Compact Hydraulic Anti-Vibration Mount With Integrated Decoupling Valve
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Solution Overview
Problem
Existing controllable hydraulic anti-vibration mounts are bulky due to the interference of the auxiliary chamber, decoupling valve, and control device with the compensation chamber, limiting their compactness and functionality.
Innovation Solution
The auxiliary chamber and decoupling valve are positioned within the first armature, with the control device integrated into the first armature's recess, allowing for a more compact design and additional functions without increasing size, and the control device can selectively vent or empty the auxiliary chamber to block the decoupling membrane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the auxiliary chamber, decoupling valve, and control device are arranged at the level of the hydraulic compensation chamber, then the decoupling function is provided, but the bulk and size of the anti-vibration mount increase
Solution Approach 1:
The patent merges the auxiliary chamber, decoupling valve, and control device into the first armature structure. The recess in the first armature houses the control device, while the auxiliary chamber is formed within the same armature body, integrating multiple functions into a single structural component rather than arranging them separately at the compensation chamber level
Solution Approach 2:
The control device is nested within the recess of the first armature, and the auxiliary chamber is integrated within the same armature structure. This nesting arrangement allows the control device and auxiliary chamber to occupy space within the existing armature volume rather than adding external bulk to the overall mount
2Volume of stationary object
If the auxiliary chamber and decoupling valve are positioned within the first armature, then the mount becomes more compact, but the control device integration becomes more complex
Solution Approach 1:
The first armature is segmented into functional zones: the recess area houses the control device, while other portions contain the auxiliary chamber and structural elements. This segmentation allows each component to be positioned optimally within the armature without interfering with others, managing complexity through spatial organization
Solution Approach 2:
The first armature serves multiple functions: it provides structural support, houses the control device in its recess, contains the auxiliary chamber, and supports the decoupling valve. This multi-functionality reduces the need for separate components and simplifies the overall integration complexity
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 enables a more compact anti-vibration mount that can provide enhanced decoupling functionality, reducing noise transmission and allowing for additional features without increasing size, effectively improving the mount's performance and versatility.
Implementation Method 1
a decoupling valve comprising a elastomer decoupling membrane which separates the working chamber and the auxiliary chamber, said decoupling valve being adapted to absorb vibrations at certain frequencies above 20 Hz
Implementation Method 2
the first passage throttled having a resonant frequency between 5 and 20 Hz
Implementation Method 3
an elastomer body which connects the first and second armatures together and which at least partially delimits a working chamber
Data Source
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AI summary
A hydraulically steerable anti-vibration mount comprising a rigid pad (3), a bell-shaped elastomer body (4) flaring out from the pad to an annular frame (5), a working chamber (A), a compensation chamber (B), a constricted passage (C) connecting the working chamber to the compensation chamber, and an auxiliary chamber (D) separated from the working chamber by a decoupling valve (20) steered by a control device (15). The auxiliary chamber, the decoupling valve, and the control device are located within the pad.