chamber may be in fluid communication via the fluid channel.