Hydraulic Device Air Flow Line for Tire Pressure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hydraulic systems for adjusting tire inflation in vehicles driven by hydraulic apparatuses face challenges with air circulation conduit production, particularly due to risks of hose damage and detachment under harsh conditions, and require large-diameter sealing elements.
Innovation Solution
A hydraulic apparatus with a shaft having a through channel and an air chamber at the distal end, isolated by sealing elements, allows air circulation to control tire pressure, featuring a flange with a release valve and an intake conduit for connecting a pressure source, minimizing the need for large-diameter seals and reducing hose-related risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hoses are used for air circulation between the stationary air pressure generating portion and the movable portion, then air circulation is achieved, but the risk of hose damage and detachment increases under harsh conditions
Solution Approach 1:
The patent extracts the air circulation function from external hoses and relocates it to an air chamber formed directly within the bearing of the wheel spindle. This eliminates the need for flexible hoses connecting stationary and movable portions, thereby removing the source of hose damage and detachment risks while maintaining air circulation capability for tire inflation control
Solution Approach 2:
The patent introduces an intermediate air chamber as a mediator between the stationary air pressure generating portion and the tire. This air chamber, formed within the bearing structure, serves as a protected intermediary space that receives air pressure through sealed conduits and distributes it to the tire, eliminating direct hose exposure to harsh external conditions
2Device complexity
If an air chamber is formed directly in the bearing of the wheel spindle, then assembly complexity is reduced, but large-diameter sealing elements are required
Solution Approach 1:
The patent nests the air chamber within the existing bearing structure of the wheel spindle, utilizing the internal volume of the bearing housing. This nesting approach allows the air chamber to be formed within the existing structural boundaries, thereby avoiding the need for large-diameter sealing elements that would be required if the air chamber were formed as a separate external component
Solution Approach 2:
The patent makes the bearing structure multi-functional by having it serve both its primary mechanical support function and as a housing for the air chamber. This universality allows the same structural component to fulfill multiple roles, eliminating the need for additional dedicated air chamber housing and associated large sealing elements
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 enables efficient tire inflation adjustment while protecting against hose-related stresses and costs, using standard-sized sealing elements and a simple assembly process.
Implementation Method 1
the through channel and the air chamber being made so as to allow an air circulation in order to control the pressure of a tire
Implementation Method 2
said release valve being configured to allow air to escape toward the surrounding environment when the pressure within the intermediate volume exceeds a threshold value
Data Source
AI summary
The invention relates to a hydraulic device including: a stator and a rotor, in which the rotor can rotate relative to the stator about a first axis of rotation; and a shaft mounted on the rotor such as to rotate therewith. The shaft has a wheel carrier provided at a proximal end thereof and designed to receive a rim and a tire. The shaft includes a through-channel extending from the proximal end to an opposing distal end. The hydraulic device includes an air chamber formed at the distal end of the shaft and connected to the through-channel. The through-channel and air chamber are produced such as to allow a flow of air in order to control the pressure of a tire.