Reversible Wheel Cap Impeller for Brake Cooling and Dust Exclusion
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Solution Overview
Problem
Traditional wheel cap designs fail to efficiently manage airflow for brake cooling while preventing contamination by dust and dirt in diverse operational environments, leading to unsatisfactory brake performance and safety risks.
Innovation Solution
A wheel cap arrangement with a detachable impeller having directionally shaped vanes that can be oriented to either receive air for cooling or discharge air to prevent dust and dirt ingress, comprising an outer cap with centrally and peripherally arranged holes, allowing adaptation to different operational conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wheel cap designs are used, then the structure is simple, but brake cooling efficiency is insufficient and contamination control is poor
Solution Approach 1:
The wheel cap is divided into multiple functional components: an outer cap with centrally arranged through-holes for air intake, peripherally arranged through-holes for air discharge, and a detachable impeller with directionally shaped vanes. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability.
Solution Approach 2:
The impeller is designed to be detachably attached to the outer cap, allowing it to be arranged in different orientations. This dynamic configuration enables the wheel cap to adapt to varying operational conditions - rotating in one direction for brake cooling and in the opposite direction for contamination prevention - thereby improving brake performance without requiring a completely different wheel cap design.
2Temperature
If the impeller rotates in one direction for brake cooling, then brake temperature is reduced, but contamination protection is compromised
Solution Approach 1:
The impeller can be arranged to rotate in opposite directions by detaching and reattaching it in different orientations. When rotated in the first direction, the vanes receive air through centrally arranged through-holes and direct it to cool the brake. When rotated in the opposite direction, the vanes discharge air through peripherally arranged through-holes, creating a protective airflow that prevents dust and dirt from entering the wheel hub and contaminating the brake.
Solution Approach 2:
By changing the rotational direction parameter of the impeller, the airflow pattern changes from an inward cooling flow to an outward protective flow. This parameter change allows the same physical structure to serve dual functions: brake cooling when rotating in one direction and contamination prevention when rotating in the opposite direction.
3Productivity
If the wheel cap is designed for high-speed highway operation, then brake cooling is optimized, but performance in high-dust environments deteriorates
Solution Approach 1:
The detachable impeller design provides environmental adaptability by allowing operators to change the impeller orientation based on operating conditions. For high-speed highway operation, the impeller is arranged in the first orientation to maximize brake cooling efficiency. For low-speed high-dust environments like construction sites, the impeller is arranged in the opposite orientation to prevent contamination, thus adapting the wheel cap's function to match the operational environment.
Solution Approach 2:
The wheel cap design achieves multi-functionality through the reversible impeller configuration. A single wheel cap structure can perform both brake cooling and contamination prevention functions by simply changing the impeller orientation. This universal design eliminates the need for multiple specialized wheel caps for different environments, improving both productivity and adaptability.
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 arrangement effectively controls brake temperature and reduces contamination, improving brake performance and safety by optimizing airflow based on vehicle operation, whether at high speed or in high-dust environments.
Implementation Method 1
an impeller detachably attached to the outer cap, the impeller comprising a centrally arranged impeller eye and a plurality of directionally shaped vanes arranged around the periphery of the impeller eye; wherein the impeller is furthermore detachably arrangeable to the wheel hub such that it is arrangeable in a first orientation relative to the wheel hub in which the vanes are arranged in a first impeller direction to receive air from the centrally arranged through-holes of the outer cap and to provide the received air to the wheel brake
Implementation Method 2
is arrangeable in a second orientation relative to the wheel hub in which the vanes are arranged in a second impeller direction to discharge air from the wheel brake through the peripherally arranged through-holes of the outer cap
Implementation Method 3
the vanes are directionally shaped to receive air from the centrally arranged through-holes of the outer cap and to provide the received air to the wheel brake
Data Source
Figure 1
Figure 2a~2b
Figure 3
AI summary
A wheel cap arrangement (101) for a vehicle wheel (14) having a wheel hub (15) and a wheel brake (16) arranged at the wheel hub (15), the wheel cap arrangement (101) comprising: an outer cap (103) configured to be attached to the wheel hub (15), the outer cap (103) comprising a plurality of centrally arranged through-holes (105) and a plurality of peripherally arranged through-holes (107); an impeller (120) detachably attached to the outer cap (103), the impeller (120) comprising a centrally arranged impeller eye (122) and a plurality of directionally shaped vanes (124) arranged around the periphery of the impeller eye (122); wherein the impeller (120) is furthermore detachably arrangeable to the wheel hub (15) such that it is arrangeable in a first orientation relative to the wheel hub (15) and a second orientation relative to the wheel hub (15).