Filter Device Floating Bearing Vibration Damping
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Solution Overview
Problem
Filter devices used in vibrating environments, such as mobile work equipment, experience destabilization of the filter medium due to vibrations, leading to impaired filter performance.
Innovation Solution
A filter device with a sealing ring forming a second floating bearing between the filter head and filter bowl, combined with a first floating bearing between the filter element and filter housing head, provides effective vibration damping through elastomeric bearing elements acting in mutually perpendicular directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the filter element is mounted using fixed bearings, then the structural stability is improved, but the vibration resistance deteriorates
Solution Approach 1:
The patent applies dynamic mounting by replacing fixed bearings with floating bearings that allow controlled movement. The filter element can move axially and radially within the housing, enabling it to adapt to vibrations rather than resisting them rigidly. This dynamic approach maintains structural integrity while accommodating vibrational forces.
Solution Approach 2:
The patent changes the mounting parameters from fixed to floating bearings, allowing the filter element to have degrees of freedom in movement. This parameter change enables the system to transition from a rigid structure to one that can dynamically respond to vibrational forces, improving vibration resistance while maintaining stability.
2Reliability
If multiple floating bearings are used, then the vibration damping is improved, but the device complexity increases
Solution Approach 1:
The sealing ring serves multiple functions simultaneously: it provides sealing between the filter element and housing, and it acts as a floating bearing enabling radial and axial movement. This multi-functionality reduces the need for separate bearing components, thereby reducing overall device complexity while maintaining effective vibration damping through multiple bearing points.
Solution Approach 2:
The patent merges the sealing function and bearing function into a single integrated solution. The sealing ring is designed to perform both sealing and floating bearing operations, combining what would traditionally require separate components. This merging simplifies the mounting structure while providing effective vibration damping through multiple floating bearing contacts.
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 enhances operational reliability by significantly reducing the impact of vibrations, ensuring the filter element remains stable and functional under operational loads.
Implementation Method 1
the respective sealing ring that forms the bearing is elastically flexible, preferably made of an elastomeric material
Implementation Method 2
an elastomeric bearing element is present in the overall connection between the filter element and the filter bowl of the housing, which is formed by the loose bearing between the filter element and the filter housing head and via the fixed bearing between the filter housing head and the filter housing bowl, so that the bearing formed has a good vibration-damping effect
Data Source
Figure 1
Figure 2~3
AI summary
A filter device comprises a filter housing (2, 4) accommodating a filter element (16) which separates an unfiltered substance chamber (26) from a filtrate chamber (20) within the filter housing (2, 4). The filter element (16) is sealed against the filter housing (2, 4) by a sealing device (36, 40). The disclosed filter device is characterized in that the filter element (16) is mounted inside the filter housing (2, 4) using movable bearings (32, 38).