Modular Multi-Gear Portal Assembly for Easier Wheel-End Installation
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Solution Overview
Problem
Existing portal wheel ends are costly, difficult to install, and require extensive maintenance due to their specific configurations and complex gear systems, making them inaccessible to many off-road enthusiasts.
Innovation Solution
A multi-gear portal design that integrates a unit bearing, allowing for a modular and universal application across various vehicles, including OEM models, with a bolt-on configuration that adapts to different axles and independent suspensions, while retaining OEM sensors and offering options for full-time or lockable wheel hubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional portal wheel ends are used to increase ground clearance and accommodate larger tires, then vehicle off-road capability is improved, but cost and complexity increase significantly
Solution Approach 1:
The patent creates a universal portal assembly that can be adapted to multiple axle types (front and rear, solid and independent suspension) through standardized mounting interfaces and modular components. This single design serves multiple functions across different vehicle applications, eliminating the need for vehicle-specific portal configurations and reducing overall system complexity.
2Length of stationary object
If traditional portal wheel ends are used to raise differential yoke height, then ground clearance is increased, but installation difficulty and maintenance requirements increase
Solution Approach 1:
The portal assembly is divided into modular segments including separable mounting brackets, independent gear housing sections, and removable wheel hub components. This segmentation allows for simplified installation and maintenance procedures, as individual components can be serviced or replaced without dismantling the entire portal system.
Solution Approach 2:
The patent introduces standardized mounting interfaces and adapter components that act as intermediaries between the portal assembly and various axle types. These intermediary elements facilitate easy installation and removal, allowing the portal to be mounted to different axle configurations without custom fabrication or complex alignment procedures.
3Power
If traditional portal wheel ends with multiple gears are used, then gear reduction is achieved, but maintenance frequency and cost increase
Solution Approach 1:
The patent combines multiple gear reduction stages into a single integrated portal housing, eliminating the need for separate oil reservoirs and maintenance systems for each gear stage. This merging of functions reduces the number of maintenance points and simplifies service procedures while maintaining the required gear reduction ratios.
Solution Approach 2:
The modular portal design allows individual gear components to be easily removed, inspected, and replaced independently. When maintenance is required, only the specific worn component needs to be discarded and replaced, while the remaining functional components are recovered and reused, reducing overall maintenance time and cost.
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 cost-effective, easily installable, and less maintenance-intensive portal system that offers universal applicability, increased ground clearance, and improved fuel efficiency, while maintaining the functionality and compatibility of OEM systems.
Implementation Method 1
a unit bearing attached to the housing and configured to be driven by the output axle
Implementation Method 2
a gear assembly disposed within the housing, the gear assembly comprising: an input gear linked to the axle shaft... an output gear disposed along a second rotational axis spaced at a distance lower than the first rotational axis
Data Source
AI summary
A portal assembly has a housing for attachment to the vehicle axle and enclosing a gear assembly having an input gear linked to the axle shaft for rotating around a first rotational axis and an output gear positioned within a second lower rotational axis that converts rotation of the input gear to rotation of the output gear. An output axle is driven by the output gear for transferring rotational force to a unit bearing located outside of the housing. The unit bearing is attached to and transfers rotational force to a wheel hub.