Hydraulic Brake Block Return-Line Layout for Simpler Drilling
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Solution Overview
Problem
The existing hydraulic blocks for brake units in hydraulic power brake systems require complex drilling to route lines between hydraulic components, which complicates the manufacturing process and integration with vehicle brake systems.
Innovation Solution
The hydraulic block design incorporates a second return line that leads from a receptacle for an outlet valve through the simulator cylinder bore to a connection for the brake fluid container, simplifying the drilling process by allowing for more straightforward routing of brake fluid lines and reducing the complexity of line connections within the block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lines are routed through complex paths in the hydraulic block, then hydraulic connectivity is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent applies dimensionality change by routing the second return line through the simulator cylinder bore (a vertical dimension) rather than through horizontal passages. This vertical routing path simplifies the drilling process by utilizing the existing cylindrical space, reducing manufacturing complexity while achieving the required hydraulic connectivity between the outlet valve receptacle and brake fluid reservoir connection.
2Ease of manufacture
If the second return line is routed through the simulator cylinder bore, then drilling complexity is reduced, but space utilization becomes more critical
Solution Approach 1:
The simulator cylinder bore serves multiple functions: it houses the pedal travel simulator mechanism and simultaneously acts as a passage for the second return line. This multi-functionality allows the hydraulic line to be routed through existing structural space, simplifying manufacturing while efficiently utilizing the available volume within the hydraulic block.
Data Source
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AI summary
The invention relates to a bore of a hydraulic block (20) of a brake unit (3) of an externally powered hydraulic vehicle brake system (1).