One-Piece Hydraulic Mount Rubber Element Sealing
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Solution Overview
Problem
Traditional hydraulic engine mounts require complex and time-consuming pre-installation procedures for the outer ring, which complicates the assembly process and may lead to sealing issues due to the separate nature of the main rubber element and outer ring.
Innovation Solution
A one-piece main rubber element with interlocking seal portions and a sealing bead, which simplifies installation and enhances sealing by integrating the upper, intermediate, and lower portions with protrusions and grooves for a tight locking seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main rubber element and outer ring are separate and distinct elements, then the sealing function can be provided, but the assembly process becomes complicated and time-consuming with extensive pre-installation procedures
Solution Approach 1:
The patent merges the main rubber element and outer ring into a single integrated main rubber element with an outer ring portion. This integration eliminates the need for separate assembly of these components, removing the complexity of pre-installation procedures while maintaining the sealing function through the integrated structure's interaction with the housing grooves.
Solution Approach 2:
The integrated main rubber element performs multiple functions simultaneously: it provides the sealing function through its outer ring portion that engages with housing grooves, maintains the structural function of the mount, and enables simplified installation. This multi-functionality resolves the contradiction by combining what were previously separate components into one universal element.
2Reliability
If the main rubber element and outer ring are separate and distinct elements, then the sealing function can be provided, but the installation procedures become time-consuming requiring cleaning, pretreatments, and coatings
Solution Approach 1:
By combining the outer ring and main rubber element into a single molded component, the patent eliminates the time-consuming pre-installation procedures (cleaning, pretreatments, and adhesive coatings) that were previously required for assembling separate parts. The integrated structure is installed as one piece, dramatically reducing installation time while preserving sealing effectiveness.
3Reliability
If the main rubber element and outer ring are separate and distinct elements, then the sealing function can be provided, but the assembly process requires extensive pre-installation procedures including cleaning, pretreatments, and coatings
Solution Approach 1:
The patent simplifies the manufacturing and assembly process by integrating the outer ring into the main rubber element as a single molded part. This eliminates the need for complex pre-installation procedures such as surface cleaning, pretreatments, and adhesive applications that were required when assembling separate components, thereby improving ease of manufacture.
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 improved design simplifies the installation process and provides enhanced sealing characteristics, ensuring effective fluid containment and maintaining low mount stiffness through the use of a highly elastic rubber and decoupler, while maintaining damping and isolation performance.
Implementation Method 1
the fluid in the inertia track is pumped back and forth from the upper chamber to the lower chamber through the inertia track
Implementation Method 2
The highly elastic rubber, along with a decoupler, contributes to good isolation characteristics
Implementation Method 3
The decoupler is a rubber disk that is captured between the top and bottom inertia track planes. The disk provides compliance as the fluid in the working chamber acts upon it, thus keeping the pressure from building up in the walls of the main rubber element
Data Source
AI summary
An improved hydraulic engine mount includes a main rubber element of one piece construction. The main rubber element includes an upper portion, an intermediate portion, and a lower portion. The lower portion includes an interlocking seal portion. The hydraulic engine mount includes an upper housing and a lower housing. The interlocking seal portion includes an upper protrusion operable to fit within an upper groove of the upper housing to fit together to form a tight locking seal. The upper housing further includes an upper protrusion operable to connect to an upper groove of the main rubber element. The upper groove of the main rubber element is annular and extends around the lower portion of the main rubber element. The lower portion of the main rubber element further includes a generally axially extending second protrusion abutting both the upper housing and the lower housing. The lower housing includes a protrusion abutting a second protrusion of the main rubber element and fitting within a second groove of the main rubber element. A third protrusion of the main rubber element abuts the protrusion of the lower housing, a top plate of an inertia track assembly, and defines the lower section of an upper chamber. Additionally, a sealing bead is molded to the bottom of the main rubber element to seal against the top of the inertia track.