Integrated Check Valve for Brake Modulator Block Assembly
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Solution Overview
Problem
The existing brake system modulator blocks with check valves require complex flow passage structures and increased volume and assembly costs due to the need for separate installation of two check valves in three-way flow passages, complicating the assembly process and management.
Innovation Solution
Integration of two check valves into a single unit within a modulator block, featuring a valve housing with internal flow passages, opening and closing members, and a stopper member for one-way fluid control, simplifying the flow passage structure and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate check valves are installed in three-way flow passages, then one-way flow control is achieved, but the flow passage structure becomes complicated and assembly complexity increases
Solution Approach 1:
The patent combines two separate check valves into a single integrated check valve unit with a unified valve body containing multiple internal flow passages. Each passage has its own opening/closing member, but the valves share common components including the valve housing, stopper member, and filter member, thereby reducing part count and assembly complexity while maintaining one-way flow control functionality
Solution Approach 2:
The integrated check valve serves multiple functions simultaneously: it controls one-way flow in multiple discharge passages, filters foreign substances from fluid entering different passages, and provides a unified mounting interface. The single filter member serves all inlet passages, and the single valve body houses multiple flow control functions
2Reliability
If two separate check valves are installed, then one-way flow control is achieved, but the modulator block volume increases
Solution Approach 1:
The patent merges two separate check valve assemblies into one integrated unit, eliminating the need for two separate valve bodies, mounting bores, and associated hardware. The unified structure occupies less space than two separate installations would require, reducing the overall modulator block volume
Solution Approach 2:
The integrated check valve contains multiple flow passages and opening/closing members within a single valve body structure. The internal passages are nested within the valve housing, and multiple functional elements are arranged concentrically or adjacently within the same spatial envelope, maximizing space efficiency
3Reliability
If two separate check valves are installed with separate flow passages, then one-way flow control is achieved, but assembly process and cost increase
Solution Approach 1:
The patent combines two check valve assemblies into one integrated unit that requires only a single mounting operation. The unified valve body with multiple internal passages eliminates the need for separate machining of multiple bores and separate assembly steps, thereby simplifying the manufacturing process and reducing labor costs
Solution Approach 2:
The check valve is designed as a pre-assembled integrated unit with all internal components (flow passages, opening/closing members, filter member, stopper member) already positioned and secured during manufacturing. This preliminary assembly allows for simplified installation as a single component rather than multiple separate assembly operations
4Reliability
If separate check valves are installed requiring forced press-fitting, then one-way flow control is achieved, but management becomes difficult due to precise mounting requirements
Solution Approach 1:
The patent integrates multiple check valve functions into a single unit with one mounting interface, eliminating the need for multiple precise press-fitting operations. The unified stopper member provides a single location for forced insertion, reducing the cumulative error potential and simplifying quality control during assembly
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
This integration reduces the number of parts, simplifies the flow passage structure, decreases the modulator block's volume and assembly time, and enhances design flexibility for one-way oil flow control without altering the flow passage structure.
Implementation Method 1
a first opening and closing member provided in the first internal flow passage and opened and closed by a hydraulic pressure of the fluid; a second opening and closing member provided in the second internal flow passage and opened and closed by the hydraulic pressure of the fluid
Implementation Method 2
a first elastic member configured to elastically press the first ball toward the first orifice, and the second opening and closing member may include a second ball configured to open and close in contact with a second orifice provided in the second internal flow passage, and a second elastic member configured to elastically press the second ball toward the second orifice
Data Source
AI summary
Disclosed is a check valve and a modulator block including the same. An embodiment of the present disclosure provides a check valve comprising a valve housing including first and second internal flow passages each formed to pass through an interior of the valve housing and having an inlet through which a fluid is introduced and an outlet through which the fluid is discharged; a first opening and closing member provided in the first internal flow passage and opened and closed by a hydraulic pressure of the fluid; a second opening and closing member provided in the second internal flow passage and opened and closed by the hydraulic pressure of the fluid; and a stopper member press-fitted to the valve housing.