Hydraulic Bearing Radial Stabilization via Segmented Outer Ring
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Solution Overview
Problem
Existing hydraulic bearing arrangements are unstable in the radial direction due to play in fastening sections, leading to deformation and noise issues, and require individual manufacturing for different engine weights, making adaptation complex and costly.
Innovation Solution
A bearing arrangement with an axial free area between the hydraulic bearing and housing, featuring a vulcanized suspension spring and fluid-filled chambers, and an outer ring with a waist portion and press-fit fastening sections to adjust screwing-on position, providing radial stabilization and modular compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the hydraulic bearing is pressed into the housing with tight fit to eliminate play, then radial stability is improved, but manufacturing complexity increases and noise is generated
Solution Approach 1:
The outer ring is divided into two separate mounting sections (first and second mounting sections) that can be independently designed and manufactured. This segmentation allows each section to be optimized for specific functions: one section provides radial stabilization while the other allows axial adjustment, eliminating the need for complex tight-fit designs and reducing manufacturing complexity
Solution Approach 2:
The housing bore acts as an intermediary element that receives both mounting sections of the outer ring. The housing bore is designed with specific features (such as a stabilizing section) that interact with the mounting sections to provide radial stability without requiring the mounting sections themselves to be complex or tightly fitted
2Adaptability or versatility
If individual manufacturing is used for different engine weights, then adaptability is improved, but productivity decreases
Solution Approach 1:
The hydraulic bearing is designed as a universal component with a standardized outer ring and mounting sections that can be used across different engine applications. The adaptability to different engine weights is achieved not by manufacturing different bearings, but by adjusting the mounting position within the housing bore, allowing one bearing design to serve multiple functions and applications
Solution Approach 2:
The mounting position of the hydraulic bearing is made adjustable rather than fixed. The outer ring can be positioned at different axial locations within the housing bore, and the support bearing's screw-on position can be adjusted via the axial free area. This dynamic adjustability allows the same bearing to adapt to different engine weights and applications without requiring individual manufacturing
3Manufacturing precision
If the support bearing is rigidly fixed to the housing, then positioning precision is improved, but adaptability decreases
Solution Approach 1:
The outer ring is pre-equipped with two mounting sections and an axial free area that are designed in advance to enable both precise positioning and adjustment. The mounting sections are预先 designed to provide stable mounting, while the axial free area is预先 prepared to allow for subsequent adjustment of the support bearing's screw-on position without compromising the initial positioning precision
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 solution achieves stable radial support, reduces noise, and allows for the same spring rate across different engine weights with adjustable spring rates, enabling mass production of bearings with reduced effort and cost-effective high-frequency insulation.
Implementation Method 1
a support spring (33) which supports a support bearing (32) and is vulcanized into the outer ring (50)
Implementation Method 2
a working chamber (37) and a compensation chamber (38), which are separated from each other by a partition (39) and fluid-conductingly connected to one another by a damping channel (40)
Implementation Method 3
a support spring (33) which supports a support bearing (32) and is vulcanized into the outer ring (50)
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a hydraulic bearing (10) for pressing into a housing (20), wherein the hydraulic bearing (10) comprises a support spring (33), a fluid-filled working chamber (37), a compensation chamber (38), and an outer ring (50). The support spring (33) supports a bearing surface (32) and is vulcanized to the outer ring (50). The working chamber (37) and the compensation chamber (38) are separated by a partition (39) and connected to each other via a damping channel (40). The outer ring (50) has a first mounting section (51), a second mounting section (52), and a waisted section (53) arranged between them. The first mounting section (51) and the second mounting section (52) can be force-fitted to the housing (20).