Wheel Brake Pad Interface for Residual Drag Reduction
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Solution Overview
Problem
Existing wheel brake systems experience residual drag losses after a braking event due to inadequate separation of the brake pads from the brake disc, leading to increased fuel consumption and wear on brake components.
Innovation Solution
A wheel brake arrangement featuring a brake pad arrangement with an engagement interface section that extends from the upper to the lower peripheral end, allowing the brake pad arrangement to be efficiently forced away from the brake disc when the brake is released, thereby preventing residual drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake pad arrangement is held in contact with the brake disc during normal operation, then braking capability is maintained, but residual drag losses occur after braking events due to insufficient separation
Solution Approach 1:
The brake pad arrangement is designed to dynamically change its position relative to the brake disc, transitioning from a engaged state during braking to a separated state during normal operation. The engagement interface section enables this dynamic movement, allowing the brake pad to be forced away from the brake disc by the spreader plate when the brake is released, thereby eliminating residual drag while maintaining braking capability when needed.
2Reliability
If the brake pad arrangement is firmly connected to the spreader plate, then braking performance is improved, but removal of the brake pad arrangement for maintenance becomes difficult
Solution Approach 1:
The connection between the brake pad arrangement and spreader plate is segmented into two functional zones: the engagement interface section that provides firm connection during braking, and the extension portion that creates separation space for easy removal. This segmentation allows the brake pad arrangement to be securely held during operation while enabling simple maintenance by allowing radial extraction when worn.
3Reliability
If the engagement interface section extends fully from upper to lower peripheral ends, then axial displacement is completely prevented, but the structure becomes more complex
Solution Approach 1:
The engagement interface section extends in the axial direction to prevent displacement, while the additional extension from the upper peripheral end creates a radial removal path. This dimensional approach solves the problem by using axial extension for stability and radial extension for maintainability, avoiding the need for complex multi-directional constraints.
Data Source
AI summary
A wheel brake arrangement. The wheel brake arrangement comprises a brake pad arrangement, a spreader plate and an engagement interface section. The engagement interface section comprises a first interface surface forming part of the brake pad arrangement, and a second interface surface forming part of the spreader plate, the first and second interface surfaces being arranged in abutment with each other in at least an axial direction of the wheel brake arrangement during a brake release mode of the wheel brake arrangement to prevent axial displacement between the brake pad arrangement and the spreader plate.