Trailer Door Seal Staggered Lobe Design for Adaptability
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Solution Overview
Problem
Existing door seals for semi-trailer trucks and similar applications are expensive, difficult to install, and lack flexibility, as they are often pre-formed to fit specific door sizes and cannot be deformed without compromising their effectiveness.
Innovation Solution
A monolithic, resilient, and elastically deformable sealing system comprising first and second exterior seals and inner seals with lobes that interact in a staggered fashion to create a redundant, weather-resistant, and thermally robust seal, allowing for easy installation and deformation to fit various door sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-formed seals are used to fit specific door sizes, then sealing effectiveness is improved, but adaptability and ease of installation deteriorate
Solution Approach 1:
The seal is designed with variable geometric parameters including adjustable lobe configurations, modifiable sealing surfaces, and flexible dimensions that can be changed to accommodate different door sizes while maintaining sealing effectiveness through controlled deformation of the resilient material
Solution Approach 2:
The seal incorporates dynamic characteristics through its resilient and elastically deformable material properties, allowing it to adapt its shape and dimensions during installation and operation to fit various door configurations while maintaining reliable sealing contact
2Reliability
If pre-formed seals are used to fit specific door sizes, then sealing effectiveness is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The seal's geometric parameters are designed to be variable and adjustable, allowing a single seal design to accommodate multiple door sizes through controlled deformation, thereby simplifying installation procedures and reducing the need for complex custom-fitting processes while maintaining sealing effectiveness
3Adaptability or versatility
If seals are made from deformable material, then adaptability and ease of installation are improved, but seal reliability may deteriorate
Solution Approach 1:
The seal utilizes resilient material with controlled elastic properties that allow reversible deformation during installation to accommodate different door sizes, while the material's inherent recovery characteristics ensure that the seal maintains its integrity and sealing effectiveness after deformation, preventing reliability deterioration
Solution Approach 2:
The seal is constructed from composite or specially formulated resilient materials that combine deformability for easy installation with sufficient structural integrity and elasticity to maintain reliable sealing contact, resolving the contradiction between adaptability and seal effectiveness
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 sealing system provides a cost-effective, easy-to-install solution that maintains a fluid-tight seal over time, resistant to UV exposure and subzero temperatures, while accommodating repeated deformations and ensuring thermal insulation across the entire perimeter of hinged doors.
Implementation Method 1
The seal is formed from an elastomeric material that is elastically deformable, resilient, compressible and packable by rolling, stuffing or folding into a compact space. The seal material retains a constant deformation force over an extended period of time
Implementation Method 2
The seal material retains a constant deformation force over an extended period of time, and accommodates repeated deformations while maintaining a fluid-tight seal
Data Source
AI summary
A sealing system seals the perimeter of insulated hinged double doors. The sealing system includes first and second exterior seals made of a monolithic, resilient and elastically deformable material. The first exterior seal has an elongated lobe for contacting the exterior of said door, and both of the first and second exterior seals have an interior lobe which contact one another when the doors are closed. The sealing system further includes first and second inner seals made of a monolithic, resilient and elastically deformable material, each having a pair of spaced-apart sealing lobes. The inner seals are mounted to respective doors in a staggered fashion, such that the respective pairs of sealing lobes interact with one another to create a redundant, weather-resistant and thermally robust seal when the double doors are closed.