Valve System Elastomeric Seal Rim Mounting
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Solution Overview
Problem
Existing tire parameter monitoring systems face challenges in providing a reliable seal between the elastically deformable valve stem and the wheel rim, while also being easily mountable.
Innovation Solution
A valve system comprising a valve body with elastomeric overmolding and a connection element, featuring separate parts for attachment to both the electronic module and the wheel rim, utilizing a friction fit and mechanical engagement to enhance sealing, with a detachable design for easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-piece snap-in valve body is used, then the assembly is simple, but the seal reliability between the valve stem and wheel rim deteriorates
Solution Approach 1:
The valve system is divided into separate components: a connection element with mounting section for the wheel rim, a valve body with elastomeric material, and an electronic module. This segmentation allows each component to be optimized for its specific function - the mounting section for secure attachment and sealing, the valve body for flexible sealing against the elastomeric material, and the electronic module for sensing. The separate parts can be assembled in sequence to achieve both ease of assembly and reliable sealing.
Solution Approach 2:
The valve body incorporates elastomeric material that provides flexible sealing capability against the wheel rim bore. The connection element includes a mounting section designed to work with this elastomeric material to create a reliable seal. This composite approach combines rigid structural elements with flexible sealing materials to achieve both assembly simplicity and seal reliability.
2Reliability
If the valve stem is made elastically deformable for sealing, then the seal quality improves, but the assembly complexity increases
Solution Approach 1:
The elastomeric sealing function is separated into a dedicated valve body component rather than being integrated into the rigid connection element. This allows the elastomeric material to deform for sealing while the connection element maintains its structural integrity for easy attachment to the wheel rim and electronic module. The segmentation enables independent optimization of sealing performance and assembly simplicity.
Solution Approach 2:
The elastomeric material undergoes elastic deformation to change its shape and fit tightly against the wheel rim bore, providing reliable sealing. This parameter change (shape deformation) occurs automatically during assembly and operation, eliminating the need for complex adjustment mechanisms while ensuring seal quality.
3Ease of operation
If a detachable connection element is used, then the ease of assembly improves, but the structural complexity increases
Solution Approach 1:
The connection element is designed as a separate detachable component with specific engagement features that interface with both the wheel rim bore and the valve body. This segmentation allows for simple sequential assembly: first attaching the connection element to the wheel rim, then attaching the valve body to the connection element. The standardized interface reduces overall structural complexity despite the modular design.
Solution Approach 2:
The connection element serves multiple functions: it provides the mounting interface for the wheel rim, the connection interface for the valve body, and structural support for the entire assembly. This multi-functionality consolidates several components into one, reducing overall structural complexity while maintaining ease of assembly through its detachable design.
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 solution provides a reliable and easy-to-assemble tire parameter monitoring system with improved sealing between the valve stem and wheel rim, ensuring accurate parameter measurement and enhanced durability.
Implementation Method 1
a valve body (10) including an elastomeric material
Implementation Method 2
The mounting section may, for example, be sized and shaped to be insertable into the hole in the wheel rim with a friction fit
Data Source
AI summary
A valve system for a tire parameter monitoring system includes a valve body having an elastomeric material and a connection element. The connection element includes a first engaging device with which the connection element is detachably connected to an electronic module of the tire parameter monitoring system, a second engaging device with which the connection element is detachably connected to the valve body, and a mounting section adapted to be detachably connected to a hole in a wheel rim. A tire parameter monitoring system and a method for mounting a tire parameter monitoring system to a wheel rim of a vehicle are also provided.